UPVC Window Repairs in London! Costs & What to Expect?
No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts Excellent 100% customer satisfaction No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts Excellent 100% customer satisfaction GET 20% OFF ON WINDOW REPAIRS: BULK DISCOUNT No fix no fee guarantee Days Hours Minutes Seconds Looking for UPVC window repairs in London? Upvc windows are essential for maintaining a warm, secure, and energy-efficient home. Over time, windows can develop draughts, faulty locks, misted glass, or broken hinges. Professional repairs restore functionality without costly replacements. Here’s what to expect and how much it costs. Common UPVC Window Problems We Repair We specialise in repairing UPVC windows across London, offering a fast, affordable, and reliable service. Whether you have faulty hinges, broken locks, or condensation between glass panes, we provide expert solutions to make your windows as good as new. Draughty Windows & Faulty Hinges If you feel cold air coming through your closed windows, the hinges may be misaligned or worn out. Replacing both hinges ensures a tight seal, improving insulation and preventing heat loss. Broken Window Locks & Security Issues A faulty window lock can put your home at risk. If your handle turns but doesn’t lock properly, or if the mechanism is jammed, we can replace it with a secure, high-quality locking system. Misted or Foggy Double Glazed Glass If condensation is trapped between your double glazed panes, the seal has failed, reducing energy efficiency. We offer glass replacement services with a 5-year guarantee against condensation. Stiff or Loose Window Handles Window handles that feel loose, stiff, or wobbly can be replaced quickly to restore smooth operation. Cracked or Damaged Window Glass A broken window pane is a security hazard and reduces insulation. We provide toughened and standard double-glazed unit replacements. What to Expect from a Professional Window Repair Service When you hire a professional window repair company in London, the process is typically straightforward: 1- Inspection & Diagnosis A trained technician will assess the issue and determine the most effective repair solution. This may involve checking the hinges, locks, or seals to identify the root cause. 2- Transparent Quote Once the problem is identified, you’ll receive a fixed price quote, including parts and labour. At Window Fixers, we provide clear pricing with no hidden fees. 3- On-Site Repairs Most repairs, such as hinge or lock replacements, can be completed on-site within the same visit. Glass replacement may require an additional visit if custom-cut glass is needed. 4- Quality Assurance & Warranty A reputable repair service should offer a guarantee on all work. Here at Window Fixers, we provide: 1-year guarantee on all UPVC window repairs 5-year guarantee on double glazed unit replacements How Much Do UPVC Window Repairs Cost in London? Here’s a breakdown of typical repair costs: UPVC Window Hinge Replacement £175 – £198 per window (includes both hinges) Why replace both? Changing both hinges ensures proper alignment and prevents future strain. Discount: 20% off when repairing three or more windows. UPVC Window Lock replacement £175 per window (includes full internal locking mechanism) UPVC Window Handle Replacement £108 for a single handle £54 per additional handle on the same job £45 each if added to a hinge or lock repair Double Glazed Glass Replacement Prices start from £220* per square metre for standard glass£270* per square metre for toughened safety glass Note: Prices include parts and labour. Why Choose Window Fixers for UPVC Window Repairs in London? No Fix, No Fee Guarantee – You only pay if we fix the issue. No Call-Out Charge – Free assessment and quote. Fast Response – Same-day and next-day service available. Affordable Pricing – Fixed prices with no hidden costs. Experienced Technicians – Specialists in UPVC window and door repairs. Guaranteed Work – 1-year guarantee on repairs and 5 years on glass replacements. Share Book Your UPVC Window Repairs in London Today! If your UPVC windows are not working properly, don’t wait for the problem to get worse. Contact Window Fixers for professional UPVC window repairs in London and restore your windows to perfect condition. WhatsApp Share a photo/video Call 0208 064 1844 9am to 5pm Email [email protected] Related Topics View all Ultimate Guide to Maintain Windows and Doors Common Issues With UPVC Windows Window Condensation causes and preventions 7 Essential Tips to Fix Your Windows Quickly Ultimate Guide to Maintain Windows and Doors Common Issues With UPVC Windows Window Condensation causes and preventions 7 Essential Tips to Fix Your Windows Quickly
Why Won’t My uPVC Door Close Properly? Common Problems & Fixes
No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts Excellent 100% customer satisfaction No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts Excellent 100% customer satisfaction No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts GET 20% OFF ON WINDOW REPAIRS: BULK DISCOUNT No fix no fee guarantee Days Hours Minutes Seconds A properly functioning uPVC door should close smoothly, provide a secure seal, and lock effortlessly. However, over time, problems like misalignment, faulty locks, and worn-out hinges can make closing and locking difficult. Fixing uPVC door issues promptly ensures security, insulation, and long-term durability. In this guide, explore common uPVC door problems, their causes, and practical solutions to restore smooth operation. Common uPVC Door Issues and Why They Happen A uPVC door that won’t close properly or is difficult to lock usually points to one of these common issues: 1 – uPVC Door Misalignment Misalignment happens when the door drops slightly or shifts due to wear and tear. Signs include: The door scraping the frame when closing. The lock no longer lining up with the strike plate. Gaps appearing around the edges, causing draughts. Solution: Adjusting the door hinges usually fixes misalignment. If the issue persists, hinge realignment or replacement may be needed. 2 – Faulty Multi-Point Locking System uPVC doors use multi-point locking systems that can become stiff or fail to engage properly. Signs of lock failure: The key turns but doesn’t lock the door. The handle feels loose or stiff when lifting. The lock won’t fully engage into the frame. Solution: Applying lubricant may help, but if the mechanism is worn or broken, fixing uPVC door issues requires lock replacement. Our professional uPVC multi point door lock mechanism replacement service available from £250* supply & fit 3 – uPVC Door Hinges Need Adjustment or Replacement Worn-out or loose hinges can cause the door to sag, leading to poor alignment. Signs of hinge issues: The door drops slightly when opened. The door feels stiff when closing. The hinges appear loose or rusty. Solution: Tightening or adjusting the hinges can realign the door. If hinges are worn out, replacement is the best fix. Hinge replacements start from £70 per hinge supply & fit minimum 3 hinges. 4 – Weather Seals Are Worn Out Over time, rubber seals around the door frame may wear out, leading to draughts and poor insulation. Signs of seal failure: Cold air coming through even when the door is shut. Visible cracks or shrinkage in the rubber seal. Increased noise from outside. Solution: Replacing the weather seal ensures proper insulation and energy efficiency. Professional uPVC door seal replacement can restore insulation. 5 – Key Cylinder Issues The key cylinder, or euro cylinder, is a crucial part of your uPVC door’s locking system. If it starts to fail, you might experience: Key Won’t Turn in the Lock This is often caused by a worn-out cylinder, dirt inside the lock, or an issue with the multi-point locking mechanism. Key Stuck in Lock This happens when internal pins or springs are worn or misaligned. Forcing the key can break it inside the lock. Key Spins Without Unlocking the Door This usually means the cam inside the cylinder has failed or the locking mechanism is broken. Door Won’t Lock Even When Key Turns The euro cylinder might be faulty, or the door is misaligned, preventing the locking points from engaging. Solution: Try lubricating the lock with a graphite-based spray (avoid oil-based lubricants) Check if the door is misaligned and adjust the hinges if needed If the key is stuck, gently wiggle it out rather than forcing it If the lock is spinning or failing to engage, the cylinder needs replacing At Window Fixers, we can replace faulty euro cylinders and multi-point locking systems quickly and affordably. Contact us to get a free quote today! 6 – Broken Door Handle A damaged or loose door handle is a common problem that can make locking or unlocking the door difficult. Causes include: Loose screws Over time, screws securing the handle can become loose, making the handle wobbly. Worn-out internal mechanism The spindle or spring inside the handle can weaken with repeated use. Handle won’t return to its original position This often means the internal spring is broken. Handle is stuck or stiff This could be due to a faulty locking mechanism inside the door. Solution: Tighten the screws securing the handle. If the handle doesn’t return to position, it may need replacing. If the problem is caused by a faulty lock mechanism, replacing both the handle and lock is recommended. DIY Fixes vs. Professional uPVC Door Repairs While minor adjustments like hinge tightening or lubrication can be done at home, some uPVC door troubleshooting requires expert repair. When Can You Fix It Yourself? Adjusting door hinges to fix minor misalignment. Cleaning and lubricating locks and handles. Replacing worn-out weather seals. When to Call a Professional? The door is severely misaligned and won’t close properly. The lock mechanism is damaged and won’t engage. The hinges are broken or worn beyond repair. There’s persistent draught despite sealing attempts. Our professional repairs ensure lasting results and security. No call-out charges – pay only if the issue is fixed! Prevent Future uPVC Door Problems To avoid frequent uPVC door issues, regular maintenance is key. Top Tips for Long-Term uPVC Door Care Lubricate locks and hinges every six months to prevent stiffness. Check and adjust door alignment periodically. Keep the door clean to prevent dirt buildup. Inspect weather seals for signs of wear and replace them when needed. Regular maintenance helps prevent expensive repairs and keeps doors in excellent working condition. Professional uPVC Door Repairs Near You! At Window Fixers, we specialise in professional uPVC door
UPVC Double Glazed Window Repairs: Common Problems and Fixes
No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts GET 20% OFF ON WINDOW REPAIRS: BULK DISCOUNT No fix no fee guarantee Days Hours Minutes Seconds UPVC double glazed windows are a great investment for energy efficiency, security, and noise reduction. However, over time, they can develop issues that affect performance. If your windows are draughty, misted up, or have faulty locks, addressing these problems quickly can save you money and improve comfort. Homeowners often overlook minor window faults, thinking they are insignificant. However, even a small gap in the seal or a damaged hinge can lead to heat loss, increased energy bills, and security risks. At Window Fixers, expert technicians specialise in resolving these problems efficiently, ensuring that properties remain warm, secure, and visually appealing. 1 – Misted or Foggy Glass (Condensation Inside the Window) Problem: Misted or foggy windows indicate that the double glazing seal has failed, allowing moisture to penetrate between the panes. When this happens, the insulating gas inside the unit escapes, reducing thermal efficiency. As a result, homes become less energy-efficient, leading to higher heating costs. Solution: Replacing the glass unit is the most effective solution for condensation inside double glazing. Simply cleaning the glass won’t resolve the issue, as the damage is within the sealed unit itself. At Window Fixers, professional double glazed glass replacement services are available from £180 per square metre for standard double glazed units. For areas requiring extra durability, toughened safety glass is available from £220 per square metre, ensuring both security and energy efficiency. With a five-year guarantee on condensation, homeowners can feel confident that their windows will remain clear and well-insulated. 2 – Dealing with Broken or Cracked Glass Problem: Cracked or shattered glass presents an immediate security risk, making it essential to arrange a replacement as soon as possible. Impact damage from accidents, attempted break-ins, or sudden temperature changes often leads to fractures in double glazing. In some cases, older glass units develop stress cracks due to thermal expansion and contraction over time. Solution: Opting for professional glass replacement ensures that the window’s integrity is restored. At Window Fixers, replacement glass is cut to precise measurements and expertly fitted, with options including standard double glazing or reinforced toughened safety glass for added protection. Competitive pricing starts at £180 per square metre, providing an affordable yet high-quality solution. Addressing glass damage promptly prevents further complications such as draughts, moisture ingress, and weakened security. 2 – Why Do UPVC Windows Develop Draughts? Problem: A common complaint among homeowners is the presence of cold air seeping through closed windows. This issue often results from worn or broken hinges, misaligned sashes, or damaged rubber seals. Over time, hinges may weaken, preventing the window from closing tightly against the frame. In other cases, rubber gaskets deteriorate, creating small gaps that allow draughts to enter. Solution: Fixing draughty windows requires identifying the exact cause of the problem. If hinges are faulty, replacing them restores the correct positioning of the sash against the frame, eliminating any unwanted airflow. At Window Fixers, hinge replacements start from £145 per window, ensuring a secure and energy-efficient solution. When multiple windows require attention, a 20% discount applies for three or more hinge repairs, making it a cost-effective choice for homeowners. 3 – Signs of Broken, Snapped, Rusted, or Warped Hinges Problem: Faulty window hinges compromise security, insulation, and ease of operation. Some common signs that indicate a hinge problem include: Snapped Hinges: If a hinge has broken completely, the window may feel loose or even fail to close securely. Rusting or Corrosion: Over time, hinges exposed to moisture can rust, leading to stiffness and difficulty in movement. Warped or Bent Hinges: A warped hinge prevents the window from closing evenly, allowing draughts and water ingress. Solution: Replacing hinges promptly restores smooth operation and weatherproofing. At Window Fixers, skilled technicians assess the condition of the hinges and provide high-quality replacements, ensuring durability and performance. 4 – Why Do UPVC Window Locks Stop Working? Problem: A stiff or broken lock compromises home security, making it difficult to secure the window. Internal locking mechanisms can fail due to wear and tear, misalignment, or dirt buildup, preventing smooth operation. Solution: Restoring a window’s locking function may require realigning the sash or replacing the internal lock mechanism. At Window Fixers, window lock repairs start at £145 per window, including all parts, labour, and VAT. A fully functioning lock improves security and ensures ease of use. 5 – Window Handles That Won’t Turn or Have Snapped Off Problem: A damaged window handle makes opening or closing the window difficult, which can be frustrating and inconvenient. Over time, handles may become loose, stop locking properly, or even snap off completely. Solution: Replacing a faulty handle ensures smooth operation and improved security. At Window Fixers, handle replacements start at £90 per window, with additional handles available for £45 each if replaced during another repair. Prompt handle replacement prevents further wear and tear on internal locking mechanisms. 6 – Noisy or Sticking Windows – Causes & Prevention Problem: Windows that stick or make excessive noise often suffer from dirt buildup, rusted hinges, or loose fittings. Dust and debris increase friction, making it difficult to operate the window smoothly. If screws or brackets become loose, the window may rattle or shift slightly when opened or closed. Solution: Regular cleaning and lubrication of moving parts help maintain smooth operation. Using silicone-based lubricant on hinges and locks prevents stiffness, while tightening screws ensures a secure fit. When issues persist despite maintenance, professional repairs may be necessary to replace worn components. Why Choose Window Fixers for UPVC Double Glazed Window Repairs? Keeping windows in top condition is essential for security, energy efficiency, and comfort. At Window Fixers, a team of skilled professionals delivers expert repairs, offering a no fix, no fee guarantee and no call-out charges. Transparent pricing ensures customers receive the best value,
Ultimate Guide to Window and Door Maintenance for Long-Lasting Performance
No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts Excellent 100% customer satisfaction No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts Excellent 100% customer satisfaction No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts GET 20% OFF ON WINDOW REPAIRS: BULK DISCOUNT No fix no fee guarantee Days Hours Minutes Seconds Proper window and door maintenance ensures smooth operation, enhances energy efficiency, and prevents costly repairs. Regular window and door upkeep keeps your home secure, comfortable, and looking its best. Follow these expert tips to maintain your uPVC and aluminium windows and doors for years to come. Why Window and Door Maintenance Matters Consistent window and door servicing prevents draughts, condensation, and mechanical faults. Over time, dirt, moisture, and weather exposure can cause damage, leading to misalignment, leaks, and difficulty in operation. Routine window and door care extends lifespan, enhances security, and reduces energy costs. Key Benefits of Window and Door Upkeep ✅ Improve energy efficiency Well-maintained seals and frames prevent drafts and heat loss. ✅ Enhance security Functioning locks and hinges keep your home safe. ✅ Prevent costly repairs Catching issues early saves money on replacements. ✅ Boost kerb appeal Clean and damage-free windows and doors add value to your property. Essential Window Maintenance Tips Clean Windows Regularly Dirt and grime can affect appearance and performance. Use a mild detergent with warm water to clean glass and frames. Avoid abrasive cleaners that could damage protective coatings. Tip: A microfibre cloth ensures streak-free glass. Check and Lubricate Moving Parts Over time, hinges and locks can become stiff, affecting operation. Apply a silicone-based lubricant every 6–12 months to keep moving parts in good condition. Tip: Regular lubrication prevents rust and extends the life of window hardware. Inspect Window Seals Seals play a crucial role in window and door maintenance by preventing draughts and moisture penetration. Check for cracks or wear and replace damaged seals to maintain insulation. Tip: If you feel a draught even when windows are closed, faulty seals may be the cause. Test Locks and Handles Loose or broken locks and handles compromise security and usability. Test them regularly to ensure they operate smoothly. Solution: Window Fixers provides window lock repairs for £145 per window and handle replacements from £90. Check for Condensation Between Panes Condensation inside double glazed windows indicates seal failure, reducing energy efficiency. This requires professional window and door repair to replace the glass unit. Solution: Window Fixers offers double glazed glass replacement from £220 per square metre, with a five-year guarantee. How to Maintain Doors Clean Door Surfaces and Frames Dirt, dust, and exposure to weather can affect door performance. Use a damp cloth with mild soap to clean uPVC and aluminium doors. Tip: Avoid excessive moisture, especially around locks and hinges. Check Door Seals for Draughts A well-sealed door enhances insulation. Damaged or worn-out seals can cause heat loss and allow moisture inside. Inspect door gaskets and replace them if necessary. Tip: Sealing gaps in doors improves both insulation and soundproofing. Lubricate Hinges and Locks Doors that squeak or resist closing may need lubrication. Apply a silicone-based lubricant to hinges and locks for smooth operation. Tip: If the lock feels stiff, servicing may be required to prevent further issues. Adjust Door Hinges for Proper Alignment Over time, doors may sag or shift out of place, making them difficult to close. Tighten loose hinges and adjust alignment if needed. Solution: Window Fixers can inspect and adjust door hinges for better performance. Signs You Need Window and Door Repairs Common Window Problems Persistent draughts Indicates worn-out seals or misalignment. Difficulty opening or closing Hinges, locks, or frames may need adjustment. Condensation between double-glazed panes – A failed seal requires glass replacement. Loose or broken handles A security risk that should be fixed immediately. Common Door Problems Misaligned or sticking door Hinges may need adjustment. Lock issues Difficulty locking or unlocking indicates mechanical faults. Weather damage Fading, peeling, or cracks require maintenance. Ignoring these signs can lead to increased energy costs, security risks, and more expensive repairs in the future. Professional Window and Door Servicing in London & Kent While DIY window and door maintenance helps prevent issues, professional repairs ensure long-lasting results. Window Fixers offers no call-out charges, a no-fix-no-fee guarantee, and fast response times. Expert Window and Door Repair Services Include: Hinge replacements: £175 to £198 per window, with a 20% discount for three or more. Window lock repairs: £175 per window, including parts and labour. Handle replacements: £108 for one, £54 each for additional handles on the same job. Double-glazed glass replacements: From £220 per square metre, with a five-year guarantee. How Window and Door Maintenance Improves Energy Efficiency Proper window and door upkeep enhances insulation, reduces energy loss, and cuts down heating costs. Key Benefits of Regular Window and Door Servicing: Sealed frames prevent heat loss Reduces draughts and improves comfort. Properly maintained locks and hinges eliminate air gaps Enhances insulation. Double glazed glass replacement boosts thermal efficiency Keeps warmth inside. If your windows or doors aren’t performing efficiently, professional repairs restore insulation and comfort. Share Get a Free Quote for Window and Door Maintenance Regular window and door care ensures long-lasting performance, prevents costly repairs, and improves home security. If you need repairs or replacements, professional services guarantee hassle-free solutions. WhatsApp Share a photo/video Call 0208 064 1844 9am to 5pm Email [email protected] Related Topics View all Common Issues With UPVC WindowsWindow Condensation 7 Essential Tips to Fix Your Windows Quickly Common Issues With UPVC Windows Window Condensation causes and preventions 7 Essential Tips to Fix Your Windows Quickly
Double Glazing Repairs: 7 Essential Tips to Fix Your Windows Quickly
No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts GET 20% OFF ON WINDOW REPAIRS: BULK DISCOUNT No fix no fee guarantee Days Hours Minutes Seconds Double glazing is a great investment for keeping your home warm, reducing noise, and improving security. However, like any part of your property, it can develop issues over time. If your double glazed windows and doors are not functioning properly, don’t worry! Follow these seven essential tips to ensure a smooth and stress-free repair process. Tip 1 – Identify the Problem Early Common double glazing issues include: Condensation inside the glass This means the seal is broken, requiring double glazed glass replacement. Draughty windows Often caused by worn-out seals or faulty window hinges. Stiff or broken locks Your window locks might need replacement to maintain security. The earlier you spot these issues, the easier and cheaper they are to fix. Tip 2 – Check for Warranty and Guarantees Before paying for repairs, check if your double glazing is still under warranty. At Window Fixers, we offer a 5-year guarantee on glass replacements and a 1-year guarantee on all other repairs, ensuring peace of mind. Tip 3 – Avoid DIY Fixes for Complex Repairs While minor issues like cleaning the seals can be done yourself, attempting to fix broken hinges, locks, or misted glass without proper tools can lead to more damage. Instead, trust professional uPVC window repair experts to do the job correctly. Tip 4 – Choose the Right Repair Service Not all repair services are the same. Look for a company that offers: ✔ No Fix, No Fee Guarantee ✔ Fast Response & No Call-Out Charge ✔ Expertise in uPVC & Aluminium Repairs At Window Fixers, we provide affordable double glazing repairs in London & Kent, ensuring top-quality service. Tip 5 – Fix Misted or Foggy Glass Promptly If your windows have condensation between the panes, the seal is broken. Delaying repairs can lead to heat loss and increased energy bills. We offer double glazed glass replacement from £220* per square meter to restore your home’s insulation. Tip 6 – Check Your Door and Window Alignment Misaligned uPVC doors and double glazed windows can cause difficulty in opening and closing. If your door is sticking or your window won’t shut properly, it may need hinge or lock realignment. A professional adjustment can save you from costly replacements. Tip 7 – Get a Free Quote from Window Repair Experts Instead of guessing the cost of repairs, get a professional assessment. Window Fixers offers a free online quote, and with no fix, no fee guarantee, you can be sure you’re getting the best service. Why Choose Window Fixers for Double Glazing Repairs? ✅ No Fix, No Fee Guarantee ✅ Fast Response & No Call-Out Charge ✅Expertise in uPVC & Aluminium Repairs ✅ 5-Year Guarantee on Glass Replacement ✅ 1-Year Guarantee on All Other Repairs Need Fast & Reliable Window Repairs? Contact Us Today! Send us a quick photo or video of your window via WhatsApp or Email, or give us a call to speak directly with one of our experts. WhatsApp Share a photo/video Call 0208 064 1844 9am to 5pm Email [email protected] Related Topics View all The Ultimate Guide to Maintain your Windows Window Condensation Common Issues with uPVC Windows Windows Maintenance Guide 2025 Window Condensation causes and preventions Common issues with uPVC Windows
Window Condensation: Causes, Prevention, and Solutions
No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts Excellent 100% customer satisfaction No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts Excellent 100% customer satisfaction No Call-Out Fee Winter offer no call out charge* Fast Response Free quote within minutes.. Work Guarantee 1-5 years workmanship and parts GET 20% OFF ON WINDOW REPAIRS: BULK DISCOUNT No fix no fee guarantee Days Hours Minutes Seconds Condensation on windows is a common issue in many homes, especially during colder months. It occurs when warm, moist air inside the house comes into contact with a cold window surface, causing the moisture in the air to condense into water droplets. While window condensation might seem like a minor inconvenience, persistent moisture can lead to mould growth, damp issues, and even damage to window frames and walls. It can also indicate underlying ventilation or insulation problems in your home. In this blog, we’ll explore why condensation forms, how to prevent it, and what solutions are available to keep your windows dry and your home comfortable. Window Condensation & Blown Double GlazingWhat’s the Difference? Many homeowners confuse standard window condensation with blown double glazing, but they are two different issues with different causes and solutions. Window Condensation(External or Internal) This happens when warm, humid air meets a cold glass surface, forming water droplets on the window. It can occur inside your home (on the room-facing side of the glass) or outside (on the outer pane). This is typically caused by high humidity levels and poor ventilation, and it can often be reduced with better airflow and moisture control. Blown Double Glazing(Condensation Between the Panes) If condensation appears inside the double glazed glass unit, between the two glass panes, this means the glass seal has failed. A blown unit loses its insulating gas, reducing energy efficiency and making the window less effective at keeping your home warm. The only permanent solution for blown double glazing is a double glazed glass pane replacement, as the seal cannot be repaired. We specialise in blown double glazed glass replacement to restore your window’s insulation and prevent further heat loss. If you have blown windows, get in touch with us and get a free quote in minutes. What Causes Window Condensation? Condensation is a result of temperature differences and excess moisture in the air. Here are some of the main causes: 1. High Indoor Humidity. Everyday activities generate moisture in the air. Common sources include: Cooking (boiling water, steaming food) Showering or bathing Drying clothes indoors Breathing (a family of four can produce several litres of moisture daily!) When this moisture has nowhere to escape, it builds up, leading to condensation on colder surfaces like windows. 2. Poor Ventilation Homes with inadequate airflow trap humid air inside. This is especially common in modern houses with well-sealed windows and doors, where air exchange is minimal. Without proper ventilation, moisture accumulates, increasing the likelihood of condensation. 3. Cold External Temperatures During winter, window glass is much colder than the warm indoor air. When the moist indoor air touches the cold surface, it rapidly cools down, causing condensation. This is why condensation is more noticeable on windows in the colder months. 4. Inefficient or Damaged Double Glazing Double glazed windows are designed to provide insulation, reducing the difference between indoor and outdoor temperatures. However, if the seal between the glass panes fails, the insulating gas escapes, reducing efficiency and allowing condensation to form inside the glass unit. This is a sign that the window unit has failed and needs replacing. Window Condensation Health risks! Condensation isn’t directly harmful, but it creates damp conditions that encourage mould and mildew growth. Mould spores can worsen respiratory issues, trigger allergies, and pose health risks, especially for those with asthma or breathing problems. According to the NHS website, moulds produce allergens and toxic substances that when inhaled or touched can cause “allergic reaction, such as sneezing, a runny nose, red eyes and skin rash. “Moulds can also cause asthma attacks.” How to Prevent Window Condensation? If condensation is already occurring, here’s what you can do: For Internal Condensation (Inside the Home): Improve Ventilation Increase airflow throughout your home by opening windows or using exhaust fans in areas where moisture tends to accumulate, such as kitchens, bathrooms, and laundry rooms. Use ceiling fans to circulate air, which helps prevent moisture buildup by promoting evaporation. Use Dehumidifiers Install and use a dehumidifier to remove excess moisture from the air, especially in areas with high humidity levels or where condensation is a recurring issue. Place dehumidifiers strategically in problem areas to target specific areas of moisture buildup. Monitor Indoor Humidity Invest in a hygrometer to monitor indoor humidity levels regularly. Aim to maintain indoor humidity levels between 30% and 50% to minimize condensation while avoiding excessively dry conditions. Adjust your heating, ventilation, and air conditioning (HVAC) system settings to regulate indoor humidity levels as needed. Seal Windows and Doors Check for and repair any gaps, cracks, or leaks around windows and doors that may allow warm, moist air to enter your home from the outside. Apply weather stripping or caulking as necessary to improve the sealing of windows and doors and prevent air infiltration. Insulate Windows Upgrade to double-pane or triple-pane windows, which provide better insulation and help maintain warmer interior glass surfaces, reducing the likelihood of condensation. Consider installing storm windows or adding window insulation film to improve energy efficiency and reduce heat transfer. Use Insulating Window Treatments Install thermal curtains, cellular shades, or window quilts to add an additional layer of insulation and reduce heat loss through windows, which can help prevent condensation by maintaining warmer window surfaces. Increase Surface Temperature Use radiant heaters or other localised heating sources near windows to increase the surface temperature of the glass, reducing the temperature differential between the indoor air and the window surface and minimising