Door won’t lock, close or open properly? We’ll find the fault and repair what’s actually needed. From dropped and misaligned doors to broken locks, handles, hinges and failed multipoint mechanisms, Window Fixers provides professional uPVC door repairs across London without unnecessarily replacing the complete door.
A faulty uPVC door doesn’t necessarily need replacing. Problems with locking, closing, handles, hinges and alignmentcan often be traced to individual components that can be adjusted or replaced.
From £220
From £220
From £220
From £220
From £220
From £220
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Please note: We do not offer repairs for timber windows and doors, Single glazing, Secondary glazing, Velux windows and old aluminium sliding doors.
We'll identify the most common issues and provide a fixed quotation before we visit.
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We'll identify the most common issues and provide a fixed quotation before we visit.
Send a photo or video
Talk to an expert
Send your enquiries
No Hidden Charges
Same Day Availability*
Work Guaranteed
Google Reviews
Please note: We do not offer repairs for timber windows and doors, Single glazing, Secondary glazing, Velux windows and old aluminium sliding doors.
Local experts near you
On all repair work
Years of experience
5 - Star rated service
A uPVC door that becomes difficult to lock, stiff to close or starts catching against the frame doesn’t automatically need a complete replacement.
Over time, a door can drop slightly out of alignment due to its weight, repeated use or wear in the hinges. When this happens, the locking points may no longer line up correctly with the keeps in the frame. Continuing to force the handle can place additional strain on the multipoint locking mechanism or gearbox, eventually causing components to fail.
Other common causes include worn handles, damaged cylinders, faulty hinges, failed locking mechanisms and incorrect compression against the door seals.
Window Fixers diagnoses the cause of the problem before replacing parts. Where possible, we’ll adjust and realign the existing door. If a component has failed, we’ll replace only what’s required, helping restore smooth operation, security and weather resistance without the expense of replacing the complete door.
For faulty, damaged or difficult door locks
For faulty, damaged or difficult door locks
For faulty, damaged or difficult door locks
For faulty, damaged or difficult door locks
For faulty, damaged or difficult door locks
AUTUMN SPECIAL
Save 20% on 3+ Glass Replacements
Window Fixers specialises in repairing faulty double glazed uPVC doors across London. Our repair-first approach means we diagnose the actual problem and replace only what’s needed wherever a safe, reliable repair is possible.
Many locking and alignment problems can be repaired without installing an entirely new door.
Our replacement parts and workmanship are backed by our repair guarantee.
We'll explain the fault and agree the repair price before carrying out the work.
If we can't successfully complete the agreed repair, you won't pay for a repair we haven't carried out.
Our technicians carry commonly used door locks, handles, hardware and repair components.
We diagnose locks, mechanisms, hinges, handles and alignment problems rather than automatically recommending replacement doors.
We make uPVC door repairs, simple, fast and hassle free. Clear answers, fixed prices and expert replacement, all with zero surprises.
Send us a Photo/Video
Send us photos and preferably a short video showing exactly what your uPVC door is doing. We’ll assess the likely fault and provide initial pricing.
Expert installation, minimum fuss
Our technician inspects the door, confirms the fault and carries out the agreed repair using the appropriate replacement parts or adjustments.
Clear views & total peace of mind
We’ll test the door’s opening, closing and locking operation before completing the job.Smooth operation. Secure locking. Peace of mind.
Replacement door hardware, parts and workmanship are covered by our 1-year repair guarantee, giving you added confidence after the repair. No Fix, No Fee. We believe you should pay for a successful repair, not simply for someone to turn up.
Misted or blown double glazing doesn't usually mean you need a whole new window. Where the frame is serviceable, we replace only the failed sealed glass unit saving money, reducing disruption and restoring a crystal-clear view.
Window Fixers specialises in misted and blown double glazing replacement across London. If condensation is trapped between the panes, we’ll replace the failed sealed unit with new made-to-measure glass while keeping your existing frame wherever possible. From uPVC windows and French doors to patio doors, bifolds and conservatories, we provide a professional glass-only replacement backed by our 10-year anti-fog guarantee.
Get clear answers about uPVC door repairs, misalignment, multi-point locking mechanism replacement costs, lead times and our 1 year repair guarantee.
Many uPVC door faults involve individual components such as the locking mechanism, gearbox, handle, cylinder, hinges or alignment. Where the door itself remains serviceable, repairing the faulty component can avoid unnecessary complete door replacement.
Common causes include door misalignment, a dropped door, incorrectly aligned lock keeps, a faulty gearbox or a damaged multipoint locking mechanism. The correct repair depends on identifying which part is causing the problem.
A door can gradually move out of alignment, placing additional pressure on the locking points. Continuing to force a stiff handle may increase strain on the mechanism, so it’s worth having the cause investigated.
The problem may be within the multipoint locking mechanism or gearbox, although alignment should also be checked before assuming a component needs replacing.
Depending on the cause, a jammed door may be recoverable and the failed locking components repaired or replaced. The exact solution depends on the mechanism and how it has failed.
Often, yes. Door alignment and hinges can be assessed and adjusted where appropriate. Worn or damaged hinges may require replacement.
The door may have dropped or moved out of alignment. Hinge wear and adjustment can also affect how the door sits within the frame.
Yes. Failed gearboxes and multipoint locking mechanisms can often be replaced without replacing the complete door, subject to the existing system and availability of compatible parts.
Yes. We can replace faulty handles, but we also check whether resistance from the locking mechanism or poor alignment contributed to the handle problem.
Yes. We repair many uPVC French door faults including locking, alignment, handles, hinges and mechanisms.
We repair a range of uPVC patio door hardware and operational problems, depending on the door system and availability of compatible components.
Draughts can result from poor alignment, insufficient compression against the seals or worn sealing components. The door should be inspected to determine the cause.
No. If the locking points aren’t aligning correctly, repeatedly forcing the handle can put unnecessary pressure on the mechanism and potentially worsen the fault.
Send us photos and ideally a short video showing the door and the problem. This helps us assess the likely fault and provide initial pricing before arranging a visit.
No. Our uPVC door repair service is offered with no call-out charge.
Eligible replacement parts and workmanship are backed by our 1-year repair guarantee.
See how our professional uPVC window repairs restore damaged windows without the cost of full replacements. Every project includes real customer photos, the repair completed and the final price paid.
Four double glazed glass units supply & fit in Ilford, London. Total cost £528 all in
Two blown glass units supply & fit in uPVC window first floor in North London, £440 inc VAT
uPVC patio door middle glass supplied and fitted in West London. £599 inc VAT
Aluminium bifold middle glass replacement in London. £599 inc VAT
21 double glazed glass replacements in uPVC conservatory in SW. £4550 inc VAT
uPVC French door both glass replaced in south east London. £600 in VAT
Looking for uPVC door repair near me? Window Fixers provides professional uPVC door lock, mechanism, handle, hinge and alignment repairs throughout North, East, South, West and Central London.
Looking for misted window repair near me or a reliable company to replace blown double glazing in London? Our engineers cover homes and commercial properties throughout London.
Our coverage includes areas across Redbridge, Romford, Ilford, Barking & Dagenham, Havering, Waltham Forest, Newham, Enfield, Barnet, Hackney, Haringey, Islington, Camden, Greenwich, Lewisham, Southwark, Lambeth, Croydon, Bromley, Wandsworth, Ealing, Hounslow, Richmond, Harrow and surrounding London areas.
Not sure if you're within our service area?
Whether your uPVC door won't lock, won't close, has dropped or has a failed locking mechanism, send us a photo or video and we'll let you know how we can help.
See why homeowners across London choose Window Fixers for professional misted double glazing replacement, clear pricing and results they’re happy to recommend.
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