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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

Fast, Reliable & Affordable UPVC Window Lock Repair

UPVC window lock repair done fast and hassle-free! Restore security to your home with expert repairs—no fix, no fee, and no call-out charge and a 1 Year guarantee.

Same-day repairs available!

Book your repair today!

Note: We don’t offer repairs for wooden windows & doors!

Speak with an expert

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Signs You Need a UPVC Window Lock Repair

Handle Turns But Lock Doesn’t Engage

Indicates an internal fault with the locking mechanism.

The lock is jammed or stiff

Making it difficult to turn the key or operate the handle

Faulty Window Locks

The key doesn’t go in or turn, often due to faulty handles

Window Won’t Close Properly

Lock doesn’t align, preventing the window from shutting securely.

Window Can Be Opened Even When Locked

A serious security issue caused by a faulty lock or broken gearbox.

Broken or Snapped Locking Mechanism

Internal components have failed, making the lock non-functional.

winter offer

Save 20% on 3 or more

Enjoy 20% off when you replace 3 or more double glaze glass units with us

Days
Hours
Minutes
Seconds

Offer only valid for UPVC casement windows*

Discover how much your window lock repair will cost

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Experience
15 Y+
Happy Customers
90 %
Locks Replaced
0 k+
Response Time
5 Mins

Why choose our window lock replacement service?

At Window Fixers, we make window lock replacement simple and stress-free. Our expert team specialises in uPVC and aluminium window locks, fixing faulty mechanisms to restore your home’s security. For just £145 per window, including parts and labour, you’ll get reliable, high-quality repairs with no hidden fees. Plus, with our no fix, no fee guarantee, 1-year warranty, and no call-out charge, you can trust us for fast, hassle-free service. Contact us today for professional, affordable repairs!

Expert repairs

Our skilled technicians specialise in replacing faulty internal locking mechanisms for uPVC and aluminium windows.

No fix, no fee guarantee

We stand by our work. If we can’t fix the issue, you won’t be charged.

No call-out charge

Unlike some companies, we never charge for coming to assess your window issues.

Peace of mind

All our repairs come with a 1-year guarantee, giving you confidence in the quality of our work.

Book Your UPVC Window Lock Repair Today!

Don’t let a faulty window lock put your home at risk. Get it fixed fast with Window Fixers, London’s trusted UPVC window repair specialists.

A technician explaining the No Fix No Fee policy to a homeowner before starting repairs.
A close-up of a technician tightening a hinge, with a badge indicating a 1-year repair guarantee.
A repaired uPVC window with a seal indicating a 1-year guarantee from Window Fixers.
A technician inspecting a uPVC window with a confident smile, ensuring quality service.

FAQs

We specialise in uPVC and aluminium window locks, including multi-point locks, standard mechanisms, and high-security options.

Signs like a stiff handle, jammed lock, or difficulty turning the key usually mean your lock needs attention. A damaged or non-working mechanism is a clear sign it’s time for a replacement.

Absolutely! Our team can replace faulty or broken mechanisms with high-quality parts to restore your window’s security.

Avoid forcing it, as this could cause more damage. Contact us, and our technicians will safely repair or replace the lock for you.

We aim to provide fast service and can often repair or replace your lock on the same day or within 24 hours, depending on availability.

Yes, we provide fast-response local window repair services in London, including emergency window lock repairs. If you’re dealing with a broken window lock or need immediate help to replace window locks, we’re here to assist quickly and efficiently.

We offer our window lock replacement services across London and nearby areas, ensuring a quick response wherever you are.

Yes, all our window lock repairs and replacements come with a 1-year warranty for your peace of mind.

We charge a flat rate of ÂŁ145.00 per window, which includes parts, labour, and VAT. There are no hidden fees, and the price covers everything.

Price is based on standard uPVC casement window**

Aluminium windows and more complicated repairs may cost more**

We provide reliable, affordable service with no call-out charge and a no fix, no fee guarantee. Plus, our skilled technicians ensure your windows are secure and functional in no time.

Need help with your window lock?

Call us at 0208 0641 844, email [email protected], or WhatsApp a picture of your window for quick response.