Expert Repairs for Windows & Doors
Delivering Lasting Solutions for Over 30 Years
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Fixing Glazing Problems, Ensuring Peace of Mind
Specialists in Window Repairs
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Expert Fixes for Every Type of Door
Ensuring Functionality and Security
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Welcome to Lockseal Double Glazing Repairs

We are a double glazing, window and door repair service, based in Brentwood, we cover all of London and Essex.

With years of experience, we are dedicated to resolving double glazing problems for homeowners, landlords & lettings agencies. We understand the frustration when your doors & windows begin to fail and are determined to provide a friendly and efficient service to get you back on track.

All our quotes are free and of course, advice is free too.

Experiencing Door or Window Issues?

Don’t let a faulty door or window disrupt your comfort and security. We provide long-lasting solutions, not quick fixes.

Contact Lockseal today for reliable, expert repairs. Our team is ready to restore functionality with swift and effective solutions.

Windows And Doors We Work With

Expose & Diagnose

We have pretty much seen it all from poor installing to diy disasters, our core belief is to find the root cause of any problem we encounter, this process addresses the real issue allowing the customer to stay problem & worry free.

We understand the building industry has a poor reputation for reliability, we want our customers to trust we are doing everything within their best interest, we will be open and honest about our costing and give as much information about the works carried out as possible.

We also: -
Why Choose LockSeal?

Looking For An Old Lock Or Window Part?

We have an extended network of suppliers to aid us in sourcing the exact part required for your windows and doors, even if your product is very old or even obsolete, our suppliers can give us workaround solutions to resolve your window and door issues.