Double Glazing Repair

We can quickly repair or replace Double Glazing on wood, uPVC or aluminium frames.

Double Glazing Repairs

Double Glazing

Double glazing repair experts available 24 hours every day if your windows are broken.


Window Glazing

Window glazing specialists with a vast experience in all types of glass architecture.


Glass Replacement

Glass replacement panels can be measured and fitted quickly with insurance backed guarantee.


35 years Double Glazing Repair Experience

Providing the best quality Double Glazing Repair

We've been repairing wood and uPVC windows for over 35 years with our high quality window repair service. At some point bifold, uPVC and wood Double Glazing Repair could fail. This can be due to wear, alignment problems or mechanical defect. It doesn’t matter how old your window is or what make it is, we know what type of hinge has been fitted and carry stock with us at all times.

In addition to our double glazing repair service, we can replace locks on your doors with new anti-snap high security locks. We offer a 24 hour, 7 days a week service and will respond to your call as quickly as possible to restore your window to it’s full security.

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Services for common double glazing faults

Stress Cracks

These occur after repeated sudden temperature increases and gradually becomes larger after it starts off as a hardly noticeable issue.

Impact Cracks

Cracks in a starburst pattern that radiates from a central point. Hitting a window with a large stone or ball could result in an impact crack.

Window Stuck

Wood windows sometime stick when they have taken on moisture through bared paintwork or a debris build up so the moisture cannot escape.

Pressure Cracks

Pressure cracks are most common in double glazing window panels when there is a large change in air pressure from the outside to the inside which doesn't happen often in the UK.


As water condenses at the bottom of the window, it could leak into the window surround which forms a pubble under the glass. This seeps in between the glass panes that mists the glass.

Misted Windows

Misted windows often appear most misted from Spring to Summer as the moisture in the air dries but is trapped within the panes of the double glazing which will need replacing.

Our Achievements
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Meet Our Team

Testimonials From
Happy Clients


I rang SheffLOCK minutes before they were due to close, to enquire if they had a particular style of opaque glass for my bathroom window. The piece I required was 35 x 25cm, so of minimal cost. They suggested that I send a photo. Within minutes he rang back and confirmed that they had the design in stock. I called in for the double glazing the following afternoon, which was quickly cut to size. The total cost of the transaction was very good with 100% customer service! Thank you SheffLOCK, I will definitely recommend your services :-)

Mark Savage
Home Owner

I have been very pleased with my Double Glazing Repair. I had a stained glass panel manufactured and was amazed with the finished article. Excellent quality, now has pride of place as a feature in my lounge 👍Staff were incredibly helpful throughout. Many thanks. I certainly recommend SheffLOCK Double Glazing Repairs. Their products are good, they respond to email communications immediately, and they are obviously committed to achieving excellent customer satisfaction.

Robert Hart
Home Owner

Double Glazing Repair Contacted SheffLOCK to repair a double glazing window frame. Fitted the work in for the following day, arrived early and fixed in no time, happy to recommend, will be using again

Louise Moor
Home Owner

Really quick turnaround on the Double Glazing Repair with good prices and friendly service. I wouldn’t go anywhere else for double glazing units. Great service, very polite staff and dealt with my window repairs quickly. Would recommend to family and friends.

George Remet
Business Owner

Used SheffLOCK for many years and always been very polite and professional. My latest job of patio door windows went very smoothly and could be happier with the results. Highly satisfied with the double glazing service and price for laminated glass from SheffLOCK. Thank you so much.

Terry Underwood
Home Owner

My old stained glass double glazed window has been copied and fitted all within two weeks which looks wonderful. Friendly, efficient service. I would highly recommend this company. The quote for a broken window arrived the next day and the turnaround was pretty fast. Final price was a good estimate. Fitters were friendly and professional and had the broken pane replaced quickly and they took the damaged glass away too.

Diane Moody
Home Owner

Used SheffLOCK about 4 times in the last year as my business had been repeatedly broken into. On the last occasion I went for laminated glass. The team fitted the large glass panels into the frames and cleaned up quiickly after themselves. Feels much safer and no more broken glass panels.

David Bartholenew
Business Owner

So pleased with our new double glazed window, which was beautifully installed at a very competitive price. The old window was draughty and badly in need of replacing but in an awkward position so other firms had declined the job. SheffLOCK came to the rescue, were cheerful and professional in all our conversations, and did the job in a few hours with minimum fuss. Highly recommended.

George Remet
Business Owner

Proud Member of
Great Associations

Contact Us

Call us from 9am to 5pm from Monday to Friday for an appointment. Your appointment will be a working day between working hours. The number also acts as our emergency call number if you are locked out or cannot secure your property. We are all based around South Yorkshire so you will be guaranteed an emergency response in one hour.

+44 114 442 6200

Unit 6, Niagara Works, Niagara Road
Sheffield S6 1LU, South Yorkshire