Why Choose National Glass?

Established in 1986, National Glass are one of the leading windows, doors and glazing installation companies in the UK. With over 32 years of experience in both domestic and commercial projects, you can rely on us to deliver outstanding customer service and expert technicians.

We at National Glass can help you with misted or steamed windows, as well as full window replacements. We can replace the glass and properly seal the panes of glass and units to ensure that the problem is resolved.

Free home visits and quotations

We offer free home visits and quotations with no obligation to buy

10 year guarantee

All our windows and doors come with a 10 year guarantee

Over 30 years experience

We have installed 1000's of windows and doors over the years

Highly trained friendly staff

All our staff are highly trained with years of experience

Save up to 90%

We can fit brand new double glazed units into your existing frames


We are not driven by sales targets, instead we offer fair pricing for all our customers.

Chat to one of our lovely staff for advice or request a free quote

We are open 7 days a week from 9am to 4:30pm.

Conservatory windows and doors

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Replacement Doors

National Glass can supply and fit all types of doors including Residential doors, Patio doors, French doors, Composite doors and Stable doors.


Steamed Up Glass Replacement

If the glass in your current PVC windows has began to mist we can replace the glass only, saving you up to 90%


Replacement Windows

Our windows and double glazing can improve the warmth and security of your property, whilst looking modern with a visually appealing finish. Whether its uPVC, Sash, Bay, Bespoke, Coloured, Tilt and turn.

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