Double glazing installers in London – Page 24

Bespoke Windows Solutions provides aluminium, steel and wood windows and doors, for residential clients in South East London Bromley and Chislehurst locations.

Glass & Mirror Windows & Doors

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Lister Glass

◆ Epsom · W10 6RD

With two retail outlets in Epsom and Kensington, Lister Glass manufactures bespoke glass products and providing glazing repair and replacement throughout Surrey and London.

Glass & Mirror Windows & Doors

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SashLine – Bespoke Timber Windows & Doors London

◆ London · HA7 1GB

Discover the perfect double glazing windows and doors for your home or business. Our comprehensive directory showcases a wide range of products and…

Timber & Joinery Windows & Doors

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London Aluminium Windows & Sliding Doors

◆ London · SW6 2NQ

We are a company that specialises in manufacturing and delivering high-quality aluminium triple-glazed windows and doors to homes throughout the London area & suburbs in a wide range of designs and styles.

Windows & Doors

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Catford Double Glazing

◆ London · SE6 4HW

Discover the perfect double glazing windows and doors for your home or business. Our comprehensive directory showcases a wide range of products and…

Glass & Mirror Windows & Doors

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Glory Glass

◆ London · UB6 9JS

We have total confidence in our products and services. So much so that we offer a guarantee that’s twice the industry average.

Glass & Mirror Windows & Doors

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Double glazing in London: what to know

Replacement windows and doors in England must meet the Building Regulations — a U-value of 1.4 W/m²K or a Window Energy Rating of band B, and no worse than the units they replace. A FENSA- or CERTASS-registered installer can self-certify that compliance and register the work, so you get a certificate without arranging building control separately.

When comparing firms in London, check the accreditations each one holds, make sure quotes are like-for-like on frame material and glass specification, and get at least three before you decide. Every listing here is an independent local business, so your enquiry goes straight to the firm.

Double glazing in London — common questions

How much does double glazing cost in London?

As a rough guide, a replacement uPVC casement window is typically around £400–£650 fitted, and a full-house replacement often falls between £4,000 and £8,000 depending on the number of windows, the glass specification and the frame style. Prices vary between firms, so it is worth comparing at least three quotes from installers in London.

Are double glazing installers in London FENSA registered?

Many are. Replacement windows and doors must meet Building Regulations, and a FENSA- or CERTASS-registered installer can self-certify the work and register it for you — so you receive a compliance certificate without arranging building control separately. Each listing shows the accreditations that firm holds.

Do I need building regulations approval for new windows in London?

Replacement windows must meet the Building Regulations, but you usually do not need a separate building control application — a FENSA- or CERTASS-registered installer self-certifies the work. In England the windows must not exceed a U-value of 1.4 W/m²K (or achieve at least a WER band B) and must be no worse than the ones they replace.

How many double glazing installers are listed in London?

We currently list 913 in London. You can compare them above by the services they offer and the accreditations they hold.

How do I get quotes from installers in London?

Use the quote form on this page — enter your postcode and what you need, and we will pass it to matched local installers. It is free and there is no obligation to proceed.