Double glazing installers in London – Page 85

The window specialists are a London based company, offering top quality wood sash window repairs & replacement, wood casement window repairs & replacement, double glazing and much more....

Windows & Doors

Request quote View profile

The Sash Window Company

◆ London · SE25 5AH

We design and manufacture bespoke timber sash windows to help retain the architectural character and integrity of your home, incorporating sound and draught proofing.

Timber & Joinery Windows & Doors

Request quote View profile

Chelsea Glass Ltd

◆ London · SW8 3DH

The glass and mirror specialist

Glass & Mirror

Request quote View profile

Our specialist team of experts have been installing double glazing in Berkshire since 1997. We specialise in the supply and installation of top quality uPVC windows, uPVC and composite doors as well as uPVC conservatories. Choose from a range of other products including uPVC roofline accessories and decking through the number one company for double glazing.

Glass & Mirror Windows & Doors

Request quote View profile

Tag Glazing Ltd

◆ London · NW2 2QH

TAG Glazing London offers Emergency Glazing, Double Glazing, Mirrors, Replacement Window Locks, Replacement window keys in London.

Glass & Mirror

Request quote View profile

Timber Windows of Hampstead & Highgate

◆ London · N6 5AA

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

Request quote View profile

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.