913 double glazing installers are listed in London, covering areas like London, Chiswick, South Kensington, Finsbury Park, Muswell Hill and Archway. Between them they cover Timber & Joinery, Windows & Doors, Glass & Mirror and Renovation & Refurb. Every listing is an independent local business — compare their services and accreditations below, then request free, no-obligation quotes from the firms that suit your project.
Oak Sash Company supplies and installs double-glazed timber windows and doors for homeowners and the trade. We supply high quality, factory painted, bespoke products, which are energy efficient, secure, durable and elegant.
Discover the perfect double glazing windows and doors for your home or business. Our comprehensive directory showcases a wide range of products and…
The UK's environmentally friendly builders merchant, supplying beautifully sustainable and low maintenance composite decking, cladding, fencing, flooring and more.
Discover the perfect double glazing windows and doors for your home or business. Our comprehensive directory showcases a wide range of products and…
Premier London glaziers offering domestic and commercial glazing. 24/7 coverage across London, Essex & Surrey. Enquire now!
Discover the perfect double glazing windows and doors for your home or business. Our comprehensive directory showcases a wide range of products and…
Discover the perfect double glazing windows and doors for your home or business. Our comprehensive directory showcases a wide range of products and…
Discover the perfect double glazing windows and doors for your home or business. Our comprehensive directory showcases a wide range of products and…
Discover the perfect double glazing windows and doors for your home or business. Our comprehensive directory showcases a wide range of products and…
Discover the perfect double glazing windows and doors for your home or business. Our comprehensive directory showcases a wide range of products and…
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.
