Greater London · England
Glass Roofs in Greater London
A frameless glass roof can turn a dark side return in Greater London into a bright kitchen, and our glaziers assess the supports before you receive a fixed written quote.
- Guide from £1,095 per m²
- 79 towns covered
- Postcode areas BR, CR, DA, E, EC, EN, HA, IG, KT, N, NW, RM, SE, SM, SW, TN, TW, UB, W, WC
Glass roof extension across Greater London
In England, Approved Document L sets a limiting U-value of 2.2 W/m²K for rooflights, calculated in the horizontal position. Frameless glass roofs and fixed rooflights are usually specified with low-E double or triple glazed units, and their declared performance should be checked against this before ordering.
Walk-on glass panels are laminated from several layers of toughened or heat-strengthened glass so the panel stays in place even if one layer breaks. The top layer usually carries an anti-slip finish, such as a fritted or etched pattern, and the panel thickness is calculated for the expected loads.
A new glass roof or walk-on panel is building work that normally needs building regulations approval through building control, covering structure, energy performance and, close to a boundary, fire performance. Planning permission may also be needed depending on the extension and the property, so check with the council.
Overhead glass collects heat in summer. Solar-control coatings, low-E coatings and fritted patterns reduce heat and glare under south and west-facing roofs, while opening rooflights or vents elsewhere help warm air escape. Self-cleaning outer coatings reduce how often the glass needs washing.
Towns we cover for glass roofs in Greater London
Choose your town for local details, nearby areas and the postcode districts we cover.
- Acton
- Barking
- Barnes
- Barnet
- Beckenham
- Becontree
- Bexleyheath
- Blackheath
- Brixton
- Bromley
- Camden
- Carshalton
- Catford
- Chelsea
- Chingford
- Chiswick
- Clapham
- Coulsdon
- Cricklewood
- Croydon
- Dagenham
- Ealing
- Edmonton
- Eltham
- Enfield
- Feltham
- Finchley
- Fulham
- Greenford
- Greenwich
- Hackney
- Hammersmith
- Hampton
- Hanworth
- Harrow
- Hayes
- Heston
- Hornchurch
- Hounslow
- Ilford
- Isleworth
- Islington
- Kensington
- Kingston upon Thames
- Lewisham
- Leytonstone
- Mitcham
- Morden
- Muswell Hill
- New Malden
- Northolt
- Orpington
- Peckham
- Purley
- Putney
- Richmond
- Romford
- Ruislip
- Shepherds Bush
- South Croydon
- Southall
- Stamford Hill
- Stratford
- Streatham
- Surbiton
- Sutton
- Thamesmead
- Tottenham
- Twickenham
- Uxbridge
- Wallington
- Walthamstow
- Wandsworth
- Welling
- Wembley
- Willesden
- Wimbledon
- Wood Green
- Woodford Green
What applies in Greater London
Approved Document K requires safety glass in critical locations in England: glazing in doors and in side panels within 300 mm of a door, up to 1500 mm above floor level, and any glazing in walls or partitions up to 800 mm above floor level.
Replacing windows and doors with similar ones is usually permitted development for houses in England. Flats, listed buildings and homes in conservation areas or covered by an Article 4 direction can need permission, so check with the council first.
Parts of Greater London are within about 15 km of the coast, where exposure to wind and salt air is worth planning for. Glass roofs near the coast collect salt film that self-cleaning coatings may not fully remove, so occasional rinsing helps. Exposed sites face higher wind uplift, which affects glass thickness and fixings, and any metal supports need coatings or grades suited to salt air.
City glass roofs often need cranes or lifting robots, so road or pavement licences, parking suspensions and access over neighbouring property may be needed. Side returns usually sit on a boundary, so fire performance and neighbour matters should be checked early.
Guide prices
| Typical job | Guide price inc VAT |
|---|---|
| Frameless glass roof, per m² | £1,095 – £1,795 |
| Walk-on glass panel, per m² | £1,495 – £2,395 |
Choosing your glass roofs
Walk-on rooflight
A multi-layer laminated glass panel set into a roof terrace or flat roof, with an anti-slip surface for foot traffic.
Glass beams and fins
Laminated glass supporting beams instead of steel, keeping the whole roof transparent where spans and loads allow.
Sliding access rooflight
A glazed hatch that slides or hinges open for access to a roof terrace, with weather seals and secure locking.
Side-return glass roof
Large glass units spanning from the house wall to the boundary, supported on glass beams or slim steel, for extended kitchens.
Glass Roofs in Greater London: questions
Will a glass roof make my kitchen too hot?
A glass roof can make a room warm on sunny days, because overhead glass receives sun for much of the day. Solar-control coatings, fritted patterns, internal blinds and ventilation from opening windows or rooflights help keep temperatures comfortable. The glass is specified at design stage to suit the orientation and how the room is used.
Does a glass roof need building regulations approval?
Yes. A new glass roof, frameless rooflight or walk-on panel is building work that normally needs approval through building control, covering structure, energy performance and fire performance near a boundary. Highly glazed extensions often need energy calculations to show compliance. The rules differ between England, Wales, Scotland and Northern Ireland, and we explain the route for your project.
How is a glass roof installed?
A glass roof is installed onto supports already built and checked, such as walls, steel beams, glass beams or upstands. The glass units are lifted with a crane, glass robot or vacuum lifters, set onto gaskets or setting blocks, fixed and then weather sealed. Most domestic roofs are installed in a day or two once supports are ready.
What guarantee comes with a glass roof?
Manufacturer guarantees apply to the glass units, coatings and any framing or fixings, and the terms are confirmed in writing. Supports built by others are covered by their own builder's terms. Guarantee terms for our installation are set out in writing with your quote, so you know what is covered and who is responsible before work begins.
Which parts of Greater London do you cover for glass roofs?
We cover the whole of Greater London, including Islington, Bexleyheath, Barking, Sutton and Croydon, and postcode areas BR, CR, DA, E, EC, EN, HA, IG, KT, N, NW, RM, SE, SM, SW, TN, TW, UB, W, WC. Building rules for glass roofs here follow the regulations for England. Enter your postcode on the quote form and we will confirm cover; then a glazier will arrange a free survey before giving you a written quote.
Other glazing services in Greater London
- Replacement Glass in Greater London
- Misted Glass Repair in Greater London
- Emergency Glazing in Greater London
- Safety Glass in Greater London
- Window Repairs in Greater London
- Window Film in Greater London
- uPVC Windows in Greater London
- Aluminium Windows in Greater London
- Sash Windows in Greater London
- Composite Doors in Greater London
- Bifold Doors in Greater London
- Sliding Doors in Greater London
- Secondary Glazing in Greater London
- Roof Lanterns in Greater London
- Glass Balustrades in Greater London
- Frameless Glass in Greater London
- Shower Screens in Greater London
- Glass Splashbacks in Greater London
- Bespoke Mirrors in Greater London
- Shopfront Glazing in Greater London
- Curtain Walling in Greater London
- Glass Partitions in Greater London
- Property Glazing in Greater London
All glazing in Greater London · Glass Roofs & Walk-on Glass across the UK
Get a written quote in Greater London
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.