Dome rooflights in Greater London: the essentials
Dome rooflights in Greater London means polycarbonate and acrylic domes for flat roofs, new or replacement. Every quote follows a survey of the roof and the room below.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. Many London roofs are reached only through the house or over neighbouring property, so lifting heavy glass is planned at survey rather than on the day.
Towns in Greater London
Options we can specify
- Fall-through protection mesh
- Twin, triple or quad skin
- Clear, opal or tinted
- Insulated PVC or GRP upstands
- Fixed or hinged with vent
- Fixed, hinged or vented options
- Quick replacement on existing upstands
Planning and building rules in England
For non-domestic buildings, planning depends on the building and its location; building regulations cover thermal performance and the fire classification of rooflights near boundaries. We confirm the route for your building before ordering.
For buildings other than dwellings, Approved Document L Volume 2 sets limiting U-values of 2.2 W/m²K for rooflights and 3.0 W/m²K for roof ventilators, including smoke vents. Fire classification of rooflight materials near boundaries is checked at specification.
Guide prices
Guide prices for dome rooflights in Greater London are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Dome and new insulated upstand | £955 – £1,675 | £795 – £1,395 |
| Hinged or vented dome Typical | £715 – £1,195 | £595 – £995 |
| Replacement fixed dome | £475 – £835 | £395 – £695 |
How the job runs
- Tell us about the roof. Send the postcode, rough sizes and a photo or two through the form, WhatsApp or the guide-price tool.
- Free survey. For new installations a surveyor measures the opening, checks the roof build-up and talks through glass and options.
- Fixed written quote. You get the product, the work and the price in writing. Nothing is ordered or paid for until you agree.
- Fitting and handover. We fit, seal and make good, then hand over product data, warranties and any certificate paperwork.
Dome rooflights in nearby areas
Common questions
Are domes safe to walk on?
No. Treat any rooflight as fragile unless it is specifically certified non-fragile, and never stand on it.
Can domes open?
Hinged and vented domes are available, manual or electric.
Should I replace a dome or switch to glass?
A dome is cheaper and quick; glass gives a clear view and better performance. On a tight budget, or a commercial roof with many units, domes remain sensible.
Can you replace just the dome?
Yes, if the upstand is sound and the size matches. Otherwise we replace both.
Do I need to be at home for the survey in Greater London?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
