How we approach dome rooflights in Lewisham
We handle dome rooflights across Greater London, including Lewisham. In short: polycarbonate and acrylic domes for flat roofs, new or replacement. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Party walls are a fact of life in London terraces, and rooflights close to a shared wall need detailing that keeps the neighbour's side dry too. In Lewisham, as anywhere, dome rooflights are the usual choice for older flat roofs with yellowed or leaking domes.
Neighbouring towns include Catford (2 km) and Peckham (3 km). We offer a survey date when we reply to your enquiry.
What you can choose
- Fixed or hinged with vent
- Clear, opal or tinted
- Polycarbonate or acrylic
- Fall-through protection mesh
- Twin, triple or quad skin
- Quick replacement on existing upstands
- Light, impact-resistant domes
Things we check at survey
- Fire classification matters on some roofs
- Plastic domes have a lower acoustic and thermal performance than glass
Regulations for dome rooflights in Lewisham
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. Fragile-roof safety and access are planned before work starts.
Our planning guide covers each nation in more detail.
Dome rooflights prices in Lewisham
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| 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 |
The process, step by step
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Lewisham, measures and checks structure and access.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Dome rooflights near Lewisham
Other services in Lewisham
Dome rooflights in Lewisham: 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.
Why has my dome gone yellow?
UV breaks down older plastics over time. Modern domes have UV-protective layers, but all plastics age.
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.
Do I need to be at home for the survey in Lewisham?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Can you work alongside my builder in Lewisham?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
