How we approach dome rooflights in Clapham
Dome rooflights in Clapham means polycarbonate and acrylic domes for flat roofs, new or replacement. We cover the SW4 district and the rest of Greater London, with a survey before any price is fixed.
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 Clapham, as anywhere, dome rooflights are the usual choice for older flat roofs with yellowed or leaking domes.
Jobs in Clapham are planned around access: whether the roof can be reached from the garden, whether a hoist or crane is needed, and where we can park. We check this when we measure.
Specification options
- Fixed or hinged with vent
- Insulated PVC or GRP upstands
- Fall-through protection mesh
- Polycarbonate or acrylic
- Clear, opal or tinted
- Low cost per unit
- Quick replacement on existing upstands
Before you order: points to check
- Old domes may be fragile — treat as fragile until checked
- Fire classification matters on some roofs
Rules and responsibilities in Clapham
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. Product data for building control is supplied with every quote.
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.
Read the planning permission guide before you commit to a design.
Dome rooflights prices in Clapham
Prices below are shown including and excluding VAT. In Clapham, as elsewhere, making good inside and access equipment are the main variables.
| 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 |
From enquiry to finished job
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Clapham address.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
More we do in Clapham
Common questions
Can you replace just the dome?
Yes, if the upstand is sound and the size matches. Otherwise we replace both.
Do domes leak?
Leaks are usually at the upstand seal or the membrane. Replacing the dome and resealing often fixes it.
Why has my dome gone yellow?
UV breaks down older plastics over time. Modern domes have UV-protective layers, but all plastics age.
Do you fit dome rooflights in Clapham?
Yes. We survey and fit dome rooflights in Clapham and across Greater London. Send your postcode and we will offer a survey date when we reply.
Do I need to be at home for the survey in Clapham?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
