How we approach dome rooflights in Carshalton
For Carshalton homes and buildings we offer dome rooflights: polycarbonate and acrylic domes for flat roofs, new or replacement. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
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 Carshalton, as anywhere, dome rooflights are the usual choice for schools, flats and commercial flat roofs.
Neighbouring towns include Wallington (1 km) and Sutton (1 km). We offer a survey date when we reply to your enquiry.
What you can choose
- Polycarbonate or acrylic
- Fall-through protection mesh
- Clear, opal or tinted
- Insulated PVC or GRP upstands
- Twin, triple or quad skin
- Low cost per unit
- Fixed, hinged or vented options
What to check first
- Fire classification matters on some roofs
- Upstand condition decides whether you replace dome only or the whole unit
Regulations for dome rooflights in Carshalton
On commercial roofs the main questions are usually building control, fire classification of rooflight materials and safe access rather than householder permitted development. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
Dome rooflights prices in Carshalton
These are typical supply-and-fit ranges. For an address in Carshalton, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| 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.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Dome rooflights near Carshalton
Other services in Carshalton
Common questions
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 domes leak?
Leaks are usually at the upstand seal or the membrane. Replacing the dome and resealing often fixes it.
Are domes safe to walk on?
No. Treat any rooflight as fragile unless it is specifically certified non-fragile, and never stand on it.
How do I book a survey in Carshalton?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Do you fit dome rooflights in Carshalton?
Yes. We survey and fit dome rooflights in Carshalton and across Greater London. Send your postcode and we will offer a survey date when we reply.
