Dome rooflights for Cambridge: the essentials
For Cambridge 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.
In the East of England, bungalows and chalet bungalows with large flat-roofed extensions are common, and they often suit a long run of rooflights. Dome rooflights suit older flat roofs with yellowed or leaking domes.
From Cambridge to St Ives, Newmarket and Ely, the same survey-first process applies: measure, specify, fix the price, then fit.
Choices for your Cambridge project
- Fall-through protection mesh
- Insulated PVC or GRP upstands
- Polycarbonate or acrylic
- Fixed or hinged with vent
- Twin, triple or quad skin
- Light, impact-resistant domes
- Smoke-vent versions available
Before you order: points to check
- Plastic domes have a lower acoustic and thermal performance than glass
- Upstand condition decides whether you replace dome only or the whole unit
Regulations for dome rooflights in Cambridge
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.
Read the planning permission guide before you commit to a design.
Dome rooflights prices in Cambridge
Guide prices for dome rooflights in Cambridge 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 |
What happens next
- Tell us what you have. Send the CB1 postcode, a rough size and a couple of photos.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- 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.
Dome rooflights near Cambridge
More we do in Cambridge
Questions about dome rooflights in Cambridge
Why has my dome gone yellow?
UV breaks down older plastics over time. Modern domes have UV-protective layers, but all plastics age.
Can domes open?
Hinged and vented domes are available, manual or electric.
Do domes leak?
Leaks are usually at the upstand seal or the membrane. Replacing the dome and resealing often fixes it.
How do I book a survey in Cambridge?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Can you work alongside my builder in Cambridge?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
