How we approach dome rooflights in Northolt
We handle dome rooflights across Greater London, including Northolt. 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.
London homes often run deep from front to back, so the middle of the ground floor is the darkest space — exactly where an overhead rooflight earns its keep. Dome rooflights suit schools, flats and commercial flat roofs.
We work across Greater London, including Northolt, and in neighbouring towns such as Greenford and Harrow. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Northolt
- Insulated PVC or GRP upstands
- Polycarbonate or acrylic
- Twin, triple or quad skin
- Clear, opal or tinted
- Fall-through protection mesh
- Smoke-vent versions available
- Suits schools, flats and commercial roofs
What to check first
- Old domes may be fragile — treat as fragile until checked
- Fire classification matters on some roofs
Regulations for dome rooflights in Northolt
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. Fragile-roof safety and access are planned before work starts.
Read the planning permission guide before you commit to a design.
What do dome rooflights cost in Northolt?
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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Northolt address.
- 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.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Dome rooflights near Northolt
Related work in Northolt
Questions about dome rooflights in Northolt
Can you replace just the dome?
Yes, if the upstand is sound and the size matches. Otherwise we replace both.
Can domes open?
Hinged and vented domes are available, manual or electric.
Why has my dome gone yellow?
UV breaks down older plastics over time. Modern domes have UV-protective layers, but all plastics age.
Do I need to be at home for the survey in Northolt?
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 Northolt?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
