How we approach dome rooflights in Barnet
Thinking about dome rooflights in Barnet? The short answer: polycarbonate and acrylic domes for flat roofs, new or replacement. The longer answer depends on your roof, which is why we survey before we price.
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 older flat roofs with yellowed or leaking domes.
We work across Greater London, including Barnet, and in neighbouring towns such as Potters Bar and Borehamwood. Access, parking and how the glass reaches the roof are all checked at the survey.
Specification options
- Polycarbonate or acrylic
- Clear, opal or tinted
- Fixed or hinged with vent
- Fall-through protection mesh
- Insulated PVC or GRP upstands
- Smoke-vent versions available
- Suits schools, flats and commercial roofs
Things we check at survey
- Old domes may be fragile — treat as fragile until checked
- Fire classification matters on some roofs
Regulations for dome rooflights in Barnet
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.
Our planning guide covers each nation in more detail.
What do dome rooflights cost in Barnet?
These are typical supply-and-fit ranges. For an address in Barnet, 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.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
More we do in Barnet
Common 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.
Can you replace just the dome?
Yes, if the upstand is sound and the size matches. Otherwise we replace both.
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 Barnet?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Do you fit dome rooflights in Barnet?
Yes. We survey and fit dome rooflights in Barnet and across Greater London. Send your postcode and we will offer a survey date when we reply.
