What do dome rooflights in Harrow involve?
Our dome rooflights service in Harrow covers polycarbonate and acrylic domes for flat roofs, new or replacement. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. In Harrow, as anywhere, dome rooflights are the usual choice for schools, flats and commercial flat roofs.
We work across Greater London, including Harrow, and in neighbouring towns such as Wembley and Northolt. Access, parking and how the glass reaches the roof are all checked at the survey.
Choices for your Harrow project
- Twin, triple or quad skin
- Polycarbonate or acrylic
- Fall-through protection mesh
- Insulated PVC or GRP upstands
- Fixed or hinged with vent
- Quick replacement on existing upstands
- Low cost per unit
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 Harrow
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.
Guide prices for Harrow
These are typical supply-and-fit ranges. For an address in Harrow, 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 |
What happens next
- Tell us what you have. Send the HA2 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Harrow, measures and checks structure and access.
- 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.
Nearby towns
Other services in Harrow
Dome rooflights in Harrow: 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.
Can domes open?
Hinged and vented domes are available, manual or electric.
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 Harrow?
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 Harrow?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
