Skylight installation for Greenford: the essentials
Thinking about skylight installation in Greenford? The short answer: survey, supply and fit — new openings, extensions and fit-only work. The longer answer depends on your roof, which is why we survey before we price.
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. Think of skylight installation for new extensions, new openings and fit-only jobs.
Greenford sits about 2 km from Northolt and 2 km from Southall, and we cover the whole UB6 postcode district and the roads in between.
Choices for your Greenford project
- Internal plaster reveal
- Fit only (customer-supplied units)
- Electrics coordination
- New openings with joist trimming
- Upstands and flashings
- Making good inside included
- New openings in existing roofs
What to check first
- Fit-only work relies on the product being suitable and complete
- Building Regulations approval (a building warrant in Scotland) may be needed
Planning, building control and Greenford
In England a rooflight on a house is usually permitted development under Class C if it projects no more than 150 mm beyond the roof slope and sits no higher than the ridge. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. In an extension, glazing including rooflights is normally limited to 25% of the new floor area plus any windows or doors the extension covers, unless a whole-house calculation shows otherwise.
Our planning guide covers each nation in more detail.
What does skylight installation cost in Greenford?
Guide prices for skylight installation in Greenford 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 |
|---|---|---|
| New opening in an existing roof, supply and fit | £2,395 – £5,395 | £1,995 – £4,495 |
| Supply and fit into a new extension Typical | £1,435 – £3,595 | £1,195 – £2,995 |
| Fit only, customer-supplied unit | £595 – £1,195 | £495 – £995 |
How the job runs
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Greenford, 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.
Neighbouring towns
Related work in Greenford
Skylight installation in Greenford: questions
Is the survey free?
Yes, for new installations. Repair visits are charged.
How long does installation take?
Fitting into a prepared upstand takes about a day. A new opening in an existing roof, including making good, often takes two to three days.
Do you work with builders?
Yes — on new extensions we fit to the builder's programme once the upstand or roof is ready.
Is the survey in Greenford free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
How do I book a survey in Greenford?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
