Skylight installation in Coulsdon: what is involved?
We handle skylight installation across Greater London, including Coulsdon. In short: survey, supply and fit — new openings, extensions and fit-only work. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
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. Skylight installation suits new extensions, new openings and fit-only jobs.
We work across Greater London, including Coulsdon, and in neighbouring towns such as Purley and Banstead. Access, parking and how the glass reaches the roof are all checked at the survey.
Specification options
- Internal plaster reveal
- Electrics coordination
- Fit only (customer-supplied units)
- Supply and fit
- New openings with joist trimming
- Fitting for builders on new extensions
- Making good inside included
Before you order: points to check
- Work at height is planned with suitable access
- Structural changes may need an engineer's check
Consents for skylight installation in Coulsdon
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. Listed buildings need listed building consent, flats have no householder permitted development rights, and an Article 4 direction can remove the rights in some conservation areas.
Under Approved Document L, a rooflight added to an English home must achieve at least 2.2 W/m²K (horizontal plane), and a roof window 1.4 W/m²K or Window Energy Rating Band B. 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.
Read the planning permission guide before you commit to a design.
Guide prices for Coulsdon
Prices below are shown including and excluding VAT. In Coulsdon, as elsewhere, making good inside and access equipment are the main variables.
| 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 |
What happens next
- Tell us what you have. Send the CR5 postcode, a rough size and a couple of photos.
- 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.
Nearby towns
More we do in Coulsdon
Common questions
Who handles building control?
We tell you which route applies — building control approval, a building warrant in Scotland, or in England and Wales self-certification by a registered competent person — and supply the product data.
Do I need a structural engineer?
For new openings that cut joists or rafters, a structural check is sensible and building control may ask for calculations.
Do you fit rooflights bought elsewhere?
Yes. We check the product and the opening first, and our workmanship terms cover the fitting rather than the product.
Do you offer skylight installation in Coulsdon?
Yes. We carry out skylight installation in Coulsdon and across Greater London. Send your postcode and we will offer a survey date when we reply.
Is the survey in Coulsdon free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
