Skylight installation for Walthamstow: the essentials
Skylight installation in Walthamstow means survey, supply and fit — new openings, extensions and fit-only work. We cover the E17 district and the rest of Greater London, with a survey before any price is fixed.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. Think of skylight installation for builders' projects and retrofits into finished roofs.
We work across Greater London, including Walthamstow, and in neighbouring towns such as Leytonstone and Tottenham. Access, parking and how the glass reaches the roof are all checked at the survey.
Specification options
- Upstands and flashings
- Internal plaster reveal
- Supply and fit
- Electrics coordination
- New openings with joist trimming
- Making good inside included
- Free survey for new installations
Before you order: points to check
- Structural changes may need an engineer's check
- Building Regulations approval (a building warrant in Scotland) may be needed
Consents for skylight installation in Walthamstow
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof. 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. Replacing a rooflight or roof window can be self-certified by an installer registered with an authorised competent person scheme; otherwise building control approval is needed.
See our building regulations guide for U-values, glazing limits and self-certification.
Guide prices for Walthamstow
These are typical supply-and-fit ranges. For an address in Walthamstow, 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 |
|---|---|---|
| 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 |
The process, step by step
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Walthamstow, measures and checks structure and access.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Nearby towns
More we do in Walthamstow
Questions about skylight installation in Walthamstow
Do you work with builders?
Yes — on new extensions we fit to the builder's programme once the upstand or roof is ready.
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.
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 I need to be at home for the survey in Walthamstow?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
How do I book a survey in Walthamstow?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
