Skylight replacement in Hampstead: what is involved?
Thinking about skylight replacement in Hampstead? The short answer: replacing tired domes and failed glass with a modern rooflight. 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. In Hampstead, as anywhere, skylight replacement is the usual choice for yellowed domes, misted glass and leaking roof windows.
From Hampstead to Kilburn, Highgate and Cricklewood, the same survey-first process applies: measure, specify, fix the price, then fit.
Specification options
- Dome to flat glass upgrade
- Roof window replacement in pitched roofs
- Upstand rebuild and insulation
- Fixed to electric opening
- Misted glass unit replacement only
- Better thermal performance
- Option to add opening and rain sensor
Things we check at survey
- Enlarging the opening changes the structure and may need approval
- Old glass and domes are disposed of responsibly
Do you need permission in Hampstead?
Most rooflights on English houses do not need planning permission, provided they keep within 150 mm of the roof surface and below the ridge line. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
Skylight replacement prices in Hampstead
These are typical supply-and-fit ranges. For an address in Hampstead, 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 |
|---|---|---|
| Replacement with upstand rebuild and opening unit | £2,995 – £4,795 | £2,495 – £3,995 |
| Dome to flat glass upgrade Typical | £1,915 – £2,995 | £1,595 – £2,495 |
| Like-for-like glass rooflight | £1,555 – £2,155 | £1,295 – £1,795 |
What happens next
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Hampstead address.
- 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.
Skylight replacement near Hampstead
Other services in Hampstead
Skylight replacement in Hampstead: questions
Can I go bigger when replacing?
Possibly. Enlarging the opening means trimming joists, so we check the structure first.
How long does a replacement take?
Usually a day for a standard rooflight on a sound upstand.
Do I need building regulations approval to replace a rooflight?
Replacements in existing homes generally need to meet current thermal standards and may need notification or approval. We advise on the route for your job.
Do you offer skylight replacement in Hampstead?
Yes. We carry out skylight replacement in Hampstead and across Greater London. Send your postcode and we will offer a survey date when we reply.
Is the survey in Hampstead free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
