What does skylight replacement in Catford involve?
Our skylight replacement service in Catford covers replacing tired domes and failed glass with a modern rooflight. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written 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 Catford, as anywhere, skylight replacement is the usual choice for yellowed domes, misted glass and leaking roof windows.
From Catford to Lewisham, Blackheath and Greenwich, the same survey-first process applies: measure, specify, fix the price, then fit.
Specification options
- Upstand rebuild and insulation
- Fixed to electric opening
- Dome to flat glass upgrade
- Like-for-like size replacement
- Misted glass unit replacement only
- Option to add opening and rain sensor
- Clearer view and more light
Before you order: points to check
- Enlarging the opening changes the structure and may need approval
- Upstand and roof condition decide the scope
Do you need permission in Catford?
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. 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 Catford
These are typical supply-and-fit ranges. For an address in Catford, 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 |
From enquiry to finished job
- Tell us what you have. Send the SE6 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.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Neighbouring towns
Other services in Catford
Skylight replacement in Catford: questions
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.
Can you replace only the misted glass?
Sometimes, if the frame is sound and the maker supplies replacement units. Often a complete new rooflight costs little more and performs better.
How long does a replacement take?
Usually a day for a standard rooflight on a sound upstand.
Can you work alongside my builder in Catford?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Do I need to be at home for the survey in Catford?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
