How we approach skylight replacement in Northolt
We handle skylight replacement across Greater London, including Northolt. In short: replacing tired domes and failed glass with a modern rooflight. 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. Think of skylight replacement for older extensions due a modern rooflight.
Neighbouring towns include Greenford (2 km) and Harrow (4 km). We offer a survey date when we reply to your enquiry.
Choices for your Northolt project
- Upstand rebuild and insulation
- Fixed to electric opening
- Like-for-like size replacement
- Misted glass unit replacement only
- Roof window replacement in pitched roofs
- Option to add opening and rain sensor
- Better thermal performance
Things we check at survey
- Enlarging the opening changes the structure and may need approval
- Old glass and domes are disposed of responsibly
Planning and building rules for Northolt
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. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
Guide prices for Northolt
These are typical supply-and-fit ranges. For an address in Northolt, 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 |
The process, step by step
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Northolt address.
- Survey. We measure the opening, check the roof build-up and agree the options.
- 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.
Nearby towns
Other services in Northolt
Questions about skylight replacement in Northolt
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.
What do you do with the old unit?
We remove it from site and recycle what can be recycled.
Will it mess up my ceiling?
We protect the room and make good the reveal. Minor decoration may be needed afterwards.
Do I need to be at home for the survey in Northolt?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Is the survey in Northolt free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
