Skylight replacement in Egham: what is involved?
Thinking about skylight replacement in Egham? 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.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. Think of skylight replacement for yellowed domes, misted glass and leaking roof windows.
Egham sits about 3 km from Staines and 7 km from Ashford, Surrey, and we cover the whole TW20 postcode district and the roads in between.
Choices for your Egham project
- Upstand rebuild and insulation
- Fixed to electric opening
- Misted glass unit replacement only
- Roof window replacement in pitched roofs
- Like-for-like size replacement
- Often reuses the existing opening
- Clearer view and more light
What to check first
- Upstand and roof condition decide the scope
- Old glass and domes are disposed of responsibly
Do you need permission in Egham?
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.
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. 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.
Our planning guide covers each nation in more detail.
Skylight replacement prices in Egham
These are typical supply-and-fit ranges. For an address in Egham, 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
- Tell us what you have. Send the TW20 postcode, a rough size and a couple of photos.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Agree the quote. You approve the specification and price before anything is ordered.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Nearby towns
Other services in Egham
Questions about skylight replacement in Egham
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.
Will it mess up my ceiling?
We protect the room and make good the reveal. Minor decoration may be needed afterwards.
Will I need planning permission in Egham?
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.
Is the survey in Egham free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
