Skylight replacement in Leigh: what is involved?
Skylight replacement in Leigh means replacing tired domes and failed glass with a modern rooflight. We cover the WN7 district and the rest of Greater Manchester, with a survey before any price is fixed.
Stone and brick terraces are typical across the North West, and roof windows in rear slopes are a common way to light attic rooms. In Leigh, as anywhere, skylight replacement is the usual choice for older extensions due a modern rooflight.
We work across Greater Manchester, including Leigh, and in neighbouring towns such as Atherton and Tyldesley. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Leigh
- Misted glass unit replacement only
- Upstand rebuild and insulation
- Roof window replacement in pitched roofs
- Like-for-like size replacement
- Fixed to electric opening
- Cures most chronic leaks
- Better thermal performance
Things we check at survey
- Upstand and roof condition decide the scope
- A replacement is a chance to meet current thermal standards
Planning, building control and Leigh
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. 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.
Read the planning permission guide before you commit to a design.
Guide prices for Leigh
Prices below are shown including and excluding VAT. In Leigh, as elsewhere, making good inside and access equipment are the main variables.
| 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
- Send the details. Postcode, rough size and a photo of the roof and room.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
Related work in Leigh
Common questions
What do you do with the old unit?
We remove it from site and recycle what can be recycled.
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.
How long does a replacement take?
Usually a day for a standard rooflight on a sound upstand.
Do I need to be at home for the survey in Leigh?
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 Leigh?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
