What does skylight replacement in Cwmbran involve?
Our skylight replacement service in Cwmbran 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.
Many Welsh homes have older single-storey rear extensions where a glass rooflight brightens a dark kitchen. Think of skylight replacement for older extensions due a modern rooflight.
Neighbouring towns include Pontypool (5 km) and Risca (7 km). We offer a survey date when we reply to your enquiry.
Specification options
- Upstand rebuild and insulation
- Roof window replacement in pitched roofs
- Dome to flat glass upgrade
- Misted glass unit replacement only
- Fixed to electric opening
- Cures most chronic leaks
- Option to add opening and rain sensor
Before you order: points to check
- A replacement is a chance to meet current thermal standards
- Old glass and domes are disposed of responsibly
Planning and building rules for Cwmbran
Welsh householder permitted development (Class C) allows rooflights that project no more than 15 cm and sit no higher than the existing roof — but not in conservation areas, National Parks, AONBs or World Heritage Sites. A side-facing rooflight within 10.5 m of the boundary must be obscure-glazed, and non-opening unless the opening part is more than 1.7 m above the floor.
Approved Document L in Wales (2022 edition) sets 2.2 W/m²K for rooflights, measured horizontally, and 1.4 W/m²K or Band B for roof windows in existing homes. Wales also has its own overheating rules (Part O) for new homes, in force since November 2022.
See our building regulations guide for U-values, glazing limits and self-certification.
What does skylight replacement cost in Cwmbran?
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| 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.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Nearby towns
More we do in Cwmbran
Common questions
What do you do with the old unit?
We remove it from site and recycle what can be recycled.
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 I need to be at home for the survey in Cwmbran?
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 Cwmbran?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
