Skylight replacement in Bangor, County Down: what is involved?
Skylight replacement in Bangor, County Down means replacing tired domes and failed glass with a modern rooflight. We cover the BT19 district and the rest of County Down, with a survey before any price is fixed.
Conservation areas and listed buildings in Northern Ireland are excluded from householder permitted development, so we check before quoting. Typical uses for skylight replacement include older extensions due a modern rooflight.
Bangor, County Down is the main town we list in County Down; we also cover nearby Newtownards and Carrickfergus.
Specification options
- Like-for-like size replacement
- Upstand rebuild and insulation
- Fixed to electric opening
- Dome to flat glass upgrade
- Misted glass unit replacement only
- Better thermal performance
- Clearer view and more light
What to check first
- Upstand and roof condition decide the scope
- Enlarging the opening changes the structure and may need approval
Consents for skylight replacement in Bangor, County Down
Most rooflights on houses in Northern Ireland are permitted development under Class B, but not in a conservation area or on a listed building's curtilage. Listed buildings also need listed building consent from the council.
Northern Ireland's energy rules assess rooflight U-values in the vertical position — unlike England and Wales — and expect 1.6 W/m²K or Band C for replacements. Extensions follow a 25% glazing allowance in Technical Booklet F1.
See our building regulations guide for U-values, glazing limits and self-certification.
Skylight replacement prices in Bangor, County Down
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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Bangor, County Down address.
- Survey. We measure the opening, check the roof build-up and agree the options.
- 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.
Skylight replacement near Bangor, County Down
Other services in Bangor, County Down
Common questions
What do you do with the old unit?
We remove it from site and recycle what can be recycled.
Can I go bigger when replacing?
Possibly. Enlarging the opening means trimming joists, so we check the structure first.
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 Bangor, County Down?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Will I need planning permission in Bangor, County Down?
In Northern Ireland, roof alterations come under Class B of the 2015 order: a rooflight facing a road must not project more than 15 cm and must sit at least 0.5 m from the ridge, eaves, verge and party wall.
