What does skylight installation in Carrickfergus involve?
Thinking about skylight installation in Carrickfergus? The short answer: survey, supply and fit — new openings, extensions and fit-only work. The longer answer depends on your roof, which is why we survey before we price.
Many Northern Irish homes have later flat-roofed kitchen extensions where an old dome can be swapped for glass. Skylight installation suits new extensions, new openings and fit-only jobs.
Carrickfergus sits about 9 km from Newtownabbey and 11 km from Bangor, County Down, and we cover the whole BT38 postcode district and the roads in between.
Specification options
- Electrics coordination
- New openings with joist trimming
- Upstands and flashings
- Supply and fit
- Fit only (customer-supplied units)
- Fixed price in writing before work
- Fit-only for units you have bought
What to check first
- Work at height is planned with suitable access
- Fit-only work relies on the product being suitable and complete
Planning and building rules for Carrickfergus
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. Listed buildings also need listed building consent from the council.
Technical Booklet F1 (2022) asks for replacement windows and rooflights in existing homes to reach WER Band C or a U-value of 1.6 W/m²K, assessed in the vertical position. Extensions follow a 25% glazing allowance in Technical Booklet F1.
Read the planning permission guide before you commit to a design.
Skylight installation prices in Carrickfergus
These are typical supply-and-fit ranges. For an address in Carrickfergus, 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 |
|---|---|---|
| New opening in an existing roof, supply and fit | £2,395 – £5,395 | £1,995 – £4,495 |
| Supply and fit into a new extension Typical | £1,435 – £3,595 | £1,195 – £2,995 |
| Fit only, customer-supplied unit | £595 – £1,195 | £495 – £995 |
The process, step by step
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Carrickfergus address.
- 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.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Neighbouring towns
More we do in Carrickfergus
Skylight installation in Carrickfergus: questions
Do you fit rooflights bought elsewhere?
Yes. We check the product and the opening first, and our workmanship terms cover the fitting rather than the product.
Is the survey free?
Yes, for new installations. Repair visits are charged.
Do I need a structural engineer?
For new openings that cut joists or rafters, a structural check is sensible and building control may ask for calculations.
How do I book a survey in Carrickfergus?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Will I need planning permission in Carrickfergus?
Northern Ireland's householder permitted development allows rooflights within limits — no more than 15 cm projection on road-facing slopes and a 0.5 m margin from ridge, eaves and party walls.
