Skylight installation in Lisburn: what is involved?
Our skylight installation service in Lisburn covers survey, supply and fit — new openings, extensions and fit-only work. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Conservation areas and listed buildings in Northern Ireland are excluded from householder permitted development, so we check before quoting. Typical uses for skylight installation include new extensions, new openings and fit-only jobs.
Lisburn is around 11 km from Belfast, and we survey and fit throughout that part of County Antrim, including the BT27 district.
Specification options
- Fit only (customer-supplied units)
- Upstands and flashings
- New openings with joist trimming
- Electrics coordination
- Internal plaster reveal
- Free survey for new installations
- New openings in existing roofs
Things we check at survey
- Building Regulations approval (a building warrant in Scotland) may be needed
- Fit-only work relies on the product being suitable and complete
Consents for skylight installation in Lisburn
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.
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.
What does skylight installation cost in Lisburn?
Prices below are shown including and excluding VAT. In Lisburn, as elsewhere, making good inside and access equipment are the main variables.
| 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 |
How the job runs
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Lisburn address.
- 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.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Skylight installation near Lisburn
Related work in Lisburn
Questions about skylight installation in Lisburn
Do you work with builders?
Yes — on new extensions we fit to the builder's programme once the upstand or roof is ready.
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.
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.
Do you offer skylight installation in Lisburn?
Yes. We carry out skylight installation in Lisburn and across County Antrim. Send your postcode and we will offer a survey date when we reply.
Can you work alongside my builder in Lisburn?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
