Fit-onlySupply & fitReplacementsTrade fitting
Fitting teams across England, Wales, Scotland & NI · Call 0800 088 6248
RooflightInstallers.co.uk
Northern Ireland · BT postcodes

Rooflight installers in County Down

Rooflight jobs vary a great deal. Flat roofs on extensions, pitched roofs over lofts, metal sheet and single-ply on commercial units: each needs a different approach to the upstand, the flashing and the seal. We fit across County Down, Northern Ireland, matching the method to the roof rather than forcing one detail onto every job. That includes fit-only work, replacements, new openings, roof lanterns, pitched roof windows, conservation rooflights and trade subcontracting, all quoted in writing before work starts. A survey or a set of good photos tells us which approach your roof needs.

Towns we list in County Down

Our fitting teams travel across County Down, so coverage depends on your address rather than on where an office sits. Most addresses in Northern Ireland are standard cover. Remote and island locations, where they apply, are by arrangement, and we confirm that before quoting so there is no confusion later about dates or travel costs.

Fitting services in County Down

Planning and building regulations in Northern Ireland

In Northern Ireland, the energy standard for a new or replacement rooflight or roof window in an existing home is WER Band C or a U-value of 1.6 W/m²K, under Technical Booklet F1. Cutting a new opening alters the roof structure, so a building control application is expected; confirm with the council's building control team. Planning permitted development covers many rooflights on houses if they stay below the ridge, project no more than 15 cm on a road-facing slope and sit at least 0.5 m from the ridge, eaves and verges.

Questions about rooflight fitting in County Down

Will my new rooflight leak?

A correctly fitted unit should not. Leaks usually trace back to the detail around the frame: an upstand that is too low, a membrane or flashing that is not dressed properly, sealant applied to a damp surface, or water ponding against the kerb. We fit to the maker's instructions and check each of those points. The fitting carries a written workmanship guarantee, with its terms set out on your quote.

Do you offer trade rates for builders and roofers?

We carry out subcontract fitting for builders, roofers, extension companies and commercial contractors. Pricing is per job or per schedule of units, agreed in writing before we start. We can work to your programme, fit on your upstand or build our own, and leave the opening ready for the next trade. Send drawings or a unit schedule and we will come back with a trade quote.

What upstand height and roof pitch does rooflight fitting need?

It depends on the product. Manufacturers usually specify a minimum upstand height above the finished roof surface, and a minimum pitch on the glass so rain runs off. We follow the maker's figures for your unit rather than a rule of thumb. If your existing kerb or roof falls short, we explain the options, such as raising the upstand or choosing a unit with built-in pitch.

Do you cover County Down?

Yes. Fitters travel to addresses in County Down and the surrounding districts, including BT postcodes. We do not run an office there; the survey and the fitting happen at your property. A few island and remote postcodes are covered by arrangement; if yours is one, we confirm travel and dates before quoting.

Rear extension at dusk with lit rooflights and a roof lantern
Ready when you are

Rooflight fitting in County Down

Send your postcode, photos and what needs fitting. You will get a fixed written price before anything starts.

CallGet a quote