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

Sliding rooflight installation in County Down

Before any sliding rooflight is fitted in County Down, three measurements get checked: the builder's opening, the external size of the unit, and the upstand height above the finished roof, or the batten and tile details on a pitched roof. Get those right and the rest of the job follows. We handle sliding rooflight installation in every part of County Down, with 4 towns listed on the site and the countryside between them covered too.

Guide prices in County Down

Compact sliding

£7,795 – £10,795including VAT at 20%

Motorised sliding unit for a stair or hatch opening

Standard sliding

£10,795 – £15,595including VAT at 20%

Larger opening onto a roof terrace

Large sliding

£15,595 – £22,795including VAT at 20%

Big spans, lifting gear and longer installs

Guide ranges for supply & fit. Your price is fixed in a written quote after we have seen photos or surveyed. Scaffold, access towers or a crane are priced separately if the job needs them, and building control fees, where a job needs them, are shown as their own line.

Towns we list in County Down

Fitting across County Down means planning routes, access and lifting as well as the roof itself. Narrow lanes, shared driveways and town-centre parking restrictions all affect how a large unit is delivered and raised to roof level. We ask about these early so the quote reflects them. That approach is the same everywhere we work in Northern Ireland, from single domestic jobs to multi-unit commercial sites.

What we do on the day

  • Lifting plan for the unit, often with gear booked for the day
  • Upstand checked for strength, square and level along its full length
  • Cable routed to the motor, ready for the electrician's final connection, quoted as a separate line
  • Weight and lifting — We plan the lift for a sliding rooflight before it is ordered.
  • Planning for a roof terrace — We flag early whether planning may be needed for the work around the rooflight.

Rules that apply in Northern Ireland

For a home in Northern Ireland, check planning first: rooflights are excluded from permitted development in conservation areas and within the curtilage of listed buildings, and elsewhere must keep 0.5 m clear of the ridge, eaves and verges. Then building control: a new opening alters the roof structure, so expect a building control application and confirm with your council, and the glazing must achieve WER Band C or 1.6 W/m²K. We check both for your address before quoting.

Common questions in County Down

What is included in the price?

The written quote lists it line by line. Typically that covers fitting labour, fixings, sealants, membrane or flashing materials, any upstand work, internal finishing if agreed, and taking away the waste. For supply and fit, the unit itself is included too. Scaffold, lifting gear and any third-party fees, where needed, are shown separately so you can see what each part of the job costs.

Do I need planning permission for a rooflight in County Down?

Often not. Many rooflights fall under permitted development, provided they do not project beyond the national limit and meet the other conditions that apply in Northern Ireland. Conservation areas, listed buildings and some flats are different and may need consent. Because the rules depend on the property, we confirm what is likely to apply at your address and point you to the planning authority where an application is needed.

Do you make good inside after fitting?

Yes, where the quote includes it. Internal finishing usually means lining the reveal with plasterboard, taping or skimming, and fitting trim where it meets the ceiling. Some people prefer their own plasterer or decorator to finish off, which is fine. The written quote spells out exactly where our work stops, so nobody is left guessing about who does what once the unit is in.

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

Fitting in County Down

Send photos and rough sizes, or ask for a survey visit for install work. You get one fixed written price before anything starts.

CallGet a quote