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Bangor · BT20 · County Down

Sliding rooflight installation in Bangor

Sliding rooflight installation in Bangor comes down to what happens around the glass. A good unit sat on a poor upstand, or with the membrane or flashing cut short at the corners, will still let water in. We fit each sliding rooflight to the maker's instructions for fixings, packers and sealant, for homes and businesses across Bangor and the rest of County Down. That covers supply and fit, fit-only for a unit you already own, and swapping out a tired one. Every job starts with a written quote, so the price and scope are clear before anyone climbs a ladder.

Guide price from £7,795 · Supply & fit

Bangor guide prices

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.

Covering BT20 and neighbouring districts

Bangor and the districts around it, BT20, BT19 and BT21, all sit inside our working area. So does the ground between Bangor and Newtownards (5 miles), and on towards Carrickfergus (7 miles). When a fitting team is booked, their travel is already in the quoted price, so it does not turn up as a surprise line on the final bill.

Buying your own, or letting us supply

A damaged delivery is a frequent snag on fit-only work. Before the day, unpack a sliding rooflight, photograph it, and tell the seller about any cracks or scuffs, because claims are much easier made early. We will also ask for the model or a link, so we can read the maker's instructions and check the builder's opening size and the upstand height it expects. If everything lines up, we fit it. If not, we explain what needs changing first.

Included in the work

  • Lifting plan for the unit, often with gear booked for the day
  • Frame fixed and weathered with the membrane dressed up the kerb
  • Full open and close cycle checked before handover
  • Power and safety stops — We confirm the power supply and the safety features before fitting day.
  • What the glass slides over — We check the area the glass will cover when open before deciding where the unit goes.

How a fitting day runs

Arrive and agree the plan. Sheet the floor and furniture. Set up the ladder, tower or scaffold. Check the opening, the upstand or flashing, and the unit against the paperwork. Fix and pack a sliding rooflight level. Seal it into the roof. Line the reveal or fit the ceiling trim. Clean the glass, clear the waste, and talk you through it. That is the shape of most fitting days, and for this type of job it usually takes one to two days.

Do you need permission in Bangor?

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.

Before you get in touch

For fit-only work, the product details matter most: the link, the spec sheet, or a photo of the label on the box. Alongside that, send pictures of the roof and the ceiling below, approximate opening sizes, the type of roof covering, and how someone would get onto the roof. For supply and fit, the same photos and sizes do the job. Finish with your postcode, such as BT20.

Common questions in Bangor

Can you remove and dispose of the old rooflight?

Yes. Taking out the old unit is part of any replacement job, and it leaves with the rest of the waste unless you ask to keep it. Old domes, glass and frames go through proper waste routes. If removal turns up a rotten kerb or damaged decking, we show you what we have found and agree the repair with you before going any further.

How does payment work?

Payment terms are set out on your written quote before you accept it. Depending on the job, that may mean a deposit, stage payments for larger work, or payment on completion. The contract is with S&K Property Investments and Improvement Ltd, part of the S&K Group. Nothing is added without your agreement: if something unexpected comes up, we discuss it and agree any change before carrying on.

What if my roof opening is the wrong size for the sliding rooflight?

We find out before the fitting day, not on it. If the opening is slightly out, it can usually be adjusted by trimming or by packing out the upstand. If it is a long way off, the choice is between altering the opening and changing the unit. Bear in mind that rooflights are often sold by builder's opening size rather than external size, so check which one your measurement refers to.

Planning a sliding rooflight in Bangor? Tell us about the roof and we will come back with a clear price in writing.

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

Sliding rooflights in Bangor

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

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