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RooflightInstallers.co.uk
Gwent · Wales

Loft conversion roof windows in Gwent

A good share of loft conversion roof windows in Gwent is replacement work. Older units go brittle or discoloured, sealed glass mists, and seals give up after years of sun and frost. Swapping the unit is often possible on the existing kerb, provided that kerb is sound, level and tall enough above the finished roof. Where it is not, we rebuild it. We cover the whole of Gwent, across 20 postcode districts, with fitters travelling to each address.

Guide prices in Gwent

Pair of windows

£1,795 – £2,745including VAT at 20%

Two roof windows into a loft room, flashings and linings

Three or four windows

£2,745 – £4,545including VAT at 20%

Bigger loft rooms or stairwells

Balcony or combination

£4,545 – £7,195including VAT at 20%

Balcony-style or stacked window combinations

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 Gwent

From the larger towns to the smaller places in between, we take on rooflight fitting across Gwent. The process is the same for a terrace, a farmhouse extension or an industrial unit: details first, written quote second, fitting day third. Remote and island addresses in Wales, where they arise, are covered by arrangement, and we tell you that before quoting.

What the job includes

  • Underlay dressed and taped around every frame
  • Insulation collars fitted so the room's insulation meets each frame
  • Tiles or slates cut and refitted, with the roof left weathertight
  • Approved loft drawings — We work to the window positions on your approved loft drawings or agree changes with your builder first.
  • Balcony-style windows — We check the rafters and the roof pitch before recommending balcony-style windows.

Rules that apply in Wales

In Wales, a new rooflight opening generally needs building regulations approval, and a replacement needs either a scheme-registered installer's certificate or a building notice to the council. We are not registered with a scheme, so we use a building notice and show the fee on the quote. Rooflights must meet 2.2 W/m²K and roof windows 1.4 W/m²K. Planning is tighter than in England: rooflights are not permitted development in conservation areas, National Parks, Areas of Outstanding Natural Beauty or World Heritage Sites, so we check your address before quoting.

Common questions in Gwent

Can you fit a rooflight in winter or when it is raining?

Yes, within limits. Cold is less of a problem than wet, because membranes, primers and sealants need a dry surface to bond. We plan fitting days around the forecast and may move a date if heavy rain is due. If the roof has to be opened up, it is not left overnight without a temporary weather seal, so the room below stays dry while the work is finished.

What if my roof opening is the wrong size for the loft roof window?

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.

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.

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

Fitting in Gwent

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

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