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RooflightInstallers.co.uk
Gwent · Wales

Conservation rooflight installation in Gwent

Rooflight fitting in Gwent is planned around dry spells, not just calendar dates. That matters more than people think: membranes and sealants need a dry surface, and a roof should not be left open in poor weather. So when we offer a date for conservation rooflight installation, it comes with a sensible fallback. We take jobs across all 20 postcode districts in Gwent, and the written quote sets out what is included before you commit.

Guide prices in Gwent

Small conservation unit

£1,145 – £1,695including VAT at 20%

Low-profile unit with glazing bar, slate or tile flashing

Medium unit

£1,695 – £2,495including VAT at 20%

Larger opening, lead or matching flashings

Large or bespoke

£2,495 – £3,845including VAT at 20%

Larger or made-to-order units for listed or sensitive roofs

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's included

  • Position checked against any consent drawings or council conditions
  • Rafters trimmed with timbers that suit the existing roof
  • Slates or tiles lifted carefully and kept for reuse where possible
  • Conservation area rules by nation — We check the permitted development position for your nation before the rooflight is ordered.
  • Listed building consent — We confirm listed building consent is in place before fitting any rooflight on a listed building.

Rules that apply in Wales

Welsh rules differ from England's in one important way: rooflights lose permitted development rights in conservation areas, National Parks, AONBs and World Heritage Sites. Elsewhere on a house, a rooflight that projects no more than 150 mm and stays below the highest part of the roof is usually fine. Building regulations still apply to new openings, replacements we fit go through a building notice because we are not scheme-registered, and the energy limit for rooflights is 2.2 W/m²K. A new Welsh Approved Document L takes effect on 4 March 2027.

Common questions in Gwent

How long does fitting take?

Fitting a conservation rooflight into an existing, correctly sized opening is often a day's work. New openings take longer, because joists or rafters need trimming, an upstand or flashing has to be built or fitted, and the inside needs finishing. Large units that need lifting gear, and days lost to rain, can stretch things further. Your written quote gives a realistic estimate for your roof.

What if my roof opening is the wrong size for the conservation 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.

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.

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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