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RooflightInstallers.co.uk
Bodmin · PL31 · Cornwall

Rooflight replacement in Bodmin

Rooflight replacement in Bodmin 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 replacement rooflight to the maker's instructions for fixings, packers and sealant, for homes and businesses across Bodmin and the rest of Cornwall. 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 £1,095 · Supply & fit; building control notice fee extra in England and Wales

Guide prices

Like-for-like swap

£1,095 – £1,695including VAT at 20%

Old dome or unit removed and disposed of, new glass rooflight fitted to the existing sound kerb

New upstand and swap

£1,695 – £2,645including VAT at 20%

Old kerb taken off, new insulated upstand built, roof covering made good, new unit fitted

Opening or large unit

£2,645 – £4,545including VAT at 20%

Electric or larger replacement, including making good inside

Guide ranges for supply & fit; building control notice fee extra in England and Wales. 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 PL31 and neighbouring districts

Covering Bodmin means covering the people who live and work there, not a single postcode. We take on domestic and commercial jobs in PL31, PL30 and PL22, and are happy to quote further out in St Austell and Newquay. If your address sits between towns, tell us and we will confirm whether it falls in our normal area or needs travel set out separately on the quote.

Already bought your unit?

A damaged delivery is a frequent snag on fit-only work. Before the day, unpack a replacement 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.

On the day, we cover

  • New unit bedded, fixed and sealed exactly as its maker shows
  • Internal reveal made good where the old trim or plaster was damaged
  • Roof membrane repaired and turned up where it meets the kerb
  • Energy rules for the new unit — We make sure the replacement meets the current energy limit, not just the old unit's performance.
  • Is the kerb worth keeping? — We decide whether the existing kerb can stay only after checking it for rot, height and squareness.

Fitting your replacement rooflight, step by step

Protection comes before tools. Floors, furniture and stairs get covered, and the ceiling below the opening is sheeted to catch dust. Up top, the fitters confirm the opening is square and the upstand or flashing suits what the maker specifies. Fixing follows, then weather-sealing into the membrane, felt or tiles. Only once the roof is tight do they turn to the internal reveal. Time on site for a replacement rooflight: one day, weather permitting.

Regulations for Bodmin properties

In England, a new rooflight opening generally needs building regulations approval because the roof structure is altered and the glazing must meet energy rules: 2.2 W/m²K for a rooflight in an existing home, or 1.4 W/m²K (or WER Band B) for a roof window. Planning is often not needed on a house: permitted development covers rooflights that stand no more than 0.15 m proud of the roof slope and sit below the highest part of the roof. Flats, listed buildings and areas with an Article 4 direction are different, so we check your address first.

Details that speed up your quote

A fast quote needs five things: a photo of the roof from outside, one from the room below, rough sizes of the opening or the space, the roof covering (felt, single-ply, fibreglass, tiles, slate or metal), and a note on access. If you have already bought the unit, add the product link or spec sheet. And give us the postcode, PL31 or a neighbouring district.

Common questions in Bodmin

Can you replace an old dome without redoing the whole roof?

Usually, yes. If the existing kerb is sound, level and tall enough, a new unit can often sit on it with a fresh seal to the roof covering. If the kerb is rotten or too low, we rebuild it and patch the covering around it rather than stripping the whole roof. This is checked at the survey and included in the written quote, so you know the full scope first.

Do you cover Bodmin?

Yes. Fitters travel to addresses in Bodmin and the surrounding districts, including PL31. 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.

Does a rooflight need building regulations approval?

A new opening usually needs building regulations approval. A replacement is a controlled fitting: it must be self-certified by an installer registered with a competent person scheme or notified to building control. We are not registered with a scheme, so replacements we fit are notified to building control with a building notice, and the council's fee is shown on your quote.

Got a unit waiting to go in, or need one sourced? Either way, start with your Bodmin address and a couple of photos.

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

Replacements in Bodmin

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

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