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RooflightInstallers.co.uk
Truro · TR1 · Cornwall

Commercial rooflight installation in Truro

Plenty of rooflight trouble starts with a tape measure. Units are often sold by the builder's opening, meaning the hole in the roof, rather than the overall external size, and confusing the two leaves you with a frame that does not suit the opening. Before we fit any commercial rooflight in Truro, we measure the opening, the upstand or kerb where there is one, and the finished roof level, then compare them with the maker's drawing. If something is out, you hear about it before the fitting day rather than on it. That single check keeps most jobs like this on track.

Guide price from £1,095 · Supply & fit, per unit; site set-up priced separately

Guide prices in Truro

Per standard unit

£1,095 – £1,895including VAT at 20%

Flat glass or polycarbonate unit on an existing kerb, as part of a multi-unit job

Per large unit

£1,895 – £3,345including VAT at 20%

Larger or ventilating units, edge protection in place

Programme of works

£3,345 – £7,195including VAT at 20%

Phased replacement across a building, priced from a survey

Guide ranges for supply & fit, per unit; site set-up priced separately. 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.

Is your address covered?

Distance is rarely the deciding factor. A roof in Falmouth, 8 miles from Truro, gets the same survey, the same written quote and the same fitting process as one in TR1, TR4 and TR3. What changes the price is the job itself: size of unit, roof type, access and lifting. Redruth, around 8 miles out, is treated the same way.

On the day, we cover

  • Kerbs checked and packed, adapted or rebuilt where needed
  • Phasing agreed so occupied areas stay dry and usable
  • Old units removed, with waste taken off site
  • Energy limits for non-domestic roofs — We check new units against the energy limits for non-domestic buildings.
  • Fragile roofs and rooflights — We treat every rooflight and the roof around it as fragile until we have checked it.

Fitting your commercial rooflight, step by step

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 commercial 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 about a day per unit, longer on big roofs.

Planning, building control and Truro

On commercial buildings in England, new rooflights and changes to roof structure go through building control, and replacements in non-dwellings also need building control involvement unless fitted by a scheme-registered installer, which we are not; load-bearing or structural glass always goes through building control. Fire rules matter near boundaries and over escape routes, and smoke vents must be certified to BS EN 12101-2. We confirm the route and the paperwork for your building before work starts.

Before you get in touch

What we cannot see, we have to guess, and guesses make quotes wider. So the more you send, the tighter the price. Useful: shots from the roof or garden, shots from the room underneath, a rough width and length, the roof finish, any access problems, and the product page if you have already ordered. Add the property postcode around TR1 and we will come back with a quote or a survey date.

Common questions in Truro

Will my new commercial rooflight leak?

A correctly fitted unit should not. Leaks usually trace back to the detail around the frame: an upstand that is too low, a membrane or flashing that is not dressed properly, sealant applied to a damp surface, or water ponding against the kerb. We fit to the maker's instructions and check each of those points. The fitting carries a written workmanship guarantee, with its terms set out on your quote.

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

Do you cover Truro?

Yes. Fitters travel to addresses in Truro and the surrounding districts, including TR1. 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.

Ask for a quote for your Truro roof. Survey dates are offered based on fitter availability once you are happy with the price.

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

Commercial rooflights in Truro

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

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