Dome rooflight replacement in Penzance

Guide prices in Penzance

Guide ranges for supply & fit, per dome; building control notice fee extra on homes 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.

Areas around Penzance we cover

Distance is rarely the deciding factor. A roof in Camborne, 12 miles from Penzance, gets the same survey, the same written quote and the same fitting process as one in TR18, TR20 and TR17. What changes the price is the job itself: size of unit, roof type, access and lifting. Redruth, around 16 miles out, is treated the same way.

Your dome rooflights or ours

Supply and fit tends to suit people who would rather not pick a unit from a catalogue. We look at the roof, the opening and how you use the room, then put a dome rooflight on the quote that fits all three. Fit-only suits people who already know what they want, or have one on site. We are happy with either. The difference is who stands behind what: on fit-only, the maker or retailer covers the product, and our workmanship guarantee covers the installation.

What the job includes

• Adaptor or packing fitted where the old kerb needs it
• Kerb top cleaned of old sealant, fixings and loose felt
• Inside checked for drips and the trim refitted
• Is the kerb sound? — We check each kerb for rot and movement before quoting a dome swap.
• Upgrading to glass — We check whether the kerb suits a glass unit before recommending one.

From arrival to clean-up

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 dome rooflight: a few hours per dome, weather permitting.

Planning and building rules in England

England's rules in short: permitted development usually covers a rooflight on a house roof provided it doesn't stick out more than 0.15 m or rise above the ridge, though a listed building always needs consent and some streets have Article 4 directions. Building regulations apply to new openings, and replacements go through building control; as we are not registered with a competent person scheme, we use a building notice and show the fee on the quote. The energy limit for rooflights in existing homes is 2.2 W/m²K, and the 2026 Approved Document L, in force from 24 March 2027, keeps that figure.

Help us quote accurately

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 TR18.

Common questions in Penzance

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