What the job costs in Gerrards Cross
Short rigid tube
Around 250 mm tube, short straight run through a loft
Wider or longer run
Around 350 mm tube or longer runs with bends
Flat roof or complex
Flat roof kits, long runs or two tubes
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.
Fitting across Gerrards Cross and nearby
Distance is rarely the deciding factor. A roof in Chalfont St Peter, 2 miles from Gerrards Cross, gets the same survey, the same written quote and the same fitting process as one in SL9, UB9 and HP9. What changes the price is the job itself: size of unit, roof type, access and lifting. Uxbridge, around 4 miles out, is treated the same way.
Already bought your unit?
There are two ways to do this. Supply and fit means we source a sun tunnel that suits your roof and install it, so one company answers for both the product choice and the fitting. Fit-only means you buy the unit and we install it. With fit-only, the product warranty stays with the maker or seller, and our written guarantee covers the fitting work. Both routes get the same checks on the opening, the upstand and the maker's instructions before anything is fixed.
Included in the work
- Ceiling opening cut neatly and the diffuser fitted
- Roof opening cut and the flashing fitted to tiles, slates or a flat-roof kit
- Rigid or flexible tube run and joined, with as few bends as possible
- Condensation in cold lofts — We insulate the tube where it passes through a cold loft.
- Tube size — We match the tube size to the room and the roof.
A typical installation day
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 sun tunnel 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 half a day to a day.
Do you need permission in Gerrards Cross?
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.
Help us quote accurately
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, SL9 or a neighbouring district.
Common questions in Gerrards Cross
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.
Do you cover Gerrards Cross?
Yes. Fitters travel to addresses in Gerrards Cross and the surrounding districts, including SL9. 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.
Will my new sun tunnel 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.
Get in touch with the details of your Gerrards Cross property and we will explain what the job involves and what it costs.
