Sun tunnel installation in Windsor

What the job costs in Windsor

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.

Coverage in and around Windsor

If you also own a property or a business unit in Slough, Egham or Staines, that is no problem. We can survey and quote both, and where it suits, line the fitting days up together. Every address is reached by fitters travelling to it from their current jobs, and SL4, SL3 and SL1 sit comfortably within that pattern.

What we check on a supplied unit

Your unit or ours, the fitting standard is the same. For supply and fit we choose a sun tunnel to suit the roof and price it with the installation. For fit-only we work with what you have, after confirming it arrived undamaged, that it matches the builder's opening, and that the upstand will sit at the height the maker asks for. Report any transit damage to the seller, as the product cover is theirs and the maker's. Our written guarantee applies to the fitting itself.

On the day, we cover

• Dome fixed and sealed on top of the flashing
• Rigid or flexible tube run and joined, with as few bends as possible
• Ceiling opening cut neatly and the diffuser fitted
• Tube size — We match the tube size to the room and the roof.
• Condensation in cold lofts — We insulate the tube where it passes through a cold loft.

Fitting your sun tunnel, 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 sun tunnel: half a day to a day, weather permitting.

Regulations for Windsor properties

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.

Details that speed up your quote

Keep it simple. Two or three photos, outside and inside. Approximate sizes. What the roof is made of. Anything awkward about getting up there, such as a conservatory below, a narrow side path or no parking. If you bought the rooflight online, the link or model name. Then your postcode in or around SL4. That is enough for a first price.

Common questions in Windsor

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