Fitting jobs in Biggleswade
Fitting & replacement
- Fit-only rooflight installation · from £445
- Rooflight replacement · from £1,095
- New rooflight in an existing roof · from £2,295
- Rooflight upstands & kerbs · from £245
- Rooflight glass replacement · from £445
- Rooflight leak repairs · from £145
Flat roof rooflights
- Flat rooflight installation · from £995
- Frameless rooflight installation · from £1,445
- Electric opening rooflight installation · from £2,645
- Walk-on rooflight installation · from £3,345
- Sliding rooflight installation · from £7,795
- Roof access hatch installation · from £1,795
- Roof lantern installation · from £3,095
Pitched roofs & lofts
- Pitched roof window installation · from £845
- Loft conversion roof windows · from £1,795
- Conservation rooflight installation · from £1,145
- Sun tunnel installation · from £595
Commercial & trade
- Commercial rooflight installation · from £1,095
- Dome rooflight replacement · from £395
- Smoke vent rooflight installation · from £3,595
- Trade rooflight fitting · from £295 + VAT
The details a specialist gets right
Product warranties on rooflights usually depend on the unit being fitted to the maker's instructions. Those instructions cover upstand height, fixing centres, sealants, and how the roof covering is dressed in. Following them line by line takes familiarity with how different units go together. A specialist fitter reads the paperwork, checks the delivery and measures the opening before starting, then fits to the book. If something on site does not match, they flag it rather than improvising. That protects both the roof and the warranty.
Postcodes and places we cover
From the centre of Biggleswade out to its edges, postcode districts SG18, SG19 and SG17 are all standard cover. The same applies to neighbouring Letchworth Garden City, about 8 miles off, and St Neots, around 9 miles away. If you are further out, towards Bedford or beyond, send the postcode and we will confirm before quoting.
Planning and building control
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.
Questions about rooflight fitting in Biggleswade
Do you make good inside after fitting?
Yes, where the quote includes it. Internal finishing usually means lining the reveal with plasterboard, taping or skimming, and fitting trim where it meets the ceiling. Some people prefer their own plasterer or decorator to finish off, which is fine. The written quote spells out exactly where our work stops, so nobody is left guessing about who does what once the unit is in.
What if my roof opening is the wrong size for the 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.
Can you fit a rooflight in winter or when it is raining?
Yes, within limits. Cold is less of a problem than wet, because membranes, primers and sealants need a dry surface to bond. We plan fitting days around the forecast and may move a date if heavy rain is due. If the roof has to be opened up, it is not left overnight without a temporary weather seal, so the room below stays dry while the work is finished.
Do you offer trade rates for builders and roofers?
We carry out subcontract fitting for builders, roofers, extension companies and commercial contractors. Pricing is per job or per schedule of units, agreed in writing before we start. We can work to your programme, fit on your upstand or build our own, and leave the opening ready for the next trade. Send drawings or a unit schedule and we will come back with a trade quote.

