What the job costs in Biggleswade
Small sealed unit
Misted or cracked unit up to about 1 m² measured, made and refitted
Medium sealed unit
Units up to about 2 m², or toughened and laminated
Large or specialist
Triple glazed, solar-control or heavy units needing lifting gear
Guide ranges. The first visit is charged and priced before booking; any new glass is priced in writing before work starts. 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 Biggleswade we cover
Fitters travel to the job, so the address is what counts. In Biggleswade that means postcode districts SG18, SG19 and SG17, and the same teams can just as easily take on work in Letchworth Garden City, about 8 miles away, or St Neots at roughly 9 miles. Survey and fitting dates are offered according to fitter availability, and travel is built into the quote rather than added later.
What the job includes
- New glazing tapes, gaskets or sealant fitted to suit the frame
- Sealed unit ordered to match or improve on the original glass
- New unit set on packers, then beaded, capped or bonded as designed
- Can the glass come out? — We check whether your rooflight has removable glass or a bonded unit before booking a fitting visit.
- Matching the glass make-up — We identify the existing glass so the replacement performs at least as well.
How the glass is replaced
The second visit is the quick one. With the new unit made to size, the fitters take the old glass out, check the frame and drainage paths, and set the new glass on packers so it sits square and drains properly. Seals and cappings are renewed where needed, the area is cleared, and you are shown what was done.
Do you need permission in Biggleswade?
Two sets of rules matter in England. Planning: a rooflight on a house is normally permitted development if it projects no more than 0.15 m and stays below the highest part of the roof, but flats, listed buildings and Article 4 areas need checking. Building regulations: new openings need approval for the structure and energy performance, and a replacement is a controlled fitting. We are not registered with a competent person scheme, so we notify replacements to building control with a building notice and put the council's fee on the quote.
What to send us
To price the measuring visit, send a photo of the rooflight from inside showing the misting or crack, one from outside if you can reach a safe viewpoint, and the rough size of the glass. If you know the make or have the original paperwork, include that too, along with the postcode.
Common questions in Biggleswade
How long does new rooflight glass take?
The new sealed unit is made to the measured size, so there is a gap between the measuring visit and the fitting visit while it is produced. We give you the expected timing when we price the glass, and book the fitting once it has arrived.
Can I upgrade the glass while it is being replaced?
Usually. Solar-control, self-cleaning, toughened or laminated glass can be specified as long as the frame can take the thickness and weight. We check that on the measuring visit and price the options side by side.
Is new glass or a new rooflight better value?
If the frame, gaskets and drainage are sound, new glass is usually the cheaper fix. If the frame is cracked, distorted or leaking at the kerb, a full replacement is better value. After the measuring visit we price both so you can compare.
Got a leak or a misted unit in Biggleswade? Send photos first and we will tell you what the visit costs before booking.

