What the job costs in Stevenage
Standard window
Centre-pivot roof window with flashing kit, tiles cut and refitted, inner lining
Larger or top-hung
Bigger or top-hung windows, or two in the same roof
Electric or pair
Electric or solar windows, or a matched pair with blinds
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 Stevenage and nearby
Looking at a property near Stevenage but not quite in it? We work across SG1, SG2 and SG4 and outwards to Hitchin, Letchworth Garden City and Welwyn Garden City. Give us the full postcode when you get in touch, because access, parking and the route for a large unit all depend on the exact street. Those details shape the quote for any job around Stevenage.
Already bought your unit?
There are two ways to do this. Supply and fit means we source a pitched roof window 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.
What the job includes
- Underlay collar or membrane dressed and taped around the frame
- Flashing kit matched to tiles, slates or a recessed fit
- Insulation collar and vapour layer fitted to stop a cold edge
- Flashing to suit the roof — We match the flashing kit to your roof covering before ordering.
- Head height and view — We think about how the window will be used from inside before fixing its height.
Fitting your pitched roof window, step by step
Morning first: the team arrives, introduces itself and walks through the job with you. Dust sheets go down in the room below and along the route in. Then the opening and upstand, or the flashing on a pitched roof, are checked against the unit's measurements. A pitched roof window goes in, is fixed to the maker's pattern and sealed into the roof covering. Inside, the reveal is finished as quoted. Before leaving, the team clears debris and talks you through what was done. Most jobs of this type take one day.
Do you need permission in Stevenage?
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 for a quick quote
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, SG1 or a neighbouring district.
Common questions in Stevenage
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.
How does payment work?
Payment terms are set out on your written quote before you accept it. Depending on the job, that may mean a deposit, stage payments for larger work, or payment on completion. The contract is with S&K Property Investments and Improvement Ltd, part of the S&K Group. Nothing is added without your agreement: if something unexpected comes up, we discuss it and agree any change before carrying on.
Do you cover Stevenage?
Yes. Fitters travel to addresses in Stevenage and the surrounding districts, including SG1. 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.
Ask for a quote for your Stevenage roof. Survey dates are offered based on fitter availability once you are happy with the price.

