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RooflightInstallers.co.uk
Stevenage · SG1 · Hertfordshire

Walk-on rooflight installation in Stevenage

Rooflight work is weather work. Membranes, primers and sealants all want a dry surface, so a fitting day in Stevenage is planned around the forecast rather than pinned to a date regardless of rain. The opening is kept covered whenever it is exposed, and a roof is not left open overnight without a proper temporary seal. That approach applies to every walk-on rooflight we install, from a new opening to a straight swap or a fit-only job. We cover Stevenage, the SG1 district and the rest of Hertfordshire.

Guide price from £3,345 · Supply & fit

Guide prices

Up to 1 m²

£3,345 – £4,545including VAT at 20%

Laminated walk-on unit with anti-slip finish, fitted level with the terrace

Up to 2 m²

£4,545 – £7,195including VAT at 20%

Larger walk-on glazing

Large or bespoke

£7,195 – £11,995including VAT at 20%

Big panes, structural calculations, lifting gear

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.

Areas around Stevenage we cover

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.

Buying your own, or letting us supply

Supply and fit tends to suit people who would rather not pick a unit from a catalogue. We look at the roof, the opening and how you use the room, then put a walk-on rooflight on the quote that fits all three. Fit-only suits people who already know what they want, or have one on site. We are happy with either. The difference is who stands behind what: on fit-only, the maker or retailer covers the product, and our workmanship guarantee covers the installation.

What the job includes

  • Support frame or upstand prepared to the approved structural design
  • Lifting plan for the unit, including people or gear for the day
  • Engineer's calculations and the unit's loading data checked together
  • Units tested to old standards — We check which standard the walk-on unit has been tested to.
  • Drainage around the glass — We check how water will drain from the terrace around the unit.

A typical installation day

On the day, you need to be in at the start and at the end. In between, the fitters get on with it. They will want the room below cleared where possible, a parking spot if you have one, and somewhere to set the unit down safely. After checking the opening and the upstand or flashing, they fix a walk-on rooflight, seal it and finish the inside. Packaging and any old unit leave with them unless the quote says otherwise.

Planning and building rules in England

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.

Before you get in touch

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 SG1. That is enough for a first price.

Common questions in Stevenage

Can you remove and dispose of the old rooflight?

Yes. Taking out the old unit is part of any replacement job, and it leaves with the rest of the waste unless you ask to keep it. Old domes, glass and frames go through proper waste routes. If removal turns up a rotten kerb or damaged decking, we show you what we have found and agree the repair with you before going any further.

Do you need scaffolding to fit a rooflight?

Not always. Single-storey roofs can often be reached safely with ladders, a tower or edge protection. Higher roofs, steep pitches and large units usually need scaffold or a mobile platform, and heavy glass may need a crane. We assess access from your photos or at the survey, and any scaffold or lifting cost is shown as its own line on the written quote.

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.

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

Rear extension at dusk with lit rooflights and a roof lantern
Ready when you are

Walk-on rooflights in Stevenage

Send photos and rough sizes, or ask for a survey for install work. One fixed written price before anything starts.

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