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RooflightInstallers.co.uk
Thamesmead · SE28 · Greater London

Pitched roof window installation in Thamesmead

Our guide price for pitched roof window installation starts from £845, and the real figure for your roof in Thamesmead depends on a handful of things: the size and type of pitched roof window, whether the opening exists already, the roof covering, and how easy access is. We fix the price in a written quote before work begins. Nothing gets added on the day without your say-so. For a rough idea first, photos and a couple of measurements are enough to go on, and we cover all of Greater London.

Guide price from £845 · Supply & fit

Guide prices in Thamesmead

Standard window

£845 – £1,395including VAT at 20%

Centre-pivot roof window with flashing kit, tiles cut and refitted, inner lining

Larger or top-hung

£1,395 – £2,045including VAT at 20%

Bigger or top-hung windows, or two in the same roof

Electric or pair

£2,045 – £3,095including VAT at 20%

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.

Covering SE28 and neighbouring districts

Thamesmead and the districts around it, SE28, SE2 and DA18, all sit inside our working area. So does the ground between Thamesmead and Abbey Wood (1 mile), and on towards Plumstead (2 miles). When a fitting team is booked, their travel is already in the quoted price, so it does not turn up as a surprise line on the final bill.

What we check on a supplied unit

A damaged delivery is a frequent snag on fit-only work. Before the day, unpack a pitched roof window, photograph it, and tell the seller about any cracks or scuffs, because claims are much easier made early. We will also ask for the model or a link, so we can read the maker's instructions and check the opening size and the flashing kit it expects. If everything lines up, we fit it. If not, we explain what needs changing first.

Included in the work

  • Underlay collar or membrane dressed and taped around the frame
  • Tiles or slates cut and refitted neatly around the flashing
  • Inside lining fitted and left ready for decoration
  • Side slopes and neighbours — We check which slope the window is going on before you commit.
  • Scaffold or not — We look at the roof height and the window position to see whether scaffolding is needed.

How a fitting day runs

Fitting days start with a look at the sky. If rain is due, the order of work changes so the roof is never left open to it. A typical day for a pitched roof window runs like this: set up access, protect the room, open up the roof or prepare the existing kerb or frame, check sizes, fix, seal, then finish inside. On jobs that take more than a day, the opening is weather-sealed overnight. The last hour goes on tidying, waste removal and a walk-round with you.

Planning and building rules in England

In England, a new rooflight opening generally needs building regulations approval because the roof structure is altered and the glazing must meet energy rules: 2.2 W/m²K for a rooflight in an existing home, or 1.4 W/m²K (or WER Band B) for a roof window. Planning is often not needed on a house: permitted development covers rooflights that stand no more than 0.15 m proud of the roof slope and sit below the highest part of the roof. Flats, listed buildings and areas with an Article 4 direction are different, so we check your address first.

Getting a price from photos

Start with your phone. Take a picture of the roof where the unit goes or already sits, then one from inside looking up. Measure what you can, even roughly. Tell us what the roof is covered with and how a fitter would reach it: ladder, garden access or scaffold. Bought it already? Send the link or spec. Add your full postcode, for example in SE28, and we can price it.

Common questions in Thamesmead

Do I need planning permission for a rooflight in Thamesmead?

Often not. Many rooflights fall under permitted development, provided they do not project beyond the national limit and meet the other conditions that apply in England. Conservation areas, listed buildings and some flats are different and may need consent. Because the rules depend on the property, we confirm what is likely to apply at your address and point you to the planning authority where an application is needed.

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.

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.

For a free, no-obligation quote in Thamesmead, use the form or call us with the details of your roof.

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

Roof windows in Thamesmead

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

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