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RooflightInstallers.co.uk
Bromley · BR1 · Greater London

Roof lantern installation in Bromley

A rooflight is not finished when the roof is watertight. The inside matters too: the reveal or lining around the opening, the plaster, the trim where it meets the ceiling. Some installers leave that for somebody else. When we quote for roof lantern installation in Bromley, internal finishing is listed so you can see whether it is included or left for your decorator. That way a roof lantern looks right from the room below as well as from outside. We cover Bromley and properties throughout Greater London.

Guide price from £3,095 · Supply & fit

Bromley guide prices

About 1 × 2 m

£3,095 – £4,545including VAT at 20%

Aluminium lantern, double glazed, fitted and glazed on a ready upstand

About 1.5 × 3 m

£4,545 – £7,195including VAT at 20%

Mid-size lantern, solar-control glass options

2 × 4 m and over

£7,195 – £11,395including VAT at 20%

Large lanterns, lifting gear on the day

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 BR1 and neighbouring districts

If you also own a property or a business unit in Beckenham, Chislehurst or Catford, that is no problem. We can survey and quote both, and where it suits, line the fitting days up together. Every address is reached by fitters travelling to it from their current jobs, and BR1, BR2 and BR3 sit comfortably within that pattern.

Fit-only or supply and fit

A damaged delivery is a frequent snag on fit-only work. Before the day, unpack a roof lantern, 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 builder's opening size and the upstand height it expects. If everything lines up, we fit it. If not, we explain what needs changing first.

What the job includes

  • Glass lifted and laid into the frame by hand or with gear
  • Upstand checked for size, level and square before the kit is opened
  • Caps, end closures and ridge trims fitted and sealed
  • Level, not to a fall — We set or check the kerb level unless your lantern's maker says otherwise.
  • Lanterns and planning — We check whether your lantern can go in without a planning application.

What happens on the day

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 roof lantern 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.

Do you need permission in Bromley?

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.

Help us quote accurately

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, BR1 or a neighbouring district.

Common questions in Bromley

Do you cover Bromley?

Yes. Fitters travel to addresses in Bromley and the surrounding districts, including BR1. 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.

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.

Ask for a quote for your Bromley roof. Survey dates are offered based on fitter availability once you are happy with the price.

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

Roof lanterns in Bromley

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

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