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RooflightInstallers.co.uk
Finchley · N3 · Greater London

Smoke vent rooflight installation in Finchley

Our guide price for smoke vent rooflight installation starts from £3,595, and the real figure for your roof in Finchley depends on a handful of things: the size and type of smoke vent rooflight, 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 £3,595 · Supply & fit; controls and commissioning by a smoke-control specialist

Finchley guide prices

Vent swap

£3,595 – £6,595including VAT at 20%

Like-for-like certified vent and actuator, connected to the existing controls and commissioned by a smoke-control specialist

Vent with new controls

£5,745 – £9,595including VAT at 20%

Vent plus new control panel and detection, commissioned by a smoke-control specialist

Multiple vents

£9,595 – £17,995including VAT at 20%

Several stairwells or larger systems, priced from a survey

Guide ranges for supply & fit; controls and commissioning by a smoke-control specialist. 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 Finchley we cover

Our fitters come to you. For Finchley that covers N3, N12 and N2, plus nearby Golders Green and Friern Barnet. We do not keep a yard or showroom in the area, and you do not need to visit one. The survey happens at your property or, for fit-only work, from the photos you send. Dates follow fitter availability, which we confirm when you accept the quote.

What the job includes

  • Old vent removed with the stairwell kept protected below
  • Existing vent, actuator and upstand surveyed with the specialist
  • Controls, detection and wiring handled by the smoke-control specialist
  • Certified as a system — We only fit smoke vents that are certified to BS EN 12101-2.
  • Free area at the stair head — We check the free area the vent must provide before choosing a replacement.

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 smoke vent rooflight, seal it and finish the inside. Packaging and any old unit leave with them unless the quote says otherwise.

Planning, building control and Finchley

A replacement smoke vent in England has to keep the free area and performance the building's fire strategy relies on, using a vent certified to BS EN 12101-2 with its actuator and backup power. We fit the vent and do the roof work; a smoke-control specialist connects and commissions the controls, and we confirm whether building control needs to be notified.

Before you get in touch

Each detail you send takes a question off our list. Photos inside and out show the opening and the ceiling. Rough measurements tell us the unit size. The roof covering tells us how it will be sealed in. Access notes tell us whether a tower or scaffold is needed. A product link, if you have one, lets us check it against the opening. Your postcode, N3 or nearby, confirms travel.

Common questions in Finchley

Who is responsible for the smoke-control system?

The building's responsible person, duty holder or managing agent, depending on the nation, is responsible for keeping fire safety systems working. Our part is the rooflight and roof work; the controls, detection and commissioning are handled by a smoke-control specialist, and the quote says who does what.

What if my roof opening is the wrong size for the smoke vent rooflight?

We find out before the fitting day, not on it. If the opening is slightly out, it can usually be adjusted by trimming or by packing out the upstand. If it is a long way off, the choice is between altering the opening and changing the unit. Bear in mind that rooflights are often sold by builder's opening size rather than external size, so check which one your measurement refers to.

What upstand height and roof pitch does smoke vent rooflight fitting need?

It depends on the product. Manufacturers usually specify a minimum upstand height above the finished roof surface, and a minimum pitch on the glass so rain runs off. We follow the maker's figures for your unit rather than a rule of thumb. If your existing kerb or roof falls short, we explain the options, such as raising the upstand or choosing a unit with built-in pitch.

Ask for a quote for your Finchley 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

Smoke vents (AOV) in Finchley

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

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