Guide prices
Vent swap
Like-for-like certified vent and actuator, connected to the existing controls and commissioned by a smoke-control specialist
Vent with new controls
Vent plus new control panel and detection, commissioned by a smoke-control specialist
Multiple vents
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.
Fitting across Isleworth and nearby
Looking at a property near Isleworth but not quite in it? We work across TW7, TW3 and TW5 and outwards to Hounslow, Heston and Richmond. 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 Isleworth.
On the day, we cover
- Upstand checked, adapted or rebuilt to the vent maker's drawing
- Certified vent and actuator matched to the opening and controls
- New vent fitted, sealed and weathered into the roof
- Free area at the stair head — We check the free area the vent must provide before choosing a replacement.
- Fire rules near escape routes — We check the roof around the vent for fire rules that affect it.
A typical installation day
Arrive and agree the plan. Sheet the floor and furniture. Set up the ladder, tower or scaffold. Check the opening, the upstand or flashing, and the unit against the paperwork. Fix and pack a smoke vent rooflight level. Seal it into the roof. Line the reveal or fit the ceiling trim. Clean the glass, clear the waste, and talk you through it. That is the shape of most fitting days, and for this type of job it usually takes one to two days per vent.
Planning and building rules in England
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.
What to send for a quick quote
What we cannot see, we have to guess, and guesses make quotes wider. So the more you send, the tighter the price. Useful: shots from the roof or garden, shots from the room underneath, a rough width and length, the roof finish, any access problems, and the product page if you have already ordered. Add the property postcode around TW7 and we will come back with a quote or a survey date.
Common questions in Isleworth
Do you cover Isleworth?
Yes. Fitters travel to addresses in Isleworth and the surrounding districts, including TW7. 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.
Can you fit a rooflight in winter or when it is raining?
Yes, within limits. Cold is less of a problem than wet, because membranes, primers and sealants need a dry surface to bond. We plan fitting days around the forecast and may move a date if heavy rain is due. If the roof has to be opened up, it is not left overnight without a temporary weather seal, so the room below stays dry while the work is finished.
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.
Send a few photos and your TW7 postcode, and we will put together a written quote for the job.
