Guide prices in Harpenden
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 Harpenden and nearby
Harpenden and the districts around it, AL5, AL3 and AL4, all sit inside our working area. So does the ground between Harpenden and St Albans (5 miles), and on towards Luton (5 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.
Included in the work
- Upstand checked, adapted or rebuilt to the vent maker's drawing
- Controls, detection and wiring handled by the smoke-control specialist
- 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.
- Upstand and weathering — We check the upstand suits the new vent and that the roof around it is sound.
What happens on the day
Protection comes before tools. Floors, furniture and stairs get covered, and the ceiling below the opening is sheeted to catch dust. Up top, the fitters confirm the opening is square and the upstand or flashing suits what the maker specifies. Fixing follows, then weather-sealing into the membrane, felt or tiles. Only once the roof is tight do they turn to the internal reveal. Time on site for a smoke vent rooflight: one to two days per vent, weather permitting.
Do you need permission in Harpenden?
In England, smoke vents for common stairs must be certified to BS EN 12101-2, provide the free area the fire strategy requires (Approved Document B calls for at least 1 m² at the top of a common stair), and have backup power. Smoke vents have their own energy limit, commonly 3.5 W/m²K. Controls and commissioning are handled by a smoke-control specialist, and building control is involved where the system changes.
Getting a price from photos
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 AL5 and we will come back with a quote or a survey date.
Common questions in Harpenden
Do you cover Harpenden?
Yes. Fitters travel to addresses in Harpenden and the surrounding districts, including AL5. 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 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.
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.
For a free, no-obligation quote in Harpenden, use the form or call us with the details of your roof.
