Seven Sisters, Greater London
Commercial ventilation design and installation in Seven Sisters
Supply and extract with heat recovery for offices, shops, clinics and fit-outs. Covering Seven Sisters and N4, N15 and N16.
- From £9,550 + VAT per system
- Free survey

We design and install supply and extract ventilation for Seven Sisters offices, clinics, salons and shops.
For commercial ventilation design and installation in Seven Sisters, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
Commercial ventilation in Seven Sisters at a glance
- Town
- Seven Sisters, Greater London
- Postcode districts
- N4, N15 and N16
- Nearby
- St Ann's (1 mile), Stamford Hill (1 mile) and Harringay (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
Commercial ventilation for Seven Sisters premises
Employers must make sure every enclosed workplace is ventilated by a sufficient quantity of fresh or purified air under the Workplace (Health, Safety and Welfare) Regulations 1992. In practice, designers work to rates such as 10 litres a second per person for offices, taken from Approved Document F and CIBSE guidance, and adjust for meeting rooms, kitchens and toilets.
Heat recovery supply and extract
One or more units with ductwork to diffusers, sized for occupancy.
Toilet and kitchenette extract
Dedicated extract for welfare areas.
Guide prices in Seven Sisters
| Work | Guide price |
|---|---|
| Small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) (per system) | £9,550–£20,350 + VAT |
| Office supply and extract ventilation with heat recovery, during a fit-out (per m² of floor) | £65–£150 + VAT |
These ranges use our London rates. Prices exclude VAT. You get a fixed written price before any work is booked.
Common reasons people call
- Windows the only source of fresh air
- Old units that are noisy, inefficient or failing
- Stuffy meeting rooms and afternoon drowsiness
Rules that apply in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). Workplaces must also be ventilated with a sufficient quantity of fresh or purified air under the Workplace (Health, Safety and Welfare) Regulations 1992.
Questions from Seven Sisters
Do you cover Seven Sisters and nearby?
Yes. We cover Seven Sisters and nearby places including St Ann's, Stamford Hill, Harringay and Stroud Green. Send your postcode and we will confirm.
Can the system cool as well?
Ventilation alone moves air; it does not cool much. Where cooling is needed we can coordinate with the air conditioning installer.
How much does commercial ventilation cost?
A small office or shop with a single heat recovery unit typically costs £7,950 to £16,950 excluding VAT. Larger fit-outs are often priced at around £55 to £125 per square metre of floor, depending on design and ceiling access.
What is the price of commercial ventilation in Seven Sisters?
Guide prices for Seven Sisters use London rates: small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) is typically £9,550 to £20,350 + VAT per system. We confirm a fixed price in writing before any work starts.
Is the survey free in Seven Sisters?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
Book a free site survey in Seven Sisters and send floor plans if you have them.
Commercial ventilation near Seven Sisters
More services in Seven Sisters
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.