Commercial ventilation in Blackheath
A free survey, a clear specification and a fixed price for commercial ventilation in Blackheath.
- Free site survey and fixed written quote
- Equipment, positions and price set out in writing
- Work planned around your opening hours
How much does commercial ventilation cost in Blackheath?
Our guide range in Blackheath is £3,795–£31,500 per system before VAT; a typical job (supply and extract for a 150 m² office) is £8,895–£20,995 plus VAT. Your exact price is fixed in writing once we have surveyed.
Commercial ventilation brings outdoor air into a building and removes stale air, using fans and ductwork to supply and extract air at the rates needed for the number of people and the activity.
Working in Blackheath
In Blackheath, commercial premises range from street-level shops and restaurants to offices in converted and modern buildings, many with managing agents and landlord consents to work through.
That includes premises in B65, CO2, GU4, IP19 and SE3 and the surrounding districts. Nearby, we also cover Greenwich (about 2 km), Catford (about 3 km) and Eltham (about 3 km). We plan work in Blackheath so the noisy parts happen when they disturb your business least.
What the job covers
- Fresh-air rate calculation for each space
- Supply and extract fans, ductwork and grilles
- Filters, attenuators and fire dampers where required
- Air-flow measurement and balancing
- Commissioning records
Local guide prices for Blackheath
These guide prices are adjusted for London, where labour and access costs run about 28% above the UK guide.
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Toilet or kitchenette extract | £635–£1,850 | £762–£2,220 | per room |
| Supply and extract system, small premises | £3,795–£12,750 | £4,554–£15,300 | per system |
| CO2 demand control | £505–£1,595 | £606–£1,914 | per zone |
| Ductwork | £85–£245 | £102–£294 | per metre |
Ex VAT. Larger systems and fire-rated ductwork are priced from a full design.
How we work in Blackheath
Assess
We work out how many people use each space and the fresh-air rate needed. For sites in Blackheath we confirm access and parking beforehand.
Design
Fan, duct and grille sizes are designed for air flow, noise and energy use.
Install
Ductwork and fans are installed and connected to controls.
Balance
Air flows are measured and balanced to the design.
What to think about in Blackheath
Fire
Ducts passing through fire-rated walls or floors need fire dampers.
Access and parking
Town-centre jobs in Blackheath often come down to access — loading restrictions, parking for the van and getting equipment onto a roof. We check this at survey and plan deliveries around it.
Heat recovery
Bringing in cold air in winter costs energy. Heat recovery units reclaim much of it.
Working hours
Most Blackheath businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
Who we work with in Blackheath
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
- Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
- Restaurants and cafés: dining rooms that stay comfortable next to a hot kitchen and a busy service.
- Offices: zoned cooling and heating for open-plan floors, meeting rooms and comms rooms.
Compliance in England: refrigerant work falls under GB F-gas rules, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).
Common questions from businesses in Blackheath
How much does commercial ventilation cost in Blackheath?
Guide prices in Blackheath run from about £3,795 to £31,500 per system, plus VAT. A typical job (supply and extract for a 150 m² office) costs £8,895–£20,995 plus VAT. We fix the price in writing after a free survey.
Do you also cover Greenwich, Catford and Eltham?
Yes. Alongside Blackheath, we also cover Greenwich, Catford and Eltham. Each has its own page with local guide prices.
Which postcodes do you cover in Blackheath?
All of them, including B65, CO2, GU4 and IP19. Give us your postcode when you enquire and we will confirm the visit details.
Does air conditioning provide fresh air?
No. Most air conditioning recirculates room air. Fresh air needs a ventilation system or openable windows.
How much fresh air does an office need?
Guidance for offices is typically around 10 litres per second per person, with more for rooms with higher pollutant loads. We calculate it per space.
Get a guide price for Blackheath
Free survey and fixed written quote. We reply with a guide price or to book the survey.