Commercial ventilation in Farnham
A free survey, a clear specification and a fixed price for commercial ventilation in Farnham.
- 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 Farnham?
Budget roughly £3,395–£27,995 per system ex VAT in Farnham. For a typical job — supply and extract for a 150 m² office — expect £7,995–£18,995 plus VAT. The fixed price follows a free survey.
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.
Our coverage in Farnham
Farnham has a compact centre of shops, cafés and offices, with business units on its outskirts. Woking is about 20 km away.
That includes premises in CM23, DT11, GU9, HG5 and IP17 and the surrounding districts. Neighbouring towns we cover include Aldershot, Fleet and Farnborough. Buildings across Surrey range from converted period offices to modern units with deep ceiling voids, so we measure each site rather than relying on a standard package.
What is included
- Fresh-air rate calculation for each space
- Filters, attenuators and fire dampers where required
- Controls such as timers or CO2 sensors
- Air-flow measurement and balancing
- Commissioning records
Local guide prices for Farnham
These guide prices are adjusted for the South East, where labour and access costs run about 15% above the UK guide.
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Toilet or kitchenette extract | £570–£1,650 | £684–£1,980 | per room |
| Supply and extract system, small premises | £3,395–£11,450 | £4,074–£13,740 | per system |
| CO2 demand control | £455–£1,450 | £546–£1,740 | per zone |
| Ductwork | £75–£225 | £90–£270 | per metre |
Ex VAT. Larger systems and fire-rated ductwork are priced from a full design.
How it works in Farnham
Assess
We work out how many people use each space and the fresh-air rate needed. For sites in Farnham 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.
Things to check in Farnham
Building Regulations
New or altered ventilation in England must meet Approved Document F. We design to it and hand over the commissioning records.
Conservation areas
Historic streets and listed buildings in and around Farnham are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.
Fire
Ducts passing through fire-rated walls or floors need fire dampers.
Roof and height work
Flat roofs, high walls and atriums need the right access equipment and edge protection. We plan towers, MEWPs or scaffold before the job, not on the day.
Types of premises we cover in Farnham
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
- Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.
- Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
- Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
Two rules matter for most businesses in England: GB F-gas rules (leak checks from 5 tonnes CO2e) and the periodic energy inspection for more than 12 kW of air conditioning.
Questions about commercial ventilation in Farnham
How much does commercial ventilation cost in Farnham?
Guide prices in Farnham run from about £3,395 to £27,995 per system, plus VAT. A typical job (supply and extract for a 150 m² office) costs £7,995–£18,995 plus VAT. We fix the price in writing after a free survey.
Do you also cover Aldershot, Fleet and Farnborough?
Yes. Alongside Farnham, we also cover Aldershot, Fleet and Farnborough. Each has its own page with local guide prices.
Which postcodes do you cover in Farnham?
All of them, including CM23, DT11, GU9 and HG5. Give us your postcode when you enquire and we will confirm the visit details.
Do you install kitchen extraction?
Commercial kitchen canopies are a specialist area. We focus on general supply and extract, toilets and heat recovery, and can advise on kitchen requirements.
Does air conditioning provide fresh air?
No. Most air conditioning recirculates room air. Fresh air needs a ventilation system or openable windows.
Talk to us about your premises in Farnham
Free survey and fixed written quote. We reply with a guide price or to book the survey.