Ashtead, Surrey
Commercial ventilation design and installation in Ashtead
Supply and extract with heat recovery for offices, shops, clinics and fit-outs. Covering Ashtead and KT18, KT21 and KT22.
- From £8,750 + VAT per system
- Free survey

Commercial ventilation in Ashtead is often part of an office or shop fit-out.
Whether the property is in the middle of Ashtead or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
Commercial ventilation in Ashtead at a glance
- Town
- Ashtead, Surrey
- Postcode districts
- KT18, KT21 and KT22
- Nearby
- Leatherhead (2 miles), Epsom (2 miles) and Ewell (4 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
Commercial ventilation for Ashtead 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.
Demand control
CO2 or occupancy sensors that slow the system when rooms are empty.
Design and build or install-only
We design it, or install to a consultant's drawings.
Guide prices in Ashtead
| Work | Guide price |
|---|---|
| Small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) (per system) | £8,750–£18,650 + VAT |
| Office supply and extract ventilation with heat recovery, during a fit-out (per m² of floor) | £60–£140 + VAT |
These ranges use our South East rates. Prices exclude VAT. You get a fixed written price before any work is booked.
Signs it is time to call us
- A change of use that needs a new ventilation design
- Windows the only source of fresh air
- Old units that are noisy, inefficient or failing
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). Employers have a separate duty under the Workplace Regulations 1992 to provide effective and suitable ventilation.
Questions from Ashtead
What area around Ashtead do you work in?
All of Surrey. Near Ashtead that includes Leatherhead, Epsom, Ewell and Chessington.
How much fresh air does an office need?
A common design rate for offices is 10 litres a second per person, used in Approved Document F and CIBSE guidance, with more for meeting rooms and areas with higher occupancy.
Is ventilation a legal requirement in the workplace?
Yes. The Workplace (Health, Safety and Welfare) Regulations 1992 require effective and suitable ventilation with a sufficient quantity of fresh or purified air in every enclosed workplace.
Do you cover Ashtead and nearby?
Yes. We cover Ashtead and nearby places including Leatherhead, Epsom, Ewell and Chessington. Send your postcode and we will confirm.
What is the price of commercial ventilation in Ashtead?
Guide prices for Ashtead use South East rates: small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) is typically £8,750 to £18,650 + VAT per system. We confirm a fixed price in writing before any work starts.
We provide commissioning records for every Ashtead handover.
Commercial ventilation near Ashtead
More services in Ashtead
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