Commercial ventilation design and installation in Surrey

Businesses in Surrey often need us when meeting rooms get stuffy or a new layout leaves areas with no fresh air.

Across Surrey the job is priced the same way wherever you are: what is fitted, how long it takes and how far we travel. Towns we cover include Redhill, Staines, Banstead, Leatherhead and Ewell.

Commercial ventilation in Surrey at a glance

Area: Surrey
Towns listed: 35, largest Woking
Postcode districts: TW16, GU21, GU22, GU1, GU2 and KT7
Price region: South East
Survey: Free survey (UK mainland)

What the work involves

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. Typical jobs are fit-outs and refurbishments: a new tenant needs ventilation to match a new layout, an old system cannot keep up with more staff, or a change of use needs a fresh design.

Design and build or install-only

We design it, or install to a consultant's drawings.

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 Surrey

Commercial ventilation design and installation guide prices in Surrey
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.

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 in England

English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. Employers have a separate duty under the Workplace Regulations 1992 to provide effective and suitable ventilation.

How the job runs

Site survey
Design
Install
Commission
Hand over

Towns we cover in Surrey

Questions about commercial ventilation design and installation in Surrey

Is the survey free in Surrey?

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.

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.

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.

Which rules apply to ventilation in Surrey?

In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.

Which towns in Surrey do you cover?

All of Surrey, including Redhill, Staines, Banstead, Leatherhead and Ewell. If your town is not listed, send the postcode and we will confirm.

Book a free site survey in Surrey and send floor plans if you have them.