Commercial ventilation design and installation in Crawley

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

Whether the property is in the middle of Crawley 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 Crawley at a glance

Town: Crawley, West Sussex
Postcode districts: RH6, RH10 and RH11
Nearby: Broadfield (2 miles), Horley (4 miles) and Horsham (7 miles)
Price region: South East
Survey: Free survey (UK mainland)

Commercial ventilation for Crawley 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.

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.

Guide prices in Crawley

Commercial ventilation design and installation guide prices in Crawley
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

South East rates shown. Prices exclude VAT. The fixed price is confirmed in writing after we have seen the job.

When to get it looked at

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

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.

Questions from Crawley

Is the survey free in Crawley?

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 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.

How do I get a price for commercial ventilation in Crawley?

Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.

What area around Crawley do you work in?

All of West Sussex. Near Crawley that includes Broadfield, Horley, Horsham and East Grinstead.

Get in touch with your Crawley postcode and floor area for a first guide price.