Commercial ventilation design and installation in Harpenden

Businesses in Harpenden 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 Harpenden 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 Harpenden at a glance

Town: Harpenden, Hertfordshire
Postcode districts: AL3, AL4 and AL5
Nearby: St Albans (5 miles), Luton (5 miles) and Codicote (6 miles)
Price region: East of England
Survey: Free survey (UK mainland)

Commercial ventilation for Harpenden 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.

Toilet and kitchenette extract

Dedicated extract for welfare areas.

Demand control

CO2 or occupancy sensors that slow the system when rooms are empty.

Guide prices in Harpenden

Commercial ventilation design and installation guide prices in Harpenden
Work	Guide price
Small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) (per system)	£8,350–£17,800 + VAT
Office supply and extract ventilation with heat recovery, during a fit-out (per m² of floor)	£60–£130 + VAT

These ranges use our East of England rates. Prices exclude VAT. You get a fixed written price before any work is booked.

When to get it looked at

A fit-out or change of layout
A change of use that needs a new ventilation design
Windows the only source of fresh air

Rules that apply in England

English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. Workplaces must also be ventilated with a sufficient quantity of fresh or purified air under the Workplace (Health, Safety and Welfare) Regulations 1992.

Questions from Harpenden

Is the survey free in Harpenden?

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.

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.

Can you work as a subcontractor on a fit-out?

Yes. We can install to a main contractor's programme and consultants' drawings, and supply commissioning records for handover.

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

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 Harpenden do you work in?

All of Hertfordshire. Near Harpenden that includes St Albans, Luton, Codicote and Hemel Hempstead.

Call us to arrange a Harpenden survey at a time that suits your business.