Commercial ventilation design and installation in Gravesend

We can work as the ventilation subcontractor on Gravesend fit-outs.

Gravesend is about 124 miles from our base in Great Barr, Birmingham. We book Gravesend visits by appointment and confirm the date in writing. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.

Commercial ventilation in Gravesend at a glance

Town: Gravesend, Kent
Postcode districts: DA11, DA12 and RM18
Nearby: Tilbury (2 miles), Swanscombe (3 miles) and Grays (3 miles)
Price region: South East
Survey: Free survey (UK mainland)

How we approach commercial ventilation in Gravesend

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.

Guide prices in Gravesend

Commercial ventilation design and installation guide prices in Gravesend
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.

Common reasons people call

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 Gravesend

Do you cover Gravesend and nearby?

Yes. We cover Gravesend and nearby places including Tilbury, Swanscombe, Grays and Longfield. Send your postcode and we will confirm.

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.

What is the price of commercial ventilation in Gravesend?

Guide prices for Gravesend 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.

Is the survey free in Gravesend?

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.

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