Commercial ventilation design and installation in Norfolk

For Norfolk landlords and occupiers, we can design the ventilation or install to your consultant's drawings.

Across Norfolk 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 Thetford, Bowthorpe, East Dereham, North Walsham and Downham Market.

Commercial ventilation in Norfolk at a glance

Area: Norfolk
Towns listed: 11, largest Norwich
Postcode districts: NR19, NR20, NR11, NR12, PE33 and PE38
Price region: East of England
Survey: Free survey (UK mainland)

What commercial ventilation design and installation involves

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. We can work directly for occupiers and landlords, or as a subcontractor to fit-out and building contractors.

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 Norfolk

Commercial ventilation design and installation guide prices in Norfolk
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

Guide prices using East of England rates. Prices exclude VAT. A guide price is not a quote: we confirm a fixed price in writing first.

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 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 Norfolk

Questions about commercial ventilation design and installation in Norfolk

Which rules apply to ventilation in Norfolk?

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.

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 towns in Norfolk do you cover?

All of Norfolk, including Thetford, Bowthorpe, East Dereham, North Walsham and Downham Market. If your town is not listed, send the postcode and we will confirm.

Are prices different in Norfolk?

Our guide prices are adjusted by region. In Norfolk we use East of England rates, so small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) is typically £8,350 to £17,800 + VAT per system.

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