Commercial ventilation design and installation in Derbyshire

A change of use in Derbyshire often needs a fresh ventilation design, which we can provide.

Our team is based in Great Barr, Birmingham, and we work throughout Derbyshire, from Belper, Heanor, Derby, Chesterfield and Long Eaton. Surveys for new installations are free on the UK mainland, with a written quote afterwards.

Commercial ventilation in Derbyshire at a glance

Area: Derbyshire
Towns listed: 21, largest Derby
Postcode districts: DE5, DE55, S8, S17, DE5 and DE56
Price region: East Midlands
Survey: Free survey (UK mainland)

What the work 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.

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.

Demand control

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

Guide prices in Derbyshire

Commercial ventilation design and installation guide prices in Derbyshire
Work	Guide price
Small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) (per system)	£7,800–£16,600 + VAT
Office supply and extract ventilation with heat recovery, during a fit-out (per m² of floor)	£55–£125 + VAT

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

Signs it is time to call us

More staff than the system was designed for
A fit-out or change of layout
A change of use that needs a new ventilation design

Rules in England

In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). 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 Derbyshire

Questions about commercial ventilation design and installation in Derbyshire

Which rules apply to ventilation in Derbyshire?

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 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.

Which towns in Derbyshire do you cover?

All of Derbyshire, including Belper, Heanor, Derby, Chesterfield and Long Eaton. If your town is not listed, send the postcode and we will confirm.

Are prices different in Derbyshire?

Our guide prices are adjusted by region. In Derbyshire we use East Midlands rates, so small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) is typically £7,800 to £16,600 + VAT per system.

Send your Derbyshire drawings and occupancy numbers for a design and price.