Commercial ventilation design and installation in Lancashire

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

If you are anywhere in Lancashire, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Rossendale, Morecambe, Lancaster, Lytham St Annes and Preston.

Commercial ventilation in Lancashire at a glance

Area: Lancashire
Towns listed: 29, largest Preston
Postcode districts: FY2, FY3, LA1, LA3, BB4 and BB5
Price region: North West
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 Lancashire

Commercial ventilation design and installation guide prices in Lancashire
Work	Guide price
Small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) (per system)	£7,550–£16,100 + VAT
Office supply and extract ventilation with heat recovery, during a fit-out (per m² of floor)	£50–£120 + VAT

These ranges use our North West 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). Workplaces must also be ventilated with a sufficient quantity of fresh or purified air under the Workplace (Health, Safety and Welfare) Regulations 1992.

How the job runs

Site survey
Design
Install
Commission
Hand over

Towns we cover in Lancashire

Questions about commercial ventilation design and installation in Lancashire

Are prices different in Lancashire?

Our guide prices are adjusted by region. In Lancashire we use North West rates, so small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) is typically £7,550 to £16,100 + VAT per system.

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.

Is the survey free in Lancashire?

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.

Which rules apply to ventilation in Lancashire?

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.

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