Norris Green, Merseyside
Commercial ventilation design and installation in Norris Green
Supply and extract with heat recovery for offices, shops, clinics and fit-outs. Covering Norris Green and L9, L11 and L12.
- From £7,550 + VAT per system
- Free survey

We can work as the ventilation subcontractor on Norris Green fit-outs.
Norris Green is about 75 miles from our base in Great Barr, Birmingham. We book Norris Green 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 Norris Green at a glance
- Town
- Norris Green, Merseyside
- Postcode districts
- L9, L11 and L12
- Nearby
- Croxteth (1 mile), West Derby (1 mile) and Fazakerley (1 mile)
- Price region
- North West
- Survey
- Free survey (UK mainland)
How we approach commercial ventilation in Norris Green
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.
Demand control
CO2 or occupancy sensors that slow the system when rooms are empty.
Design and build or install-only
We design it, or install to a consultant's drawings.
Guide prices in Norris Green
| 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 |
North West 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. 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 Norris Green
What is the price of commercial ventilation in Norris Green?
Guide prices for Norris Green use North West rates: 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. We confirm a fixed price in writing before any work starts.
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.
Is the survey free in Norris Green?
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.
How do I get a price for commercial ventilation in Norris Green?
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.
Send your Norris Green drawings and occupancy numbers for a design and price.
Commercial ventilation near Norris Green
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.