Commercial ventilation design and installation
Supply and extract with heat recovery for offices, shops, clinics and fit-outs.
From £7,950 + VAT per system
Guide
How much fresh air does an office need?
Office fresh air
A common design rate for offices is 10 litres a second of fresh air per person, used in Approved Document F and CIBSE guidance, and every enclosed workplace must have sufficient fresh or purified air under the Workplace Regulations 1992.
What does the law require?
The Workplace (Health, Safety and Welfare) Regulations 1992 require effective and suitable ventilation in every enclosed workplace.
Why do meeting rooms get stuffy?
Occupancy is high for the floor area, so CO2 and heat rise quickly unless the room has its own supply and extract.
How can I tell if ventilation is enough?
CO2 monitoring is a practical indicator: levels that climb steadily through the day point to under-ventilation.
Is opening windows enough?
Sometimes in summer, but in winter windows stay shut and fresh air drops, which is why mechanical ventilation with heat recovery is standard.
What does a fit-out need?
A design matched to the new layout and occupancy, with commissioning records at handover.
Sources
Related services
Indoor air quality surveys
CO2, humidity and particulates logged for a week, with plain-English findings.
From £145 inc VAT per home
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