Commercial heat recovery units in Hertfordshire

A commercial heat recovery unit supplies fresh air and extracts stale air through a heat exchanger, so the energy already spent heating or cooling the building is passed to the incoming air instead of being thrown away. It is the standard way to ventilate offices, schools, gyms and clinics efficiently.

If you are anywhere in Hertfordshire, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Hatfield, Bishop's Stortford, Watford, Hemel Hempstead and Stevenage.

Commercial heat recovery in Hertfordshire at a glance

Area: Hertfordshire
Towns listed: 32, largest Watford
Postcode districts: WD2, WD24, AL3, AL4, WD1 and WD19
Price region: East of England
Survey: Free survey (UK mainland)

What commercial heat recovery units involves

Units use plate exchangers (no mixing of air streams) or rotary wheels (higher efficiency, small transfer of moisture). The right choice depends on the use: a gym or swimming area has very different moisture loads to an office. We size units to the building's occupancy and fresh-air needs, plan the duct connections and controls, and commission the system so the design airflows are actually achieved.

Demand control

CO2-led control for variable occupancy.

Replacement of old ventilation

Extract-only systems upgraded to balanced heat recovery.

Ceiling-void units

Compact horizontal units for offices and shops.

Guide prices in Hertfordshire

Commercial heat recovery units guide prices in Hertfordshire
Work	Guide price
Commercial heat recovery unit, supplied, installed and commissioned (per unit)	£7,300–£26,200 + VAT
Small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) (per system)	£8,350–£17,800 + 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.

Common reasons people call

Opening windows to get fresh air in winter
High heating bills in well-occupied buildings
Extract-only systems pulling in cold air

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

Survey
Select
Install
Commission
Hand over

Towns we cover in Hertfordshire

Questions about commercial heat recovery units in Hertfordshire

Is the survey free in Hertfordshire?

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.

Do they need maintenance?

Filters, fans and exchangers need regular servicing, typically twice a year.

How much does a commercial heat recovery unit cost?

A commercial heat recovery unit typically costs £6,950 to £24,950 excluding VAT supplied, installed and commissioned, depending on airflow, unit type and access.

Which rules apply to ventilation in Hertfordshire?

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.

Which towns in Hertfordshire do you cover?

All of Hertfordshire, including Hatfield, Bishop's Stortford, Watford, Hemel Hempstead and Stevenage. If your town is not listed, send the postcode and we will confirm.