Airflow testing and commissioning in South Yorkshire

Airflow testing measures how much air each fan or valve actually moves, using a calibrated flow hood, and records it against the required rates. It is how you prove a ventilation system works, and for new homes it is part of the building regulations.

We carry out airflow testing and commissioning across South Yorkshire, including Rotherham, Doncaster, Barnsley, Bentley and Burngreave. Prices use Yorkshire rates. This is a charged visit. We confirm the cost in writing before we book it.

Airflow testing in South Yorkshire at a glance

Area: South Yorkshire
Towns listed: 27, largest Sheffield
Postcode districts: S64, DN12, S64, S70, S73 and S63
Price region: Yorkshire
Survey: Charged visit, price agreed first

What the work involves

Approved Document F expects mechanical ventilation in new dwellings to be tested with a flow device that has been calibrated within the last 12 months, and the results recorded on a commissioning sheet. The person commissioning should be registered with a competent person scheme for ventilation or show evidence of competence; we tell you who will sign your sheet when we quote. Testing is also useful outside new builds: it shows landlords and homeowners whether existing fans meet the rates, and it is the first step in rebalancing an MVHR system that no longer feels right.

Remedial advice

If a fan fails, we explain why and quote the fix.

Extract fan tests

Each fan measured and compared with the Part F rate for the room.

MEV and dMEV commissioning

Trickle and boost rates measured and set.

Guide prices in South Yorkshire

Airflow testing and commissioning guide prices in South Yorkshire
Work	Guide price
Airflow testing and commissioning sheet for extract fans (up to 6 fans) (per home)	£135–£275 inc VAT
MVHR or MEV commissioning test, every terminal measured and recorded (per system)	£230–£370 inc VAT
Rebalance and recommission an existing MVHR system (per system)	£230–£420 inc VAT

These ranges use our Yorkshire rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.

When to get it looked at

After rebalancing or extending a system
Building control needs a commissioning sheet
You are selling a new build and the paperwork is missing

Rules in England

English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.

How the job runs

Book
Measure
Adjust
Record
Advise

Towns we cover in South Yorkshire

Questions about airflow testing and commissioning in South Yorkshire

Which rules apply to ventilation in South Yorkshire?

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 does ventilation airflow testing cost?

Testing up to six extract fans costs £145 to £295 including VAT, and commissioning a full MVHR or MEV system £245 to £395.

What equipment is used?

A flow hood that fits over the fan or valve and measures airflow in litres a second, calibrated within the last 12 months.

Which towns in South Yorkshire do you cover?

All of South Yorkshire, including Rotherham, Doncaster, Barnsley, Bentley and Burngreave. If your town is not listed, send the postcode and we will confirm.

Are prices different in South Yorkshire?

Our guide prices are adjusted by region. In South Yorkshire we use Yorkshire rates, so airflow testing and commissioning sheet for extract fans (up to 6 fans) is typically £135 to £275 inc VAT per home.