Airflow testing and commissioning in North 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.

North Yorkshire has every kind of building, from old terraces to new estates and business parks, and every job is designed around the building in front of us, not a standard kit.

Airflow testing in North Yorkshire at a glance

Area: North Yorkshire
Towns listed: 18, largest York
Postcode districts: TS11, TS12, DL6, DL7, HG4 and HG1
Price region: Yorkshire
Survey: Charged visit, price agreed first

How we do it

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 North Yorkshire

Airflow testing and commissioning guide prices in North 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

Yorkshire rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.

Common reasons people call

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. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.

How the job runs

Book
Measure
Adjust
Record
Advise

Towns we cover in North Yorkshire

Questions about airflow testing and commissioning in North Yorkshire

Which rules apply to ventilation in North 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.

Can you test commercial systems?

Yes. We measure and balance commercial supply and extract systems too.

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.

Which towns in North Yorkshire do you cover?

All of North Yorkshire, including Scarborough, Redcar, Selby, Thornaby-on-Tees and Yarm. If your town is not listed, send the postcode and we will confirm.

Are prices different in North Yorkshire?

Our guide prices are adjusted by region. In North 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.