Airflow testing and commissioning in Warwickshire

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.

Our team is based in Great Barr, Birmingham, and we work throughout Warwickshire, from Bedworth, Stratford-upon-Avon, Kenilworth, Hartshill and Nuneaton. This is a charged visit. We confirm the cost in writing before we book it.

Airflow testing in Warwickshire at a glance

Area: Warwickshire
Towns listed: 9, largest Nuneaton
Postcode districts: CV9, CV10, CV10, CV11, CV21 and CV22
Price region: West Midlands
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.

MEV and dMEV commissioning

Trickle and boost rates measured and set.

MVHR commissioning

Supply and extract at every valve measured and balanced.

Remedial advice

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

Guide prices in Warwickshire

Airflow testing and commissioning guide prices in Warwickshire
Work	Guide price
Airflow testing and commissioning sheet for extract fans (up to 6 fans) (per home)	£145–£295 inc VAT
MVHR or MEV commissioning test, every terminal measured and recorded (per system)	£245–£395 inc VAT
Rebalance and recommission an existing MVHR system (per system)	£245–£445 inc VAT

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

Common reasons people call

Building control needs a commissioning sheet
You are selling a new build and the paperwork is missing
Fans seem weak and you want evidence

Rules in England

In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). 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 Warwickshire

Questions about airflow testing and commissioning in Warwickshire

Which towns in Warwickshire do you cover?

All of Warwickshire, including Bedworth, Stratford-upon-Avon, Kenilworth, Hartshill and Nuneaton. If your town is not listed, send the postcode and we will confirm.

What happens if a fan fails the test?

We explain the likely cause, such as an undersized fan or a crushed duct, and quote to fix it. Many failures are cheap to put right.

Is testing a legal requirement?

For new dwellings in England, mechanical ventilation must be commissioned and the results given to building control. For existing homes it is good practice and useful evidence.

Are prices different in Warwickshire?

Our guide prices are adjusted by region. In Warwickshire we use West Midlands rates, so airflow testing and commissioning sheet for extract fans (up to 6 fans) is typically £145 to £295 inc VAT per home.

Is the survey free in Warwickshire?

This is a charged visit because it is servicing, testing or repair work. We tell you the cost before booking. Surveys for new installations on the UK mainland are free.