New builds, extensions and testing, Mid Glamorgan
Airflow testing and commissioning in Mid Glamorgan
Calibrated flow-hood testing and commissioning sheets for fans, MEV and MVHR, across Mid Glamorgan.
- From £140 inc VAT per home
- Charged visit, price agreed first

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 Mid Glamorgan, including Aberdare, Maesteg, Rhondda, Tonypandy and Bridgend. Prices use Wales rates. Servicing, testing and repair visits are charged, and we tell you the cost before booking.
Airflow testing in Mid Glamorgan at a glance
- Area
- Mid Glamorgan, Wales
- Towns listed
- 14, largest Rhondda
- Postcode districts
- CF44, CF47, CF31, CF32, CF37 and CF38
- Price region
- Wales
- Survey
- Charged visit, price agreed first
What airflow testing and commissioning involves
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.
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.
MVHR commissioning
Supply and extract at every valve measured and balanced.
Guide prices in Mid Glamorgan
| Work | Guide price |
|---|---|
| Airflow testing and commissioning sheet for extract fans (up to 6 fans) (per home) | £140–£280 inc VAT |
| MVHR or MEV commissioning test, every terminal measured and recorded (per system) | £235–£375 inc VAT |
| Rebalance and recommission an existing MVHR system (per system) | £235–£425 inc VAT |
Guide prices using Wales rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Common reasons people call
- You are selling a new build and the paperwork is missing
- Fans seem weak and you want evidence
- After MVHR or MEV installation by another company
Rules in Wales
Wales has its own Part F ventilation guidance, published by the Welsh Government, and work is checked by building control. Extract rates and commissioning are checked against the Welsh guidance on every job.
How the job runs
- Book
- Measure
- Adjust
- Record
- Advise
Towns we cover in Mid Glamorgan
- Rhondda
- Tonypandy
- Bridgend
- Merthyr Tydfil
- Coity
- Pontypridd
- Aberdare
- Maesteg
- Porthcawl
- Llantrisant
- Pyle
- Treharris
- Mountain Ash
- Aberkenfig
Questions about airflow testing and commissioning in Mid Glamorgan
Which rules apply to ventilation in Mid Glamorgan?
In Wales, the Welsh Government's own Approved Document F (2022 edition) applies to ventilation in homes, with a new edition taking effect on 4 March 2027. Rented homes must be fit for human habitation under the Renting Homes (Wales) Act 2016, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
How long does it take?
Most homes take under an hour; a full MVHR balance can take two to three hours.
Can you test commercial systems?
Yes. We measure and balance commercial supply and extract systems too.
Which towns in Mid Glamorgan do you cover?
All of Mid Glamorgan, including Aberdare, Maesteg, Rhondda, Tonypandy and Bridgend. If your town is not listed, send the postcode and we will confirm.
Are prices different in Mid Glamorgan?
Our guide prices are adjusted by region. In Mid Glamorgan we use Wales rates, so airflow testing and commissioning sheet for extract fans (up to 6 fans) is typically £140 to £280 inc VAT per home.
Other services in Mid Glamorgan
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.