New builds, extensions and testing, Clwyd
Airflow testing and commissioning in Clwyd
Calibrated flow-hood testing and commissioning sheets for fans, MEV and MVHR, across Clwyd.
- 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.
Our team is based in Great Barr, Birmingham, and we work throughout Clwyd, from Wrexham, Buckley, Deeside, Colwyn Bay and Flint. Servicing, testing and repair visits are charged, and we tell you the cost before booking.
Airflow testing in Clwyd at a glance
- Area
- Clwyd, Wales
- Towns listed
- 13, largest Wrexham
- Postcode districts
- LL28, LL30, LL18, LL22, CH5 and CH6
- 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 Clwyd
| 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.
When to get it looked at
- A landlord file needs proof of ventilation
- After rebalancing or extending a system
- Building control needs a commissioning sheet
Rules in Wales
Wales has its own Part F ventilation guidance, published by the Welsh Government, and work is checked by building control. We design to the Welsh rates and commission mechanical systems so the results can be recorded.
How the job runs
- Book
- Measure
- Adjust
- Record
- Advise
Towns we cover in Clwyd
- Wrexham
- Buckley
- Deeside
- Colwyn Bay
- Flint
- Rhyl
- Hawarden
- Rhosllannerchrugog
- Prestatyn
- Brymbo
- Llandudno
- Abergele
- Mold
Questions about airflow testing and commissioning in Clwyd
Is the survey free in Clwyd?
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.
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.
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.
Which rules apply to ventilation in Clwyd?
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.
Which towns in Clwyd do you cover?
All of Clwyd, including Wrexham, Buckley, Deeside, Colwyn Bay and Flint. If your town is not listed, send the postcode and we will confirm.
Other services in Clwyd
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