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Ventilation Contractors

New builds, extensions and testing, West Glamorgan

Airflow testing and commissioning in West Glamorgan

Calibrated flow-hood testing and commissioning sheets for fans, MEV and MVHR, across West Glamorgan.

  • From £140 inc VAT per home
  • Charged visit, price agreed first
Engineer holding a flow hood up to a ceiling valve

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.

Across West Glamorgan the job is priced the same way wherever you are: what is fitted, how long it takes and how far we travel. Towns we cover include Briton Ferry, Gorseinon, Clydach, Ystalyfera and Swansea.

Airflow testing in West Glamorgan at a glance

Area
West Glamorgan, Wales
Towns listed
6, largest Swansea
Postcode districts
SA6, SA7, SA8, SA9, SA1 and SA2
Price region
Wales
Survey
Charged visit, price agreed first

How we do it

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 West Glamorgan

Airflow testing and commissioning guide prices in West Glamorgan
WorkGuide 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

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

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. We design to the Welsh rates and commission mechanical systems so the results can be recorded.

How the job runs

  1. Book
  2. Measure
  3. Adjust
  4. Record
  5. Advise

Towns we cover in West Glamorgan

Questions about airflow testing and commissioning in West Glamorgan

Are prices different in West Glamorgan?

Our guide prices are adjusted by region. In West 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.

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.

Is the survey free in West Glamorgan?

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.

Which rules apply to ventilation in West 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.

Other services in West Glamorgan

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