Ventilation for new builds, extensions and lofts
Part F designs, MVHR or extract installs and the commissioning paperwork building control needs.
From £4,950 inc VAT per home
New builds, extensions and testing
Part F ventilation designs for new homes, extensions and loft conversions, plus airflow testing and commissioning.
Part F ventilation designs for new homes, extensions and loft conversions, plus airflow testing and commissioning.
Airflow testing and commissioning
Calibrated flow-hood testing and commissioning sheets for fans, MEV and MVHR.
From £145 inc VAT per home
Guide prices
| Work | Guide price |
|---|---|
| MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home) | £4,950–£7,950 inc VAT |
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £345–£595 inc VAT |
| 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 |
Guide prices using West Midlands (our baseline) rates. Home prices include VAT at 20%; business prices exclude VAT. A guide price is not a quote: we confirm a fixed price in writing first.
Questions people ask
Does an extension need extractor fans?
A new kitchen, bathroom, utility room or WC in an extension needs mechanical extract to meet Approved Document F in England, and new habitable rooms need background ventilation or a connection to a ducted system.
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.
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.