Ventilation for new builds, extensions and lofts in West Midlands

New homes, extensions and loft conversions need ventilation that meets the building regulations and is tested before sign-off. We design the system, install it at the right stage of the build, measure the airflows and provide the commissioning information building control asks for.

Every job in the West Midlands gets a written quote before it starts and a commissioning record when it finishes. We cover Birmingham, Coventry, Wolverhampton, Dudley and Walsall and the villages around them.

New builds & extensions in the West Midlands at a glance

Area: West Midlands
Towns listed: 32, largest Birmingham
Postcode districts: WS1, WS2, B90, B91, B72 and B73
Price region: West Midlands
Survey: Free survey (UK mainland)

What the work involves

Extensions and loft conversions have their own triggers: a new wet room needs extract, a new habitable room needs background ventilation or a connection to the ducted system, and energy-efficiency work can mean the existing home needs more ventilation too. We work for self-builders, small developers, builders and architects. Fitting ducts at first fix is far cheaper than retrofitting, so it pays to involve us before the ceilings go up.

MVHR for new builds

Design, first fix, second fix and commissioning for whole-home heat recovery.

MEV or dMEV

Continuous extract systems where MVHR is not specified.

Extensions and lofts

Extract for new bathrooms and kitchens, background ventilation for new rooms.

Guide prices in the West Midlands

Ventilation for new builds, extensions and lofts guide prices in the West Midlands
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

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

A self-build with an airtightness target
Ceilings are about to be boarded
Building control has asked for a ventilation strategy or commissioning sheet

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

Drawings
Design
First fix
Second fix
Commission

Towns we cover in the West Midlands

Questions about ventilation for new builds, extensions and lofts in the West Midlands

Which towns in the West Midlands do you cover?

All of the West Midlands, including Birmingham, Coventry, Wolverhampton, Dudley and Walsall. If your town is not listed, send the postcode and we will confirm.

Can you just test a system someone else installed?

Yes. We can commission and test systems installed by others, and report any issues we find.

Do loft conversions need ventilation?

Yes. New bedrooms need background ventilation, and a new en-suite or bathroom needs extract to outside.

Are prices different in the West Midlands?

Our guide prices are adjusted by region. In the West Midlands we use West Midlands rates, so MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms is typically £4,950 to £7,950 inc VAT per home.

Is the survey free in the West Midlands?

For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.

Ventilation for new builds, extensions and lofts in the West Midlands