Ventilation for new builds, extensions and lofts in West Yorkshire

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.

If you are anywhere in West Yorkshire, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Wakefield, Halifax, Dewsbury, Morley and Keighley.

New builds & extensions in West Yorkshire at a glance

Area: West Yorkshire
Towns listed: 38, largest Leeds
Postcode districts: LS7, WF13, WF15, BD15, BD16 and LS25
Price region: Yorkshire
Survey: Free survey (UK mainland)

What the work involves

For new dwellings in England, Approved Document F sets whole-home ventilation rates and requires mechanical systems to be commissioned and the results given to building control. 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.

Commissioning only

Testing and paperwork for systems installed by others.

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.

Guide prices in West Yorkshire

Ventilation for new builds, extensions and lofts guide prices in West Yorkshire
Work	Guide price
MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home)	£4,650–£7,450 inc VAT
Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan)	£325–£550 inc VAT
Airflow testing and commissioning sheet for extract fans (up to 6 fans) (per home)	£135–£275 inc VAT
MVHR or MEV commissioning test, every terminal measured and recorded (per system)	£230–£370 inc VAT

These ranges use our Yorkshire rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.

Signs it is time to call us

You are adding a bathroom or kitchen in an extension or loft
You are insulating and re-windowing an existing home
A self-build with an airtightness target

Rules in England

English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.

How the job runs

Drawings
Design
First fix
Second fix
Commission

Towns we cover in West Yorkshire

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

Is the survey free in West Yorkshire?

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.

When should MVHR be fitted in a new build?

MVHR ducts should go in at first fix, after the structure and before plasterboard. Planning it at design stage avoids clashes with joists and steels.

Who signs off the ventilation commissioning?

The installer measures the airflows and completes a commissioning sheet, which goes to building control; for new dwellings in England that is expected within five days of completion of the commissioning.

Which rules apply to ventilation in West Yorkshire?

In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.

Which towns in West Yorkshire do you cover?

All of West Yorkshire, including Wakefield, Halifax, Dewsbury, Morley and Keighley. If your town is not listed, send the postcode and we will confirm.