Ventilation for new builds, extensions and lofts in Worcestershire

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.

Our team is based in Great Barr, Birmingham, and we work throughout Worcestershire, from Stourport-on-Severn, Worcester, Redditch, Kidderminster and Great Malvern. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.

New builds & extensions in Worcestershire at a glance

Area: Worcestershire
Towns listed: 8, largest Worcester
Postcode districts: WR13, B45, B60, WR10, WR11 and WR3
Price region: West Midlands
Survey: Free survey (UK mainland)

How we do it

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.

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.

Commissioning only

Testing and paperwork for systems installed by others.

Guide prices in Worcestershire

Ventilation for new builds, extensions and lofts guide prices in Worcestershire
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

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

When to get it looked at

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 Worcestershire

Questions about ventilation for new builds, extensions and lofts in Worcestershire

Is the survey free in Worcestershire?

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 Worcestershire?

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 Worcestershire do you cover?

All of Worcestershire, including Stourport-on-Severn, Worcester, Redditch, Kidderminster and Great Malvern. If your town is not listed, send the postcode and we will confirm.