Ventilation for new builds, extensions and lofts in Herefordshire

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 Herefordshire gets a written quote before it starts and a commissioning record when it finishes. We cover Hereford, Leominster and Ross-on-Wye and the villages around them.

New builds & extensions in Herefordshire at a glance

Area: Herefordshire
Towns listed: 3, largest Hereford
Postcode districts: HR9, HR1, HR2, HR6 and GL17
Price region: West Midlands
Survey: Free survey (UK mainland)

What ventilation for new builds, extensions and lofts 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.

Extensions and lofts

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

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.

Guide prices in Herefordshire

Ventilation for new builds, extensions and lofts guide prices in Herefordshire
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 rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.

Common reasons people call

You are insulating and re-windowing an existing home
A self-build with an airtightness target
Ceilings are about to be boarded

Rules in England

In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). 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 Herefordshire

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

Which rules apply to ventilation in Herefordshire?

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.

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.

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.

Which towns in Herefordshire do you cover?

All of Herefordshire, including Hereford, Leominster and Ross-on-Wye. If your town is not listed, send the postcode and we will confirm.

Are prices different in Herefordshire?

Our guide prices are adjusted by region. In Herefordshire 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.