MVHR installation in Merseyside

For homeowners in Merseyside, MVHR is usually part of a bigger job: new windows, insulation, a loft conversion or an extension.

Every job in Merseyside gets a written quote before it starts and a commissioning record when it finishes. We cover Huyton, Liverpool, Birkenhead, St Helens and Southport and the villages around them.

MVHR in Merseyside at a glance

Area: Merseyside
Towns listed: 38, largest Liverpool
Postcode districts: L21, CH42, CH62, L14, L27 and L10
Price region: North West
Survey: Free survey (UK mainland)

What the work involves

Insulated ducts carry extract air from the wet rooms and supply air to the habitable rooms. Inside the unit the two airflows pass each other across a heat exchanger without mixing, so the incoming fresh air picks up heat from the outgoing air. Filters on both sides keep pollen and dust out of the house and keep the exchanger clean.

Summer bypass and boost controls

Bypass lets cooler night air in without heat recovery; humidity or switch boost for showers and cooking.

Retrofit in an occupied home

Ducts routed through the loft and down through cupboards or boxed corners. Most semis are done in 3 to 5 days.

New build or full renovation

Ducts go in at first fix before plasterboard, which is the cheapest and neatest time to fit MVHR.

Guide prices in Merseyside

MVHR installation guide prices in Merseyside
Work	Guide price
Whole-home MVHR retrofit, 1 to 2 bedroom flat (per home)	£4,225–£6,600 inc VAT
Whole-home MVHR retrofit, 3 bedroom house (per home)	£6,150–£9,000 inc VAT
Whole-home MVHR retrofit, 4 to 5 bedroom house (per home)	£8,500–£13,250 inc VAT
MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home)	£4,700–£7,550 inc VAT

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

When to get it looked at

Mould coming back in bedrooms or bathrooms after cleaning
You are insulating, re-windowing or making the house more airtight
A new build or extension where the SAP or building control needs a ventilation system

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

Survey and room schedule
Design and airflow rates
First fix
Second fix and valves
Commission and hand over

Towns we cover in Merseyside

Questions about MVHR installation in Merseyside

Which rules apply to ventilation in Merseyside?

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.

How often does MVHR need servicing?

Filters usually need changing every 6 to 12 months, and a full service with a clean and airflow check once a year keeps the system efficient. Clogged filters are the most common reason MVHR stops working properly.

Can MVHR cool the house in summer?

MVHR is not air conditioning, but a summer bypass lets cooler night air in without warming it, which helps take the edge off hot rooms. For real cooling you would need a separate system.

Which towns in Merseyside do you cover?

All of Merseyside, including Huyton, Liverpool, Birkenhead, St Helens and Southport. If your town is not listed, send the postcode and we will confirm.

Are prices different in Merseyside?

Our guide prices are adjusted by region. In Merseyside we use North West rates, so whole-home MVHR retrofit, 1 to 2 bedroom flat is typically £4,225 to £6,600 inc VAT per home.

Send us a floor plan or a few photos of the loft and we can give a first price for your Merseyside home before we visit.