MVHR installation in Devon

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

Across Devon the job is priced the same way wherever you are: what is fitted, how long it takes and how far we travel. Towns we cover include Bideford, Plymouth, Exeter, Paignton and Torquay.

MVHR in Devon at a glance

Area: Devon
Towns listed: 21, largest Plymouth
Postcode districts: EX7, TQ12, PL18, PL19, EX9 and EX10
Price region: South West
Survey: Free survey (UK mainland)

What the work involves

MVHR works best in a home that is reasonably airtight: a new build, a deep retrofit with insulation and new windows, or a renovation where ceilings are coming down anyway. In a draughty older house it still ventilates well, but less of the heat-recovery benefit is felt because warm air escapes through gaps instead of the unit. We check this on survey and tell you plainly if a simpler system would do the job for less.

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.

Radial semi-rigid ducting

One small duct per valve from a manifold. Quieter and easier to balance than branched rigid duct in most homes.

Guide prices in Devon

MVHR installation guide prices in Devon
Work	Guide price
Whole-home MVHR retrofit, 1 to 2 bedroom flat (per home)	£4,625–£7,250 inc VAT
Whole-home MVHR retrofit, 3 bedroom house (per home)	£6,700–£9,850 inc VAT
Whole-home MVHR retrofit, 4 to 5 bedroom house (per home)	£9,300–£14,500 inc VAT
MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home)	£5,150–£8,250 inc VAT

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

Common reasons people call

Condensation on windows every morning in winter
Mould coming back in bedrooms or bathrooms after cleaning
You are insulating, re-windowing or making the house more airtight

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 Devon

Questions about MVHR installation in Devon

Is the survey free in Devon?

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.

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.

How much does MVHR cost to install?

A typical retrofit costs £6,450 to £9,450 including VAT for a three-bedroom house, and £4,950 to £7,950 when it goes in during a new build or full renovation. Flats start lower and large detached homes cost more because of the duct runs. We give a fixed price after the survey.

Which rules apply to ventilation in Devon?

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 Devon do you cover?

All of Devon, including Bideford, Plymouth, Exeter, Paignton and Torquay. If your town is not listed, send the postcode and we will confirm.

Call or message us with your postcode and the number of bedrooms and we will come back with a guide price for Devon.