St Helens, Merseyside
MVHR installation in St Helens
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering St Helens and WA9, WA10 and WA11.
- From £4,225 inc VAT per home
- Free survey
Fitting MVHR in a St Helens home starts with where the unit can live and how ducts reach each room.
We cover St Helens and the surrounding WA9, WA10 and WA11 postcodes as part of our work across Merseyside. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
MVHR in St Helens at a glance
- Town
- St Helens, Merseyside
- Postcode districts
- WA9, WA10 and WA11
- Nearby
- Haydock (2 miles), Rainhill (3 miles) and Whiston (3 miles)
- Price region
- North West
- Survey
- Free survey (UK mainland)
What the work involves
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.
Guide prices in St Helens
| Work | Guide price |
|---|---|
| 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 |
| Whole-home MVHR retrofit, 1 to 2 bedroom flat (per home) | £4,225–£6,600 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.
Signs it is time to call us
- Pollen or traffic pollution you want filtered out
- Condensation on windows every morning in winter
- Mould coming back in bedrooms or bathrooms after cleaning
Rules that apply 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.
Questions from St Helens
What area around St Helens do you work in?
All of Merseyside. Near St Helens that includes Haydock, Rainhill, Whiston and Prescot.
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.
Do you cover St Helens and nearby?
Yes. We cover St Helens and nearby places including Haydock, Rainhill, Whiston and Prescot. Send your postcode and we will confirm.
What is the price of MVHR in St Helens?
Guide prices for St Helens use North West rates: whole-home MVHR retrofit, 1 to 2 bedroom flat is typically £4,225 to £6,600 inc VAT per home. We confirm a fixed price in writing before any work starts.
Send us a floor plan or a few photos of the loft and we can give a first price for your St Helens home before we visit.
MVHR near St Helens
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Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.