Cosham, Hampshire
MVHR installation in Cosham
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover. Covering Cosham and PO2, PO3 and PO6.
- From £4,900 inc VAT per home
- Free survey
Fitting MVHR in a Cosham home starts with where the unit can live and how ducts reach each room.
We cover Cosham and the surrounding PO2, PO3 and PO6 postcodes as part of our work across Hampshire. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
MVHR in Cosham at a glance
- Town
- Cosham, Hampshire
- Postcode districts
- PO2, PO3 and PO6
- Nearby
- Waterlooville (3 miles), Havant (4 miles) and Portsmouth (4 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach MVHR in Cosham
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.
Radial semi-rigid ducting
One small duct per valve from a manifold. Quieter and easier to balance than branched rigid duct in most homes.
Summer bypass and boost controls
Bypass lets cooler night air in without heat recovery; humidity or switch boost for showers and cooking.
Guide prices in Cosham
| Work | Guide price |
|---|---|
| MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home) | £5,450–£8,750 inc VAT |
| Whole-home MVHR retrofit, 1 to 2 bedroom flat (per home) | £4,900–£7,650 inc VAT |
| Whole-home MVHR retrofit, 3 bedroom house (per home) | £7,100–£10,400 inc VAT |
South East rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- 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 that apply in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.
Questions from Cosham
What area around Cosham do you work in?
All of Hampshire. Near Cosham that includes Waterlooville, Havant, Portsmouth and Southsea.
Do I keep my trickle vents with MVHR?
No. Under Approved Document F, background ventilators should not be installed with a whole-home MVHR system, so we advise closing or removing them once the system is commissioned.
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.
Do you cover Cosham and nearby?
Yes. We cover Cosham and nearby places including Waterlooville, Havant, Portsmouth and Southsea. Send your postcode and we will confirm.
What is the price of MVHR in Cosham?
Guide prices for Cosham use South East rates: whole-home MVHR retrofit, 1 to 2 bedroom flat is typically £4,900 to £7,650 inc VAT per home. We confirm a fixed price in writing before any work starts.
Call or message us with your postcode and the number of bedrooms and we will come back with a guide price for Cosham.
MVHR near Cosham
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