Home ventilation, Hertfordshire
MVHR installation in Hertfordshire
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover, across Hertfordshire.
- From £4,675 inc VAT per home
- Free survey
Fitting MVHR in a Hertfordshire home starts with where the unit can live and how ducts reach each room.
If you are anywhere in Hertfordshire, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Hatfield, Bishop's Stortford, Watford, Hemel Hempstead and Stevenage.
MVHR in Hertfordshire at a glance
- Area
- Hertfordshire
- Towns listed
- 32, largest Watford
- Postcode districts
- HP2, SG1, SG2, AL1, AL2 and AL6
- Price region
- East of England
- Survey
- Free survey (UK mainland)
What MVHR installation involves
Filters on both sides keep pollen and dust out of the house and keep the exchanger clean. 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.
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 Hertfordshire
| Work | Guide price |
|---|---|
| Whole-home MVHR retrofit, 1 to 2 bedroom flat (per home) | £4,675–£7,300 inc VAT |
| Whole-home MVHR retrofit, 3 bedroom house (per home) | £6,750–£9,900 inc VAT |
| Whole-home MVHR retrofit, 4 to 5 bedroom house (per home) | £9,400–£14,650 inc VAT |
| MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home) | £5,200–£8,350 inc VAT |
Guide prices using East of England rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
When to get it looked at
- 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
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
- Survey and room schedule
- Design and airflow rates
- First fix
- Second fix and valves
- Commission and hand over
Towns we cover in Hertfordshire
- Watford
- Hemel Hempstead
- Stevenage
- St Albans
- Welwyn Garden City
- Cheshunt
- Hatfield
- Bishop's Stortford
- Borehamwood
- Hitchin
- Hoddesdon
- Letchworth Garden City
- North Watford
- Harpenden
- Bushey
- Hertford
- Rickmansworth
- Potters Bar
- Berkhamsted
- Ware
- Enfield Lock
- Royston
- Croxley Green
- Broxbourne
- West Watford
- Batchworth
- Tring
- Chorleywood
- Codicote
- Baldock
- Abbots Langley
- Waltham Cross
Questions about MVHR installation in Hertfordshire
Is the survey free in Hertfordshire?
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.
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.
Is MVHR worth it in an older house?
It can be, but the payback is best in a home that is fairly airtight. In a draughty house MVHR still gives steady fresh air and condensation control, but a PIV unit or continuous extract fans may solve the same problem for far less. We will tell you which on survey.
Which rules apply to ventilation in Hertfordshire?
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 Hertfordshire do you cover?
All of Hertfordshire, including Hatfield, Bishop's Stortford, Watford, Hemel Hempstead and Stevenage. If your town is not listed, send the postcode and we will confirm.
Get a guide price online in two minutes, then book a free survey anywhere in Hertfordshire.
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