Home ventilation, West Sussex
MVHR installation in West Sussex
Whole-home heat recovery ventilation, designed room by room and airflow-tested at handover, across West Sussex.
- From £4,900 inc VAT per home
- Free survey

If you are making a West Sussex house warmer and tighter, MVHR keeps the air fresh without throwing the heat away.
If you are anywhere in West Sussex, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Burgess Hill, Crawley, Worthing, Bognor Regis and Littlehampton.
MVHR in West Sussex at a glance
- Area
- West Sussex
- Towns listed
- 16, largest Crawley
- Postcode districts
- PO21, RH6, RH10, BN11, BN12 and PO20
- Price region
- South East
- 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.
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 West Sussex
| Work | Guide price |
|---|---|
| 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 |
| Whole-home MVHR retrofit, 4 to 5 bedroom house (per home) | £9,850–£15,350 inc VAT |
| MVHR in a new build or full renovation (fitted at first fix), 3 to 4 bedrooms (per home) | £5,450–£8,750 inc VAT |
Guide prices using South East rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Common reasons people call
- A new build or extension where the SAP or building control needs a ventilation system
- Stale air or cooking smells that hang around
- Pollen or traffic pollution you want filtered out
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 West Sussex
- Crawley
- Worthing
- Bognor Regis
- Littlehampton
- Horsham
- Haywards Heath
- Chichester
- Burgess Hill
- East Grinstead
- Shoreham-by-Sea
- Lancing
- Rustington
- Broadfield
- Hurstpierpoint
- Barnham
- Selsey
Questions about MVHR installation in West Sussex
Are prices different in West Sussex?
Our guide prices are adjusted by region. In West Sussex we use South East rates, so whole-home MVHR retrofit, 1 to 2 bedroom flat is typically £4,900 to £7,650 inc VAT per home.
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.
How noisy is MVHR?
Correctly sized and balanced MVHR is very quiet on normal speed; most people stop noticing it within days. Noise problems usually come from undersized ducts or a unit running flat out, which is why we design the rates first.
Is the survey free in West Sussex?
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.
Which rules apply to ventilation in West Sussex?
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.
Every MVHR job in West Sussex finishes with a measured commissioning sheet, so you know the system does what it should.
Other services in West Sussex
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.