Witham, Essex
Positive input ventilation (PIV) in Witham
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Witham and CM8 and CM9.
- From £825 inc VAT per home
- Free survey
PIV can suit Witham houses and flats because it treats the whole home from one quiet unit.
Witham is about 120 miles from our base in Great Barr, Birmingham. We book Witham visits by appointment and confirm the date in writing. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Witham at a glance
- Town
- Witham, Essex
- Postcode districts
- CM8 and CM9
- Nearby
- Maldon (5 miles), Braintree (7 miles) and Chelmsford (8 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
What the work involves
It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source. On survey we check the loft, the landing position and the existing fans, and we tell you if PIV is not the right answer.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Guide prices in Witham
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £825–£1,475 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,050–£1,775 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £150–£310 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.
Common reasons people call
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
Rules that apply 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.
Questions from Witham
What is the price of a PIV unit in Witham?
Guide prices for Witham use East of England rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £825 to £1,475 inc VAT per home. We confirm a fixed price in writing before any work starts.
Will PIV make my house cold?
Most units temper or reduce the flow when the incoming air is cold, and a heated unit warms it. Placed correctly on the landing, the air spreads gently rather than blowing on anyone.
Can PIV be fitted in a flat?
Yes. Flats without loft space use a wall-mounted PIV unit that draws air from outside through an outside wall.
Is the survey free in Witham?
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 do I get a price for a PIV unit in Witham?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
We will check the existing fans in your Witham home at the same visit, because PIV works best with them working.
PIV near Witham
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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.