Cheshunt, Hertfordshire
Positive input ventilation (PIV) in Cheshunt
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Cheshunt and EN7, EN8 and EN9.
- From £825 inc VAT per home
- Free survey
PIV is often a good fix for Cheshunt homes with condensation on every window.
Work in Cheshunt follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Cheshunt at a glance
- Town
- Cheshunt, Hertfordshire
- Postcode districts
- EN7, EN8 and EN9
- Nearby
- Waltham Cross (1 mile), Waltham Abbey (1 mile) and Enfield Lock (2 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
PIV for Cheshunt homes
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.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Guide prices in Cheshunt
| 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 |
East of England 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
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
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 Cheshunt
How do I get a price for a PIV unit in Cheshunt?
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.
Does PIV really stop condensation?
PIV reduces condensation in most homes because it dilutes moist air and keeps it moving, but it works best alongside working extract fans in the kitchen and bathroom. Leaks, rising damp or a cold bridge need fixing separately.
How much does PIV cost to run?
A standard PIV unit uses very little electricity, comparable to a low-energy light bulb on normal speed. A heated unit costs more in cold spells because the heater switches on when loft air is cold.
What area around Cheshunt do you work in?
All of Hertfordshire. Near Cheshunt that includes Waltham Cross, Waltham Abbey, Enfield Lock and Broxbourne.
Do you cover Cheshunt and nearby?
Yes. We cover Cheshunt and nearby places including Waltham Cross, Waltham Abbey, Enfield Lock and Broxbourne. Send your postcode and we will confirm.
Tell us whether your Cheshunt home has a loft and we can price a PIV unit before visiting.
PIV near Cheshunt
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.