Harlow, Essex
Positive input ventilation (PIV) in Harlow
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Harlow and CM17, CM18, CM19 and CM20.
- From £825 inc VAT per home
- Free survey
If your Harlow flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
Customers in Harlow can get a guide price online in a couple of minutes. It uses East of England rates, which is what we would charge for the same job anywhere in Essex. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Harlow at a glance
- Town
- Harlow, Essex
- Postcode districts
- CM17, CM18, CM19 and CM20
- Nearby
- Hoddesdon (5 miles), Epping (5 miles) and Broxbourne (6 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
How we approach PIV in Harlow
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 Harlow
| 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.
Signs it is time to call us
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. 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 Harlow
What is the price of a PIV unit in Harlow?
Guide prices for Harlow 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.
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.
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.
Is the survey free in Harlow?
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 Harlow?
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.
Book a free Harlow survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Harlow
More services in Harlow
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.