Saffron Walden, Essex
Positive input ventilation (PIV) in Saffron Walden
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Saffron Walden and CB10 and CB11.
- From £825 inc VAT per home
- Free survey

PIV is often a good fix for Saffron Walden homes with condensation on every window.
For positive input ventilation (PIV) in Saffron Walden, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
PIV in Saffron Walden at a glance
- Town
- Saffron Walden, Essex
- Postcode districts
- CB10 and CB11
- Nearby
- Haverhill (9 miles), Bishop's Stortford (11 miles) and Royston (12 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
PIV for Saffron Walden homes
Many units have a temperature sensor that reduces the flow or switches to a heater module on cold days, so the incoming air does not feel like a draught. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
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 Saffron Walden
| 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
- 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). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Saffron Walden
How do I get a price for a PIV unit in Saffron Walden?
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.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
How much does PIV cost to install?
A loft-mounted PIV unit usually costs £795 to £1,395 including VAT supplied and fitted, and £995 to £1,695 for a wall-mounted unit in a flat. A heater module adds around £145 to £295.
What area around Saffron Walden do you work in?
All of Essex. Near Saffron Walden that includes Haverhill, Bishop's Stortford, Royston and Cambridge.
Do you cover Saffron Walden and nearby?
Yes. We cover Saffron Walden and nearby places including Haverhill, Bishop's Stortford, Royston and Cambridge. Send your postcode and we will confirm.
Get a PIV guide price for your Saffron Walden home online, then confirm it on a free survey.
PIV near Saffron Walden
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