Desborough, Northamptonshire
Positive input ventilation (PIV) in Desborough
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Desborough and LE16, NN16 and NN18.
- From £775 inc VAT per home
- Free survey
PIV can suit Desborough houses and flats because it treats the whole home from one quiet unit.
For positive input ventilation (PIV) in Desborough, 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 Desborough at a glance
- Town
- Desborough, Northamptonshire
- Postcode districts
- LE16, NN16 and NN18
- Nearby
- Market Harborough (5 miles), Kettering (5 miles) and Corby (7 miles)
- Price region
- East Midlands
- Survey
- Free survey (UK mainland)
How we approach PIV in Desborough
PIV works well in houses and flats with general condensation on windows and cold walls. It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source.
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 Desborough
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £775–£1,375 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £975–£1,650 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £140–£290 inc VAT |
These ranges use our East Midlands rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Common reasons people call
- 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
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 Desborough
Is the survey free in Desborough?
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.
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.
How do I get a price for a PIV unit in Desborough?
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.
What area around Desborough do you work in?
All of Northamptonshire. Near Desborough that includes Market Harborough, Kettering, Corby and Wellingborough.
Most Desborough PIV jobs are done in half a day, so ask about the next available date.
PIV near Desborough
More services in Desborough
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.