Sleaford, Lincolnshire
Positive input ventilation (PIV) in Sleaford
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Sleaford and NG34.
- From £775 inc VAT per home
- Free survey

PIV can suit Sleaford houses and flats because it treats the whole home from one quiet unit.
Whether the property is in the middle of Sleaford or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
PIV in Sleaford at a glance
- Town
- Sleaford, Lincolnshire
- Postcode districts
- NG34
- Nearby
- Grantham (11 miles), Boston (16 miles) and Bourne (16 miles)
- Price region
- East Midlands
- Survey
- Free survey (UK mainland)
PIV for Sleaford homes
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 Sleaford
| 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
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
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 Sleaford
What area around Sleaford do you work in?
All of Lincolnshire. Near Sleaford that includes Grantham, Boston, Bourne and Lincoln.
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.
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.
Do you cover Sleaford and nearby?
Yes. We cover Sleaford and nearby places including Grantham, Boston, Bourne and Lincoln. Send your postcode and we will confirm.
What is the price of a PIV unit in Sleaford?
Guide prices for Sleaford use East Midlands rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £775 to £1,375 inc VAT per home. We confirm a fixed price in writing before any work starts.
Most Sleaford PIV jobs are done in half a day, so ask about the next available date.
PIV near Sleaford
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