Letchworth Garden City, Hertfordshire
Positive input ventilation (PIV) in Letchworth Garden City
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Letchworth Garden City and SG5, SG6 and SG15.
- From £825 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across Letchworth Garden City, after checking the house first.
For positive input ventilation (PIV) in Letchworth Garden City, 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 Letchworth Garden City at a glance
- Town
- Letchworth Garden City, Hertfordshire
- Postcode districts
- SG5, SG6 and SG15
- Nearby
- Baldock (2 miles), Hitchin (3 miles) and Henlow (4 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
What the work involves
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.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
Guide prices in Letchworth Garden City
| 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.
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
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 Letchworth Garden City
How do I get a price for a PIV unit in Letchworth Garden City?
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.
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 long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
What area around Letchworth Garden City do you work in?
All of Hertfordshire. Near Letchworth Garden City that includes Baldock, Hitchin, Henlow and Stevenage.
Do you cover Letchworth Garden City and nearby?
Yes. We cover Letchworth Garden City and nearby places including Baldock, Hitchin, Henlow and Stevenage. Send your postcode and we will confirm.
Get a PIV guide price for your Letchworth Garden City home online, then confirm it on a free survey.
PIV near Letchworth Garden City
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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.