Chepstow, Gwent
Positive input ventilation (PIV) in Chepstow
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Chepstow and NP16 and NP26.
- From £750 inc VAT per home
- Free survey
For a typical Chepstow semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
Chepstow is about 71 miles from our base in Great Barr, Birmingham. We book Chepstow visits by appointment and confirm the date in writing. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Chepstow at a glance
- Town
- Chepstow, Gwent
- Postcode districts
- NP16 and NP26
- Nearby
- Monmouth (12 miles), Newport (14 miles) and Cwmbran (15 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
How we approach PIV in Chepstow
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.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Guide prices in Chepstow
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £750–£1,325 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £950–£1,600 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £140–£280 inc VAT |
Wales rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
When to get it looked at
- 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 Wales
In Wales, ventilation follows the Welsh Approved Document F rather than the English version, with building control checking notifiable work. Extract rates and commissioning are checked against the Welsh guidance on every job.
Questions from Chepstow
What area around Chepstow do you work in?
All of Gwent. Near Chepstow that includes Monmouth, Newport, Cwmbran and Pontypool.
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.
Do you cover Chepstow and nearby?
Yes. We cover Chepstow and nearby places including Monmouth, Newport, Cwmbran and Pontypool. Send your postcode and we will confirm.
What is the price of a PIV unit in Chepstow?
Guide prices for Chepstow use Wales rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £750 to £1,325 inc VAT per home. We confirm a fixed price in writing before any work starts.
We will check the existing fans in your Chepstow home at the same visit, because PIV works best with them working.
PIV near Chepstow
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