Haverfordwest, Dyfed
Positive input ventilation (PIV) in Haverfordwest
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Haverfordwest and SA61 and SA62.
- From £750 inc VAT per home
- Free survey
If your Haverfordwest flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
Customers in Haverfordwest can get a guide price online in a couple of minutes. It uses Wales rates, which is what we would charge for the same job anywhere in Dyfed. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Haverfordwest at a glance
- Town
- Haverfordwest, Dyfed
- Postcode districts
- SA61 and SA62
- Nearby
- Milford Haven (7 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
What the work involves
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.
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 Haverfordwest
| 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 |
Guide prices using Wales 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
- 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 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 Haverfordwest
What area around Haverfordwest do you work in?
All of Dyfed. Near Haverfordwest that includes Milford Haven.
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.
Do you cover Haverfordwest and nearby?
Yes. We cover Haverfordwest and nearby places including Milford Haven. Send your postcode and we will confirm.
What is the price of a PIV unit in Haverfordwest?
Guide prices for Haverfordwest 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.
Book a free Haverfordwest survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Haverfordwest
More services in Haverfordwest
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.