Dalkeith, Lothians
Positive input ventilation (PIV) in Dalkeith
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Dalkeith and EH18, EH19 and EH22.
- From £775 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Dalkeith, after checking the house first.
Work in Dalkeith follows the rules for Scotland and finishes with a written record of what was fitted and how it was set up.
PIV in Dalkeith at a glance
- Town
- Dalkeith, Lothians
- Postcode districts
- EH18, EH19 and EH22
- Nearby
- Mayfield (2 miles), Bonnyrigg (2 miles) and Musselburgh (3 miles)
- Price region
- Scotland
- Survey
- Free survey (UK mainland)
PIV for Dalkeith homes
Many units have a temperature sensor that reduces the flow or switches to a heater module on cold days, so the incoming air does not feel like a draught. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
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 Dalkeith
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £775–£1,350 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £950–£1,625 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £140–£285 inc VAT |
Guide prices using Scotland rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Common reasons people call
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
Rules that apply in Scotland
In Scotland, ventilation is covered by the Building (Scotland) Regulations and section 3 of the Technical Handbooks, and most building work needs a building warrant first. We work to the Scottish ventilation standards and record the airflow achieved.
Questions from Dalkeith
Do you cover Dalkeith and nearby?
Yes. We cover Dalkeith and nearby places including Mayfield, Bonnyrigg, Musselburgh and Tranent. Send your postcode and we will confirm.
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.
What is the price of a PIV unit in Dalkeith?
Guide prices for Dalkeith use Scotland rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £775 to £1,350 inc VAT per home. We confirm a fixed price in writing before any work starts.
Is the survey free in Dalkeith?
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.
Get a PIV guide price for your Dalkeith home online, then confirm it on a free survey.
PIV near Dalkeith
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