Home ventilation, Highland and Moray
Continuous extract fans (dMEV) in Highland and Moray
Quiet low-energy fans that run all the time and boost automatically when humidity rises, across Highland and Moray.
- From £330 inc VAT per fan
- Free survey

A dMEV (decentralised mechanical extract ventilation) fan is a low-energy extract fan that runs continuously at a quiet trickle speed and boosts automatically when it senses humidity or a light switch. Because it never fully switches off, moisture is removed steadily instead of building up between showers.
Our team is based in Great Barr, Birmingham, and we work throughout Highland and Moray, from Fort William, Nairn, Inverness and Elgin. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
Jobs in the remote Highlands and on the islands are by arrangement, with travel quoted in writing before you commit.
dMEV fans in Highland and Moray at a glance
- Area
- Highland and Moray, Scotland
- Towns listed
- 4, largest Inverness
- Postcode districts
- IV30, IV31, PH33, IV12, IV1 and IV2
- Price region
- Scotland
- Survey
- Free survey (UK mainland)
How we do it
A dMEV (decentralised mechanical extract ventilation) fan is a low-energy extract fan that runs continuously at a quiet trickle speed and boosts automatically when it senses humidity or a light switch. Because it never fully switches off, moisture is removed steadily instead of building up between showers.
Kitchen
Higher-rated continuous fans where a ducted hood is not practical.
Whole-home dMEV upgrade
Every wet room converted at once, with trickle vents checked in the habitable rooms.
Commissioned and recorded
Trickle and boost rates measured and written on a commissioning sheet.
Guide prices in Highland and Moray
| Work | Guide price |
|---|---|
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £330–£575 inc VAT |
| Airflow testing and commissioning sheet for extract fans (up to 6 fans) (per home) | £140–£285 inc VAT |
Scotland rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Common reasons people call
- Mould keeps returning in a bathroom with a working fan
- You manage rental homes and want ventilation that cannot be switched off
- You are refurbishing several wet rooms at once
Rules 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. Extract and whole-home rates are designed to the Scottish standards and measured at handover.
How the job runs
- Survey
- Specify
- Fit
- Commission
- Record
Towns we cover in Highland and Moray
Questions about continuous extract fans (dMEV) in Highland and Moray
Which rules apply to ventilation in Highland and Moray?
In Scotland, ventilation is covered by section 3 of the Building Standards Technical Handbooks. Private rented homes must meet the Repairing Standard, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
Is it expensive to run a fan all the time?
No. dMEV fans use very little electricity on trickle speed, typically a few watts, so running costs are low compared with the condensation and mould they prevent.
Are continuous fans noisy?
A correctly sized dMEV fan is very quiet on trickle; most people only notice it on boost. Noise usually means the wrong fan or a poor duct.
Which towns in Highland and Moray do you cover?
All of Highland and Moray, including Fort William, Nairn, Inverness and Elgin. If your town is not listed, send the postcode and we will confirm.
Are prices different in Highland and Moray?
Our guide prices are adjusted by region. In Highland and Moray we use Scotland rates, so continuous-running extract fan (dMEV) with humidity boost, flow tested is typically £330 to £575 inc VAT per fan.
Other services in Highland and Moray
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.