Home ventilation, County Armagh
Continuous extract fans (dMEV) in County Armagh
Quiet low-energy fans that run all the time and boost automatically when humidity rises, across County Armagh.
- From £315 inc VAT per fan
- By arrangement
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.
Across County Armagh the job is priced the same way wherever you are: what is fitted, how long it takes and how far we travel. Towns we cover include Armagh, Craigavon and Portadown.
dMEV fans in County Armagh at a glance
- Area
- County Armagh, Northern Ireland
- Towns listed
- 3, largest Craigavon
- Postcode districts
- BT61, BT64, BT65, BT62, BT63 and BT60
- Price region
- Northern Ireland
- Survey
- By arrangement, travel quoted first
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.
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.
Bathroom and en-suite
Through-wall or ceiling fans with humidity-controlled boost.
Guide prices in County Armagh
| Work | Guide price |
|---|---|
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £315–£550 inc VAT |
| Airflow testing and commissioning sheet for extract fans (up to 6 fans) (per home) | £135–£270 inc VAT |
Northern Ireland rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job. Travel is quoted separately for this area.
When to get it looked at
- You are refurbishing several wet rooms at once
- An energy retrofit has made the house more airtight
- Building control has asked for continuous extract
Rules in Northern Ireland
Northern Ireland has its own building regulations, with ventilation guidance in Technical Booklet K. Extract rates follow the Northern Ireland guidance and are measured at handover.
How the job runs
- Survey
- Specify
- Fit
- Commission
- Record
Towns we cover in County Armagh
Questions about continuous extract fans (dMEV) in County Armagh
Which rules apply to ventilation in County Armagh?
In Northern Ireland, ventilation is covered by Technical Booklet K of the Building Regulations (Northern Ireland). Workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations (Northern Ireland) 1993.
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 County Armagh do you cover?
All of County Armagh, including Armagh, Craigavon and Portadown. If your town is not listed, send the postcode and we will confirm.
Are prices different in County Armagh?
Our guide prices are adjusted by region. In County Armagh we use Northern Ireland rates, so continuous-running extract fan (dMEV) with humidity boost, flow tested is typically £315 to £550 inc VAT per fan.
Other services in County Armagh
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