Home ventilation, Rutland
Continuous extract fans (dMEV) in Rutland
Quiet low-energy fans that run all the time and boost automatically when humidity rises, across Rutland.
- From £340 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 Rutland, from Oakham. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
dMEV fans in Rutland at a glance
- Area
- Rutland
- Towns listed
- 1, largest Oakham
- Postcode districts
- LE15
- Price region
- East Midlands
- Survey
- Free survey (UK mainland)
What the work involves
dMEV fans replace ordinary intermittent fans in bathrooms, kitchens, utility rooms and WCs. On trickle speed they are barely audible and use very little power; on boost they reach the higher continuous-extract rates in Approved Document F (in England, at least 13 litres a second for a kitchen, 8 for a utility room or bathroom and 6 for a WC). Landlords and housing associations often choose them because tenants cannot switch them off and forget them.
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.
Kitchen
Higher-rated continuous fans where a ducted hood is not practical.
Guide prices in Rutland
| Work | Guide price |
|---|---|
| Continuous-running extract fan (dMEV) with humidity boost, flow tested (per fan) | £340–£575 inc VAT |
| Airflow testing and commissioning sheet for extract fans (up to 6 fans) (per home) | £140–£290 inc VAT |
These ranges use our East Midlands rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Signs it is time to call us
- 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 England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.
How the job runs
- Survey
- Specify
- Fit
- Commission
- Record
Towns we cover in Rutland
Questions about continuous extract fans (dMEV) in Rutland
Are prices different in Rutland?
Our guide prices are adjusted by region. In Rutland we use East Midlands rates, so continuous-running extract fan (dMEV) with humidity boost, flow tested is typically £340 to £575 inc VAT per fan.
Do I still need trickle vents?
Yes. With continuous extract, Approved Document F still expects background ventilators in habitable rooms so replacement air can get in.
Can dMEV fans be fitted where a fan already exists?
Usually yes. Most fit the existing hole or duct, which keeps the cost and mess down.
Is the survey free in Rutland?
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.
Which rules apply to ventilation in Rutland?
In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
Other services in Rutland
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.