dMEV installation in Ferndown
In Ferndown, MX2 Electrical takes on dMEV installation for one room and cuts the outside wall only when the short extract duct needs it.
Calls answered 24/7
- 2 years trading
Ventilation installation pricing
We provide straightforward pricing for supplying and fitting dMEV units to an existing, fully working electrical connection with access to external ducting.
From £140
Included in the installation
- Supply and fit of one dMEV unit or extractor fan in a bathroom, kitchen, utility or wet room
- Electrical connection to an existing isolator or fused spur that is already in the room
- Short extract ducting through an outside wall where the hole is already there or can be cut by us as part of the electrical visit
- Boost setup for humidity or a light switch, as the fan model allows
- A minor works certificate for the circuit we have altered
Ways to pay


- Pay by bank
- Bank transfer
- The baseline price covers installing a single continuous extract fan onto an existing, functioning circuit with clear exterior ducting.
- Coring a new external wall opening, extending duct runs or running new supply cabling will adjust the final quotation.
- Labour and materials for diagnosing or repairing pre-existing electrical circuit faults are quoted separately before work proceeds.
- Current labour rate: £70 per hour.
- Materials, specialist equipment and larger project work are confirmed separately before they go ahead.
dMEV installation across Ferndown
We serve Ferndown from our base in Poole.
What happens on the day
Every installation follows a clear process to check the existing circuit, secure the fan unit and verify that extraction rates work correctly before completing the electrical records.
- Circuit isolation and connection checksWe isolate electrical power to the room at the consumer unit, inspect the existing fused spur or local fan isolator switch, and check live, neutral and earth conductors before mounting any new hardware.
- Mounting the fan and connecting ductworkThe dMEV unit is fixed firmly to the ceiling or wall opening, attached to the external duct run, and wired into the local isolator switch with the correct permanent and switched supplies.
- Setting trickle and boost ratesWe configure the unit according to room size, setting the continuous trickle rate and setting up the boost trigger, whether operated by internal humidity sensors or the bathroom lighting switch.
- Airflow verification and certificationWe test that air extracts freely to the exterior terminal, test electrical safety characteristics on the altered circuit, and prepare a minor works certificate for your installation files.
How booking works
Tell us about the job
Tap Book Now and describe the work in the chat. Photos help.
Get your price
You see your price in the chat. A set price is paid at checkout; any other job is quoted first.
Choose your visit
Give your address and when you are free, and the visit is arranged.
Follow your job from booking to receipt
See when we're on our way, get your job report the moment we finish, and pay in seconds.
Track us on our way
See us on the map with a live arrival time.
Your job report, same day
See exactly what was done as soon as we finish.
Invoice and receipt in one place
Pay online in seconds, and your receipt is always there when you need it.
Why choose MX2 Electrical
You see the price before you call
Starting prices for the common jobs are published on this site, not held back until someone visits.
Registered work, certificated properly
MX2 Electrical is NAPIT registered, and notifiable work is notified through that registration.
The fault gets found before the repair gets priced
Testing establishes what is actually wrong rather than replacing parts in sequence.
- Reviews
- 101
- Rating
- 4.9
- Trading since
- 2024
“With over 20 years in the trade behind us, we are a fully qualified, NAPIT registered team covering Poole and the Dorset area, domestic and commercial. We turn up when we say we will, explain what needs doing before we do it, and leave the place as we found it.”
Mohsen Nazari, MX2 Electrical
Book NowPhotos of our work
What is a dMEV fan and how does it operate?
A dMEV fan stands for decentralised mechanical extract ventilation. Unlike standard intermittent extractors that only turn on alongside a room light, a dMEV fan runs constantly at a low, quiet trickle speed to extract stale air. When bathing or showering causes humidity to spike, an integrated sensor or switched live automatically speeds the fan up to boost mode until moisture levels fall.
Can a dMEV fan replace an existing bathroom extractor fan?
Yes, provided the existing electrical circuit and duct path to outside air are intact. We remove the old extractor, test the supply wiring at the isolator, and mount the continuous fan into the wall or ceiling opening. If the wiring needs altering or a local isolator switch is absent, we adapt the circuit accordingly.
Will I receive an electrical certificate after installation?
Yes. Altering electrical circuits in special locations such as bathrooms and shower rooms requires formal documentation. As a NAPIT registered business, MX2 Electrical issues a minor works certificate upon completing the installation, confirming that earthing, wiring and safety devices comply with regulations.
Do you install continuous extract fans in flats across BH22?
We install dMEV units in both flats and houses throughout the BH22 area, including Ferndown town centre, Tricketts Cross and West Parley. The room must have an accessible route for short ducting through an outside wall or existing ceiling vent to discharge humid air externally.
How noisy is a continuous running extractor fan?
Modern dMEV units are engineered to operate almost silently on continuous background trickle speed. You will hear an increase in airflow sound when the fan switches to boost mode during showering, but the unit automatically drops back down to whisper-quiet trickle mode once humidity clears.
