--- title: "dMEV installation in Christchurch | 4.9 Star · NAPIT · TrustMark" description: "dMEV installation in Christchurch serving Mudeford, from MX2 Electrical Gold Card electricians, with minor works certificate left after testing." canonical: "https://mx2-electrical-ltd.co.uk/electrician-christchurch/dmev-installation" --- # dMEV installation in Christchurch > dMEV installation in Christchurch serving Mudeford, from MX2 Electrical Gold Card electricians, with minor works certificate left after testing. Homeowners in Christchurch ask MX2 Electrical, TrustMark registered, for dMEV installation, and we test the fan circuit before leaving the certificate. ## How dMEV installation pricing works The price covers the supply and electrical installation of a single continuous extract unit connected to a sound, existing circuit. Specific property requirements determine the final total. - Extractor fan installation: from £140 - The price covers supplying one dMEV unit, connecting it to an existing functional spur, and attaching short ducting to an open wall vent. - Additional charges apply if new electrical cable must be run from the consumer unit or if an isolator switch needs to be installed from scratch. - Core drilling a new external opening through masonry or fitting long duct runs across a roof space is priced separately. ## dMEV installation across Christchurch We serve Christchurch from our base in Poole. - Christchurch town centre - Mudeford - Burton - BH23 ## What happens on the day Every installation follows a clear electrical procedure to ensure safe operation, secure ducting, and neat cable connections. ### Circuit isolation and safety testing We isolate the power supply at the consumer unit and test the circuit at the local isolator switch or fused spur to confirm it is dead before taking down the old fan or handling existing cables. ### Mounting and duct connection The fan casing is fixed securely to the wall or ceiling. We connect short ducting through an existing external wall core or vent opening, ensuring the pipework is properly aligned to discharge air outside. ### Wiring and boost setup We terminate the permanent live, switched live, neutral, and earth conductors into the unit. We then calibrate the internal humidity sensor or connect the switched live to the light switch so the boost mode activates properly. ### Airflow checks and documentation The unit is tested on both trickle and boost settings to confirm smooth airflow. We inspect the isolator switch operation and issue a minor works certificate for the altered electrical circuit. ## Frequently asked questions about dMEV installations ### What is a dMEV ventilation unit? A dMEV unit is a decentralised mechanical extract ventilation fan designed for continuous operation. Unlike standard bathroom fans that only switch on with the light, a dMEV fan runs constantly at a very low trickle speed to maintain gentle air exchange, automatically boosting to a higher extraction rate when humidity levels rise. ### Do you supply the fan as part of the installation? Yes, our installation covers both the supply and fitting of the continuous extract fan, along with connection to your existing electrical isolator and ducting. If you already have a specific fan model you wish to use, let us know and we can wire the fan you have purchased instead. ### Will I receive an electrical certificate for the work? Yes. Electrical work carried out in wet rooms and alterations to domestic circuits require certification. MX2 Electrical is NAPIT registered, and we issue a minor electrical installation works certificate upon completing the installation and testing. ### Can a continuous extract fan replace an old bathroom fan? In most cases, yes. If your current fan is fed by a suitable fused spur or isolator switch with a permanent live, neutral, and earth conductor, a continuous unit can be installed directly into the existing opening and connected to the existing duct. ### Do you install continuous extract units in flats and apartments? Yes, we install these units in both houses and flats across Christchurch, provided there is a direct vent path to the outside air through an external wall or dedicated ceiling duct. ## Other services in Christchurch - [Electrician in Christchurch](https://mx2-electrical-ltd.co.uk/electrician-christchurch): Electrical repairs, inspections and planned installations for homes, landlords and suitable business premises across Christchurch and BH23. - [dMEV installation (all areas)](https://mx2-electrical-ltd.co.uk/services/dmev-installation): MX2 Electrical fits dMEV and extractor fans in Poole and Dorset from £140. Continuous extract for bathrooms, kitchens and wet rooms. - [EV charger installation in Christchurch](https://mx2-electrical-ltd.co.uk/electrician-christchurch/ev-charger-installation) - [Lighting Installation in Christchurch](https://mx2-electrical-ltd.co.uk/electrician-christchurch/lighting-installation) - [House rewiring in Christchurch](https://mx2-electrical-ltd.co.uk/electrician-christchurch/house-rewiring) - [Consumer unit replacement in Christchurch](https://mx2-electrical-ltd.co.uk/electrician-christchurch/fuse-board-replacement) - [Industrial electrical projects and maintenance in Christchurch](https://mx2-electrical-ltd.co.uk/electrician-christchurch/industrial-electrical-projects-maintenance) - [EICR in Christchurch](https://mx2-electrical-ltd.co.uk/electrician-christchurch/eicr) ## Business facts - Service area: Poole, Bournemouth, Broadstone, Wimborne Minster, Wareham, Upper Parkstone, Ferndown, Christchurch, Canford Heath, Westbourne - Hours: Calls answered 24/7 - Phone: +447397844504 - Email: info@mx2-electrical-ltd.co.uk - Qualifications: NVQ Level 3, City & Guilds; Gold Card Electrician - Pricing rules: Current labour rate: £70 per hour.; Materials, specialist equipment and larger project work are confirmed separately before they go ahead. ## Book Now - [Book Now](https://mx2-electrical-ltd.co.uk/#chat): Send the job details and request a quote from MX2 Electrical. ## Sitemap - [Full sitemap](https://mx2-electrical-ltd.co.uk/sitemap.md): Complete machine-readable page directory.