Londonderry County · County Londonderry
MVHR servicing and filter changes in Londonderry County
Annual service, filters, heat exchanger clean and a measured airflow check for existing MVHR. Covering Londonderry County and BT47 and BT48.
- From £135 inc VAT per visit
- By arrangement

Many Londonderry County new builds have MVHR in the loft that nobody told the owners how to look after.
Customers in Londonderry County can get a guide price online in a couple of minutes. It uses Northern Ireland rates, which is what we would charge for the same job anywhere in County Londonderry. Because of the travel involved, visits here are by arrangement and travel is quoted before booking.
MVHR servicing in Londonderry County at a glance
- Town
- Londonderry County, County Londonderry
- Postcode districts
- BT47 and BT48
- Nearby
- Derry (under a mile), Strabane (14 miles) and Limavady (15 miles)
- Price region
- Northern Ireland
- Survey
- By arrangement, travel quoted first
What the work involves
Over a year or two the filters clog, the fans work harder, airflow at the valves drops and the house slowly goes back to condensation and stale air. It is common for a system to go years without a filter change after the builder hands over.
Rebalance and recommission
Every valve measured and set again to the design rates, with a new commissioning sheet. Useful after building work or if rooms feel stuffy.
Filter supply
The right filters for your unit, ready to change yourself between visits.
Guide prices in Londonderry County
| Work | Guide price |
|---|---|
| MVHR service: filters, unit and heat exchanger clean, airflow check (per visit) | £135–£225 inc VAT |
| Rebalance and recommission an existing MVHR system (per system) | £225–£410 inc VAT |
| MVHR or MEV commissioning test, every terminal measured and recorded (per system) | £225–£365 inc VAT |
Guide prices using Northern Ireland rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first. Travel is quoted separately for this area.
Common reasons people call
- The unit is louder than it used to be
- You have moved into a new build and nobody has serviced it
- Water dripping from the unit or ducts
Rules that apply in Northern Ireland
Northern Ireland has its own building regulations, with ventilation guidance in Technical Booklet K. We design to the Northern Ireland guidance and measure the airflow achieved.
Questions from Londonderry County
Do you cover Londonderry County and nearby?
Yes. We cover Londonderry County and nearby places including Derry, Strabane and Limavady. Send your postcode and we will confirm.
Why has my MVHR system gone noisy?
Noise usually comes from clogged filters making the fans work harder, a fan bearing wearing out, or valves that have been closed down. A service and rebalance fixes most cases.
Do I need to be at home for the service?
Someone needs to let us in and be there when we measure the valves, which means visiting every room. A service usually takes one to two hours.
What is the price of an MVHR service in Londonderry County?
Guide prices for Londonderry County use Northern Ireland rates: MVHR service: filters, unit and heat exchanger clean, airflow check is typically £135 to £225 inc VAT per visit. We confirm a fixed price in writing before any work starts.
Is the survey free in Londonderry County?
Visits here are by arrangement. Because of the ferry or long travel involved, we quote travel separately and in writing before you commit, and we can often combine visits to keep the cost down.
If the system in your Londonderry County home needs more than a service, we will explain why and price it before doing anything.
MVHR servicing near Londonderry County
More services in Londonderry County
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.