Dorchester, Dorset
MVHR servicing and filter changes in Dorchester
Annual service, filters, heat exchanger clean and a measured airflow check for existing MVHR. Covering Dorchester and DT1, DT2 and DT3.
- From £150 inc VAT per visit
- Charged visit, price agreed first

If your Dorchester home has MVHR and the filter light is on, a service is overdue.
Work in Dorchester follows the rules for England and finishes with a written record of what was fitted and how it was set up.
MVHR servicing in Dorchester at a glance
- Town
- Dorchester, Dorset
- Postcode districts
- DT1, DT2 and DT3
- Nearby
- Weymouth (7 miles), Portland (10 miles) and Bridport (14 miles)
- Price region
- South West
- Survey
- Charged visit, price agreed first
MVHR servicing for Dorchester homes
MVHR is often fitted and then forgotten. 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.
Filter supply
The right filters for your unit, ready to change yourself between visits.
Fault finding
Noisy fans, error codes, condensate leaks and boost controls that stopped working.
Guide prices in Dorchester
| Work | Guide price |
|---|---|
| MVHR service: filters, unit and heat exchanger clean, airflow check (per visit) | £150–£255 inc VAT |
| Rebalance and recommission an existing MVHR system (per system) | £255–£465 inc VAT |
| MVHR or MEV commissioning test, every terminal measured and recorded (per system) | £255–£410 inc VAT |
These ranges use our South West rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
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 England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Dorchester
What is the price of an MVHR service in Dorchester?
Guide prices for Dorchester use South West rates: MVHR service: filters, unit and heat exchanger clean, airflow check is typically £150 to £255 inc VAT per visit. We confirm a fixed price in writing before any work starts.
Can you service any make of MVHR?
We service most common makes of whole-home MVHR unit. If we cannot get parts for an older or unusual unit we will tell you before the visit and suggest options.
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.
Is the survey free in Dorchester?
This is a charged visit because it is servicing, testing or repair work. We tell you the cost before booking. Surveys for new installations on the UK mainland are free.
How do I get a price for an MVHR service in Dorchester?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
Ask about filter supply when you book your Dorchester service, so you can do the in-between changes yourself.
MVHR servicing near Dorchester
More services in Dorchester
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.