Chelmsford, Essex
MVHR servicing and filter changes in Chelmsford
Annual service, filters, heat exchanger clean and a measured airflow check for existing MVHR. Covering Chelmsford and CM1, CM2 and CM3.
- From £150 inc VAT per visit
- Charged visit, price agreed first

A Chelmsford MVHR service takes one to two hours and ends with measured airflows, not just new filters.
Whether the property is in the middle of Chelmsford or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
MVHR servicing in Chelmsford at a glance
- Town
- Chelmsford, Essex
- Postcode districts
- CM1, CM2 and CM3
- Nearby
- Billericay (8 miles), Witham (8 miles) and Maldon (9 miles)
- Price region
- East of England
- Survey
- Charged visit, price agreed first
What the work involves
A service puts that right. We work on most makes of MVHR unit and can supply filters for future changes, so you can do the in-between swaps yourself if you would rather.
Annual service
Filters, exchanger and fan clean, drain check, controls and boost checked, airflow spot-checked at the valves.
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.
Guide prices in Chelmsford
| 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–£415 inc VAT |
These ranges use our East of England rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- Water dripping from the unit or ducts
- The unit filter warning is showing
- Condensation is back on windows that used to stay dry
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 Chelmsford
Is the survey free in Chelmsford?
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 often should MVHR filters be changed?
Most manufacturers recommend changing MVHR filters every 6 to 12 months, and more often near busy roads or building sites. A full service once a year is a sensible minimum.
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.
How do I get a price for an MVHR service in Chelmsford?
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.
What area around Chelmsford do you work in?
All of Essex. Near Chelmsford that includes Billericay, Witham, Maldon and Wickford.
Ask about filter supply when you book your Chelmsford service, so you can do the in-between changes yourself.
MVHR servicing near Chelmsford
More services in Chelmsford
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.