Northwood, Greater London
MVHR servicing and filter changes in Northwood
Annual service, filters, heat exchanger clean and a measured airflow check for existing MVHR. Covering Northwood and HA5, HA6 and WD19.
- From £175 inc VAT per visit
- Charged visit, price agreed first

For Northwood homeowners, the usual signs a service is due are condensation coming back or the unit getting louder.
Whether the property is in the middle of Northwood 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 Northwood at a glance
- Town
- Northwood, Greater London
- Postcode districts
- HA5, HA6 and WD19
- Nearby
- Northwood Hills (1 mile), Croxley Green (2 miles) and Pinner (2 miles)
- Price region
- London
- Survey
- Charged visit, price agreed first
How we approach MVHR servicing in Northwood
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.
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 Northwood
| Work | Guide price |
|---|---|
| MVHR service: filters, unit and heat exchanger clean, airflow check (per visit) | £175–£295 inc VAT |
| Rebalance and recommission an existing MVHR system (per system) | £295–£525 inc VAT |
| MVHR or MEV commissioning test, every terminal measured and recorded (per system) | £295–£475 inc VAT |
London rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- 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
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.
Questions from Northwood
Is the survey free in Northwood?
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 much does an MVHR service cost?
An MVHR service usually costs £145 to £245 including VAT, depending on the unit and how easy it is to reach. Filters are included for most common units; rebalancing every valve is priced separately at £245 to £445.
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.
How do I get a price for an MVHR service in Northwood?
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 Northwood do you work in?
All of Greater London. Near Northwood that includes Northwood Hills, Croxley Green, Pinner and Batchworth.
If the system in your Northwood home needs more than a service, we will explain why and price it before doing anything.
MVHR servicing near Northwood
More services in Northwood
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.