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Ventilation Diagnosis Tool

Figure out what's wrong with your ventilation system and our recommendations

What's wrong with my unit?

We've developed a simple diagnosis tool to help

If your system is noisy, it's not clearing the air, lights are flashing or you have condensation issues use our diagnosis tool to help try and pinpoint what the problem might be - answer some simple questions, give us your details and we'll be in touch.

If you need to speak to us - call on 033 0223 4180

Launch diagnosis tool

What's wrong with my ventilation unit?

It's making excessive noise!

It could be the motor bearing

Noise is the biggest giveaway of a motor issue. If there is a consistent 'whirring' or any excess noise, it can be an indicator that the motor bearing is faulty or broken.

Find out what's wrong

It's stuck in 'Boost' mode

The 'brain' has an error

The PCB is the 'brain' of your unit, and controls the system.

This can sometimes fail and will need to be replaced. 

Find out what's wrong

My ventilation unit is leaking

Are the pipes insulated?

Exhaust and intake duct requires insulation to stop condensation forming inside the duct - can you see this at the top of your unit? 

Or is the condensate blocked?

Find out what's wrong

The steam isn't clearing

Is something blocked?

Valves and grilles can become clogged which can prevent airflow.

Alternatively, there may be an issue with the external termination or duct connections - investigation required!

Find out what's wrong

Is your ventilation service overdue?

If it's been over a year, the answer is yes!

Ventilation systems require annual servicing to maintain a healthy, effective, and well running unit. If it's been over a year since your last service, it may be time to book in.

Simply fill out our ventilation service quote form and we will send you your personalised ventilation service quote. You can Save £20 when you book and pay online.

HRV service covers London and all surrounding areas.

Get My Service Quote

If we can’t fix your system, we can advise on the best replacement for your home

Out with the old, and in with the new...

Like many household appliances, things go wrong and come to the end of their life. Sometimes it’s just time to upgrade to a new energy-efficient system – this will help reduce your running costs! 

As an independent company, we can offer advice on the most suitable and cost-effective ventilation system replacement for your home to help get rid of mould and condensation and keep your indoor environment fresh and comfortable. It’s all about #indoorairquality

Send Enquiry

or Call 033 0223 4180

Ventilation System Servicing Options


Heat Recovery Service



More info
  • Full comprehensive service of your heat recovery system including clean/sanitise unit, valves, duct connections and new supply/extract filters
  • Airflow testing/rebalancing and service report
  • SAVE £20.00 today with our online quote and pay tool 
  • We are experienced with all makes and models;
    Vent Axia Sentinel Kinetic 
    Greenwood HR155/HR185, HRV1/HRV2 
    Zehnder ComforAir & ComfoCool, CA155WM, CA185WM
    Nuaire MRXBOX ECO2/ECO3/ECo4
    Titon HRVQPlus 
    Envirovent Energisava
    and many more...

    Call on 033 0223 4180
    Send Service Enquiry
    Service Price based on Location/Property Size/Bedrooms


Central Extract Service



More info
  • Full comprehensive service, clean and sanitisation of your home MEV extract system
  • SAVE £20.00 Today with our online quote and pay tool
  • We are experienced with all makes and models;
    Vent Axia Multivent/Sentinel Kinetic Multivent
    Greenwood Centair CMEV4/HT and CMF
    Nuaire MEVDC
    Titon CMEQ Plus
    Envirovent Spider
    Zehnder CMEV
    and many more...
  • Call on 033 0223 4180
    Send Serivce Enquiry
    Service price based on location/property type


Positive Input Service



More info
  • Full comprehensive service, clean and sanitisiation of your positive input ventilation system including filter change*
  • We are experienced with all makes and models including;

    Nuaire Drimaster/Flatmaster
    Vent Axia Pozidry/PureAir Home
    Envirovent AtMOST
  • Call on 033 0233 4180 to book or ask questions
    Prices vary based on location and property type