COVID-19 Statement

Aria is respecting the government’s latest communications, in the effort to minimise the risk of cross infection and stop the spread of the disease COVID-19 between households.
Our directors, engineers & office staff have been instructed to remain at home, until further notice, with the following exceptions.


Shopping for basic necessities, as infrequently as possible
One form of exercise a day - for example a run, walk, or cycle - alone or with members of your household;
Any medical need, to provide care or to help a vulnerable person; and
Travelling to and from work, but only where this is absolutely necessary and cannot be done from home.


As such, the office operation has been suspended and operations are being undertaken where practical, in a home working situation.
Should you have any questions regarding this, or any other issue relating to Aria and its process, please do not hesitate contact us on the following numbers.
Contact details


• General Enquiries info@arialtd.co.uk
• Accounts Enquiries accounts@arialtd.co.uk
• Service & Maintenance enquiries 07775 898882 / 07780 672815
• Installation & Contracted works enquiries 07768 131011 / 07836 562400
• Any other enquiries 07768 131011 / 07747 632005


Lastly, we genuinely hope you and your families remain Safe & Healthy during this concerning era.
We thank you for your continued support during these difficult and unprecedented times.

House in winter

Winter is on its way.  It’s possible that your air source heat pump has either not been running over the summer or has not been running at full capacity.  In this blog we aim to provide you with a few hints and tips to make sure that when you come to rely on your air source heat pump it is working at its most cost effective and efficient.

  1. Make use of the temperate weather conditions.  Before you depend on your air source heat pump to provide both underfloor heating and hot water, give it a good run.  Turn up the thermostat for your underfloor heating and get the hot water running.  If the system is keeping up with the demand then it would indicate the system is in good working order.  However, if the system is not performing as expected, now is the time to address any potential issues.

    Daikin Altherma Air Source Heat Pump
  2. Check the outdoor unit.  Your heating system will have a unit, externally to your building  (also known as an Air Source Heat Pump).  Locate the system and ensure that the unit is free of debris.  An air source heat pump depends upon the free movement of air through the unit.

    Warning – before attempting to do anything to the External unit, make sure that it is turned off at the controls and the power isolator locally to the unit has been fully isolated – If in doubt – do not proceed any further, call us in.

  3. Check that the front and rear of the external unit is clear of any litter, leaves, weeds, grass cutting that may have built up over time. At the back of the unit is the ‘coil’.  This looks similar to the back of your fridge or maybe the radiator on your car.  It consists of metal pipework with many ‘fins’ to aid the transfer of heat.  Over time these fins can also become blocked with debris, for example spider webs, weeds, grass cuttings.  You can use a soft brush to remove the rubbish.  The fins on the coil are thin and sharp.  Make sure you are wearing gloves and that you do not bend any of the fins,  as this will have a detrimental effect on performance.  If the air coil is badly clogged up you should consider getting a professional to perform a ‘deep clean’.

  4. Look at any pipework that runs between the outdoor unit and your house.  This pipework should be covered in insulation.  If it is not, you should get it properly insulated.

  5. It may be worth looking at your current electricity tariff, you may be able to get a cheaper deal which will lead to savings as you rely on your Air Source Heat Pump more.   

Hopefully by this point you should have a good idea if your system is well prepared for the cooler months.

If you do need any assistance you can give us a call and we will be happy to assist.

Please make sure you have the following details:

  • Make and model of the ASHP
  • Is it serving underfloor heating / radiators / hot water or a swimming pool?

>Part 2< has now been published providing more advanced advice on preparing your Air Source Heat Pump for the winter.

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