for Air Conditioning, Heat Pumps and Solar Systems

Regular Maintenance

Pre-planned servicing for optimal performance

Our qualified and accredited engineers can provide regular maintenance and servicing which is an essential and cost-effective way to ensure the smooth, reliable and efficient operation of your heating and energy systems. Please select your preferred option from the selection below to find out more:

Air Conditioning Heat Pumps Solar Thermal Solar PV

Emergency Call Outs

Unexpected system breakdown or emergency?

In addition to our pre-planned preventative maintenance and servicing packages we also attend one-off service and urgent call out visits. If you need advice or a visit from one of our fully-qualified trained engineers please do not hesitate to contact us.


Air Conditioning Servicing

A cost effective way to ensure smooth, reliable and energy efficient operation

Pre-Planned Maintenance

As with most electronic equipment it is recommended servicing is carried out regularly in order to ensure the system maintains is its optimal running efficiency in terms of reliability and operation.

In a productive office, it is understandable that the servicing of your air conditioning system does not always take priority. We all have busy working agendas. We recommend however, that taking the decision to act sooner can save you both hundreds of pounds in downtime and call out fees.

Our bespoke pre-planned preventative maintenance visits which are available on a yearly basis would substantially help reduce the chance of a breakdown occurring and maintain your system manufacturer’s warranty*.

You wouldn’t run your car without a service or an oil change and nor should you with your air conditioning.

*Assuming your system is within the manufacturer’s warranty period.

7 Year Comprehensive Insurance

Abel Environmental is proud to be affiliated with Mitsubishi Electric as a Business Solution Partner. This qualification status enables us to offer up to a 7 year fully comprehensive parts and labour warranty on Mitsubishi Electric air conditioning products we install and subsequently maintain.

Common Air Conditioning Problems

The main symptons

Many of the day-to-day air conditioning problems we encounter are caused by a lack of regular maintenance. We have listed below what we believe to be some of the main symptoms.

If you experience any of these issues please do not hesitate in contacting us to arrange an inspection, repair or service.

One of the most common breakdown calls we receive are related to a system leaking water. There are two possibilities for a unit leaking one of which is the lack of regular servicing or condensate pump failure. This kind of breakdown is easily repaired and is achievable within the first hour on site.

Please call our team to arrange an engineer should you be experiencing the above.

If you feel that your air conditioning system is not performing at is optimal level of efficiency this may simply be that the unit has not been regularly maintained or serviced. The unit(s) could also be extremely dirty causing lack of performance. Having the system deep cleaned is often enough to resolve this problem.

However, it could also imply you have more serious issues – such as a refrigerant leak. A refrigerant leak requires a more in-depth investigation in order to resolve. Please call our team to arrange an engineer should you be experiencing any of the above.

If you experience your air conditioning freezing up and possibly dripping water onto the floor, you will require an engineer to attend site. We can check if the unit requires a deep clean, or if the refrigerant system is leaking and report our findings. If the unit is dirty, then it will be unable to ‘operate’ correctly, which then means the chilled air cannot escape into the room so the unit consequently freezes.

The same effect happens if the system has a refrigerant leak. The unit will eventually fail and may result in a replacement unit being required. Please call our team to arrange an engineer should you be experiencing any of the above.

Air conditioning units produce condensate (water), and this runs inside the units and is eventually removed from the system. This condensate mixed with ever-changing temperatures can create bacteria on the coils. Having the unit serviced regularly with the correct chemicals not only removes these smells but makes the system more efficient.

When it feels like the flow of air from the unit is not as powerful as before it might need a simple adjustment of the fan speed on the controller, or it could be a faulty fan motor especially if it sounds noisy. If the filters on the indoor unit are dirty, or grime has attached itself to the fan blades, it will require either a general clean or possibly a deep clean depending on the severity of the problem. Our air conditioning engineers can repair units or service them typically the same day we are called.

For a system to run at optimum performance, it needs to be able to breathe freely. If the air conditioner is blocked with muck and grime, then it has to work a lot harder to achieve the same amount of cooling or heating. The more blocked the air con unit is, the more electricity it will draw. Having the unit serviced regularly, therefore, lowers energy consumption, lowers repair and maintains manufacturer’s warranty.

General Air Conditioning Maintenance Checklist

We have highlighted below a short list of the some of the items which require checking during a normal air conditioning service visit.

Indoor Units

  • Clean filters
  • Clean evaporator coil
  • Check drip tray for dirt and debris
  • Clean and test condensate pump (where fitted)
  • Check all air on and air off temperatures in both cooling and heating
  • Check controls operation

Outdoor Units

  • Inspect and Clean Heat Exchanger
  • Check Visible signs for refrigerant leaks
  • Check pipework and lagging integrity
  • Check drip tray for dirt and debris
  • Check all air on and air off temperatures in both cooling and heating
  • Check electrical connections and tighten as necessary

Book Your Air Conditioning Service Today

Arrange your initial site inspection today and we will create your bespoke programme and take care of the rest.


Heat Pump Maintenance

Achieving the maximum performance from your heat pump system throughout its working life

We believe that by investing in a planned preventative maintenance programme you can ensure that your equipment operates at its maximum efficiency coupled with optimum reliability and reduced running costs. Relying on a reactive strategy is a short term solution that can prove costly in the long term.

We recommend that your heat pump is serviced annually to ensure you comply with our warranty conditions and also to meet the requirements of the Renewable Heat Incentive (RHI) Scheme should this be of interest.

AES has a range of service and maintenance packages to support your heat pump system. Whilst it is rare for our customers to experience no heating or hot water we can offer our expertise providing affordable peace of mind.


Benefits of our Heat Pump Service & Maintenance Plans

  • Premium service levels
  • Complements and maintains equipment warranty
  • Prolongs the life of your heat pump system
  • Ensures that the heat pump is operating at maximum efficiency
  • Offers complete reassurance

Annual Heat Pump Service – to maintain warranty on the Ecodan system:

  • Clean evaporator coil
  • Clean magnetic filter
  • Remove trapped air
  • Check primary pressure
  • Check flow rate
  • Check controller settings
  • Check glycol (anti-freeze) level


Annual System Service – The above plus:

  • Check immersion heater function
  • Check function of unvented safety equipment
  • Charge expansion vessel

Book Your Heat Pump Service Today

Contact us today and we will arrange your annual service and maintenance plan.


Solar Thermal Maintenance

A regular service keeps your system performing optimally

Having a solar thermal service can keep your system performing optimally. With extensive experience in the design, installation and maintenance of solar thermal systems over the years we have gained a good understanding of what is required to keep thermal systems operating correctly.

Most solar thermal systems will require a service every 3 – 5 years depending on the system design.

During a Solar Thermal service we would carry out the following system checks:

  • Check Glycol strength for antifreeze protection
  • Check colour of Glycol
  • Check pumps are in working order
  • Ensure pipework lagging is in good condition
  • Check system pressure
  • Check pressure relief valves
  • Check pumping station is set correctly (providing we have the Design Specification)
  • Check flow rates
  • Visual inspection of solar thermal panels

Book Your Solar Thermal System Service Today

Arrange your solar thermal service today and we will take care of the rest.


Solar PV Maintenance

Required just once every 3 years for optimum efficiency

One of the main benefits of Solar PV systems is the lack of moving parts which in turn means they don’t require a huge amount of work to keep them running efficiently. However we would recommend that a system health check is carried out every 3 years as systems that are not inspected over this time period could be up to 30% less efficient than when they are new.

Our Solar PV Maintenance packages will ensure that your system is safe and performing to its full capability.

During a maintenance visit we would check the following:

  • Check the inverter for error messages
  • Check the functional operation switches
  • Do a complete shut-down test of the invertor
  • Do a full test and inspection on the AC side of system
  • Carry out a visual check of the modules and advise should panel cleaning be required

Book Your Solar PV Service Today

Contact us today and we will arrange your annual service and maintenance plan.