AOS Energy Efficient Heating Systems Limited

When your heat pump was installed you were advised to upgrade radiators in your home but you chose not to proceed. It was made clear that we cannot guarantee room design temperatures if our recommendations are not followed. You were given 3 x free services which were carried out over the years, the 3rd service was completed 24/06/20 but we advised that the anti–freeze was low & should be topped up. We provided quoted but you chose not to proceed. On 25/02/21 you reported the system not reaching temperature & our service manager explained that you need to keep your thermostat in a room which is designed to react 21c if your thermostat is left in a room designed to 18c then the system won’t reach temp. You did not wish to take this advice & asked for a service instead. As all your FOC services had been used we explained that this visit would be chargeable. We suggested that you wish to take out a service cover plan as a service & labour are included. You decided not to & paid £150+VAT for a service upfront. When you booked you were told that if chemicals were required the charge would be £215+VAT. You were contacted the day before the service for payment & it was explained again that a top up would be £215+VAT. Once the service was completed it was confirmed that chemical was needed. You called to make payment but argued that you had previously been told £30. We explained there was a note on the system confirming that you were quoted £215+VAT but you put the phone down.

Hi David, Thank you for your review. AOS pride ourselves on being upfront and honest so we would always reduce our costs if not all the work was carried out. The same applies to the anti -freeze chemical, if a top up is not needed then we would never recommend for the sake of it. We are glad your experience was such a positive one. Kind Regards The AOS Team.

Thank you very much for your review. We will be sure to pass your comments of praise onto Max and his team. Kind Regards The AOS Team.

Thank you for your positive feedback. We are so glad to hear that you were impressed with the high level of service AOS provided throughout your heat pump installation journey. It is of upmost importance to us that every customers experience is positive. please do let us know if we can be of any assistance in the future. Kind Regards The AOS Team.

Hi Theo, Thank you for your review. We are very glad that we managed to get your tenants up and running in time for the Christmas break. Kind Regards, The AOS Team.

Due to a word limit our reply below has been reduced : Hi Mr Drew, As you are aware EPC's are carried out by independent assessors using the government tool & we have no control over the information documented within these EPC’s nor could we predict what efficiency will be calculated on a new EPC after an install. Although your EPC states that your hot water is rated has gone from ‘average’ to ‘poor’ your heating rating has improved from ‘average’ to ‘good’ along with the heating control improving from ‘good’ to ‘very good. The important thing to highlight is your system will actually be in ‘heating mode’ for an estimate of 75% of the time (13,207kWh) and the hot water only 25% (2,960kWh), these usage figures have been taken from your EPC. When you consider that your old oil boiler in heating was graded at ‘average’ & the new heat pump is now ‘good’ for heating this improvement to 75% of your overall energy demand completely outweighs the ‘poor’ grade for the 25% hot water usage. We have spoken to Elmhurst Energy the EPC accreditation for clarification and they have confirmed that when looking at air source heat pumps for hot water purposes, combined with a immersion boosts the system does not recognise the efficiency of modern heat pumps from previous inefficient models that required a immersion heater to top up the hot water which your system does not do. Due to the lack of update to the government data EPC’s are not a great reflection of the efficiency of a system.

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Hi Mrs Hanzi, Thanks so much for this review. Yourself & your husband were a pleasure to work for and we hope you enjoy your new heating system. Kind Regards The AOS Team.