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AOS Energy Efficient Heating Systems Limited

4.9

253 Reviews

Opening Hours
Today - 08:00–17:00
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–17:00
  • Saturday - Closed
  • Sunday - Closed
See customer reviews & leave a review

What is a Which? Trusted Traders Hertfordshire Trading Standards Approved Endorsement?

Which? Trusted Traders has partnered with Hertfordshire Trading Standards to create a Hertfordshire Trading Standards Approved endorsement. In addition to our standard trading standards assessment, this trader has had a DBS check and is subject to a Trading Standards intelligence check

About

AOS Heating has been one of the industry's leading experts in the Heating & Boiler industry for over 36 years.
Established in 1984, AOS are family run business who is proud of the reputation we have accomplished over the years.
AOS are a trusted company due to our outstanding customer service record, not only do we provide an honest, reliable service we also offer first class central heating, electrical & plumbing services for all.
Whether you need repairs or servicing to an existing heating system or you are interested in a completely new central heating installation we'll make sure you get the best results.
What's more AOS are also specialists in the most up-to-date heating advancements, including renewable & green technologies such as the latest energy efficient boilers and air source heat pumps. Whatever the job, you can rest assured that you are in expert hands.

What we do

  • Plumbers

    • Emergency plumbing services
    • Unvented cylinder installation and maintenance

  • Boiler, central heating and gas engineers

    • Boiler installation
    • Boiler repair
    • Boiler servicing
    • Radiators and central heating
    • Gas safety testing and inspection

  • Renewable energy

    • Air source heat pumps

My work

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

4.9
253 reviews
Customer Service
4.9
Quality
4.9
Value
4.8
Recommended

Recommended

by 99% of customers
Sort by
Prompt and Professional, V/Good
Customer Service
Quality
Value
Good company to work with very helpful in all aspects of the installations.
J M, Oxfordshire Posted on 27/11/2017 , work completed 27/11/2017
Recommended
Very good work
Customer Service
Quality
Value
Arrived on time. Very polite. Good job done. Left job clean and tidy. Very neat workmanship. Well pleased
Andrew, Hertfordshire Posted on 27/11/2017 , work completed 27/11/2017
Recommended
The trader replied (on 03/01/2018)
Hi Andrew Thanks for the great review, we are glad you had a positive experience with us. Thanks Charlotte.
Very pleased with my new central heating system
Customer Service
Quality
Value
I have recently had a new combi boiler and radiators installed by AOS in my ground floor flat. They removed the old electric storage heaters and water immersion heater from the property. The installation engineers were efficient, competent and tidied up at the end of each day. Although the quotation I received from them was not the lowest of the three I obtained, I am very pleased that I decided to use them (particularly because they used their own employees and did not subcontract). An issue with a new shower was also resolved without difficulty. I would be happy to use them again.
Andrew Holley Posted on 25/11/2017 , work completed 25/11/2017
Recommended
The trader replied (on 03/01/2018)
Thank You Mr Holley for your kind review. we are delighted that you are happy with the installation and are looking forward to completing the additional electrical work you requested next week. Kind Regards Charlotte.
Excellent service from AOS
Customer Service
Quality
Value
I have recently had a new combi boiler installed by AOS including the removal of the old system. From initial contact through to completion, the service has been efficient and the advice given, very useful. Installation team were competent and tidy. An issue with the original Honeywell controller was sorted out quickly. I believe the price paid was very competitive, excellent service.
Ian Sawyer Posted on 16/11/2017 , work completed 16/11/2017
Recommended
The trader replied (on 24/11/2017)
Good Morning Mr Sawyer, Thank you very much for your kind review. the issue we had with the faulty honeywell controller was something we have not experienced before but are glad we managed to get it sorted quickly for you :)
Installation of air source heat pump
Customer Service
Quality
Value
I have no hesitation in recommending AOS for their service concerning the installation of our air source heat pump. Their personnel spent considerable time with us discussing the technology when we were considering replacing our oil-fired boiler. Then when it came to the installation; the work was done efficiently, with very little mess left at the end of each day and their engineers were particularly courteous.
mrwest Posted on 08/11/2017 , work completed 08/11/2017
Recommended
The trader replied (on 24/11/2017)
Hi Mr West we are glad to hear of your positive experience with us and are glad you are happy with your new Air Source Heat Pump installation. Thank you very much for your feedback. The AOS Team.
Very efficient and courteous service
Customer Service
Quality
Value
More experienced engineers, excellent at advising and guiding less experienced engineers. All staff very polite and friendly. Engineers worked very hard. Always happy to take time to explain even though we had many questions! Head office staff always seemed to be looking after us and very keen to ensure we were happy with the service.
James Conway Posted on 08/11/2017 , work completed 08/11/2017
Recommended
The trader replied (on 24/11/2017)
Hi Mr Conway, i am very happy to hear that you are pleased with your new boiler system and the service you received from us here at AOS. Any questions in the future be sure to give us a call :)
Very professional job
Customer Service
Quality
Value
AOS installed a complete air source heat pump systems for us. From initial sales contact to completion and testing we found them to be thorough and professional. We were provided with detailed information tailored to our requirements, the installation was completed to a high standard by dedicated engineers who took great pains to ensure the work was conducted with minimum disruption to ourselves. The three fitters were great ambassadors for their company, we would definitely recommend your company to others.
Kevin L Posted on 07/10/2017 , work completed 07/10/2017
Recommended
The trader replied (on 27/10/2017)
Hi Mr Large Thank you very much for you kind review, we take pride in providing a professional yet friendly service and are glad you enjoyed the whole process along the way. we hope you enjoy your new Air Source Heat Pump :)
Happy customer!
Customer Service
Quality
Value
We had a new boiler and radiators fitted. The engineers were polite, efficient and professional from start to finish. The girls in the office were also really helpful. Ten out of ten service, will continue to use them.
Keely, Essex Posted on 03/10/2017 , work completed 03/10/2017
Recommended
Professional and thorough
Customer Service
Quality
Value
AOS staff did a brilliant job to trace and then fix a recurrent fault with our air source heat pump system. Having found what the issue was and following an ‘on-site' telephone conference between AOS and another company, it was agreed that the unit be replaced despite it being out of warranty. In all of this, AOS engineers turned up on time, they were clean and tidy in their work, and their admin/support staff kept us informed by phone. AOS did a great job sorting this out for us.
Martyn Posted on 02/10/2017 , work completed 02/10/2017
Recommended
The trader replied (on 27/10/2017)
Hi Martyn, we are so glad that we could help you with your faulty Mitsubishi Air Source Heat Pump. Even though we did not originally install the air source heat pump we are always happy to help a customer in need. All in all a joint effort my Mitsubishi and us meant a great result.
Well done
Customer Service
Quality
Value
They were prompt and gave a good 2 days work. They cleaned up, and left it all clean and tidy. Had new boiler put in. Old one taken out.
Irenie, Hertfordshire Posted on 26/09/2017 , work completed 26/09/2017
Recommended
The trader replied (on 27/10/2017)
Hi Irenie, thank you very much for your review, we are glad that our engineers displayed a great example of our very high standards.
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Standard network rate.