Heating Services Certas Energy Reviews 

Mark Armstrong is a great lead engineer. He has been servicing our boiler for over 25 years and always does a great job. I now ask for him as I know he'll be reliable, friendly and efficient.

We were so pleased with the service from Certas Energy, our boiler was attended to by Jake Winter, he was fantastic coming out on a bank holiday! The service was brilliant, and had us up and running in no time! I recommend Jake and Certas Energy to anyone.

Mark Armstrong came to service our boiler today, and replace a faulty pipe to our oil tank. He did a great tidy job. Recommended, and will use again.

Oil boiler service by Mark Armstrong was completed today. He was amazing, totally professional and explained everything he was doing. So impressed with his professionalism. Highly recommend this company and will be using them forever!

Certas Engineer Mark Armstrong serviced my boiler. He was professional and friendly and did a great job, tidy and efficient.

Our engineer Mark Armstrong has serviced our boiler for years, our boiler is 30+ yrs old and hes kept it running with no problems. Thanks Mark!

Phillip did an excellent job especially going out of his way to reach a difficult oil tank filter.Left every thing neat and tidy.

Philip Cooke is helpful and thorough, as usual.

Phillip the Service Engineer was very thorough, explained what he had done and what parts he fitted.

Mark Armstrong is always bright and cheerful, on time and explains everything clearly. Any problems with the boiler are dealt with effectively and he is an extremely tidy/efficient worker.

I could smell oil which wasn’t a good sign, so I contacted Certas ( who I also get the annual service with) and they came out very quickly.
The engineer, Phillip Cooke, was very knowledgeable, explained why and what needed doing and replaced the pump there and then. It now runs much smoother and most importantly no leaks. Phillip was able to demonstrate great all round knowledge and put my mind at ease. Could not been better, was on time and very informative.

Mark is always polite, efficient and professional. He has been servicing our boiler for years and I have always found him to be prompt, personable, knowledgeable and helpful. Thank you for the excellent service you give.

Mark Armstrong had serviced our boiler for many years, he is always polite, very helpful and knowledgeable. He undertakes a very thorough and efficient job. Would highly recommend Mark.

Good communication before the visit. Then on time for the appointment . Polite. Enthusiastic. No mess. Successful. Mark Armstrong has been servicing and occasionally repairing the boiler for over a decade. Fantastic.

Phillip Cooke serviced my boiler yesterday. He was efficient, friendly, and very knowledgeable about the system which is quite old. He made useful suggestions and insights.
Certas always does a good job.

Routine boiler service performed by Phil Cooke. He was efficient, courteous and very tidy.

Phil was very helpful and extremely knowledgeable. He sorted the issue with minimum fuss, and very quickly. Highly recommended Engineer.

We had a boiler issue, engineer Philip Cooke arrived promptly, very friendly & polite,
Found the issues & replaced damaged parts & left area clean & tidy
Fabulous engineer indeed..

I’m really disappointed with the service from Circus Energy. Our oil delivery arrived at least a week late, which is unacceptable when you’re relying on it to heat your home. What makes it worse is that this is the second time this has happened.

There was no apology from an actual person, just a generic automated response that didn’t address the situation at all. When you’re paying for an essential service like heating oil, you expect reliability and at the very least some proper communication when things go wrong.

Being late once might be understandable, but repeating the same issue without any real customer support or accountability is frustrating. Unfortunately, based on my experience, I wouldn’t recommend them.

Our engineer - Phillip Cooke - was politely, friendly, timely and fixed a number of minor issues that would have caused more problems if left unattended. Exactly what you want from a service