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Heating Services Certas Energy Reviews 

313
•
TrustScore 5 out of 5

4.8

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Review summary

Created with AI, based on recent reviews

Evaluating 123 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the skilled engineers for arriving punctually, maintaining a clean workspace, and remaining extremely knowledgeable about servicing various older boiler models. Consumers consistently emphasize the polite and friendly demeanor of the staff, noting that professionals take plenty of time to clearly explain necessary maintenance and ensure everything functions safely. However, some people mentioned occasional communication gaps, automated customer support replies, and instances where personal account details were not promptly updated. Reviewers also noted minor frustrations regarding unupdated records, automated bot replies, and general communication challenges when addressing problems.

What people talk about most

Service

Customers had positive experiences with service, frequently highlighting the efficiency, professionalism, and... See more

Staff

Clients share positive opinions on staff, frequently highlighting the exceptional expertise, efficiency, and... See more

Customer service

People report positive experiences with customer service, often praising staff for being warm, friendly, and... See more

Reviews shaping this summary

Rated 5 out of 5 stars

Jake Winter came on an emergency call out to fix our oil boiler then luckily soon after to service it. He was really helpful and did a really great job. Excellent work . Polite friendly and efficient... See more

Company replied

Rated 5 out of 5 stars

We had our boiler serviced by Mark Armstrong today. He has been maintaining our boiler for many years and as always was polite, efficient and informative. Before we first met Mark we were told we need... See more

Company replied

Rated 5 out of 5 stars

Oil boilers are complex beasts and need a good engineer who is thorough and detailed. Mark Armstrong of Certas has been servicing our boiler for many years. He is a superb engineer and combines his ex... See more

Company replied

Rated 5 out of 5 stars

Jake Winter from Certas has been servicing our boiler for years and has done so again Jan 6th 2026. Jake is time reliable, polite & courteous, informative and does a highly capable job, keeping our sh... See more

Company replied


Company details

  1. Boiler and Heating Service

Written by the company

From boiler maintenance and fuel monitoring to tanks and more, it’s safe to say we know a thing or two about looking after your heating needs.​ ​ When you choose Certas Energy Heating Services you choose:​ • Reliable, speedy, local service​ • Lovely OFTEC-registered engineers ​ • A vast stock of reputable parts with 12-month guarantees​ • FREE carbon monoxide checks ​ • Top quality replacement boilers from Worcester Bosch and Grant UK​ • Monday to Friday support​


Contact info

4.8

Excellent

TrustScore 5 out of 5

313 reviews

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4.8

All reviews

(313)

101 reviews in the last 12 months

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Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Great all round knowledge and skill

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.

16 March 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Thank you for your wonderful feedback. We are delighted to hear that you are happy with the service you received and truly appreciate you taking the time to share your experience.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

Professional and knowledgeable

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.

8 April 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Thank you for your wonderful review. We are delighted to hear that you are happy with the service you received and truly appreciate you taking the time to share your experience.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

Excellent service by Mark Armstrong


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.

8 April 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

We appreciate you sharing your positive experience. We're happy to hear that the service was helpful and thorough. Thank you for recommending our services.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

Mark Armstrong - punctual, efficient and polite

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.

7 April 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

We're happy to hear that you had a fantastic experience! It's great to know that you were pleased with our communication, punctuality, and service. Thank you for your long-term trust.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

Phillip Cooke serviced my boiler…

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.

31 March 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

We're happy to hear that the service was efficient and helpful! We appreciate your positive feedback regarding the useful suggestions provided for your system.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

Routine boiler service performed by…Phillip Cooke

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

31 March 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Thank you for your kind review. We are pleased to hear that you are happy with the service you received.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

Excellent service !

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

17 March 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Thank you for your kind review. We are pleased to hear that you are happy with the service you received.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

We had a boiler issue

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..

13 March 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

We're happy to hear that the engineer was prompt, friendly, and resolved the boiler issue efficiently, leaving the area clean. We appreciate your positive feedback!
Kind Regards
Certas Energy.

Rated 1 out of 5 stars

LATE oil delivery for the SECOND TIME!

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.

12 March 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Good afternoon – Thank you for your feedback and please accept our sincere apologies. To allow us to investigate fully, please email your account details or full address and postcode to Customer.Relations@certasenergy.co.uk and a member of our Customer Service Team will contact you directly. Kind regards, Certas Energy

Rated 5 out of 5 stars

Great service

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

10 March 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Thank you for your kind review. We are pleased to hear that you are happy with the service you received.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

The engineer today was very thorough…

The engineer today was very thorough and very pleasant

10 March 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Thank you for your kind review. We are pleased to hear that you are happy with the service you received.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

My elderly mother’s heating was not…

My elderly mother’s heating was not working properly leaving her upset and anxious, a quick call to Certas Heating Services and an engineer was arranged to call the next morning. Phillip Cooke arrived promptly and carried out a thorough check of the system and fixed the problem. Thank you Phillip for a great service!!

28 February 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Thank you for your wonderful feedback. We are delighted to hear that you are pleased with the service you received and truly appreciate you taking the time to share your experience.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

Thorough boiler service.

Mark Armstrong arrived early and serviced our outside boiler as he does annually. Mark did his usual thorough job and cleaned the boiler meticulously as ever.

2 March 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Thank uou for your kind review. We are pleased to hear that you are happy with the service you received.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

Mark recently serviced our boiler

Mark recently serviced our boiler, as he does every year, he’s always cheerful and polite, knows his job, would always recommend Mark.

27 February 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Thank you for your kind review. We are pleased to hear that you are happy with the service you received.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

To start this review I’m gonna say I…

To start this review I’m gonna say I phoned up at 9 o’clock and by 11:00 Mark had arrived , fixed the problem and he explained what had gone wrong. Everything was clean and tidy on departure. Absolutely phenomenal.
Jerry

2 March 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Thank you for your wonderful feedback. We are delighted to hear that you are pleased with the service you received and truly appreciate you taking the time to share your experience.
Kind Regards
Certas Energy.

Rated 5 out of 5 stars

We had our annual boiler service today…

We had our annual boiler service today from Certas energy carried out by Mark Armstrong. Mark provides our boiler service on a yearly basis and is excellent at his job. We highly recommend Mark, 5 stars, for his expertise and professionalism. Thank you Mark.

26 February 2026
Unprompted review
Rated 5 out of 5 stars

Mark Armstrong is the best!

Mark Armstrong has been servicing my boiler for the last 5 years and he is just fastidious! Heartily recommended, very few tradesman around that have such pride in their work…

17 February 2026
Unprompted review
Rated 5 out of 5 stars

Excellent service

Excellent service
Phillip Cooke quickly resolved an intermittent fault and our heating has been working perfectly again for the last 9 days.

6 February 2026
Unprompted review

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