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Heating Services Certas Energy Reviews 

309
TrustScore 5 out of 5

4.8

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Review summary

Created with AI, based on recent reviews

Considering 147 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently mention that engineers arrive promptly on schedule and carry out routine boiler services with remarkable efficiency and professional skill. People consistently appreciate how polite, cheerful, and genuinely helpful the staff members are during every single home visit. Consumers also value the thorough explanations provided regarding ongoing boiler maintenance and any necessary part replacements. Some reviewers were not happy with communication issues and felt that customer support responses lacked proper accountability when things went wrong. Consumers noted occasional instances where appointment details were outdated or automated replies completely failed to provide any meaningful assistance.

What people talk about most

Service

Consumers find service to be positive, highlighting efficient and thorough annual boiler maintenance.... See more

Staff

Reviewers mention positive feedback about staff, highlighting that engineers are consistently polite,... See more

Customer service

Customers had positive experiences with customer service, highlighting very good communication 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

Phil Cooke telephoned to advise estimated time of arrival and arrived on time. He was polite, pleasant, cheerful and informative. He explained the function of the part he was renewing and showed me... 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


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

309 reviews

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4.8

All reviews

(309)

117 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

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.

March 31, 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.

March 31, 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.

March 17, 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..

March 13, 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.

March 12, 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

March 10, 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

March 10, 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!!

February 28, 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.

March 2, 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.

February 27, 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

March 2, 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.

February 26, 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…

February 17, 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.

February 6, 2026
Unprompted review
Rated 5 out of 5 stars

We have used Certas Energy for over 20…

We have used Certas Energy for over 20 years and Mark Armstrong has always serviced our boiler and AGA. He is an excellent engineer who is always professional and does a wonderful job.
Thank you!

February 11, 2026
Unprompted review
Rated 5 out of 5 stars

Mike was very efficient and…

Mike was very efficient and knowledgeable. He was thorough in checking our older boiler
He has a friendly, open manner and patiently what he was doing.

January 21, 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Good Morning Penny
Thank you very much for your kind feedback. We’re delighted to hear you were happy with our service.
Kind Regards
Certas Energy

Rated 5 out of 5 stars

Mark Armstrong has been my boiler…

Mark Armstrong has been my boiler engineer for 9 years. He is without doubt the most respectful and professional man I have let into my home. He always calls 10/15minuets before arriving, he is very respectful of my home, he is a clean worker and always lets me know what parts if any he has replaced. Mark is sociable but does not stand around, he takes pride in his work and keeps meticulous records of each service. I requested 7 years ago that he be the only engineer to attend my property as I respect his professionalism and how he works providing the highest level and quality of service.

February 10, 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Good Morning Jillian
Thank you for your 5-star review. We’re pleased to hear you had a positive experience with us.
Kind Regards
Certas Energy

Rated 5 out of 5 stars

Excellent service from everyone at Certas

Excellent service from everyone at Certas Heating Services when my oil fired boiler broke down, from the friendly and helpful staff in the office to the engineer Mark Poole. Everything was dealt with promptly and smoothly. I was kept fully informed throughout the process. Highly recommended.

February 5, 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Hi Barbara
Thank you for leaving this lovely review. It’s great to know you’re happy with the service you received.
Kind Regards
Certas Energy

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