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Heating Services Certas Energy Reviews 

323
•
TrustScore 5 out of 5

4.9

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Review summary

Created with AI, based on recent reviews

Evaluating 108 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the professional engineers for arriving right on time, working efficiently, and always maintaining a completely tidy workspace during annual boiler maintenance. Many individuals highlight the excellent communication, noting that friendly staff members clearly explain what specific repairs are needed and provide very helpful expert advice. Some reviewers were not happy with the administrative communication regarding scheduling and felt that customer support responses lacked genuine personal care. A few consumers also experienced frustrating scheduling delays and noted that automated customer replies failed to resolve recurring technical problems properly.

What people talk about most

Service

People report positive experiences with service, noting that engineers arrive promptly and handle boiler... See more

Staff

Users describe positive interactions with staff, frequently noting that engineers arrive promptly and are... See more

Customer service

Reviewers mention ambiguous feedback about customer service, with some clients appreciating staff members who... 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

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

Rated 5 out of 5 stars

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... 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

4.9

Excellent

TrustScore 5 out of 5

323 reviews

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4.9

All reviews

(323)

110 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

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
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!

11 February 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.

21 January 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.

10 February 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.

5 February 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

Rated 5 out of 5 stars

Oil fired boiler service

Mark Armstrong has serviced our oil fired boiler for nearly ten years and has always been careful, diligent and professional. Latest visit was no exception - thanks Mark!

5 February 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Good Morning Peter
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

Our regular boiler maintenance

Our regular boiler maintenance carried out efficiently by Phil Cooke. Identified some irregularities without pressure. Good experience.

4 February 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Good Morning Phil
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 our maintenance…

Mark Armstrong has been our maintenance engineer for a number of years and he never fails to impress me. He is brilliant at resolving problems with our boiler leaving us confident that the boiler will remain in good order until its next service.

4 February 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Hi Sydney
Thank you for your kind words. Customer satisfaction is very important to us, so it’s great to hear this.
Kind Regards
Certas Energy

Rated 5 out of 5 stars

Certas - Mark Armstrong service engineer

Mark Armstrong has been servicing our boiler for many years. He is thorough and tidy and keeps our now elderly oil fired boiler in tip top condition. Thank you Mark, we really appreciate your care.

3 February 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Good Morning Juliet
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

Problem solved

Phillip Cooke arrived as expected to deal with the oil boiler problem. The oil had run out and on refill the boiler refused to start. He set about exploring the situation. It was tricky and so he contacted the boiler manufacturer and sought advice. He got a solution to the situation from his own office and fired up the boiler. Phillip was personable professional and efficient.

2 February 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

Good morning Ms Scott
Thank you for your positive feedback. We’re so pleased to hear you had a good experience.
Kind Regards
Certas Energy

Rated 5 out of 5 stars

Broken old boiler

Broken old boiler, cold winter - Phillip Cooke came and sorted it all out in 40 mins. Very impressed and pleased with service and Phillip. Thank you.

30 January 2026
Unprompted review
Heating Services Certas Energy logo

Reply from Heating Services Certas Energy

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

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