Heating Services Certas Energy Avis 

The engineer Mark Armstrong was prompt and very friendly in manner this combined with his skill and experience make him an asset to the company. CERTAS.

The engineer was very courteous and explained to me why he had made some changes
Riki Urquhart

Excellent service by Certas. Booking engineer was very easy and when he arrived, Mark Armstrong did a superb job in sorting me out. I know I can rely on him as he always is very efficient. I can thoroughly recommend him and his company.

Jake Winter carried out my annual service was very polite, friendly and informative I recommend him.
Certas Energy have been a good company to deal with.

The engineer David was very helpful, knowledgeable and professional. Kindly answering all questions in lay person terms.

The engineer, Phillip Davey, was polite and helpful. He was professional and provided all the information I needed. He completed the service to my satisfaction.

Mark Armstrong has excellent customer service skills. His knowledge regarding myvm boiler was outstanding. He has a wonderful manner, explains what he is doing and goes into detail re any recommendations. Thank you Mark for looking after me and making sure the boiler works.
Kind regards. Michelle

Excellent service as always. It’s like seeing an old family friend when Mark visits now!

Richard,the engineer was excellent. Both in the way he serviced the boiler and sharing his knowledge.

Gareth turned up on time his usual cheerful self.
Talked him through my problem and he fixed it and showed me what to do if it happened again. Then got on and did the annual service.
Gareth has been servicing my boiler for 16 years and has always looked after us well.
No hesitation in recommending him to anybody. He is always happy and helpful

Very thorough , knowledgeable and helpful.
Professional, tidy and could help with all problems.
Polite and cheerful. Would recommend highly Gareth
for a boiler service.

Always a great service. Easy to book a time convenient to me. I see the same engineer every year (Ronnie Brown) which is great for continuity.

Stephen was absolutely fantastic. He arrived punctually, which immediately set a professional tone. His expertise was evident throughout the job—he worked efficiently, explained everything clearly, and ensured all safety checks were thoroughly completed. Stephen was courteous, tidy, and respectful of the space, leaving everything clean and in perfect working order.

It’s rare to find someone so reliable and knowledgeable. I wouldn’t hesitate to recommend Stephen to anyone in need of a trustworthy and skilled gas engineer. A true professional!

I have booked Certas for all my Oil Boiler needs going forwards in particular I have asked that Stephen attends.

Phillip Davey was my engineer and he came out for my annual service he was very professional and informative! He suggested I needed a replacement and was helpful in arranging that and is very thorough and friendly ensuring all my questions were answered! Highly recommend

Mark Armstrong has been serving our boiler for as long as we can remember. His thoroughness must have contributed to its longevity- it is nearly 30 years old. He respects our house as if it were his own and is always cheerful and chatty.

Super service from Riki. Very friendly and efficient.

Raymond Stewart arrived on time, friendly welcome. Listened attentively to an issue ive i had with a radiator first then carried out the service. Great local engineer

Had my Boiler serviced by Jake Winter today . Rang before he came .
He was very respectful towards my house even removing his shoes when he crossed the carpet .
He informed me what was wrong and what needed to be done in the future and right now . Spent a hour .
He was polite and informative.

Experienced engineer we’ve known for many years. Always good service, feedback and advice.

Gwasanaeth y Gwresogydd unwaith eto gan Gareth Thomas. Pob amser yn tro i fyny yn brydlon ac yn drwyadl wrth ei waith. Gwybodus a glen. Diolch