Heating Services Certas Energy Bewertungen 

Very happy with my engineer Mark Armstrong
He completed my service in good time and explained what was required and needed also checked my oil tank for water which he’s never been done before
All in all a great job done

I’m very happy with the Engineer Kevin Forsyth who carried out the service to my Stanley Boiler. He did a thorough job and explained clearly why a few repairs/ small parts replacements were needed. Easy going and friendly man who was confident and knowledgeable.

Clear communication, on time and helpful with information.

Craig Vecchi did a great job, as usual. Would have been 5* if the office had sent me a reminder.

Gwasanaeth proffesiynol, ond gellid gwella’r cyfathrebu

Gwasanaeth ardderchog unwaith eto gan Mark Armstrong o Certas. Daeth yn gynnar, bu’n daclus, ac fe gwblhaodd y gwasanaeth boeler yn ofalus ac yn broffesiynol. Cymerodd yr amser i egluro’r gwaith hefyd—rhywbeth gwerthfawr iawn.

Yn anffodus, roedd y cyfathrebu cyn y gwasanaeth ychydig yn siomedig. Cafodd y gwasanaeth ei archebu dros y ffôn ar 19 Mehefin 2025,ond ni chafwyd e-bost cadarnhau fel y dywedwyd y byddai. Hefyd, ni chafwyd y galwad ffôn arferol y diwrnod cyn y gwasanaeth nac ychwaith neges testun, fel sydd wedi bod yn arfer ers blynyddoedd.

Manylion bach, ond maen nhw’n cyfrif. Gobeithio y gall Certas gryfhau’r ochr weinyddol i gyd-fynd â safon y gwasanaeth ar y safle.
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Professional service, but communication could improve

Mark Armstrong from Certas delivered excellent service once again. He arrived early, worked tidily, and completed the boiler service with care and professionalism. He also took the time to explain what had been done, which was genuinely appreciated—great to gain that insight.

Unfortunately, the communication beforehand let things down slightly. The service was booked by phone back on June, but no confirmation email was received, despite being told one would be sent. We also didn’t get the usual courtesy call or text message the day before the visit, which has been standard in previous years.

Small details, but they make a difference. Hoping Certas can tighten up the admin side to match the quality of the on-site service.

Diolch / Thanks

Mark Armstrong was on time, thorough, enthusiastic about his job and personable. Explained everything in language we could understand and a tidy job on our oil boiler. No complaints whatsoever.

Great service from Craig Vechi who is such credit to your company.
Not only a good service but engages so well with the client particularly with a rambling and talkative pensioner like myself.

Thanks

Booked certas via boilerjuice . Engineer Steve Novis was very efficient, answered all my queries happily and serviced parts that had been ignored by previous companies. Neat and tidy.
Friendly and knowledgeable

Another efficient service by Craig Vecchi. 👍 Thanks

Fantastic work carried out by Jake, as always, totally put my elderly mother at ease, from coming out to the boiler and fixing it when it had broken down to servicing it, all work professionally carried out. Jake is a credit to your company.

Once again the problem was fixed on our boiler with great knowledge from our engineer Riki Urquhart… great job!!

Jeremy Collins, the engineer, has serviced my mothers boiler for many years and is always professional, efficient and pleasant 😊

Riki Urquhart arrived at predicted time. Carried out annual service with no problems and no mess.

Always an incredible service from Mark Armstrong. Highly qualified professional whose knowledge of boilers and heating systems is second to none. Wouldn’t go anywhere else.

Very courteous and professional young man (Jake Winter). Done a first class job.

Great service from Jake. Repaired everything required and left in perfect stat. Also rang beforehand with warning or arrival. Thanks

Mark Armstrong came to fit my Fox Radar. He was on time, professional and took care to explain all I needed to know

Brilliant service from the team once again, from speaking the office to the guys who come and do the service, in this case it was Craig, awesome job, thanks guys.

As usual an excellent service from Mark Armstrong. He really knows his stuff.

Much more reliable than the oil delivery side, the engineer turned up on the appointment day and time. He was polite and friendly, carried out the boiler service with no problems.