Denner Heating & Plumbing is an independent local tradesperson covering Annan.

1. KKaren Renwick★★★★★

   Jake came out to my son???s regarding a problem with the shower but identified something wrong with the hot water tank. He was very friendly, polite and professional. Wouldn???t hesitate in recommending Denner heating.

   Google review · 30 Jun 2026
2. JJohn Galloway★★★★★

   Excellent Service from start to finish, After trying to find a company to quote and replace our commercial boilers for nearly a year we found this company who responded to our enquiry quickly efficiently and then the installation even brought forward by 1 week as our boiled failed. The whole team were courteous and very professional and were very fair on pricing, all is just great for small business such as ours. Highly recommend this company and all of there team. Thank you very much.

   Google review · 27 May 2026
3. jjon norris★★★★★

   Denner has exceeded my expectations far more than any other company I have dealt with ??? from the very first phone call I made to them. The Office staff are exceptional: friendly and efficient. I had four Oil boilers that needed sorting and servicing and Jason had them all sorted in record time. So pleasing to have a company that I can rely on and trust.

   Google review · 12 Apr 2026
4. KKaren Thompson★★★★★

   We had Jake Denner come out to our property to do a survey of what needs to be done after we had been badly let down by other people (independents) if we???d known then what we know now we would have engaged with this company in the first place , Jake did a thorough site survey with voice notes of what needed to be done very professional so although we have had a extremely good experience up to now we haven???t yet had the work done which starts this week. I will endeavour to update my review once works are completed but I am confident it will be done to a high standard. Thank you.

   Google review · 5 Apr 2026
5. RRoger Driscoll★★★★★

   I recently moved into a house which, to say the least, has a few quirks in terms of the plumbing, electrics and the workmanship of previous trades. Enter Denner Plumbing & Heating ??? in the form of Callum, Lewis and Jason. Between them they installed a brand new gas combi boiler, resolved plumbing issues affecting the taps and washing machine, and identified and advised me on additional circuitry that had incorrectly found its way into the boiler???s fused spur. The difference has been transformative. What particularly impressed me was their methodical approach to troubleshooting legacy problems rather than simply carrying out the boiler installation and leaving the rest. They were professional, clear in their explanations, and thorough in ensuring everything was left working properly. All in all, an excellent job and a very reassuring experience.

   Google review · 28 Feb 2026

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