MyBuilder user from Oval, London
Rating: 5 out of 5
Radiators come on in error when hot water is on, likely diverter valve
Excellent in every respect, communications, flexibility and efficiency of service.
Koncore Plumbing & Heating Ltd
Rating: 5 out of 5
Koncore Plumbing & Heating Ltd reviews (249)
Review from MyBuilder user from Oval, London Review left on 13 May 2026Review from MyBuilder user from New Cross, London MyBuilder user from New Cross, London
Review left on 23 Mar 2026Rating: 5 out of 5Heating engineer for F.27 error Vaillant ecoTEC plus.Good communication, new PCB was installed and fault corrected by a Vaillant verified engineer. 10/10Review from Francis, Bromley By Bow, London Francis, Bromley By Bow, London
Review left on 7 Mar 2026Rating: 5 out of 5Vaillant boiler F27 error(Updated on 9 Mar 2026)Mohamed got the job done with a minimum of fuss and with barely any wait. He's an absolute gentleman and I highly recommend him.Review from MyBuilder user from Highbury, London MyBuilder user from Highbury, London
Review left on 17 Dec 2025Rating: 5 out of 5Review from Kristina, St Johns Wood, London Kristina, St Johns Wood, London
Review left on 23 Nov 2025Rating: 5 out of 5Boiler annual check & flushing out inhibitorGreat service. Fast, polite, explained everything clearly. Would recommend to others.Review from Norman, Islington, London Norman, Islington, London
Review left on 13 Oct 2025Rating: 5 out of 5restart boilergreat and extremely prompt service from MohammedReview from George Evans-Thomas, Peckham, London George Evans-Thomas, Peckham, London
Review left on 5 Sep 2025Rating: 5 out of 5Replace printed circuit board in boilerEfficient and helpfulReview from Ysabel , Peckham, London Ysabel , Peckham, London
Review left on 17 Jun 2025Rating: 5 out of 5Gas safety check and quotes for renovation worksMo was great. He had same day availability and arrived on time. I enquired about completing a full boiler service whilst he was there and he was honest about the condition and it not being required saving me some money. He also took the time to explain everything he was doing. I’d definitely use him again for future worksReview from Filippo, Norbury, London Filippo, Norbury, London
Review left on 5 Jun 2025Rating: 5 out of 5Looking for a Gas Safe Registered Boiler EngineerMohamed was reliable, transparent, and efficient. Diagnosed and fixed the boiler quickly and for the agreed price.Review from ben, Hornsey, London ben, Hornsey, London
Review left on 15 May 2025Rating: 5 out of 5