N.J Harkus Plumbing and Heating Ltd is an independent local tradesperson covering Cardiff.

1. JJan Morris-Kreishan★★★★★

   Very prompt response and efficient service. Engineer attended within 24 hours, swiftly identified cause of leak from washing machine and successfully replaced and fitted damaged part within an hour. Very considerate and reassuring attitude throughout. Would definitely use again and highly recommend this company.

   Google review · 15 Jul 2026
2. TTony W.★★★★★

   Nathan called out same day to look at our boiler. Confirmed we needed to replace it. Booked us in the following working day. Matt arrived on time and worked throughout the day. Did a very nice job installing an Ideal and tidied up our pipework in and out. Cleaned up thoroughly, tested and talked me through the new boiler ops. Excellent job. Recommended. ????

   Google review · 13 Jul 2026
3. MMike Reese★★★★★

   I had a fantastic experience with N.J Harkus Plumbing and Heating Ltd. The team was professional, punctual, and incredibly knowledgeable from start to finish. They quickly diagnosed the issue, explained everything clearly, and completed the work to a very high standard. The pricing was fair, and they left the area spotless when the job was done. It's refreshing to find a company that genuinely cares about customer satisfaction. I highly recommend N.J Harkus Plumbing and Heating Ltd to anyone looking for reliable, honest, and high-quality plumbing and heating services.

   Google review · 29 Jun 2026
4. nnosnikmot leinad★★★★★

   Nathan and Steve fitted our new water cylinder today, great experience from start to finish. Had to call Nathan later in the day with a query and he talked us through it and put us at ease. Will happily use again for any plumbing needs

   Google review · 3 Jun 2026
5. JJon Pryce★★★★★

   Fantastic service by Nathan and the team. Installed a new boiler for me last year and the communication (especially response times) was excellent from start to finish. Nathan arranged for the boiler to be serviced, all of which was very easy to arrange. Really hard to find reliable people that communicate well, turn up when they say they will and get the job done to an excellent standard but these guys have all of that covered. Would highly recommend!

   Google review · 2 Jun 2026

All reviewsGoogle Maps ↗

• IdentityWho they are, confirmedNot published yet
• InsuranceCover type and expiryNot published yet
• CredentialsTrade registrations and cardsNot published yet

Each check shows exactly what was checked and when. No vague “approved” badges. How checks work ↗