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Boilers, Heating, Plumbing & Much More

Cardiff Plumbers

NJ Harkus Plumbing and Heating Ltd is an independent company that has been serving customers in Cardiff for more than 15 years.
We are highly rated plumbers in Cardiff and take pride in all the work that we carry out.

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Our Services

Whether you need to have your boiler serviced or fix a leaking pipe, our team of Cardiff plumbers are available all day, everyday at your convenience. Below you can find some of our services that we provide throughout Cardiff and the surrounding areas.

Excellent Reputation in Cardiff

We are highly rated plumbers in Cardiff that can be seen within all of the trade review platforms. No matter what plumbing or heating problem you may have, our team of plumbers Cardiff have the expert knowledge to fix the problem in the most cost effective method.

Our qualified team are trained to a high standard to carry out boiler installations, repairs and maintenance. All work carried out by NJ Harkus Plumbing and Heating Ltd is fully insured and there is no boiler job that we would decline or have not seen. All of our plumbers also each of our team hold valid City and Guilds Qualifications.

We have been working across Cardiff and the south of Wales for more than 15 years. Our plumbing services are always performed at the highest of standards and it’s the reason why we have hundreds of returning customers.

If there is any element of Gas when carrying out work, safety is paramount. The Gas safe register replaced CORGI a few years ago and is used to provide the public with individuals who are qualified to work with gas. The team at NJ Harkus Plumbing and Heating Ltd are Gas Safe and our Gas Safe Registered Number is 518700. We are also a member of the Chartered Institute of Plumbing and Heating Engineering.


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We take great pride in being the best emergency plumbers in Cardiff and aim to respond to your emergencies within the hour. All of our vans are fully equipped with the tools and materials required to tackle any emergency plumbing job in hand. We are also not just Cardiff plumbers because we also cover the surrounding South Wales areas such as Radyr, Penarth, Pontcanna, Rumney and further afield.

As leading Plumbers in Cardiff, we hold an excellent reputation across South Wales that we maintain with all jobs carried out by our team. Our reputation is showcased via our Google Reviews and across all social media platforms where we regularly post our work.

If you have a water leak, no heating or any other emergency, our team are on hand 24 hours a day to take care of any issues. There is a standard call out charge of £110 + VAT for out of hours calls instead of the standard £75 + VAT.

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Why Use NJ Harkus As Your "Go To" Plumbers in Cardiff


Professional Cardiff Plumbers

With over 15 years in the trade and an excellent local reputation, we are one of the top rated plumbers in Cardiff.

Whether we are fixing your toilet or installing a brand new boiler, we take great pride in our work and ensure that it meets your expectations. Our experience also means that there is no job that we won't be able to solve.

Fleet of Vans

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Registered Heating Engineer

All of our team of Cardiff plumbers are Gas Safe Registered (518700) and are qualified to work with gas. We are also a member of the Chartered Institute of Plumbing and Heating Engineering.

In our vans, we carry all of the tools and equipment onboard to ensure that any job can be safely completed onsite.

© N.J Harkus Plumbing and Heating Ltd
180 Ffordd James McGhan, Cardiff, CF11 7JU
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