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plumber in cardiff

Boilers, Heating, Plumbing & Kitchen Fitting

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 and take pride in all the work that we carry out.

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Professional Cardiff Plumbers

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

Boiler Servicing

Our team in Cardiff have the experience to be able to install, repair and service all boiler systems.

Heating Engineer

All of our team of Cardiff plumbers are Gas Safe Registered (518700) and are qualified to work with gas.

Plumbers Cardiff

Qualified Gas Engineer Cardiff

Our team of plumbers in Cardiff are fully qualified to work with gas and have been doing so for many years. With expert knowledge, we are able to diagnose and repair all your plumbing, heating and boiler problems in a cost effective manner. We mostly work with Ideal, Worcester, Viessmann, Vailant and Baxi boilers but there is no job we will not take on.

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Excellent Reputation in Cardiff

We are highly rated plumbers in Cardiff and throughout the rest of South Wales and each of our team hold valid City and Guilds Qualifications. No matter what plumbing or heating problem you may have, our team in Cardiff have the expert knowledge to fix the problem in the most cost effective method.

We are also a member of the Chartered Institute of Plumbing and Heating Engineering and are fully Gas Safe Registered (518700).

Gas Safe Registered
Member of CIPHE
Expert Plumbing Knowledge

Emergency Plumber Cardiff

We take 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 job.

We are not only Cardiff plumbers, we also cover the surrounding South Wales areas such as Barry, 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.

Why Chooose NJ Harkus?

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.

We have been working across Cardiff and the south of Wales for more than 15 years. All of the jobs carried out are completed by a Gas Safe Registered team member. Our plumbing services are performed at the highest of standards and it is 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 N.J Harkus Plumbing and Heating Ltd are Gas Safe and our Gas Safe Registered Number is 518700.

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 that you may have. There is a standard call out charge of £95 + VAT for out of hours calls instead of the standard £60 +VAT.

Underfloor Heating

Investing into underfloor heating is a great method of heating a room without radiators or taking the coldness from a bathroom floor. They are a modern and high-spec feature that can be installed in pretty much every home. The most common areas to install underfloor…

The Stopcock Guide

The water stopcock is often referred to as the water stop valve and is used to shut off the water supply to your house. If you plan to carry out any work involving water, you will want to ensure that the stopcock is closed. Although…


Working hours

24 Hours


07859 896019