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plumber in cardiff

Boilers, Heating, Plumbing & Kitchen Fitting

Cardiff Plumbers

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

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Cardiff Boilers

We are able to install, repair and service all boilers from Worcester to Ideal systems

Heating Engineer

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

Professional Plumbers

With other 15 years in the trade, we are one of the top rated plumbers in Cardiff.

Boiler Service Cardiff

Boiler Service Cardiff

Boiler Servicing is our bread and butter with our engineers having expert knowledge of all Ideal, Worcester, Viessmann, Vailant and Baxi Boilers. We provide installation of new boilers, repairs and servicing all in a cost effective manner.

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Why Choose NJ Harkus?

We are highly rated throughout South Wales and each of our team hold valid City and Guilds Qualifications. No matter your issue, our team have the expert knowledge to fix the problem in the most cost effective method.

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

Gas Safe Registered
Member of CIPHE
Expert Plumbing Knowledge

Local Cardiff Plumbers

As all of our team live and work in the Cardiff area, we aim to respond to your emergency plumbing or heating problems within the hour. Our vans are fully equipped with the tools and materials required to tackle any job.

Not only do we work in Cardiff but we also travel to the surrounding South Wales areas such as Barry, Radyr, Penarth, Barry, 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. Our reputation is showcased via our Google Reviews or across all social media platforms.

Heating Engineer Cardiff

We Carry Out All Work

Our Qualified Team are trained to a high standard to carry out Boiler InstallationsRepairs and Maintenance. All work carried out by N.J 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 jobs carried out such as new boiler installations to bathroom plumbing 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 (More Information About Gas Safe). The team at N.J Harkus Plumbing and Heating Ltd are Gas Safe and our Gas Safe Registered Number is 518700. We can be found on the official website here.

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.

Which Bathroom Suite To Choose?

Upgrading your bathroom suite will completely transform the bathroom and more importantly increase the value of your home. However, there are so many different designs available in can be difficult to find one that is suitable your particular bathroom and is within budget. As mentioned…

B Morgan

Very Impressed by the quality of work by Nathan and his team. Nathan provided myself with an instant quote over the phone, which was far cheaper than the competitors across Cardiff. The work was completed quickly and to a high standard. I would definitely use again.

H Jones

I own a large number of properties across Penarth and Barry, which required some remidial work so that the Gas Safety Certificates could be issued. Nathan and his team went around my properties and the whole process was hassle free. Great service.

J Jackson

Our boiler needed replacing as soon as possible due to having small children leaving at the house. The plumbers turned up early and the replacement boiler was installed before the children came back from school. Excellent service and would recommend to anyone looking for a great plumber!

C Scott

Water was leaking through the ceiling late on Wednesday evening. Within the hour as stated on the website, a plumber was here to fix the pipe. Can't fault the service at all, great job.

C Rich

Recently moved into a new house that had an ancient boiler still in use. As I am planning on staying at this new house for some time, I decided to get a modern boiler installed. Nathan turned up in his van on time and advised me on various options, which I then chose to my specification. The boiler was fitted and has been working brilliant ever since, thanks Nathan!


Working hours

24 Hours


07859 896019