Cardiff Boiler Installation, Repair & Service

Whether you need a boiler service, repair or a brand new boiler installation, our team are Gas Safe registered and available 24 hours a day to work on all boilers throughout Cardiff.

Our team of Cardiff Plumbers are able to install regular, system and combi boilers and are very familiar with the Valliant, Viessmann, Worcester, Baxi, Ideal and Potterton branded boilers.

If you require a brand new boiler installation, we are able to provide you with a FREE quotation. If this is something you require, please complete the contact form below or alternatively you can get in touch with Nathan by calling 07859 896019.

The combi boiler is the most popular boiler installation due to it being both a water heater and central heating boiler combined. This means there is no need to have a separate water cylinder and it's generally more convenient for everyday usage. However, we do also work on a wide range of other boilers in Cardiff such as LPG systems for those that live in the rural areas of South Wales.

Boiler Installation Cardiff

The latest boilers are moving in-line with technology, which means they are becoming even more energy efficient. Our goal is to satisfy all of our customers' boiler needs and find the most cost effective solution to installing a new boiler.

New boilers can be professionally installed by our heating engineers at a competitive price. As mentioned above, we are able to provide a FREE quotation on installations but certain boilers may require a site visit for an accurate quote.

Boiler Repair and Fault Finding

When your boiler begins to malfunction, it can be very frustrating. Luckily, our team of heating engineers are able to take on any boiler repair. We often have enquiries regarding boiler fault finding, which our experienced gas safe engineers are always able to solve. This ensures you aren’t left in the cold and can remain comfortable in your own home.

If you require our boiler repair services, you can call us to explain the problem and we may be able to suggest a temporary fix over the phone. We'll then visit your property as soon as possible to perform the boiler repair at your convenience.

Why Use NJ Harkus?

Available 24/7 with an impressive 1 hour response time by our team in Cardiff.
FREE quotations are provided by Nathan on 07859 896019 or via email.
Installation is carried out by our team of experienced and qualified engineers.
All work can be completed at your convenience and with your specification.

Current building regulations state that any gas-fired boiler or replacement must be a condensing boiler due to the overwhelming improvements in efficiency. Although planning permission is rarely required for a new/replacement boiler, you should always check with your local planning authority if you live in a listed building.

Request A Boiler Quotation

Emergency Boiler Repair Cardiff

Boilers are known for being ticking time bombs and the average person may not know the tell-tale signs of a boiler breaking down. Boilers are also more likely to break down during the coldest part of the year and this can leave you without heat or warm water. The main reason for this is due to lack of use during summer, which causes the components inside the boiler to seize and breakdown.

We highly recommend having a boiler service before the winter season starts by one of our gas safe boiler engineers. This'll give you complete peace of mind during the cold winter months as well as reducing any expensive repairs bills in the future.

Of course, a boiler may break down due to many other reasons but we also provide an emergency boiler call out service. Our engineers will firstly ensure that your boiler is safe and then begin their diagnosis to repair the boiler.

If you ever smell gas from your boiler, do not hesitate to call us on 07859 896019. We are available 24 hours a day (where applicable) to respond to any boiler emergencies.

Please note that if you decide to cancel your new boiler installation once you've agreed a price and date, there will be a cancellation fee. The cancellation fee is 25% + VAT of the agreed price.

The reason for this fee is due to the fact that we are extremely busy and need to buy the boiler components for your job before attending. We also schedule your boiler installation in for the day when we could have been carrying out a service, repair or installation elsewhere.

Our boiler installation service in Cardiff is the most popular service we offer and our aim is to provide a 1 day installation in order to avoid any inconvenience. We can work around your routine and schedule a date and time for the boiler installation to occur in order to best suit your requirements.

As you can imagine, the price of a boiler installation varies from house to house. There may also be additional work required, which means it’s difficult to define a fixed price. However, as an approximation, for an average 3 bedroom house in Cardiff, we would charge anywhere between £1,900 to £3,500 for a new boiler installation. This quotation includes the removal of the existing boiler, supplying and installing the new boiler and any additional plumbing works required.

After the boiler installation is complete, the boiler is registered and commissioned on the same day.

The warranty that comes with our boiler installation service is determined by the model chosen. For example, some boilers come with a 5 year warranty whereas others come with a 12 year warranty. For further information regarding the warranty, feel free to get in touch.

Unlike the “big" energy companies, we are a family run business with the highest honest reviews in Cardiff and the surrounding area. We’ll always answer any queries quickly and are able to attend to your job on the same working day if required.

The most popular type of boiler that we install in Cardiff is a Combi boiler. However, other boilers that we install include a system, regular or even LPG alternatives.

Unfortunately, boilers do break down and require repairs as they get older. Some of the most common boiler repairs we carry out in Cardiff include low pressure, fan faults, gas valve faults, blocked condensate and so much more. If you have any issues with your boiler breaking down, it will often provide an error code which will allow us to carry out our diagnostics.

As you would do so with your car, servicing your boiler is highly recommended to ensure its running safely and efficiently. However, an additional reason to service your boiler on a regular basis is to comply with its warranty.

Due to the advancement in technology, many people are now also installing smart thermostats whilst using our boiler installation service. Some of the popular systems we install include Hive, Google Nest, Honeywell, Drayton and many others.

What Do Our Customers Say?

I have used Nathan extensively at my new home and professionally at my work premises too. Most recently, he installed a new boiler and radiators within three days of being asked for a quote. Prior to this, he has even responded to an emergency call to stop a leak at 9am on a Sunday morning as well as carrying out many other jobs such as boiler repairs and servicing. Nathan and his team are quick and professional - just what everyone wants a plumber to be. Andy Rowe

I cannot speak highly enough of Nathan Harkus and his excellent team and I recommend him unreservedly. Our boiler completely broke down and he was able to visit and advise me within 2 hours of the initial malfunction. He was then able to install a new boiler within 48 hours. Nathan and his team were friendly, helpful, hard-working and ultra-professional. We are now sitting in our toasty warm house and would never contemplate anyone else for any of our future plumbing and boiler servicing needs. Plumbing services at their absolutely best - thank you so much! Richard Caddell

SO happy with my new boiler! It wasn't planned, but I hadn't realised how much better this new Ideal one would be – I just had the best shower I've had in years! Nathan and his team were very prompt, friendly, professional and the service was extremely efficient. I'll 100% be contacting Nathan and Matthew again for future jobs and I highly recommend them 😊👍 Jayne Lovell

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Cardiff Boiler Service, Installation & Repair

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