Boiler Service Cardiff
Professional Boiler Servicing By Gas Safe Engineers
Protect your boiler with a professional routine service from our experienced Gas Safe engineers.
Book an Engineer →Your Local Plumber in Cardiff
We service boilers throughout Cardiff, helping homeowners maintain safe and efficient heating systems.
Gas Safe Registered (518700)
NJ Harkus is Gas Safe registered (518700), City & Guilds qualified and CIPHE members, with full public liability insurance for all plumbing, heating and gas work.
Highly Recommended & Reviewed
Our reputation for boiler servicing is built on experience, transparency, and long-term customer trust.
Professional Boiler Servicing in Cardiff
Servicing That Protects Your Boiler
Regular boiler servicing plays an important role in keeping your heating system running safely and efficiently. At NJ Harkus, we provide professional boiler servicing across Cardiff, helping homeowners maintain performance and reduce the risk of unexpected breakdowns.
Our Gas Safe-registered plumbers in Cardiff carry out thorough boiler services in line with manufacturer guidance and current safety standards. We check key components, test safety controls, and ensure your boiler is operating as intended, providing reassurance that your heating system is safe to use.
A typical boiler service by NJ Harkus includes:
- Inspection of internal components and safety devices
- Checks on pressure, seals, and connections
- Cleaning of essential parts where required
- Performance and efficiency checks
- Clear feedback on the condition of your boiler
Servicing helps extend your boiler’s lifespan and can highlight minor issues before they develop into more costly boiler repairs.
Does Your Boiler Need To Be Serviced?
Boiler Servicing Available Across Cardiff & Nearby Areas
We carry out boiler servicing throughout Cardiff and surrounding areas, including Penarth, Barry, Dinas Powys, Radyr, Roath, Pontcanna and Llandaff. As a local company, we are familiar with the boiler systems commonly found in Cardiff properties and provide a dependable, professional service across the area. If you are unsure whether we cover your location, please get in touch, and we will be happy to confirm.
Business Hours
24 Hours, 7 Days A Week
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We Are Highly Recommended in Cardiff & The Surrounding Areas
Types of Boilers We Service
Experienced With All Common Boiler Types
Our engineers service a range of boiler types commonly found in both domestic and small commercial properties. From modern high-efficiency boilers to older systems still in regular use, we apply the same careful, methodical approach to every service.
We work with leading manufacturers, including Worcester Bosch, Vaillant, Viessmann, Baxi and Ideal and regularly service:
- Combi boilers
- System boilers
- Regular boilers
- Condensing gas boilers
- Commercial gas boilers up to 50kW
All servicing is carried out in line with manufacturer guidance and current regulations, helping to maintain performance, safety, and, where applicable, warranty requirements.
If your boiler is too old or requires extensive repairs, we can offer a new boiler installation of any type listed above.
Why Choose NJ Harkus To Service Your Boiler
Trusted Locally For Good Reason
NJ Harkus is a family-run plumbing and heating company with over 15 years’ experience servicing boilers across Cardiff. Our approach is straightforward: perform the service properly, explain the findings clearly, and treat every home with respect.
All boiler servicing is completed by Gas Safe-registered engineers and in line with current safety standards. We take the time to check key components thoroughly and provide honest feedback on the condition of your boiler, without any unnecessary recommendations.
With over 1,000 five-star Google reviews, our boiler servicing is trusted by homeowners who value reliability, professionalism, and clear communication. Many of our customers return year after year for annual servicing because they know exactly what to expect.
Frequently Asked Questions
Our Boiler Service FAQs
How often should a boiler be serviced?
Most boilers should be serviced once a year to maintain safety, efficiency, and reliable operation.
Do we service boilers in commercial properties?
Yes, we service commercial gas boilers up to 50kW for small business premises and similar properties.
What happens if we find an issue during the service?
We will explain the issue clearly and discuss any recommended next steps, without pressure or unnecessary work.
Why should I service my boiler?
As you would with your car, servicing your boiler is highly recommended to ensure it runs safely and efficiently. However, another reason to service your boiler regularly is to comply with its warranty.
