Boiler Repair Harrow

Trust on Rowlen’s five-year expertise on all boiler repairs and services in Harrow. We deliver the fastest and most reliable 24/7 emergency boiler repair service across London.

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Experience Rowlen's Professional Service in Boiler Repair

Harrow attracts families and professionals thanks to its wide array of renowned educational institutions, abundant green spaces, and rich cultural diversity. Residents in Harrow strive for comfort and convenience especially when it comes to maintaining their home’s central heating systems, seeking after a trusted company whose services are backed by positive reviews and long-term experience in the industry.

Rowlen has been serving Harrow and the rest of London since 1974, taking great pride in offering high-quality service in boiler repairs, installations, and annual service. Our team of Gas Safe registered engineers and heating specialists carry out all services with the highest level of expertise and care. They specialise in a comprehensive range of gas boiler services that cater to both residential and commercial properties, ensuring that every heating system operates with safety and at peak efficiency.

With our heating engineers’ deep understanding of Harrow’s architectural characteristics—from the Georgian and Victorian homes on Harrow-on-the-Hill to the sleek, modern developments—our services are designed to not only fix emergency boiler problems but also to enhance energy efficiency, reduce energy bills, and extend the lifespan of your boiler.

Choosing Rowlen means choosing a business that is highly recommended for valuing safety and customer satisfaction above all. For reliable, efficient, and cost-effective boiler repair, look no further! We bring over fifty years of expertise to make sure that your heating system remains a reliable source of warmth and comfort no matter the season.

Contact us to experience the difference in quality of our services that only Rowlen can bring to your home.

Arrange Your Boiler Repair With Rowlen


Step 1: Diagnose

Our in-house trusted gas engineers will assess your boiler and diagnose the fault


Step 2: Quote

The engineer will, explain to you the fault and provide you with a cost for the repairs


Step 3: Repair

Repair/Replace any faulty components to get you warm again


Step 4: Completion

Make sure your boiler is safe and is functioning efficiently

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24/7 Emergency Boiler Repairs

Servicing your boiler regularly usually prevents frequent boiler repairs. However, other external conditions, such as the unpredictable London weather, can contribute to the malfunctioning of some components which could lead to a boiler breakdown.

Worry not! Rowlen provides immediate boiler repairs Harrow residents can rely on to address a boiler breakdown and cater emergency call-outs.

Situations that typically warrant urgent boiler repairs from your trusted Gas Safe registered engineers include:

Issues on Heating and Hot Water

Issues with heating and hot water in homes can stem from limescale buildup in condensing boilers, malfunctioning components, and system pressure imbalances, which all need boiler repairs and necessary adjustments by Gas Safe registered engineers.

Gas Leaks

These often result from corrosion, poor installation, faulty plumbing, lack of regular boiler servicing, or physical damage. Homeowners are advised to install carbon monoxide detectors to keep homes safe against the dangers of gas leaks.

Strange Noises

Strange noises that sound like rumbling, whistling, or gurgling often arise from kettling due to limescale build-up, air trapped within the system, low water pressure, pump malfunctions, or loose internal components. Leaving this issue unattended will result to more damage cost and hazard risks.

Loss of Pressure

If your boiler seem to be losing pressure, it is usually caused by several factors including leaks in the boiler system or faulty boiler. Optimal water pressure is key to efficient boiler operation. High pressure can lead to gas leaks while low pressure may cause cold radiators and insufficient hot water, making it hard to keep your home warm.

Frozen Condensate Pipes

This issue is common with condensing boilers and are primarily caused by sub-zero temperatures, resulting to sudden boiler breakdown. Contact Rowlen immediately to get your boiler back to functioning properly.

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How Much Does A One Off Boiler Repair Cost?

Our one-off repair services offer exceptional value for money, with costs varying based on your boiler type and location. Our office will ask a few simple questions to provide you with an accurate estimate.

Here is the standard cost of our boiler repair service in Harrow:


Boiler Repair First Hour
Commercial Boiler Repair First Hour
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Why Choose Rowlen

Transparent Pricing

With Rowlen, you can expect complete transparency when you request for cost estimates. Get upfront, fixed quotes with no hidden fees for all boiler repairs in Harrow.

In-House Engineers

We make sure that every boiler service will carry the brand of Rowlen. We don’t outsource our talent; instead, we employ local Gas Safe certified engineers who are dedicated solely to us, ensuring all our engineers deliver an excellent service compliant with Rowlen's known premiere standards that aim only for customer satisfaction.

Insured Services

All our Gas Safe qualified engineers in Harrow area are backed by comprehensive liability insurance and expert qualifications. They will be happy to show you their Gas Safe ID as soon as they arrive on your doorstep.

Local Knowledge

Our heating engineers are all equipped with the full-packed knowledge of the local area like the back of their hands, helping them deliver the heating service around local communities with ease. Our deep understanding of Harrow and its unique characteristics means we’re always right where you need us, without delay.

Expertise Across Various Brands

Our vast experience in providing heating service over fifty years has given us the expertise of working on regular and combi boilers of various brands including Worcester Bosch, Glow Worm, Ideal Boilers, Baxi Boilers, Vaillant Boilers, and more.

Full Warranty

Worrying about voiding your manufacturer’s warranty? Not with Rowlen. We select only the best from leading manufacturers like Vaillant, Worcester, Baxi, and more, ensuring your Harrow home’s boiler service leaves your warranty intact and your heating system in top shape.

What our customers say about us…

Gas Safety Check, Boiler Service and Gas Certificate

5 Stars

A very professional and punctual service from the moment I engaged with them to arrange for the engineer to come in...


Gas Safety Checks

5 Stars

Gavin completed the annual gas safety work for me today and exhibited remarkable efficiency and cleanliness. I highly recommend him for any work you may need.


Boiler service and gas safety check

5 Stars

I had Rowlen Boiler Services perform a service on my boiler, and I couldn’t be happier with the results. Their engineers were friendly, professional, and highly skilled...


Cooker Installation

5 Stars

I received exceptional and timely service from Charlie, and this is the second time I have used his services.


Boiler break down

5 Stars

I recently experienced the remarkable service of Rowlen Boiler Services when I encountered an issue with my boiler. Their prompt response and ability to fit me in for a same-day appointment...


Fantastic Boiler Servicing

5 Stars

Fantastic experience with Rowlen. Got back to me within 24 hours with a few dates and times. Engineer came on time...


Installing a pool boiler

5 Stars

A really great service from start to finish. Easy to speak to at the outset to arrange a visit from an engineer. He came up with...


Installed a new swimming pool boiler.

5 Stars

I chose Rowlen because they were very useful on the phone before installation, taking me through my requirements and recommending...


Boiler installation and relocation

5 Stars

Rowlen Boiler service was great from start to finish. Very friendly and professional response from Lara in the office. The customer service...


Gas Heating Installation

5 Stars

Charlie friendly but also prompt and highly knowledgeable. He proved to be a really nice guy to work with. Throughout the process, his communication was excellent...


New boiler installed

5 Stars

Work was carried out at my elderly Mothers house . The engineers were very kind and respectful, they cleared up before thy left each evening...


Boiler annual inspection and smart thermostat installation

5 Stars

Easy communication and very reliable service both times, with both engineers. Very happy with the service provided.


Boiler Servicing

5 Stars

Excellent Communication, Friendly and Easy to Work With. Highly Professional and Prompt. Would Definitely Choose Their Services Again.


Leaking pipe

5 Stars

Just wanted to say how impressed I have been with Rowlen Boiler Services. I initially contacted them about a boiler service which was great but recently I had a leak...


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Frequently Asked Questions

  • What should I do before the heating engineers come?

    For a smooth and hassle-free service, make sure entry is facilitated especially if you live in a building with restricted access. Before the boiler service engineers arrive, clear any obstructions around your boiler and secure pets or children outside the range of the work area for safety purposes.

    If you suspect a gas leak, ventilate the area well without using electrical switches. Also, take into consideration that the engineer has unobstructed access to your home’s water and electrical supply.

    Most importantly, make sure someone is available to grant access to your home and have the warranty documents or service records ready for review. List any issues you’ve noticed with your system beforehand, including the make and model of your boiler, to assist in diagnostics. Think of any questions you might have regarding the repair or maintenance of your boiler.

  • Can my boiler be repaired in one visit?

    Repair times may vary based on the issue. Minor repairs can often be completed within an hour, while more complex issues may take longer. We’ll always provide a fixed price and inform you of the duration upfront.

    Our Gas Safe registered engineers strive to complete boiler repairs on the first visit. However, complex repairs or those requiring specialized parts may take longer. We offer guidance and will keep you fully informed throughout the process.

  • What should I do if I need parts for my boiler?

    Given the high demand for boiler maintenance and repairs, our vans are well-stocked with common parts to ensure prompt repairs and replacements. If additional parts are required, we offer competitive deals, including the cost of parts, to address a boiler fault efficiently. If the needed part is unavailable, we can always schedule the additional repair for another day.

  • Do you use original manufacturer parts for all the repairs?

    Yes, we strive to use original manufacturer parts wherever possible to ensure the best quality and compatibility with your boiler. In cases where original parts are not available, we use high-quality, compatible alternatives.

  • What happens if my boiler cannot be repaired?

    On the rare occasion that your boiler is deemed beyond economical repair, we will provide you with all the necessary information and options. This might include a new boiler installation, for which we offer competitive pricing and advice on the most ideal boiler and most energy-efficient models to suit your needs and that will help you save money in the long run.

  • How can I prevent frequent boiler repairs in the future?

    An annual boiler service is key to preventing future repairs. Although it does not completely make your boiler resistant to a fault, getting your boiler serviced regularly can help identify and address minor issues before they escalate, ensuring your boiler operates efficiently and reducing the likelihood of unexpected breakdowns.

    If your boiler keeps breaking down more frequently as it should and if continuously repairing it will be more costly than necessary, you may have to start checking out new boilers and consider buying a boiler replacement.

  • What should I do if my boiler is not heating my home evenly?

    If your boiler is not heating your home evenly, it could indicate issues with circulation or blockages in your system. Rowlen’s experienced technicians can diagnose and resolve such issues, ensuring your heating system distributes heat evenly throughout your home.

  • Does Rowlen offer services for commercial properties in the Harrow area?

    Yes, we do not only cater boilers in residential homes. Rowlen extends its expertise to commercial properties. We understand the unique needs of commercial heating systems and offer tailored solutions to ensure your business remains safe and comfortable.

  • What immediate action for gas leak or carbon monoxide poisoning should I take?

    If you smell gas or suspect a gas leak, your first step should be to open doors and windows to ventilate the property. This helps disperse the gas and reduce the risk of harmful effects like carbon monoxide or gas poisoning, as well as the risk of fire or explosion. Call the gas board on 0800 111 999.

    If you suspect carbon monoxide poisoning, and someone is showing signs or has collapsed, immediately get them into fresh air outside. Call 999 right away and request an ambulance. Even if the symptoms are mild or unclear, seek immediate medical advice. Visit your doctor or go to the hospital as soon as possible. Inform the medical staff that you suspect CO poisoning so they can perform the appropriate blood or breath tests.

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