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How Often Should You Service a Boiler?

Gas boilers are an essential part of many households, providing warmth and hot water. To ensure their efficient operation and longevity, regular and often boiler service is important and often a requirement during warranty periods.

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But how often should you service a boiler?

A boiler should be serviced once a year, and in this article, we will explore the reasons for the recommended frequency of boiler servicing and discuss its importance in maintaining a safe and efficient heating system.

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The Importance of Getting a Boiler Serviced Once a Year

In the UK, the importance of regular boiler servicing cannot be overstated. There are several key reasons why you should have your boiler serviced regularly.

  • For Safety: Regular boiler servicing ensures the safety of your household by detecting and addressing potential safety risks like gas leaks or carbon monoxide emissions. It protects your family from harm.
  • Keeping Efficiency: Servicing your boiler improves its efficiency by removing dirt, debris, and mineral deposits that can hinder its performance. This enhances its energy efficiency, resulting in lower utility bills.
  • Creates Longevity: Regular boiler service extends the lifespan of your boiler by identifying and resolving minor issues before they become major problems. It saves you time and money by preventing costly repairs or premature replacements.
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How Often Should a Boiler Be Serviced?

You should have your boiler serviced every year. After a new boiler installation, having your boiler serviced every year, is essential for keeping your boiler in optimal condition and ensuring its reliable performance.

Having your boiler serviced annually by a fully qualified Gas Safe heating engineer is one of the most important homeowner expenses.

An annual service helps identify any potential issues early on, reducing the risk of unexpected breakdowns and ensuring that your boiler operates safely and efficiently.

It’s best to prioritise your annual boiler service, ideally before the colder months when your heating system is heavily used. By taking proactive measures and scheduling regular servicing, you can enjoy uninterrupted heating and hot water, while also avoiding the inconvenience and potential hazards of a faulty boiler.

Remember, prevention is key. Don’t wait for a breakdown to occur. Take the initiative to schedule your annual boiler service today and benefit from a well-maintained and efficient boiler.

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Factors That Affect How Often You Should Service a Boiler

While annual servicing is the standard recommendation, certain factors may influence the frequency at which you should service your boiler. These factors include:

  • Age of the Boiler: Older boilers may require more frequent servicing to address the wear and tear that comes with age. If your boiler is more than ten years old, you might consider more frequent servicing to ensure its continued reliability and efficiency.
  • Warranty Requirements: If your boiler is under warranty, it’s important to adhere to the manufacturer’s servicing requirements. Failure to do so could void the warranty, leaving you responsible for any repair or replacement costs.
  • Usage Patterns: The frequency at which you use your boiler can also impact the servicing schedule. If your boiler operates for longer periods or experiences heavy usage, it may require more frequent servicing. Increased usage puts more strain on the components, and regular maintenance becomes even more critical to ensure its optimal performance.
  • You have an inefficient boiler: : If your boiler is older or less efficient, it may require more frequent servicing to ensure its proper functioning and address any potential issues.

It’s essential to consider these factors in conjunction with the manufacturer’s recommendations and seek professional advice if you’re unsure about the servicing frequency that suits your specific boiler.

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Signs That You Need a Boiler Service

While adhering to a regular servicing schedule is very important, there are certain signs that indicate your boiler may require immediate attention. Here are some common indicators that your boiler needs servicing:

  • Strange Noises: Unusual noises, such as boiler kettling, banging, whistling, or gurgling sounds coming from your boiler, could indicate mechanical issues or the accumulation of debris. These should be investigated and resolved by a professional.
  • Leaks or Drips: Any signs of water leakage or dripping around the boiler should be addressed promptly. Leaks can lead to water damage and indicate potential issues with valves, seals, or pipes.
  • Irregular Heating: If you notice inconsistent heating in different areas of your home or if some radiators fail to heat up properly, it may be a sign of a circulation problem within the boiler. Servicing can help diagnose and rectify the issue.
  • Frequent Pilot Light Outages: If your boiler’s pilot light frequently goes out, it could indicate a faulty thermocouple or other underlying issues. These issues should be inspected and resolved to ensure safe and reliable operation.
  • Higher Energy Bills: A sudden or significant increase in energy bills without any apparent change in usage patterns could indicate reduced efficiency in your boiler. Regular servicing can help address this and potentially lower your energy costs.
  • Selling a house: If you are looking at selling your house you should get a boiler service to give confidence to prospective buyers that your gas boiler is working well.

If you notice any of these signs, it’s important to contact a qualified heating engineer or boiler servicing company to assess the situation and perform the necessary repairs or maintenance.

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Benefits of Regular Boiler Servicing

Regular boiler servicing offers several benefits that go beyond safety and reliability. Here are some advantages of maintaining a consistent servicing schedule:

  • Improved Efficiency: Regular servicing ensures that your boiler operates at its maximum efficiency, resulting in reduced energy consumption and lower heating costs. It allows the technician to clean and optimise key components, removing any buildup that hinders performance.
  • Reduced Energy Bills: A well-maintained boiler consumes less energy, leading to lower utility bills. By addressing minor issues and optimising performance during servicing, you can achieve significant long-term savings.
  • Enhanced Safety: Boiler servicing includes checks for potential safety hazards, such as gas leaks or carbon monoxide leaks. Identifying and addressing these risks promptly helps protect your household from potential harm.
  • Extended Lifespan: Regular maintenance significantly extends the lifespan of your boiler. By detecting and addressing problems early on, you can prevent major breakdowns and prolong the overall lifespan of the system, saving you from costly replacements.
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Why get a boiler serviced often?

The Steps Involved in a Boiler Service

  • Initial Assessment and Visual Inspection: When the respective heating engineer arrives, the heating engineer will begin by examining the external components of your boiler. They will inspect the boiler for any visible signs of damage, leaks, or corrosion. This initial assessment helps them determine the general condition of the boiler.
  • Gas Pressure and Flue Analysis: The fully qualified heating engineer will then proceed to measure the gas pressure to ensure it is at the correct level. They will also inspect the flue to ensure it is properly installed and free from obstructions, as a blocked flue can lead to carbon monoxide leaks.
  • Internal Component Inspection and Cleaning: Next, the engineer will remove the boiler casing to access the internal components. They will inspect and clean various parts, such as the burner, heat exchanger, and ignition system. This step helps optimise the boiler’s performance and efficiency.
  • Testing Safety Controls: The engineer will test the safety controls of the boiler, including the pressure relief valve, thermostat, and any other relevant mechanisms. This ensures that the boiler can shut down automatically if it detects any faults or unsafe conditions.
  • Boiler and Flue System Gas Analysis: A boiler and flue gas analysis is conducted to measure the combustion efficiency of the boiler. This test helps identify any potential issues that may affect the boiler’s performance and efficiency.
  • Sealing and Casing Inspection: The engineer will ensure that the boiler casing is properly sealed to prevent any gas leaks. They will also inspect the casing for any damage or signs of wear and tear.
  • Final Checks and Recommendations: Once all the necessary inspections and tests are completed, the engineer will provide you with a detailed report on the findings. They will highlight any issues discovered during the service and recommend appropriate actions to rectify them.
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DIY Boiler & Central Heating Checks

While professional boiler servicing is crucial, there are also some basic maintenance tasks that homeowners can perform themselves. Here are a few DIY tips to keep your boiler in good condition:

  • Bleeding Radiators: Over time, air can accumulate in radiators, causing them to become less efficient. Bleeding the radiators releases trapped air and improves their performance. You can do this by using a radiator key to open the air valve.
  • Checking Pressure Levels: Your boiler’s pressure should be maintained within the recommended range. You can check the pressure gauge on the boiler and adjust it if necessary. Consult your boiler’s manual for specific instructions.
  • Keeping the Boiler Area Clear: Ensure that the area around your boiler is free from clutter and obstacles. Proper ventilation is essential for the safe operation of the boiler.

While these maintenance tasks can contribute to the overall well-being of your boiler, it’s important to remember that they should not replace professional servicing. DIY maintenance should be seen as complementary to regular professional inspections and not as a substitute.

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Choose a Professional Boiler Servicing Company

When it comes to entrusting your boiler’s maintenance to a professional, it’s crucial to choose a reputable and qualified boiler servicing company.

At our service, we understand the importance of finding a reliable service provider that meets your needs and budget. We compare boiler quotes from a range of UK businesses to find you the best deal. Here are some factors to consider when selecting a service provider:

  • Certifications and Accreditations: Look for companies that hold relevant certifications, such as Gas Safe registration (in the UK). These certifications ensure that the technicians are qualified and competent in handling boiler servicing.
  • Experience and Expertise: Consider the company’s experience in the industry. A well-established company with years of experience is more likely to provide reliable and quality service. Look for testimonials or case studies that highlight their expertise in boiler servicing.
  • Customer Reviews and Recommendations: Take the time to read customer reviews and testimonials to gauge the company’s reputation and customer satisfaction. Positive reviews and recommendations from previous clients are indicators of a reliable service provider. It’s also worth asking for recommendations from friends or family who have recently had their boilers serviced.
  • Range of Services: Ensure that the company offers comprehensive boiler servicing, including inspections, cleaning, repairs, and maintenance. A one-stop-shop can provide convenience and a holistic approach to your boiler’s needs. Additionally, check if they offer any additional benefits or guarantees with their services.

By considering these factors and using our service to compare quotes, you can find a reputable boiler servicing company that meets your requirements. Investing time in research and choosing the right service provider ensures that your boiler receives the professional care it deserves while also getting the best value for your money.

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The Average Boiler Service Cost

The cost of a boiler service can vary depending on factors like:

  • The type of boiler
  • Fuel used
  • The service company’s rate
  • Accessibility
  • Boiler brand /model
  • And your location

On average, a boiler service can cost between £100 to £150, but prices may vary.

While some homeowners may hesitate to invest in regular servicing due to the associated costs, it’s important to consider the potential long-term savings.

Proper maintenance can prevent major breakdowns and costly repairs in the future, ultimately saving you money.

Looking for a new boiler? Read more about boiler prices in the UK in our guide.

Servicing Boiler to increase home value

If you are a homeowner looking to sell your property, take into consideration that a well serviced and taken care of boiler is much more appealing to potential buyers, other home improvements can add value, but regular servicing may be the easiest to achieve.


Regular boiler servicing is vital for maintaining a safe, efficient, and reliable heating system in your home. By following the manufacturer’s recommendations and considering factors such as the age of the boiler and usage patterns, you can determine the appropriate frequency for servicing. Remember to pay attention to any signs indicating immediate servicing needs and contact a professional if you have concerns.

Investing in regular servicing not only enhances safety and efficiency but also extends the lifespan of your boiler. The benefits include improved energy efficiency, reduced energy bills, enhanced safety, and long-term cost savings. By prioritising boiler servicing, you can enjoy a warm and comfortable home while ensuring the optimal performance and longevity of your boiler.

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Frequently Asked Questions (FAQs)

Is it necessary to service a new boiler?

Yes, It is essential to service a new boiler regularly, as it helps keep your boiler warranty valid and ensures its optimal performance. Even though a boiler is new, it still requires servicing to uphold legal requirements.

Having your boiler serviced is crucial as it helps identify issues early, ensures efficient and safe operation, and prevents unexpected repairs. By following the manufacturer’s recommended servicing intervals, you can extend your boiler’s lifespan, avoid unexpected costs, and maximise warranty coverage.

Can I service my boiler myself?

DIY boiler maintenance tips can be performed by homeowners, but when it comes to a boiler service you must let the professionals service your boiler, especially those who are Gas-Safe registered engineers (qualified engineers who work for the Gas Safe register) as it is a legal requirement as only qualified heating engineers can perform boiler services.

What are the potential dangers of neglecting boiler servicing?

Neglecting your boiler service can lead to carbon monoxide poisoning, reduced efficiency, increased energy bills, and potential breakdowns.

Is a boiler service technically a gas safety check?

A boiler service is not the same as a gas safety check. A boiler service focuses on the boiler’s functionality, and maintenance. It includes inspecting components, cleaning, adjusting, and identifying potential issues to ensure efficient operation.

In contrast, a gas safety check is a broader assessment of all gas appliances and fittings in a property. It ensures compliance with safety standards, examines appliances like boilers, your central heating system, gas cookers, and fires, and identifies gas leaks, carbon monoxide risks, and other hazards that could endanger residents.

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Get Your Boiler Serviced By a Gas-Safe Registered Engineer

It is highly recommended to schedule an annual boiler service conducted by a Gas-Safe registered engineer for both gas and oil boilers.

This ensures the safety and optimal performance of your gas boiler and other gas appliances so that everything is running safely.

By hiring fully qualified heating engineers, you can expect a thorough boiler service that includes inspection, cleaning, and maintenance of various boiler components.

Following the service, the engineer can provide a gas safety certificate to verify that your boiler meets the required safety standards. Remember, an annual boiler service is crucial for the efficient and safe operation of gas boilers and other gas appliances.

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