Boiler Servicing

Looking after your boiler with regular servicing is an investment guaranteed to pay off. It’s easy to take a boiler for granted until it doesn’t work or starts to make unnerving noises. Problems with your boiler can be costly or even dangerous so it’s always important to schedule regular services with a GasSafe boiler company you can trust.


We provide trusted boiler servicing to homes and businesses across Luton, Bedfordshire, Buckinghamshire, Hertfordshire and Northants. Our GasSafe engineers will work swiftly and efficiently to provide a thorough check of your boiler. If there are any issues you can rest assured, we’ll identify them and if you wish, solve them quickly then or at a later date of your choosing.


A boiler kept in good condition will last for a long time and run at maximum efficiency which is beneficial for both your energy bills and the environment.

Boiler Installation Services, Luton


Our experienced engineers take pride in delivering a superb service to every customer, in fact, we’ve gained a reputation for our high standard of customer care. You’ll find our staff arrive on time, smartly dressed in company uniform with their badge visible to ensure you feel secure.


Education and training are a top priority at Sun Realm, so can be sure the engineer who arrives will have a complete knowledge of a vast range of boilers from different brands and models plus a rich experience of working across the heating industry.

Get a free quote

Trusted Gas & Heating Engineers

Our boiler services include a range of options for boiler cover, boiler finance, installation, replacement and boiler servicing.

01582 571925 Request a Quote

Latest News

06 Sep, 2024
As winter sets in and temperatures drop, energy bills tend to rise. However, there are many ways to keep your home warm without seeing a significant spike in your heating costs. By focusing on energy-efficient heating strategies, you can reduce your energy consumption and save money while staying comfortable. Whether it’s upgrading your boiler, adjusting your heating habits, or improving insulation, a few simple changes can make a substantial difference. One of the most effective ways to cut heating costs is by ensuring your boiler is running as efficiently as possible. If your boiler is more than 10-15 years old, it might be worth considering an upgrade to a modern, energy-efficient model. Newer boilers, especially condensing ones, are designed to capture more heat and recycle it back into the system rather than letting it escape through the flue. This can result in significant energy savings, with some estimates suggesting up to 30% lower heating bills compared to older models. Regular servicing is also crucial, as a well-maintained boiler operates more efficiently and is less likely to break down. Beyond upgrading the boiler itself, using a smart thermostat is another way to save money. These devices allow you to programme your heating system according to your daily routine, ensuring you only heat your home when necessary. For instance, you can set the heating to turn off while you're at work and warm the house just before you return. Some smart thermostats even allow for remote control via a mobile app, giving you flexibility in managing your heating. According to the Energy Saving Trust, installing and properly using a programmable thermostat can reduce your annual heating costs by around 10%. Another key factor in energy-efficient heating is insulation. Heat loss through walls, roofs, and floors can cause your heating system to work harder, leading to higher bills. Properly insulating your home can prevent this and significantly reduce energy consumption. Cavity wall insulation, for instance, can cut your heating costs by up to 35%, while loft insulation can save an additional 25%. These improvements are not only cost-effective in the long run but can also increase the comfort of your home by reducing draughts and keeping the heat in for longer. Lowering the thermostat by just a degree or two can also make a noticeable difference in your heating bills without sacrificing much comfort. According to various studies, reducing your thermostat setting by 1°C can cut your heating costs by about 10%. It’s a small change that can lead to big savings over the course of a winter. Similarly, making use of the timer function on your heating system can help reduce costs. Rather than leaving the heating on all day, set it to come on just before you wake up and to turn off shortly before you leave the house or go to bed. In addition to insulation and boiler upgrades, smaller changes around the house can also contribute to energy efficiency. Simple measures like using radiator reflectors behind your radiators can help direct heat back into the room rather than allowing it to escape through walls. Similarly, keeping curtains closed at night can help trap heat, while opening them during the day allows sunlight to naturally warm your home. It’s also important to make sure your radiators aren’t obstructed by furniture, as this can block the flow of heat and make your system less efficient. Finally, adopting energy-efficient behaviours can have a long-lasting impact on your bills. Wearing warm clothing indoors and using blankets can allow you to lower the thermostat without feeling cold. Additionally, heating only the rooms you use regularly and turning off radiators in unused spaces can make a big difference. Sealing draughts around doors and windows is another simple, cost-effective way to improve your home’s energy efficiency. In conclusion, by taking steps to improve the efficiency of your heating system, insulate your home, and adopt smarter heating habits, you can enjoy a warm and comfortable winter without the shock of high energy bills. From upgrading your boiler and using a smart thermostat to improving insulation and sealing draughts, these measures will not only save you money but also reduce your carbon footprint, making them a win-win for both your wallet and the environment.
06 Sep, 2024
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06 Sep, 2024
As winter approaches, it becomes crucial to ensure that your boiler is in perfect working order. A sudden breakdown during the colder months can lead to costly repairs and discomfort. Regular servicing can prevent unexpected issues, but there are specific signs that indicate your boiler may need attention sooner rather than later. Here are the top five signs your boiler requires servicing before winter: First, if your boiler starts making unusual noises, it's a clear indication that something isn't right. Boilers are typically quiet when functioning correctly, but if you begin to hear banging, whistling, or gurgling, these could point to internal issues such as trapped air, low water pressure, or even a failing pump. These sounds, especially if persistent, are a signal that the boiler is struggling to operate efficiently and could lead to more significant problems if left unchecked. A GasSafe engineer can diagnose and fix the issue before it escalates. Another sign is fluctuating or inconsistent heating. If your radiators aren't warming up evenly or your home takes longer than usual to heat, your boiler may be struggling to circulate hot water effectively. This could be due to issues like sludge build-up in the system, a faulty thermostat, or an airlock. Addressing these issues early will not only ensure your home stays warm but also help avoid higher energy bills due to inefficient heating. Additionally, if your energy bills have suddenly increased without an obvious cause, it could be a sign that your boiler is not running as efficiently as it should. An inefficient boiler will use more energy to produce the same amount of heat, leading to higher costs. Regular servicing can help identify the cause of the inefficiency, whether it’s due to wear and tear, a dirty system, or faulty components, and restore the boiler’s optimal performance. Catching this early can save you money in the long run. Water leaks around the boiler are another critical warning sign. Even a small amount of leaking water can indicate a serious issue with the system, such as corrosion, pressure problems, or a faulty valve. Not only can leaks cause damage to your home, but they can also lead to a full boiler breakdown if ignored. A technician can trace the source of the leak and fix the underlying problem, preventing further damage and ensuring the boiler remains safe to use. Lastly, if you notice an irregular or yellow flame in your boiler, this could signal a dangerous issue. Normally, the flame should be blue. A yellow or flickering flame may indicate that the boiler is not burning fuel properly, which can result in the production of carbon monoxide – a dangerous, odourless gas. This is a serious health hazard, and immediate action is needed if you see this sign. Alongside this, if your carbon monoxide alarm goes off, you should switch off the boiler and contact a GasSafe engineer immediately. Regular servicing ensures that the boiler’s combustion process remains safe and efficient, reducing the risk of harmful emissions. In conclusion, paying attention to these signs can help you catch problems early and avoid the discomfort and inconvenience of a boiler breakdown during the coldest months of the year. A boiler that is making strange noises, struggling to heat your home, increasing your energy bills, leaking water, or displaying an irregular flame needs professional attention. By servicing your boiler before winter, you can ensure your system is safe, efficient, and ready to keep your home warm throughout the colder months.

Boiler Installation Services, Luton


Our experienced engineers take pride in delivering a superb service to every customer, in fact, we’ve gained a reputation for our high standard of customer care. You’ll find our staff arrive on time, smartly dressed in company uniform with their badge visible to ensure you feel secure.


Education and training are a top priority at Sun Realm, so can be sure the engineer who arrives will have a complete knowledge of a vast range of boilers from different brands and models plus a rich experience of working across the heating industry.

Professional Boiler Service, Luton

At Sun Realm, working to the highest standards is our passion and it’s always our goal to exceed your expectations. Our engineers are professional, friendly and highly competent with a wide range of qualifications and accreditation.



Our reputation for exceptional service has seen us grow to become one of the region’s leading boiler companies, working across Luton, Bedfordshire, Buckinghamshire, Hertfordshire and Northants. Whether you need a boiler service, installation, emergency call out or repairs, you can trust us to deliver.

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