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Home Heating SOS: Quick Fixes for Common Boiler Problems

During the cold season, there is nothing worse than your boiler deciding to throw a tantrum. From strange noises to sudden breakdowns, common boiler problems can disrupt your home heating and leave you in the cold.

But fear not! With a bit of know-how and some quick fixes, you can tackle these issues head-on and keep your home cosy all winter.

Understanding Common Boiler Problems

Boilers are complex systems with various components that can malfunction over time. Understanding these common issues can help you diagnose and resolve problems efficiently.

1. No Heat or Hot Water

Perhaps the most obvious and frustrating problem, especially on a chilly morning when you are looking forward to a hot shower. This could be due to issues with the boiler pressure, thermostat, and airlock or valve failure. Also, look out for any error codes on your boiler display that could indicate a specific fault with your boiler.

2. Low Boiler Pressure

Boiler pressure dropping below the recommended levels can lead to inefficiency and a lack of heating or hot water. This could be caused by a water leak, bleeding radiators, or a faulty pressure relief valve. Give South London Heating a call on 0203620 5800, and we can advise how to correctly top up your boiler pressure.

3. Strange Noises

From banging and gurgling to whistling and humming, strange noises coming from your boiler are a clear sign that something is not right. These noises could indicate issues with the air in the system or kettling due to limescale buildup.

4. Leaking or Dripping

Any leaks or drips around your boiler should be addressed immediately to prevent water damage and further issues. Leaks can be caused by pressure problems, corroded pipes, or faulty seals.

Quick Fixes for Boiler Woes

Now that we have identified some common boiler problems, let’s dive into quick fixes you can implement to get your heating system back on track.

1. Check the Thermostat

Ensure that your thermostat is set to the desired temperature and is functioning correctly. Sometimes, the solution can be as simple as replacing the batteries or recalibrating the thermostat.

2. Bleed Your Radiators

If your radiators are cold at the top but warm at the bottom, they may need bleeding to release trapped air. Use a radiator key to open the valve slightly until water starts to escape, then close it once the air stops.

3. Reset the Boiler

Many modern boilers have a reset button that can be pressed to restart the system. Refer to your boiler’s manual to locate the reset button and follow the manufacturer’s instructions.

4. Boiler Pressure

If your boiler’s pressure is too low, you can usually repressurise it yourself using the filling loop. Consult your boiler manual for guidance on how to safely increase the pressure to the recommended level. Alternatively, give South London Heating a call, and we can advise how to correctly top up your boiler pressure.

5. Inspect for Leaks

Regularly check around your boiler and radiators for any signs of leaks or drips. If you find a leak, tighten any loose fittings or seals, or contact South London Heating if the issue persists.

6. Call South London Heating

If you are unsure about how to fix a boiler problem or if the issue persists after attempting these quick fixes, do not hesitate to give South London Heating a call. We are qualified heating engineers and have the expertise and tools to diagnose and repair more complex issues safely.

Considerations for Boiler Replacement and Service

While quick fixes can resolve many common boiler problems, there may come a time when boiler replacement is the most cost-effective solution. Here are some factors to consider:

1. Age of the Boiler

If your boiler is more than 10-12 years old, it may be less efficient and prone to frequent breakdowns. Investing in a new, energy-efficient boiler can save you money on utility bills in the long run.

2. Frequency of Repairs

If you find yourself calling a heating engineer frequently to fix boiler problems, it may be more economical to replace the boiler rather than continuously paying for repairs.

3. Boiler Service

Regular boiler servicing is essential for maintaining optimal performance and identifying potential issues before they escalate. Consider scheduling an annual boiler service to keep your boiler running smoothly.

4. Boiler Finance Options

If the cost of a new boiler is a concern, explore our low-cost monthly payment plans. We offer flexible payment plans to spread the cost of a new boiler over time.

Boiler Tips for Year-Round Efficiency

To keep your boiler running efficiently and minimise the risk of breakdowns, here are some additional boiler tips:

1. Schedule Annual Servicing

Do not wait for problems to arise before servicing your boiler. Annual maintenance can prolong its lifespan and ensure it operates safely and efficiently. Book your boiler servicing online.

2. Monitor Boiler Pressure

Check your boiler’s pressure gauge regularly and repressurise as needed to maintain optimal performance.

3. Install a Carbon Monoxide Detector

Carbon monoxide is a silent killer produced by faulty boilers. Install a carbon monoxide detector near your boiler and in sleeping areas to alert you to any leaks.

4. Insulate Pipes and Radiators

Insulating your boiler pipes and radiators can help retain heat and improve efficiency, especially in colder months. Give us a call to arrange a free quotation for this.


By staying vigilant and addressing common boiler problems promptly, you can keep your home warm and comfortable throughout the winter months. While these quick fixes can help you weather minor boiler hiccups, sometimes the best solution is professional intervention. That is where South London Heating comes in.

Our team of Gas Safe-registered engineers boasts over 15 years of experience diagnosing and repairing all boiler makes and models. We are committed to providing fast, reliable, and affordable boiler services to keep your home warm and your family safe all winter.

Do not let boiler troubles disrupt your winter comfort! Contact us today for a consultation.