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How Do I Know If My Boiler Needs Repairing

  • Posted by:
  • Admin
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  • Boiler Repairs, Broken Boilers, Diagnosing Broken Boilers
  • Posted date:
  • 05-05-2022
How Do I Know If My Boiler Needs Repairing

How do I know if my boiler needs repairing? This article looks at the signs that  your boiler needs repair. Find out if your heating system requires a professional to carry out repairs. 

We look at the common signs of a broken boiler so you can get it repaired as soon as possible.

Do You Have A Broken Boiler?

A boiler is an essential appliance inside any home; it is the hardest working unit that you will own in your property or home. 

It serves many purposes and allows you to complete numerous daily tasks, for example, heating the home and providing hot water for drinking and cooking. The generic household boiler is 60% responsible for the overall energy bills.

Broken boilers can cause chaos in your everyday routine when they don't properly function in your home or establishment. 

Without sufficient hot water and heating, you will often be left vulnerable, especially in the colder seasons like autumn and winter when the temperature drops, or unfortunately, throughout the majority of the year according to typical UK weather!

Costs for fixing broken boilers tend to be a pain to figure out and save money for, and often there is no guarantee of how long the new repairs from top professional engineers will last. A regular gas boiler service with a sufficient certificate is what you should aim for every 6-12 months.

Unpredictable boiler breakages can be highly stressful and expensive; however, you shouldn't hesitate when you are in dire need of boiler replacements. One repair at a time will always be far cheaper than the costs of a brand-new boiler installation.

What Are The Signs Your Boiler Needs Repair?

Strange Noises

It's normal for your boiler to stay relatively quiet if you discover that it begins to make a great deal of noise out of the blue or after performing a daily task like flushing the toilet; it is a warning sign that something is wrong. Banging, whirring, and clunking sounds may indicate that a fan or pump is worn down and needs replacement.

If you hear frequent gurgling or whistling sounds, it may signify that the boiler's pressure is significantly low, or if you hear these noises after flushing the toilet or running the tap, it can mean that you have a dirty valve inside your boiler. 

There could also be kettling cases, which occur when debris build-up and salts get stuck inside your heat exchanger, causing the water to boil and steam..

Noises can signify different boiler issues, so it's best to call up an experienced professional team today to uncover the exact issue and fix it with the best possible solutions.

Foul Smells

Foul smells coming from your boiler are so essential to look out for throughout its activity in your household or property. Carbon monoxide leaks could eventually affect the functionality of your boiler, alongside significant health problems for yourself, your employees, your housemates and your family.

If your boiler begins leaking carbon monoxide gases into your atmosphere, you may detect a strong smell. A boiler that fails to burn efficiently will leak this harmful poison.

Another sure-fire way to decipher whether your boiler is leaking carbon dioxide into your home is to see whether the flame inside is yellow. Typically, the flame inside a standard, working boiler is a blue flame to display its burning at the optimal temperature or full capacity when turned on. 

Search for any dark spots, especially those around your boiler's casing; this is a sign you need to call a local repair company immediately. If this situation occurs, evacuate all individuals inside the building as the health effects of carbon monoxide are lethal, involving nausea, headaches, breathing problems, and even death.

 How do I know if my boiler needs repairing?

Increased Heating Bills

Those who have seen a dramatic increase in their heating bills aren't a fluke or billing mistake. You could discover a leak or potential other issues with your boiler, requiring your boiler repaired immediately. If your boiler is far older than 15 years and heating bills are beginning to increase drastically, it could be a sign that you need a brand new model that is far more energy-efficient.

A modern boiler will help you save money on various deals, warranties and overall heating boiler costs.

Cold Building

Suppose you currently work on the premises of a warehouse, church or school; you will often rely on heating systems to ensure your visitors, students, and employees are comfortable. If you find that your building remains cold even long after you've switched your central heating system on, it could mean there is something wrong with your boiler system. 

The cause of such problems can occasionally vary, so please ensure you have an experienced professional in the field check it out for you. The issue could reside in your radiators on some occasions, so it's best to check.


Many people can mistake boiler leaks for something that happens frequently, a routine practice that you can blissfully ignore. However, this is not the case, as leaks in your boiler can lead to far more detrimental problems down the line. 

Leaks can spread to your floor or walls, resulting in expensive water damage and can breed mould in your building. Ensure you check your boiler routinely; call out a repair technician if you spot any signs.

Lack of Hot Water

For those who struggle to get their water to remain hot or become hot in the first place, the root of the issue could lie in the boiler. There could potentially be problems with your boiler's thermostat, diaphragm, valve or airlock.

Begin by calling a boiler technician hat can determine the faulty aspects that have malfunctioned and those broken parts that need replacing.

Another common related issue you may run into is if your water starts to come out of the tap much hotter or colder than it should. If this is the issue you have, you may be facing significant issues with the circulation of your boiler.

What Are The Signs Your Boiler Needs Repair?

Lack of Past Maintenance

Think back to the last time you had your boiler serviced; if it was longer than 6-12 months ago, or it was so long ago that perhaps you've forgotten, you are likely in dire need of regular servicing and professional maintenance.

It's best to get it serviced as soon as you realise that you haven't had one in an alarmingly long time because the last thing you want to happen is to wake up one night in the autumn or winter and discover that your boiler does not function properly.

Don't put off professional attention or help for too long, especially in the spring and summer months when you can book an appointment to ensure you have a comfortable, warm winter.

Clogged Filters

Your boiler's filter can often become clogged, so ensure you keep updated with your cleaning and replacing all filters. Aim to replace them at least every once a month as a preventative step to stop clogging from occurring.

For those that notice your filter growing dirtier than expected, at this stage, you should begin to contact your local professionals to inspect the system, ensuring all aspects are working efficiently.

By noticing these inefficient boiler issues far earlier, you can successfully prevent costly breakdowns for obvious reasons.

Poor Energy Efficiency

If you have discovered that your boiler is leaking, you must call the professionals in your local area to visit your household and fix the issue. Leaks are a huge indication that your boiler no longer functions efficiently; however, they could signify more significant problems down the line. 

Suppose your boiler begins leaking, yet it goes completely unnoticed; it can result in severe issues, such as serious property damage, becoming a breeding ground for mould due to the dampness and many more.

Do You Have A Broken Boiler?

Slow to Heat Up

Many homeowners find themselves hesitant to call on professional plumbers for help with boiler repair, primarily when they have finally found a way to heat their home.

However, you should still contact your local plumbing and heating services even if this is the case because a slow-to-start system is a significant sign of a problem.

You never want to settle for boilers that are too slow, as they are obstructive and indicate your boiler is on the way out. Be sure to contact your local plumbers to get to your location.

Operating Issues

Consider this; have you been experiencing problems with your home turning ice cold in certain areas and extremely hot in others? It may be a sign that your boiler isn't operating correctly and efficiently.

What you may ignore and attribute to control or handling issues could potentially be your boiler acting up or breaking down. You can utilise this opportunity to get your boiler adequately replaced or repaired.

Age of Your Boiler

It's essential to know the age of your boiler, as they can expire over several years of being active. For those with units that have successfully provided you excellent services over many years, you may require a replacement to invest in for the future.

You'll want to begin investing in brand new units that will allow you to save money in the long run. Modern units are far more efficient with energy consumption than older ones that have existed and run for many years.

Gas Leakage

For those that ever smell gas inside their home, you must strive to turn your boiler off immediately. It's paramount that you avoid switches and lighters to avoid any sparks; in the meantime, don't plug anything in and aim to have professionals come out to the scene as soon as physically possible.

Gas leakage can be hazardous, leading to carbon monoxide poisoning if neglected.

Are you looking for boiler repair in Retford or the surrounding area of Nottinghamshire? If you find yourself struggling with any of the above problems or more, don't hesitate to contact our professional team. 

We offer a free quotation to you before conducting work, and our website has a full list of our plumbing services.