Skip to main content

Last updated on December 13th, 2023 at 12:14 pm

A broken boiler can quickly turn from an inconvenience to a big problem, especially during the colder months.

Your boiler is an essential part of your home’s heating and hot water system, and when it stops working, it can disrupt your home appliances and even pose safety risks.

In this article, we’ll explore the potential consequences of a non-functioning boiler and discuss the steps you can take to address the issue promptly. If you do have a broken boiler on your hands, read our guide on how to find a boiler engineer near you with Warmable. 

1. Loss of Heating and Hot Water

The most immediate impact of a malfunctioning boiler is the loss of heating and hot water in your home.

As the central hub of your heating system, the boiler is responsible for producing the heat that warms your living spaces and provides hot water for daily activities.

A breakdown in the boiler can leave you grappling with cold temperatures, making your home uncomfortable – especially in the colder months.


2. Increased Energy Bills

A malfunctioning boiler can lead to increased energy bills. When your boiler is not operating efficiently, it may struggle to heat your home well, leading to higher energy consumption as it works harder to maintain the desired temperature.

This increased energy usage means higher utility bills. Addressing boiler issues quickly can help you avoid wasting money in the long run.

3. Potential Safety Hazards

A faulty boiler can present safety hazards to your home.

One of the most concerning risks is the potential for a gas leak. If your boiler is powered by gas and is not functioning correctly, it could lead to the release of carbon monoxide—a colourless and odorless gas that is highly toxic.

Carbon monoxide poisoning can be life-threatening and often goes unnoticed until symptoms, such as dizziness, nausea, and headaches, become severe. Regular boiler maintenance and immediate repairs can reduce the risk of this situation occurring.

4. Impact on Property Value

A non-functioning boiler can also negatively impact your property’s value. When selling your home, potential buyers may see a malfunctioning boiler as a drawback, raising concerns about the overall condition of the property.

Even if you’re not planning to sell, a well-maintained and functioning boiler adds value and appeal to your home, contributing to its long-term investment potential.

If you’re unsure if your boiler needs replacing, read our guide on signs you know it’s time to upgrade your boiler.

5. Frost Damage

During the cold winter months, a malfunctioning boiler can lead to frost damage.

When the heating system fails, pipes can freeze and potentially burst, causing water damage to your home. This can lead to expensive repairs and the inconvenience of dealing with a flooded home.

Proper boiler maintenance and regular repairs can prevent this and safeguard your home against the damaging effects of frozen pipes.

6. Reduced Comfort and Well-being

A functioning boiler contributes to your overall comfort and well-being at home. Being able to enjoy a warm and cozy living environment allows you to relax, reduces stress, and supports better sleep.

When your boiler stops working, it can disrupt your overall sense of well-being. Quick repairs or replacements can restore your home’s comfort and ensure you continue to enjoy a nice home environment.


A malfunctioning boiler can have many consequences, not just a loss of heating and hot water. From increased energy bills to safety hazards and potential property damage, a broken boiler shouldn’t be taken lightly.

However, regular maintenance, timely repairs, and professional servicing are key to ensuring your boiler operates efficiently and safely. By addressing boiler issues quickly, you can avoid these potential consequences and live in a comfortable and secure home environment.

If you need to replace or fix your boiler, Warmable can help you find the most cost-efficient and reliable solution today. Fill in the online form now to get started!

Was this helpful?

Thanks for your feedback!
Andrew Speer

Andrew Speer is the co-founder of Warmable drawing on more than 15 years of experience working in property and home repairs industry in the UK