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do i need a new boiler? 5 telltale signs
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Do I Need a New Boiler? 5 Telltale Signs

When your boiler is working normally, you probably don’t even notice it. But if it starts playing up, it may be a sign that it needs replacing.

If your boiler is on the newer side, it might only need a replacement part or a service to fix a minor fault. But if you notice any of the signs below, it’s probably a more serious issue, and you may need a full replacement.

Here’s how to tell if you may need a new boiler.

Do I need a new boiler? 5 signs to look out for

1. Regular breakdowns

You can prolong your boiler’s lifespan by booking it in for a regular service.

With that said, if you’re having to frequently call out an engineer in order to take care of breakdowns, it’s probably time to consider replacing your boiler.

New boilers are expensive, but the bills will also pile up if your current boiler is regularly breaking down.

If you’re calling out an engineer more than once a year – aside from your annual service – you may want to look at replacing your boiler.

2. Unusual smells

If your boiler is giving off a sulphurous (eggy) smell, this could be indication of a gas leak.

A gas leak is highly dangerous – if you notice this smell from your boiler, turn it off immediately and call the National Gas Emergency Number on 0800 111 999.

You’ll also most likely need to replace your boiler, too.

3. Unusual noises

Boilers typically make some noises without causing any issues. But if you notice the sounds coming from your boiler are different from usual, it’s worth paying a bit more attention.

Concerning noises include a banging, gurgling or clunking sound accompanied by vibrations in the machine. If the noise is excessively loud or persistent, it may be time to replace your boiler.

4. Poor overall performance

If you notice that your boiler regularly drops in pressure, there may be a leak in the system. There may also be an issue with either its expansion vessels or a pressure relief valve. Get out an engineer to establish what the issue is.

Similarly, if your radiators are taking longer than usual to warm up, your boiler may be wearing out. Your radiators may only need bleeding to deal with the issue, but if it’s more complicated, your boiler might need replacing.

If your boiler keeps shutting off without good reason, this can also be a sign of a deeper issue.

5. Higher energy bills

An inefficient boiler means higher energy bills.

If you’ve noticed your household energy bills slowly rise without any change to your energy usage, your boiler may be inefficient and need replacing.

You can determine your boiler’s efficiency by checking its ERP energy rating. The most efficient modern A-rated boilers operate at 90% efficiency, whereas older G-rated models run at 70% efficiency or less.

Contact Surrey Heating Specialists for a new boiler

Unsure whether you need a new boiler? Surrey Heating Specialists can help. We’ll inspect your boiler and recommend the best course of action for you and your home, whether that’s a replacement part, quick fix or full replacement. Contact us today to find out more.

 

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Great plumber came on time no mess good job
Response from the owner:Thank you so much for your kind words, Leona! We’re thrilled to hear that our plumber provided you with timely and tidy service. Your satisfaction means the world to us as a trusted, local business. If you need anything else, just let us know! Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
Superb service from first contact to job completion. Communicative, timely, expert engineer and zero flannel. Really good experience
Response from the owner:Thank you so much for your kind words, Graham! We're thrilled to hear that you had a superb experience with our service. Communication and expertise are top priorities for us, and it's great to know we met your expectations. We appreciate your support for our local community-based business! Best regards, Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
Excellent and efficient service and very caring staff.
Response from the owner:Thank you Anita, great to see you happy with our service, will pass it to the team.
A great experience to getting my boiler fixed and serviced by Surrey Heating Specialists - only downside is that the struggle in not being able to tell me the full price when asking to book an engineer and getting my name wrong as well as my address which was a bit of a struggle to getting right.
Response from the owner:Hi Umer, Thank you for your feedback — I really appreciate it. Just to clarify, it’s very difficult for us to give an exact repair cost before attending, as we simply don’t know the fault until we’ve carried out the diagnostic. That’s why we have the £50 + VAT diagnosis fee, and why we explained the minimum charge for the first two hours if the repair can be completed there and then. We did send the call-out terms via email and text so everything was clear up front, but apologies again for the small mix-up with your name. I’m really glad to hear you were happy with the service overall, and thank you for choosing Surrey Heating Specialists. Ryan Price Owner Surrey Heating Specialists
Excellent service and went above and beyond by helping to get my hive app working again. This was my second boiler service and will call on surrey heating again without hesitation.
Response from the owner:Thank you Arnie , your review means a lot for us and we always make sure the service is being done properly as it is really important.
"I am so glad I chose Surrey Heating Specialist for my new boiler. After my old one broke down, I researched over ten different companies. From the very beginning, Ryan stood out by answering every single one of my questions and going out of his way to help. His patience and clear communication made a huge difference in my decision.
The installation itself was handled by Anthony and Dan, and they were brilliant. They were not only amazing at their work but also incredibly knowledgeable and helpful. They didn't rush off after finishing; instead, they made sure I understood exactly how my new boiler works. This is how every company should operate. The entire process was smooth, professional, and friendly. I am confident that if any issues arise in the future, they will be happy to assist
Response from the owner:Hi Gary, Thank you so much for your wonderful review! I’m thrilled to hear that you had such a positive experience with our team at Surrey Heating Specialists. It’s great to know that both Anthony and Dan provided the support you needed during your new boiler installation. We pride ourselves on being a trusted, community-based business, and your feedback reaffirms our commitment to excellent customer service. If you ever need assistance in the future, we're just a call away! Warm regards, Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
Terry was friendly and very professional at the same time. Very efficient service. Highly recommend this company. 14/11/25
Response from the owner:Thank you Sarah.
Excellent Response
Professional Service from Ryan and Paul
Paul came to fix my boiler problem.
Highly recommended
They listen to your concerns,
Great Customer service

All contact numbers saved for the future
Will be my first contact !

Thank you Ryan and your team
Response from the owner:Thank you so much, Steve! I truly appreciate your kind words and am thrilled to hear that Paul was able to assist you with your boiler issue. Our team is dedicated to providing great customer service, and it means a lot to us to be your first contact in the future. We're proud to be your trusted, local heating specialists! Best regards, Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
Paul was running a few minutes late but was kept up to date via a phone call. Service on the boiler was spot on and even found and fixed a small leak that id long forgotten about. The company is a pleasure to deal with from start to finish
Response from the owner:Thank you so much for your kind words, Jason! We're thrilled to hear that Paul provided you with excellent service and kept you informed along the way. It's great to know we could address that leak for you too. We truly appreciate your support as a trusted, local, community-based business. If you need anything else, just let us know! Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
SHS was able to get me an engineer within a few hours of calling them which was great. The engineer, Terry, was polite, pleasant and professional. He got straight on with diagnosing the issue with my hot water and identifying the problem. Sadly he was unable to fix the problem this time (hence the four star rating) but at least we moved forward. I would not hesitate to contact SHS again in the future if I have any more problems with my heating system.
Response from the owner:Thank you for your feedback, David! We're glad to hear that Terry was able to assist you promptly and professionally, even if he couldn't resolve the issue as it was an electrical supply fault. We appreciate your understanding and are here for you whenever you need help with your heating system. Your trust in our local, community-based business means a lot to us. Best regards, Ryan Price
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