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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 servive and quick respond
Response from the owner:Thanks, Tomas! We're glad you found our service helpful and that we could respond quickly. We appreciate your support. Being a trusted, local, community-based team means a lot to us. Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
Super fast communication, diagnosis and repair. I will be using them in future!
Response from the owner:Thanks Rutton! I'm glad our team delivered super fast communication, diagnosis and repair. We look forward to helping you again. Thanks for trusting your local, community-based heating specialists. Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
It was a routine heating service the other day. The engineer was very professional and did a thorough job checking everything over. It’s great to have the peace of mind that everything is running safely and efficiently. Great communication and arrived right on time!
Response from the owner:Thank you, Manju. I’m glad our engineer provided a professional, thorough heating service and left you with peace of mind about safety and efficiency. We pride ourselves on clear communication and punctuality as a trusted, local, community-based company. Thanks for choosing us. Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
Surrey Heating Specialists replaced my old central heating boiler with a new combi boiler and removed all the old water tanks in the house. The men were very polite and the work was completed in a very professional manner and everywhere left neat and tidy afterwards. Recommend this company
Response from the owner:Thank you for the great review, we are always there to help.
Another excellent service from Surrey Heating Specalists. Signed up for the 3 star boiler cover and needed them for a leaking radiator valve. Paul came out the following day and fixed the issue with little fuss. I have been with this company for a couple of years now after having had a new boiler fitted by them and rate them 5/5. Recommend them to quite a few other people who have been more than happy with their service. Great job - thanks.
Response from the owner:Thanks Richard — really appreciate the kind words. I’m glad Paul could fix the leaking radiator valve quickly under your 3-star cover. It means a lot that you chose us for your new boiler and that you’ve been recommending our services. We’re proud to be a trusted, local, community-based business. Thanks again. Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
Polite, friendly and helpful in explaining what could (but hadn't) go wrong...good to know.
Will use again and did this year 2026
Response from the owner:We really appreciate you took the time to write a review, thank you!
Ryan and his team are fantastic, very professional, knowledgeable and friendly. They installed entire new heating system in my house, Ryan from the quoting side suggested the best solution ( I was thinking about heating pumps) and he promptly explained why wouldn't be the most efficient solution. From the rest of the team, same approach, before starting the job suggested the best way to run the pipes, where to locate the radiators, etc. The job couldn't be completed straight away because of my gas connections and Ryan didn't have a problem sending one of the guys after almost 2months to finalise the job. Highly recommended.
Response from the owner:Thanks Leonel, and thank you for the brilliant feedback. I’m glad our team could recommend the right heating solution, plan the pipework and radiator locations, and return to finish the install after the gas connection delay. We appreciate you trusting our local, community-based team and for recommending us. Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
Response from the owner:Thank you, Anne! We appreciate the 5-star rating and your support. It’s a pleasure serving our local community—please reach out if you need anything. Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
Great service
Response from the owner:Thank you, Calum! I’m glad you enjoyed our service. We appreciate your support of our trusted, local, community-based business. If you need anything else, please get in touch. Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
Dan came to fit our new boiler today and did a great job, only taking 4 hours and the job was done so well! He was really friendly and explained everything clearly. His attention to detail was clear and much appreciated! Thank you!
Response from the owner:Hi Elizabeth, thank you for the lovely feedback. I’m glad Dan fitted your new boiler quickly and explained everything clearly—his attention to detail really matters to us. We appreciate you trusting our local, community-based team. If you need anything further, please let us know. Ryan Price - Owner Surrey Heating Specialists Thank You, Ryan Price
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