Expert Boiler Service in South London & Surrey

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G Brown
18/02/2025
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Great service, professional and communicates promptly. Needed a tap replacing as this was leaking. Top notch - thanks.
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Tracy Drummond
16/02/2025
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Prompt response to call out of hours, Friday night. Arrived within 30 minutes and water leak stopped and repaired in 30 minutes. Very impressed thank you - highly recommend
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Jason R
03/02/2025
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Plamen has been an absolutely top-class professional throughout. He replaced the blown thermostats in our immersion heater and also went out of his way to find ones that were reasonably priced (several were excessively priced). Here he really went above and beyond, which took him many hours of driving to find and then return and finish the job! He also helped me balance the pressure in our underfloor heating and provided some really helpful advice and tips with other aspects of the heating system, again demonstrating his deep knowledge and expertise. I will 100% be coming back to Topflow if we need any help in the future!! Thank you kindly - another very happy customer :)
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Roman Bryl
25/01/2025
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Plamen was very efficient, polite and did a great job at a reasonable price.
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jc n
21/01/2025
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Plamen has done a few repairs on my boiler. He is always on time, he send me updates and leaves the place spotless when done.?
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Kim Esnard
16/01/2025
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Excellent service! Prompt, professional and efficient. Completely changed my waste disposal unit and replaced it with a standard unit. Very helpful, clean and affordable service.
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Lady Jo
14/01/2025
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Plamen came today at very short notice. I found his details in checkatrade. My kitchen was flooded with water due to blocked kitchen sink. He said he could be at my place after finishing another job and he arrived in less than 1 hour. He wore shoe protectors to avoid leaving any dirt on my floor. He unblocked the drain, gave me some good advice. Very courteous and professional. I will definitely call him again and he also does handyman work.
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Radul Chavdarov
07/01/2025
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Quick and great work, i would recommend anytime. Thank you
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Sparsh Jain
30/12/2024
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Excellent plumbing service in Sutton
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Steve Lione
28/12/2024
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Just had to comment on the fantastic sevice, telephoned a number of plumbers with no response, this guy was brilliant said could come out same day but would be 8 o'clock at night, he asked for pictures and rang to say could do 7! Arrived on time,very friendly,had everything with him, did the the job spot on, clean tidy and respectful,what can I say would definitely recommend, would use again without hesitation!

Keep Your Home Safe & Warm with Regular Boiler Servicing

At TopFlow Services, we offer professional and affordable boiler servicing to homes across Sutton, Carshalton, Cheam, Epsom, Banstead, Coulsdon, Purley, Morden, New Malden, Wimbledon, Raynes Park, and Worcester Park. Whether you have a combi, system, or conventional boiler, our Gas Safe registered engineers ensure your system is running safely and efficiently.

Why Regular Boiler Servicing Matters

  • ✔️ Prevent unexpected breakdowns

  • ✔️ Maximise energy efficiency

  • ✔️ Extend the life of your boiler

  • ✔️ Maintain your manufacturer warranty

  • ✔️ Identify issues before they become costly repairs

There is two type of boiler service

Annual boiler service

 

Our annual boiler service includes:
* Gas supply tightness test
* Safe operation check of the gas appliance, including flue gas analysis
* Flue system inspection
* Controller operation check
* Cleaning of magnetic filter and condensate trap

 

Price: £95 per unit

Comprehensive boiler service

Our comprehensive boiler service includes a full strip-down and the following:
* Gas supply tightness test
* Safe operation check of the gas appliance, including flue gas analysis
* Flue system inspection
* Controller operation check
* Cleaning of magnetic filter and condensate trap

* Main Heater exchanger cleaning 
* Full boiler strip-down and internal component inspection

Parts such as the burner seal est are not included in that price.

Price: £150 per unit

We proudly offer boiler servicing across:

 

  • Sutton

  • Wallington 
  • Carshalton

  • Cheam

  • Epsom

  • Banstead

  • Coulsdon

 

  • Morden

  • New Malden

  • Wimbledon

  • Raynes Park

  • Worcester Park

  • Purley
areas served map

Transparent Pricing & Flexible Appointments

We believe in fair, upfront pricing — no hidden charges. Whether it’s an annual check or a pre-winter service (comprehensive service), we can arrange convenient weekday or weekend visits.

Need urgent help? We also offer emergency boiler repairs if your system fails unexpectedly.

Why chooses us for boiler service

five stars

Highly rated

We are trusted by homeowners and businesses across your area - just see our perfect 5-star Google reviews!

customer service

Great customer service

Expect friendly service from someone that genuinely cares. We treat your home like it’s our own - neat, tidy, and respectful.

guarantee

Satisfaction guaranteed

We fix it right the first time. Our work is backed by a satisfaction guarantee, so you can trust it’s done right.

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Transparent pricing

Nobody likes surprise costs, especially when it comes to home repairs. Get an upfront quote with no hidden fees.

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Honest & trustworthy

When you choose us, you can trust that we’ll do an honest job. We are licensed, insured, and highly rated by local customers.

24/7 availability

24/7 emergency plumbing

Burst pipe at 2am? We’ve got you covered with fast, reliable, round-the-clock emergency services that you can rely on.

Call now

Get in touch for a free quote

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Boiler service FAQs

We recommend servicing your boiler once a year to ensure it’s working safely and efficiently.

A standard boiler service usually takes 30 to 60 minutes depending on the model and condition.

Yes – like a car MOT, servicing can prevent future breakdowns and is often required to keep your warranty valid.

Absolutely. We provide a full service report and certification after every visit.

 Yes. All our boiler engineers are fully qualified and Gas Safe registered.

No, we do not charge a call-out fee. Whilst some plumbers will charge a call out fee and often not fix your issue, we offer a satisfaction guarantee and will make sure we always deliver work to the highest standards or your money back. We are happy to visit you to properly assess the job and give you a free quote before we begin work.

Any additional costs such as parts will be factored into your quote, so you can rest assured knowing you have a fixed price. We pride ourselves on our customer satisfaction and delivering the highest quality work. This includes making you feel relaxed and confident in us throughout the process.