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Boiler servicing

RCB Plumbing Ltd provides comprehensive boiler servicing by Gas Safe registered engineers across South London And Surrey including Sutton, Carshalton and Epsom. Our thorough maintenance checks ensure your heating system operates safely, efficiently and reliably throughout the year.

Professional boiler servicing across South London and Surrey

Regular boiler servicing helps keep your heating system running safely, efficiently and reliably throughout the year. At RCB Plumbing Ltd, we provide thorough boiler servicing across South London and Surrey, including Sutton, Carshalton, Epsom and surrounding areas. Our Gas Safe registered engineers follow manufacturer guidelines and carry out detailed checks designed to spot issues early and keep everything working as it should.

A yearly service isn’t just about ticking a box. It’s about making sure your boiler is operating safely, running efficiently, and less likely to break down when you need it most. Many customers book a service before winter, but regular maintenance at any time of year can help prevent unexpected problems.

Extended Lifespan

Professional servicing can add years to your boiler's operational life by identifying and addressing minor issues before they develop into major problems.

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Qualified & experienced

Why regular boiler servicing is important

Boilers work hard throughout the year, especially during colder months. Over time, components wear down, debris can build up inside the system, and efficiency can slowly drop. A professional service helps keep everything in good working order.

Helps prevent unexpected breakdowns - A service allows us to identify worn parts, pressure issues or early signs of failure before they turn into a complete breakdown. This can save both time and cost later on.

Keeps your boiler running efficiently - A clean, properly adjusted boiler burns fuel more effectively. That means better performance and potentially lower energy bills compared to a neglected system.

Maintains manufacturer warranties - Most boiler manufacturers require annual servicing to keep warranties valid. Missing services can sometimes affect cover, even if the boiler is relatively new.

Improves safety - Your boiler involves gas, pressure and combustion, so safety checks are essential. Servicing helps ensure everything is operating correctly and safely within manufacturer specifications.

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What's Included

Features

Annual Boiler Service

Priority Service & Call Outs

Free of Charge Call Outs

1 Free Callout

Boiler and all internals

Labour Cost Discount

10%

100%

Replacement Part Discount

10%

20%

100%

Loyalty Discount

10%

20%

30%

Discount on new boiler installation**

10%

30%

50%

Annual System Water Test

Annual System Anti Corrosion Treatment

Circulation pump

Thermostatic radiator valves

Timer/thermostat

Hot Water Cylinder

Radiators

Heating pipework

All gas supply pipes

System Powerflush (every 5 years)

Plumbing

Drains

Home Electrics

Optional Add-Ons

Covering plumbing, drains and more

✔ Plumbing
✔ Drains
✔ Electrics

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What our boiler service includes

Flue gas analysis : We use specialist testing equipment to check emissions and combustion performance. This helps ensure the boiler is burning fuel efficiently and operating safely.

Internal component inspection : We inspect key parts such as the heat exchanger, burner, ignition components and safety devices to identify wear or potential faults.

Pressure and system checks : We check system pressure, expansion vessel performance and general heating operation to make sure everything is functioning correctly.

Cleaning where required : Where appropriate, we clean accessible components to help improve performance and reduce strain on the boiler.

Safety checks : We confirm ventilation, flue positioning and overall safety operation in line with Gas Safe requirements.

Our trusted process

1. Survey

We discuss your heating needs and survey your property to recommend the perfect boiler system tailored to your specific requirements.

2. Quote

You'll receive a comprehensive, no-obligation quote outlining all costs, boiler options, and potential energy savings.

3. Job completed

Our Gas Safe engineers complete your installation efficiently, demonstrate the system, and provide all necessary documentation and warranties.

Boiler servicing for homeowners and landlords

We carry out boiler servicing for homeowners, landlords and managed properties across South London and Surrey. For homeowners, servicing helps maintain reliability and reduce the risk of winter breakdowns. For landlords, annual servicing also supports ongoing property maintenance and heating system safety.

We regularly attend properties in Sutton, Carshalton, Wallington, Banstead, Epsom, Worcester Park, Croydon, Mitcham and surrounding areas, working on a wide mix of flats, houses and rental properties.

Signs your boiler may be due a service

How long a boiler service takes

Most boiler services take around 45–60 minutes, depending on the boiler type, accessibility and condition. If we identify anything that needs attention, we’ll explain it clearly and advise on the next steps.

When to book your boiler service

Many customers choose to book a service in late summer or early autumn before the heating is used regularly. However, servicing can be carried out at any time of year. If your boiler hasn’t been checked in the last 12 months, it’s worth arranging one.

Local boiler servicing you can rely on

We provide boiler servicing across South London and Surrey with a practical, straightforward approach. Whether you have a Vaillant needing its annual check, a Glow-worm due for servicing, or a Worcester Bosch that hasn’t been looked at for a while, we’ll carry out a thorough service and make sure everything is working properly.

Frequently Asked Question

How often should I have my boiler serviced?

We recommend annual servicing for most residential boilers. This frequency maintains efficiency, ensures safety, and keeps manufacturer warranties valid. For landlords, annual servicing is a legal requirement for rental properties.

How long does a boiler service take?

A standard boiler service typically takes 30-60 minutes, depending on the boiler type and condition. If our engineers discover issues requiring additional attention, they'll provide a clear explanation and quote before proceeding with any repairs.

Will my boiler warranty be affected if I don't service it?

Yes, most manufacturer warranties require proof of annual servicing by a qualified engineer. Missing services can invalidate your warranty, potentially leaving you responsible for costly repair bills.

Is boiler servicing a legal requirement?

For homeowners, annual servicing is strongly recommended but not legally mandated. For landlords, however, annual gas safety checks (which include boiler servicing) are a legal requirement for all rental properties.

What are the signs my boiler needs servicing?

Warning signs include unusual noises, pressure fluctuations, inefficient heating, higher energy bills, or visible issues like leaks or discolouration around the boiler. However, many problems aren't visible, which is why regular servicing is essential.