One hour response

Same day appointments

24/7 Service

Boiler Installation

RCB Plumbing Ltd provides professional boiler installation services across South London And Surrey including Sutton, Carshalton and Epsom. Our Gas Safe registered engineers ensure a seamless transition to your new, energy-efficient heating system with minimal disruption to your home.

Why choose a new boiler?

Modern boilers offer significant improvements in efficiency, reliability, and heating control compared to older models.

By upgrading your boiler, you can enjoy reduced energy bills, improved performance, and the peace of mind that comes with a manufacturer's warranty.

Energy Efficiency

New A-rated boilers operate at over 90% efficiency, potentially saving you up to 30% on your heating bills compared to older models.

Reliable Heating

Modern boilers provide more consistent heating with fewer breakdowns, backed by manufacturer warranties for complete peace of mind.

Qualified & experienced

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Our Boiler Partners

We work with trusted boiler manufacturers to make sure you get a heating system that is reliable, efficient and built to last. By installing proven brands, we can recommend the right boiler for your home with confidence and give you peace of mind from day one.

We install boilers from leading names including Worcester Bosch, Ideal, Vaillant, Glowworm and Baxi. These manufacturers are well known for their quality, strong performance and dependable warranties, making them a popular choice for homeowners who want long-term value from their new boiler.

Each brand offers a range of models to suit different property types, heating demands and budgets. Whether you need a compact combi boiler for a smaller home or a more powerful system for higher hot water demand, we can help you choose a boiler that delivers the right balance of efficiency, comfort and reliability.

As experienced installers, we only recommend boilers we trust to perform well in real homes. Choosing one of these recognised brands means you benefit from modern energy-saving technology, consistent heating and hot water, and the reassurance of manufacturer-backed support.

Vaillant Advance Extended Warranty

The Vaillant Advance Extended Warranty offers extra peace of mind for your new Vaillant boiler. This enhanced, manufacturer-backed warranty is available for select boilers installed by an eligible Advance installer, protecting your boiler for longer.

The main benefit is extended coverage, providing reassurance and helping to reduce unexpected repair costs if a fault occurs. For example, installing a qualifying Vaillant boiler to the manufacturer's standards can grant you a longer warranty than the standard offering. This means more protection for your investment and greater confidence in your heating system.

At RCB Plumbing, we can advise if a Vaillant boiler and the Advance Extended Warranty are right for you. We'll explain your options, confirm eligibility, and perform the installation to the required standards, allowing you to access the warranty through us. It’s a simple way to enjoy reliable heating with the added security of extended cover from Vaillant.

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Our trusted process

1. Contact us

Get in touch to discuss your current boiler, heating needs, and any issues you're facing. We'll answer your questions and schedule the next step at a convenient time.

2. Home survey

We'll visit your home to assess your current heating system, property size, and hot water demand. This allows us to recommend the right boiler and provide an accurate quote.

3. Book your installation

Once you approve the quote, we'll book your installation for a date that works for you and explain what to expect.

1. Pay the deposit

To secure your installation date and confirm your booking, we require an agreed-upon deposit.

2. Boiler installation

Our Gas Safe registered engineers will install your new boiler safely and efficiently with minimal disruption. We'll test the system and show you how to use your new controls.

3. Pay the remaining balance

The final balance is due once the installation is complete. You can then enjoy reliable and efficient heating.

Frequently Asked Question

How long does a boiler installation take?

Most standard boiler replacements take 1-2 days to complete. A straight replacement can often be completed in a single day, while system changes or relocations may require additional time.

Which boiler is best for my home?

This depends on your property size, hot water demands, and current system. Combi boilers work well for smaller homes with limited space, while system or regular boilers may be better for larger properties with higher hot water demands.

What happens to my old boiler?

We handle the removal and environmentally responsible disposal of your old boiler as part of our service, ensuring all materials are recycled where possible.

How long will my new boiler last?

With regular annual servicing, a quality modern boiler should last 10-15 years. We recommend joining our boiler care plan to ensure your new system operates at peak efficiency throughout its lifespan.

What is the warranty booster care plan?

Our Warranty Booster Care Plan includes 2 years of complimentary servicing, priority breakdown response, and a dedicated helpline. It also helps retain your full manufacturer warranty.

Can you help me choose the right boiler size?

Yes. We assess your household size, usage, and heating demands to recommend the right boiler model and kW rating for maximum efficiency.

Are your installers Gas Safe registered?

Yes. All of our engineers are Gas Safe registered and trained to install Worcester Bosch boilers to the highest standards.

Do I need to be at home during the boiler installation?

Yes, we recommend that someone is at home for at least the start and end of the installation. This allows our engineers to confirm the work, carry out final checks, and show you how to use your new boiler and controls.

Will a new boiler help lower my energy bills?

In many cases, yes. Replacing an older boiler with a modern A-rated model can improve efficiency and reduce the amount of energy needed to heat your home, which may help lower your monthly heating costs.

Can you replace my boiler with a different type of system?

Yes, we can install smart heating controls as part of your new boiler installation. Smart controls give you better control over your heating, help improve efficiency, and make it easier to manage your system day to day.

What should I do before my boiler installation appointment?

Before the installation, it helps to clear access around the boiler, airing cupboard, and any areas where our engineers may need to work. We will talk you through anything else in advance so the installation can go ahead as smoothly as possible.

Need peace of mind?

Why not take a look at whats included in our care plans.

Boiler service only / New boiler plan

£15

inc vat

For keeping warranty valid

Sign Up

Essential Care Plan

£22.80

inc vat

For basic protection

Sign Up

Comfort Care Plan

£32.40

inc vat

For reliable family heating

Sign Up

Complete Care Plan

£42

inc vat

For total coverage

Sign Up

RCB Heat Club Home Care

£66

inc vat

Covering plumbing, drains and more

Sign Up

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%

100%

100%

Replacement Part Discount

10%

20%

100%

100%

Loyalty Discount

10%

20%

30%

30%

Discount on new boiler installation**

10%

30%

50%

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

Unvented Cylinder Service
(Additional £6+VAT)

Gas Fire Service
(Additional £7.50+VAT)

Electrical Cover
(Additional £9+VAT)

Boiler Service Plan - Warranty Booster

£12.50

/month + VAT

For keeping warranty valid
  • ✔ Annual Boiler Service
  • ✔ Priority Service
  • ✔ 1 Free Callout
  • ✖ Boiler Internals
Sign Up

Essential Care Plan

£19

/month + VAT

For basic protection
  • ✔ Annual Boiler Service
  • ✔ Priority Service
  • ✔ Free Callouts
  • ✔ Boiler Internals
Sign Up

Comfort Care Plan

£27

/month + VAT

For reliable family heating
  • ✔ Everything in Essential
  • ✔ System Water Test
  • ✔ Anti Corrosion
Sign Up

Complete Care Plan

£35

/month + VAT

For total coverage
  • ✔ Full Heating System
  • ✔ Pipework
  • ✔ Powerflush
Sign Up

RCB Heat Club Home Care

£55

/month + VAT

Covering plumbing, drains and more
  • ✔ Plumbing
  • ✔ Drains
  • ✔ Electrics
Sign Up

ready to upgrade your heating system?

Contact us today.

Contact RCB Plumbing Ltd today to discuss your new boiler installation and start enjoying more efficient, reliable heating.

RCB Plumbing serves local homes and businesses with honest advice, prompt response, and professional workmanship every time.

Contact us

42 Paget Avenue Sutton Surrey SM1 3BE

0208 2617499

© Copyright 2026| RCB PLUMBING HEATING RENEWABLES | All right reserved | Terms and Conditions | Company reg number: 12185970