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Combi Boiler Installation: The Ultimate Guide for London Homes

Written by Eric Saayeng | Nov 17, 2025 11:35:15 AM
When it comes to efficient heating and hot water, combi boilers are a top choice for many London homeowners. At Trusted Boilers Ltd., we specialise in combi boiler installation across South London and North Surrey - including Sutton, Wimbledon, Croydon, Banstead, and Epsom.
 

What is a Combi Boiler?

A combi (combination) boiler provides both central heating and hot water directly from one compact unit. There’s no need for a separate hot water cylinder, making it ideal for homes with limited space.

 

Key Benefits of Combi Boilers

  • Space-saving design
  • Instant hot water on demand
  • High energy efficiency
  • Lower installation costs

Why Choose Trusted Boilers for Your Installation?

  • Gas Safe registered engineers
  • Accredited installers for Worcester Bosch, Vaillant, and Viessmann
  • Fast, tidy, and professional service
  • Transparent pricing with no hidden fees

Our Installation Process

  1. Free initial survey
  2. Personalised recommendation based on your property
  3. Quotation and scheduling
  4. Professional installation (usually 1–2 days)
  5. System testing and handover

Common Questions

How much does a combi boiler installation cost?
Typical installations range from £2,000–£10,000, depending on property size and requirements. Learn more about our installation services.
How long does it take?
Most installations are completed in 1–2 days.
Do you offer aftercare?
Yes - every installation includes a 1-year parts/labour warranty and access to ongoing maintenance.

 

Ready to Upgrade?

Contact Trusted Boilers Ltd today for a free quote or to discuss your options.
Contact us or call 020 4572 0447.
 
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