Navien Boilers in London

At Ninja Boilers, we install Navien boilers across London for homeowners seeking high efficiency and cutting-edge heating. Navien combines advanced condensing technology with sleek design, delivering reliable and eco-conscious performance. Enjoy energy savings and flexible finance, including 12-month 0% interest options.

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Navien boiler in London

Why Choose Navien?

Navien is a global leader in high-efficiency condensing technology. Originally from South Korea, Navien boilers are known for their ultra-high energy efficiency, low emissions, and smart home compatibility.



Their UK range is designed to meet British heating needs, with excellent hot water performance and robust warranties.

Popular Navien Boiler Models

  • NCB 300 Combi
    Compact yet powerful, perfect for small to medium homes.
  • NCB 500 Combi
    Higher hot water flow rate for larger households.
  • NCB 700 ON
    Industry-leading modulation range and integrated smart control.

Thinking About Navien Boiler?

We offer free home surveys, transparent quotes, and fast installations across London.

Is a Navien Boiler Right for You?

Choose Navien if you value:

  • High-efficiency condensing tech and low CO₂ emissions
  • Quiet operation and modern design
  • Smart compatibility (OpenTherm, weather compensation)
  • Long warranties and low long-term running costs

Ideal for energy-conscious households and tech-forward homes.

Our Navien Boiler Services in London

  • Installation by Qualified Gas Safe Engineers
  • System Upgrades & Smart Control Setups
  • Annual Servicing & Efficiency Checks
  • 0% APR Finance Over 12 Months
  • Warranty Registration & Ongoing Support

Why Choose Ninja Boilers?


  • Trusted Local Engineers – Based in London, serving homes city-wide
  • Gas Safe Registered – All installations certified and compliant
  • Transparent Pricing – No hidden costs or surprise charges
  • Fast Turnaround – Installation in as little as 24 hours
  • Flexible Finance – Spread the cost with 0% over 12 months
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FAQs

Are Navien boilers energy-efficient?

Yes, Navien offers some of the most efficient domestic boilers in the UK market.

What is the lifespan of a Navien boiler?

With proper maintenance, expect 10–15+ years of reliable use.

Do Navien boilers qualify for green incentives?

Yes, their eco credentials may make you eligible for grants or energy incentives.

Are they suitable for large homes?

Yes—especially the NCB 500 and NCB 700 models.

Do you offer finance on Navien boilers?

Yes, Ninja Boilers offers 0% finance for up to 12 months.

Book a Local Boiler Engineer Today

From installation to aftercare, Ninja Boilers is your trusted partner for Boiler Installations and Repairs in London. Whether you need help with a smart upgrade, an emergency fix, or a full commercial installation — we’re here to help.