Boiler installation
🔥 Gas Safe Registered • Energy for today. Designed for tomorrow.

Expert Boiler Installation Across London

Worcester Bosch, Vaillant & Baxi accredited installers. Up to 12 years manufacturer guarantee with every installation. Finance available.

12
Year Guarantee
500+
Boilers Installed
24hr
Response Time
0%
Finance Available
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Gas Safe Registered
Fully certified engineers
5-Star Rated
Google Reviews
🏆
Manufacturer Accredited
Worcester, Vaillant, Baxi
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0% Finance
Subject to status

London's Premium Boiler Installers

We don't just fit boilers — we design complete heating solutions tailored to your home, your budget, and your lifestyle.

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Free Home Survey
Our Gas Safe engineers visit your home to assess your heating needs, recommend the right boiler, and provide a fixed-price quote — completely free.
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Up to 12 Year Guarantee
Every installation includes a full manufacturer guarantee. Worcester Bosch Greenstar 8000+ comes with up to 12 years of peace of mind.
Same-Week Installation
No waiting months. Most boiler installations are completed within the same week, usually in a single day, minimising disruption to your home.
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Flexible Finance
Spread the cost of your new boiler with our 0% finance options. Monthly payments from as little as £20/month. All finance subject to status and credit checks.
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Filter & Protection Kit
Every installation includes a magnetic filter and full protection kit — essential for maintaining your guarantee and maximising boiler lifespan.
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Energy Efficient
Modern A-rated condensing boilers are up to 94% efficient, potentially saving you hundreds of pounds per year on energy bills compared to older models.

Premium Boilers We Actually Install

These are the exact boiler models we install in London homes. Each one comes with full manufacturer guarantee and our professional installation service.

Worcester Bosch — Up to 12 Year Guarantee

Worcester Greenstar 2000
Greenstar 2000
🏅 7 Year Guarantee
  • Quiet Mark certified (47 dB)
  • QuickTap technology
  • Bosch quality at lower price
  • Compact design
Worcester Greenstar 4000
Greenstar 4000
🏅 10 Year Guarantee
  • Super quiet operation
  • Contemporary design
  • QuickTap technology
  • High efficiency
Worcester Greenstar 8000+ Combi
Greenstar 8000+
🏅 12 Year Guarantee
  • 94% efficient
  • Innovative touch screen
  • Available in white or glossy black (Style)
  • 32kW & 36kW options

Vaillant — Smart Home Ready

Vaillant ecoTEC plus
ecoTEC plus
🏠 Smart Home Ready
  • Full system available
  • sensoHOME compatible
  • Stylish and efficient
  • Remastered design
Vaillant ecoFIT pure
ecoFIT pure
📏 Cupboard-Size
  • Compact for any home
  • Combi/system/open vent
  • Space-saving design
  • Versatile installation
Vaillant ecoTEC pro
ecoTEC pro
💧 Instant Hot Water
  • Smart combi boiler
  • Small to medium homes
  • Precision heating
  • Instant hot water

Baxi — Great Value

Baxi Main Eco Compact Combi
Main Eco Compact Combi
🔧 5 Year Warranty
  • Tried and tested
  • OpenTherm RF compatible
  • Compact design
  • Great value option

Every Installation Includes Full Protection Kit

Our protection kit is essential for maintaining your full manufacturer guarantee and maximising your boiler's lifespan. This isn't optional — it's included with every installation.

Complete boiler protection kit - filter, flue, chemicals

What's Included in Every Installation

  • Magnetic Filter — removes iron oxide sludge and debris
  • System Protection — chemical inhibitor prevents corrosion
  • Professional Flue Kit — safe exhaust gas removal
  • Full System Flush — clean system before new boiler
  • Guarantee Validation — required by all manufacturers
  • No Extra Cost — included in every installation quote
Important: This protection kit is mandatory for validating your boiler guarantee. Without it, manufacturers may void your warranty coverage.

Professional Powerflushing Service

Restore your heating system's performance and protect your new boiler investment.

Professional powerflushing service in London

Why Powerflush Before a New Boiler?

Over time, sludge, rust and debris build up in your central heating system, reducing efficiency and potentially damaging a new boiler. A professional powerflush clears your entire system, ensuring your new boiler operates at peak performance from day one.

  • Removes sludge, rust and limescale from pipes and radiators
  • Even heat distribution — no more cold spots on radiators
  • Reduces energy bills by improving system efficiency
  • Protects your new boiler and extends its lifespan
  • Required by many manufacturers to maintain guarantee
  • Thermal imaging verification to confirm completion

Your Boiler Installation in 4 Simple Steps

01
Free Home Survey
A Gas Safe engineer visits your home to assess your current system, discuss your needs, and recommend the perfect boiler for your property.
02
Fixed-Price Quote
No hidden fees. We provide a transparent, all-inclusive quote covering the boiler, installation, filter, and any additional work required.
03
Professional Installation
Our accredited engineers install your new boiler efficiently and cleanly. Most installations are completed in a single day with minimal disruption.
04
Register & Guarantee
We register your boiler with the manufacturer and provide your guarantee certificate. You’re covered for up to 12 years.

Boiler Installation FAQ

How much does a new boiler installation cost in London?
The cost of a new boiler installation in London varies depending on the boiler model, complexity of the installation, and any additional work required (such as powerflushing or system upgrades). Combi boiler installations typically start from around £1,800–£3,500 including installation. We provide free, no-obligation fixed-price quotes so you know exactly what you’ll pay. Finance options available from £20/month.
How long does a boiler installation take?
A straightforward combi boiler replacement is typically completed in one day (4-8 hours). If we’re changing the boiler location, converting from a traditional system, or carrying out additional work such as powerflushing, it may take 2 days. We’ll confirm the timeline during your free survey.
What areas of London do you cover?
We cover the entire Greater London area and surrounding areas within the M25. Whether you’re in Central London, North, South, East or West London, our Gas Safe engineers can reach you quickly.
Do I need a powerflush with my new boiler?
We strongly recommend a powerflush with any new boiler installation, especially if your current system is over 10 years old. It removes sludge and debris that could damage your new boiler. Many manufacturers require a clean system to validate their guarantee. We’ll assess your system during the survey and advise accordingly.
Which boiler brand is best?
The best boiler depends on your home’s size, hot water demand, and budget. Worcester Bosch Greenstar offers the longest guarantees (up to 12 years) and excellent reliability. Vaillant ecoTEC is known for efficiency and smart home compatibility. Baxi provides great value without compromising quality. We’ll recommend the best option during your free survey.
Are your engineers Gas Safe registered?
Yes, all our engineers are Gas Safe registered and manufacturer-accredited. This means they’re qualified to install, service, and repair gas appliances safely and to the highest standard. You can verify our registration on the Gas Safe Register website.

Get Your Free Boiler Quote Today

No obligation. No hidden fees. Just honest advice from Gas Safe registered professionals.

All finance subject to status and credit checks.