Worcester Bosch System Boilers

What Is a Worcester Bosch System Boiler?

A system boiler works with a separate hot water cylinder but does not require a cold water storage tank in the loft. This makes it a more compact and modern alternative to a regular boiler while still providing strong hot water performance.

Worcester Bosch system boilers are A-rated for efficiency and are designed to deliver consistent hot water to multiple taps or showers at the same time. This makes them ideal for larger homes or properties with more than one bathroom.

System boilers are often the best choice for homes where a combi boiler may struggle to meet demand, but where a full traditional system is no longer required.

The Current Worcester Bosch System Boiler Range

Worcester Bosch offers a range of Greenstar system boilers designed to suit different property sizes and heating requirements.

✔ Greenstar 4000 System

The most popular system boiler in the Worcester range. Designed for small to medium homes with higher hot water demand, it offers quiet operation and reliable performance. Available in outputs from 12kW to 24kW, it suits a wide range of properties.

✔ Greenstar 8000+ System

A premium system boiler designed for larger homes or higher demand properties. It features improved performance, quiet operation and a modern interface, making it a strong choice for more complex heating systems.

✔ Greenstar CDi FS System

A floor-standing system boiler designed for larger properties with significant heating and hot water demand. It provides high output performance and is well suited to homes with multiple bathrooms.

If you are unsure which model is right for your property, we will carry out a free survey and recommend the most suitable option based on your heating and hot water requirements. > Discover the full range of award winning Greenstar boilers

Why Choose a Worcester Bosch System Boiler?

Worcester Bosch has been recognised by Which? as a Best Buy brand for over 16 consecutive years. Their system boilers are known for reliability, performance and long-term value.

• A-rated efficiency across the full range
• Up to 12-year guarantees available
• Quiet operation
• Smart control compatibility
• Strong UK parts and support network

As Platinum Accredited installers, we register your warranty directly with Worcester Bosch after installation. This ensures your guarantee is activated correctly from day one.

Worcester Bosch System Boiler Installation

We install Worcester Bosch system boilers across a large area including, Buckinghamshire, Berkshire, Oxfordshire, Hertfordshire, Surrey and West London.

Every installation starts with a free survey where we assess your current system, calculate heating demand and confirm the most suitable boiler for your property. We then provide a clear, fixed quotation before any work begins.

On installation day, our Gas Safe engineers install your boiler to manufacturer specification, carry out full safety checks and commission the system properly. We also complete the Benchmark documentation and register your warranty.

All installations include a workmanship guarantee and payment is only due once the work is complete.

Worcester Bosch System Boiler Costs

The cost of a Worcester Bosch system boiler installation depends on the model selected, output required and the condition of your existing heating system. As a general guide, prices will vary depending on whether your cylinder or associated components also need upgrading.

For a full breakdown, visit our boiler costs guide. If you would prefer to spread the cost, flexible options are available on our boiler finance page.

We provide free surveys and clear, fixed quotations with no hidden charges. Speak to our Worcester Bosch installation team for expert advice and a tailored quote for your property.

Speak to our accredited Worcester Bosch installers for honest advice and a free fixed quotation.