Worcester-Bosch Greenstar 4000

Worcester-Bosch is the UK's leading boiler and heating manufacturer and the only brand to achieve the Which? Best Buy Award for 12 years running. 

The Worcester Bosch Greenstar 4000 series is one of the brand's latest innovations, replacing their best-ever-selling boiler, the Greenstar i. 

Designed to sit between the 2000 and 8000 series boilers, the 4000 is the brand's mid-range boiler offering. 

The 4000 is available as a combi or system boiler and is offered in multiple sizes including 25kW and 30kW, with an impressive 10-year guarantee for parts and labour.

How much does the Worcester Bosch Greenstar 4000 cost? 

For a standalone Worcester Bosch 4000 boiler, prices can range from £700 - £2,000 and are available in a wide range of sizes. However, it's worth bearing in mind that these prices don't include Gas-safe installation or any additional labour.

With a Gas-Safe installation, you'll be looking at £2,050 - £3,900. And, at Heatable, we can fit your Worcester Bosch boiler in as little as 24 hours.

How much can a Worcester Bosch 4000 save you? 

This will depend on the efficiency of your current boiler and the new boiler you're searching for, but a Worcester Bosch boiler could save you as much as £540 per year if you upgrade from an old G-rated boiler to a modern A-boiler.

Which sizes is the Worcester Bosch Greenstar 4000 available in? 

The Greenstar 4000 combi boiler range is available in the following sizes (power outputs):

• 25kW
• 30kW

The 25kW combi boiler has a heat output of 25kW and a flow rate of 10.5 l/min, making it suitable for small properties and flats that may have limited hot water demands. 

The 30kW has an additional 5kW of power and a flow rate of 12.3 l/min making it suitable for medium-sized properties with higher hot water demands.

Why get your Worcester Bosch boiler installed with Heatable?

Upgrading your home with a brand-new boiler from Heatable isn't just a significant improvement; it's a choice that comes with myriad benefits. When you choose us for your installation, you're choosing quality assured by our Gas Safe certified installation team.

Additionally, we back our workmanship with a comprehensive 24-month installation warranty.

Our commitment to excellence extends beyond installation. We pride ourselves on providing exceptional aftercare and support. This dedication to quality service is why we became the first boiler industry member to be recognised as a Which? Trusted Trader. It's also the reason behind our thousands of 5-star reviews on the independent review platform, Trustpilot.

How long should a Worcester Bosch boiler last?

Worcester Bosch boilers are designed to have a lifespan of around 10 to 15 years, but there's no reason they can't last longer if they are serviced and maintained.

How long is a Worcester Bosch 4000 guarantee?

For the Worcester Bosch Greenstar 4000, the guarantee is 10 years.

Which Worcester Bosch boiler do you need?

The precise model that is right for you will depend on your specific goals and budget. If you would like us to recommend a variety of boilers that would be suitable for your home, use our free tool here.