🔥Cyber Monday: Get £200 off🔥
🔥Cyber Monday: Get £200 off🔥
🔥Cyber Monday: Get £200 off🔥
🔥Cyber Monday: Get £200 off🔥
🔥Cyber Monday: Get £200 off🔥
🔥Cyber Monday: Get £200 off🔥

Worcester Bosch Greenstar 4000 Combi

Available in 25, 30 kW

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Manufacturers 10 year warranty

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Hydrogen blend ready

Fixed price install from


inc VAT

Exceptional Bosch engineering

Introducing the Worcester Bosch Greenstar 4000 combi boiler, available through Padly for a seamless installation experience. This upgraded version offers exceptional performance, efficiency, and convenience. With its intuitive interface, adjusting heating and hot water settings is a breeze. The low energy pump reduces electricity usage, making it an eco-friendly choice. It has earned the Quiet Mark for quiet operation, ensuring a peaceful home environment. The Greenstar 4000 is available in combi and system versions to meet different home requirements. It is compatible with the Bosch EasyControl smart thermostat for remote temperature management. With a standard 5-year guarantee (extendable up to 10 years), you can feel secure in your investment.

Trust Padly for your boiler installation needs and enjoy the reliability and efficiency of the Greenstar 4000.

Experience the Game-Changing Benefits of the Worcester Bosch Greenstar 4000

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Wide power range to reduce gas and lower bills

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Reduce costs and save water with Quick Tap

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Stylish modern design with screen colour display

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Operates well in low pressure areas

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Wireless connectivity with Bosch EasyControl

Wall mounted Worcester Bosch boiler on a white wall inside a kitchen next to a hanging ceiling light shade

What's the specifics?

W 400 x D 310 x H 724
Warranty Length
Manufacturers 10 year warranty
Boiler Type
Efficiency Rate
Rated A (94%) for energy efficiency
Fuel Type
It's more than an install with Padly

What's included?

Boiler and pipework installation

Whether you’re getting a new improved system boiler or upgrading to a combi boiler, we appreciate that sometimes it’s necessary to have pipework alterations when a new boiler is installed. That’s why any pipework is included in the price of your installation.

Removal and disposal of your old boiler

At Padly we pride ourselves on ensuring our boiler installations are as easy and stress free as possible therefore, our engineers will ensure the removal and disposal of your old boiler is taken care of.

Removal of old tanks and pipework

If you’re looking to change from a system or heat-only boiler to a combination there will be no need for you to have a water tank in your attic freeing up space. Our installers remove old water tanks and boilers upon installation of your new system.

Chemical flush your system

After installing a brand-new boiler, we will complete a chemical flush, free of charge. Our engineers will complete a power flush designed to remove the sludgy build-up and grime that can accumulate in your central heating system over the years so you new boiler can work side by side with a clean central heating system.


Your new boiler installation will go hand in hand with a new thermostat. We will give you the choice of a standard replacement or upgrading to a smart thermostat to become compatible with smart home technology such as nest.


All our boilers come with a manufacturers warranty; however, the length of these warranties is dependent on the boiler you choose. For example, our Worcester Bosch Greenstar range comes with a warranty of up to 10 years.