Worcester Bosch Greenstar 4000 Combi Boiler Installation in Castle Cary, Somerset
17/09/2026
Our Gas Safe engineers recently completed the installation of a Worcester Bosch Greenstar 4000 25kW combi boiler at a property in Castle Cary, Somerset, replacing an older boiler with a modern, energy-efficient heating system.
Why Upgrade to a Worcester Bosch Greenstar 4000?
Replacing an ageing boiler with a modern condensing combi boiler can significantly improve the performance of your heating and hot water system while reducing energy consumption.
The Worcester Bosch Greenstar 4000 is a popular choice because it offers:
- Excellent energy efficiency
- Quiet operation
- Compact design
- Reliable heating and hot water
- User-friendly controls
- Long manufacturer warranties
For many homeowners, it’s an ideal replacement for older combi boilers that have become unreliable or expensive to repair.
Work Completed
Our Gas Safe engineers removed the old boiler and installed a new Worcester Bosch Greenstar 4000 25kW combi boiler, complete with a new flue, wireless programmable thermostat, scale reducer and shock arrestor. The heating system was powerflushed and chemically cleaned before the new boiler was fully commissioned and tested, with an 10-year Worcester Bosch manufacturer’s warranty registered for added peace of mind.
Why We Install Modern Heating Controls
This installation included a wireless programmable room thermostat, allowing the homeowner to control their heating more efficiently.
Modern heating controls can help:
- Improve comfort throughout the home.
- Reduce unnecessary energy use.
- Lower heating bills.
- Maintain a more consistent indoor temperature.
- Get the best performance from a modern condensing boiler.
Protecting the New Boiler
Installing a new boiler is also about protecting it for the future.
Chemical Clean
Before commissioning the boiler, we carried out a chemical clean of the heating system to remove sludge, corrosion deposits and debris that naturally accumulate inside radiators and pipework.
Cleaning the system helps to:
- Improve heating efficiency.
- Restore radiator performance.
- Reduce the risk of future breakdowns.
- Protect the new boiler’s heat exchanger.
- Extend the life of the heating system.
Why Choose Worcester Bosch?
Worcester Bosch is one of the UK’s most trusted boiler manufacturers, known for producing reliable and efficient heating systems. Their boilers are popular with homeowners thanks to their proven reliability, quiet operation, strong manufacturer support and long warranty options.
Looking for a Worcester Bosch Boiler Installer in Castle Cary?
If you’re considering replacing your existing gas boiler, Total Energy Services can help. Our Gas Safe engineers install Worcester Bosch boilers throughout Castle Cary, Somerset and the surrounding areas, delivering professional installations, honest advice and excellent aftercare.
Contact us on 01963 580010 today for a free, no-obligation quotation or fill in the enquiry form and one of our team will be in touch.
