Worcester-Bosch Boiler Prices in 2026
Worcester Bosch gas combi boilers cost about £730–£2,989 to buy (boiler only, inc. VAT) in September 2026; fixed-price installs start from about £2,200–£2,500.

Introduction
Worcester-Bosch is a reputable and established company in the UK that designs and manufactures home heating products, including natural gas and oil boilers.
But what are the benefits of using Worcester-Bosch boilers? What are the prices that you can expect?
In this guide, you’ll find out everything you need to know about Worcester-Bosch boiler prices, including their boiler types and where you can purchase them.
Who is Worcester-Bosch?
Worcester-Bosch has over 60 years of experience, which has earned them a Royal Warrant to supply boilers to the Sandringham Estate.
They have a full range of boilers suitable for homes of all sizes and customers with specific budgets.
When it comes to their reputation, Worcester-Bosch has an excellent online rating, with a 4.6/5 score on Trustpilot out of over 41,700 individual reviews. This makes them one of the highest-rated boiler suppliers in the UK.
Worcester-Bosch Combination Boiler Prices
Combination boilers are popular in the UK, because they don’t require a cold water tank or hot water cylinder. Plus, they can provide instant hot water as they take water from the mains.
This boiler type is also highly efficient and cost-effective, with some models available for under £500, depending on the supplier.
Worcester-Bosch’s combination boilers range from a 25kW power output (one- or two-bedroom homes) to a 42kW power boiler (four- or five-bedrooms home with up to two bathrooms).
Below are some of the prices for their combination boilers.
| Boiler Name | Power Output | Warranty | Example of Suppliers | Pricing (including VAT) |
|---|---|---|---|---|
| Worcester Greenstar 25Si Combination Boiler | 25kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,438.80 – £1,763.99 |
| Worcester Greenstar 30i Combination Boiler | 30kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,564.27 – £1,996.81 |
| Worcester Bosch Greenstar 29CDI Classic Combination Boiler | 30kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,526.80 – £2,129.94 |
| Worcester Bosch Greenstar 34CDI Classic Combination Boiler | 30kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,378.80 – £2,348.75 |
| Worcester Bosch Greenstar 38CDI Classic Combination Boiler | 38kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,840.26 – £2,647.86 |
| Worcester Bosch Greenstar 42CDI Classic Combination Boiler | 42kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £2,001.34- £3,156.06 |
Worcester-Bosch System Boiler Prices
System boilers traditionally require a hot water cylinder to store water, which is taken from your mains. This boiler type is suitable for properties of all sizes, from one-bedroom flats to five-bedroom houses.
In addition, these boilers are compatible with renewable energy like solar. They also provide instant hot water from multiple locations, such as a tap and a shower.
| Boiler Name | Power Output | Warranty | Example of Suppliers | Pricing (including VAT) |
|---|---|---|---|---|
| Worcester Greenstar 12i System Boiler | 12kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £989.98 – £1,018.80 |
| Worcester Greenstar 18i System Boiler | 18kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,050 – £1,865.05 |
| Worcester Greenstar 21i System Boiler | 21kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,057.06 – £1,178.69 |
| Worcester Greenstar 24i System Boiler | 24kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,160.29 – £1,442.10 |
| Worcester Greenstar 30CDI System Boiler | 30kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,234.80 – £1,430.40 |
| Worcester Greenstar 35CDI System Boiler | 35kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,632.61 – £2,367.78 |
Worcester-Bosch Regular Boiler Prices
Regular or conventional boilers traditionally require both a cold water tank and a hot water cylinder. This boiler takes water from the cold water tank, heats it, then stores it in the cylinder.
This boiler type might be best suited to households with high water requirements, because you can use hot water in multiple locations. However, once your hot water is gone, you will have to wait for more to be heated up.
Worcester-Bosch’s regular boilers have most of the standard power outputs for up to three- or four-bedroom houses.
Here are some of the prices you can expect for Worcester-Bosch regular boilers.
| Boiler Name | Power Output | Warranty | Example of Suppliers | Pricing (including VAT) |
|---|---|---|---|---|
| Worcester Greenstar 12Ri Regular Boiler | 12kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,158.41 – £1,267.76 |
| Worcester Greenstar 15Ri Regular Boiler | 15kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,186.90 – £1,251 |
| Worcester Greenstar 24Ri Regular Boiler | 24kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,333.80 – £1,414.99 |
| Worcester Greenstar 27Ri Regular Boiler | 27kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,452.26 – £1,503 |
| Worcester Greenstar 30Ri Regular Boiler | 30kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £1,505.21 – £1,603.19 |
| Worcester Bosch Greenstar 8000 Life 40kW Regular Gas Boiler | 40kW | 5-year warranty | Screwfix, PlumbNation, City Plumbing | £2,321.98 – £2,360.39 |
Worcester-Bosch Oil Boiler Prices
Worcester-Bosch also offers oil boilers, which can be an excellent fit if you don’t have access to the mains gas network.
Oil boilers are energy-efficient; however, some of the negatives are that they’re expensive and you need regular oil deliveries.
Here are some of the Worcester-Bosch oil boiler prices.
| Boiler Name | Power Output | Warranty | Example of Suppliers | Pricing (including VAT) |
|---|---|---|---|---|
| Worcester Bosch Greenstar Danesmoor Utility 12/18kW Regular Oil Boiler – 2022+ | 18kW | 5-year warranty | PlumbNation, City Plumbing Supplies | £2,053 – £2,217.59 |
| Worcester Bosch Greenstar Danesmoor 25/32kW Utility System Oil Boiler – 2022+ | 25/32kW | 5-year warranty | PlumbNation, City Plumbing Supplies | £2,713.19 – £3,016.55 |
| Worcester Bosch Greenstar Heatslave II 18/25kW ErP External Combi Oil Boiler | 25/32kW | 5-year warranty | PlumbNation, City Plumbing Supplies | £3,900.69 – £3,907.19 |
| Worcester Greenstar Danesmoor 32/50 Utility Oil Boiler 2022+ | 32/50kW | 5-year warranty | PlumbNation, City Plumbing Supplies | £3,058.19 – £3,138 |
FAQs
What boilers does Worcester-Bosch offer?
Worcester-Bosch offers combination, system, and regular/conventional boilers. These models are powered by various fuels, such as natural gas, LPG, and oil.
There’s also a choice of power outputs, which means that you can customize your boiler to heat just the right amount to conserve energy. Worcester-Bosch prices will depend on all of these factors and the supplier.
What is the cheapest Worcester-Bosch boiler?
One of the cheapest Worcester-Bosch boilers is the Greenstar 12i System Boiler priced at £989.98.
Which Worcester-Bosch boiler is the best?
These are the factors to consider when choosing boiler models:
- Your budget
- The size of your home
- Your available space
- What kind of boiler you’re replacing
- Whether you have access to gas mains
- The customer support from your supplier
For instance, if you don’t have access to gas mains, an oil boiler will be the right fit for you. However, if you have access to gas mains and you don’t have a lot of space, you might want a compact combination boiler.
What power boiler do I need for my home?
Here are some examples to guide you.
12kW – 15kW: Suitable for one-bedroom flats with one bathroom
20kW – 24kW: Suitable for a two-bedroom home with one bathroom
25kW – 30kW: Suitable for a two- or three-bedroom home with one bathroom
30kW – 42kW: Suitable for three-, four- or five-bedroom homes with up to two bathrooms
What other products does Worcester-Bosch offer?
These are the other products and accessories that Worcester-Bosch manufactures:
- ✔ Boiler controls
- ✔ Hot water cylinders
- ✔ Solar water heating
- ✔ Heat pumps
Can I get financing help for my new boiler?
With the government ECO (Energy Company Obligation) scheme, you can get help purchasing your new boiler either outright or heavily subsidised as long as you fit within these categories:
- You’re on benefits.
- You’re a homeowner.
- Your boiler is over 5 years old.
Other grants can help you substantially with your boiler costs.
Conclusion
Worcester-Bosch offers many boiler models, which range in both power outputs and pricing. There are also many suppliers that can help you find the right fit for your home.
Do you want a custom quote for your boiler needs in mere minutes?
Fill out the form at the top of the page to find out more, or you can check out the guides on this site.





