Selecting the right heating solution for your home can be challenging, especially if you’re having to go through the process with an off-grid property. If an oil boiler replacement is on your radar, then Worcester Bosch is the UK’s number one choice for reliable, efficient heating solutions. With their huge range of oil boilers and competitive prices, they’ve managed to gain the trust of homeowners around the country for over 150 years.
In this blog we’ll cover everything you need to know about Worcester Bosch oil boiler prices in 2025 so you can make the correct choice for your home heating.
ECO Boiler Grants only installs the best boilers in the market and systems on the market to always ensure our customers are in safe hands and comfortable. Our dedicated team has installed thousands of Worcester Bosch boilers around the country, while securing homeowners with extended warranties of 12 years for your peace of mind! Fill in our simple 1-minute eligibility form and check if you qualify for a free A-rated Worcester Bosch boiler!
Worcester Bosch Oil Boiler Prices
Worcester Bosch oil boiler prices vary remarkably based on model type, output, and additional characteristics. For homeowners in the UK, it’s crucial to know the price ranges to properly budget your heating replacement.
Combi Oil Boilers:
Worcester Bosch Greenstar Heatslave II boilers are the most advanced oil combi boilers currently offered by the company. The popular 25/32kW version is between £2,350-£3,931 for the unit supply only. For installation you can expect to pay between £3,650-£4,150.
System Oil Boilers:
Worcester Danesmoor system boilers are seen as a very good value for large families. The Greenstar Danesmoor 18/25 system oil boiler costs approximately £1,893 for the unit supply-only, with the full cost of installation standing between £3,193-£3,693. External models, such as the Greenstar Danesmoor External 18/25, cost approximately £2,297 supply-only, with full cost of installation between £3,597-£4,097.
Regular Oil Boilers:
For homeowners looking to install traditional boilers, Worcester also offers a variety of standard oil boilers. The Greenstar Danesmoor Utility 18/25 standard oil boiler costs around £1,553, with full installation prices from £2,853-£3,353. The higher-capacity Greenstar Utility 50/70 costs more, standing between £3,501-£4,399.
What Influences Worcester Bosch Oil Boiler Prices
There are several factors that are involved in determining the total cost of your Worcester oil boiler installation including boiler output and installation difficulty. Higher kW outputs demand higher prices, as an 18kW version, for example, will be significantly lower-priced than a 50kW version designed for larger properties. The installation difficulty will also play a part as simple like-for-like replacements are lower-priced, while system changes or relocations can cost an extra £500-£2,000.
You should also take into consideration your location, if you live in an inner-city area such as London, you can expect more expensive labour costs. If you choose to have extra add-ons such as system filters, better flues, and smart controls, a further £300-£800 can be added to your total bill.
Why Worcester Bosch Oil Boilers?
Worcester Bosch has been the UK’s most trustworthy boiler manufacturer for years, and their oil boiler range is the reason why they stand out to millions of homeowners. They are set apart by high efficiency and performance. The new Worcester oil boilers achieve remarkable efficiency rates of up to 94%, far surpassing older boilers, which were often only 60-70% efficient. The Greenstar Heatslave II range achieves 91% efficiency, coming with an ErP A-rating, saving homeowners up to £400 a year compared to older G-rated boilers.
These efficiency improvements are all achieved through advanced condensing technology, where it captures and reuses heat from flue gases to utilize fuel to its fullest capacity. The advanced cross-firing burner design and modulating system ensure that your boiler modulates its output according to actual heating demands rather than wasting energy.
Worcester Bosch is also the preferred choice for many homeowners as it offers some of the best warranty terms in the market for oil boilers. Standard oil boiler warranties are for 2 years, but when installed by a Worcester Accredited Installer, such as ECO Boiler Grants, with system filter, homeowners get up to 7 years warranty. The extended protection is indicative of the confidence that Worcester has in their quality of build and provides reassurance to homeowners.
Worcester Bosch are also known for their compact and versatile designs, with the Greenstar Heatslave II range being the UK’s top-selling oil boiler range, partially due to its slim line, giving it the ability to sit under kitchen worktops. This saves space, proving that Worcester oil boilers are a good choice for homes where space is tight, giving users flexibility that many competitors do not offer.
Looking to upgrade your boiler for free? Fill in our simple1-minute eligibility form and find out if you qualify for the latest combi boiler at no cost funded under the ECO4 scheme.
Government Grants and Funding Options
For eligible UK homeowners, there is substantial government funding to support oil boiler replacements. Extensive support for qualifying homes is provided by the ECO4 scheme, which pays for the full cost of your new boiler, installation and any other heating system upgrades your home might need, such as radiators and advanced heating controls.
The ECO4 scheme specifically targets replacing inefficient oil boilers that are more than 8 years old with new energy-efficient ones. Qualifying households can be granted more than £15,000 in grants. Discover whether you are eligible for a free Worcester oil boiler replacement, by completing our simple and easy online form. This 60-second check could save you hundreds on your heating replacement.
Comparing Oil Boiler Running Costs
Though up-front purchase costs matter, the running expenses have a large influence on your overall heating bill in the long run. New Worcester oil boilers provide considerable operating savings when compared to older, less efficient units. Oil remains an effective off-grid home heating fuel with more heat capacity than available natural gas products. Condensing oil boilers, operating on 90% and higher efficiency rating, convert almost every bit of fuel to usable heat. Oil prices are more volatile than gas, however, so high-efficiency boilers become that much more crucial to maintain affordable heating costs.
Conclusion: Smart Choice for your Central Heating
Worcester Bosch oil boilers are excellent value for UK homeowners who require efficient, reliable off-grid central heating. Priced from £2,800-£6,000 fully installed according to your requirements, the systems offer high-performance sophistication, comprehensive warranties, and a huge payback over the long run.
The combination of proven reliability, cutting-edge efficiency technology, and full warranty peace of mind makes Worcester oil boilers an intelligent decision for the heating future of your property. With potential ECO4 grant aid available, upgrading your boiler to a new Worcester system has never been a better value.
Avoid wasting money on an old oil boiler. Check if you are eligible for our free boiler scheme today! We can fit a brand new Worcester Bosch oil boiler completely free of charge. Complete our simple eligibility form now and begin to make your home warmer and for less.
