Boiler broken down? Upgrade to a heat pump
Find out how much a heat pump would cost for your home
What is your current heating system? Complete a Short Form — Receive Free Quotes — Start Saving
Why get a heat pump?
  • Stop relying on gas
  • Slash your carbon footprint by up to 44%
  • Pair your heat pump with solar panels

Worcester Bosch Boiler Prices and Reviews

Written By
Updated on 4 August 2023

Worcester Bosch boilers offer proven reliability and energy efficiency

Their boiler prices run from £836 to £2,500

Fill out the form above to get boiler quotes from trusted installers

Considering the cost of a new boiler? You could go for Worcester Bosch.

Worcester Bosch was founded way back in 1962, and is one of the UK’s most trusted boiler manufacturers.

They offer a range of gas, Liquefied Petroleum Gas (LPG), and oil boilers, all with high reliability and energy efficiency – so you can be sure that Worcester Bosch has what you’re looking for in your home’s new boiler.

Read on to learn all the ins and outs of this successful boiler manufacturer. Alternatively, if you’d like to get a boiler quote now, head over to our short form. Once you’ve filled it out, our local installers will get in touch.

Three people put their feet on a radiator powered through a boiler

Worcester Bosch boiler prices start at around £836, for the Greenstar 2000, which is a regular or conventional boiler. The company’s most expensive model, the Greenstar Heatslave II External combi boiler, costs about £2,520.

There are upwards of 40 Worcester Bosch boilers to choose from, several of which offer a choice of power outputs. The boiler that’ll best suit your home will depend on a number of factors, such as the size of your property and the number of bathrooms it has.

Worcester Bosch makes combi, regular (or conventional), and system boilers, and the tables below list the typical prices of its different models.

A combi (short for combination) boiler heats water directly from the mains whenever a hot water tap is turned on. This means that, unlike a regular boiler, a separate hot water storage cylinder or a cold water storage tank isn’t needed.

Combi boilers are a very energy-efficient option, because the water is heated instantly rather than stored in a cylinder. They provide on-demand hot water for both radiators and taps, and are the most popular type of boiler in the UK.

Model

Efficiency Rating

Fuel Types

Solar Compatible

Output

Typical Price

Greenstar 25i A/A Gas/LPG No 25kW £975
Greenstar 30i A/A Gas/LPG No 30kW £1,075
Greenstar 25Si Compact A/A Gas/LPG No 25kW £1,075
Greenstar 30Si A/A Gas/LPG No 30kW £1,160
Greenstar 28CDi Compact A/A Gas/LPG Yes 28kW £1,000
Greenstar 29CDi Classic A/A Gas/LPG No 29kW £1,116
Greenstar 34CDi Classic A/A Gas/LPG No 34kW £1,169
Greenstar 32CDi Compact A/A Gas/LPG Yes 32kW £1,111
Greenstar 36CDi Compact A/A Gas/LPG Yes 36kW £1,528
Greenstar 38CDi Classic A/A Gas/LPG No 38kW £1,331
Greenstar 42CDi Classic A/A Gas/LPG No 42kW £1,600
Greenstar Highflow 440CDi A/B Gas/LPG No 29kW £2,130
Greenstar Highflow 550CDi A/B Gas/LPG No 30kW £2,475
Greenstar Heatslave II (3 models) A/B Oil Yes 18kW/25kW/32kW £2,869 (25kW model)
Greenstar Heatslave II External (3 models) A/B Oil Yes 18kW/25kW/32kW £2,772 (25kW model)

Conventional boilers, typically found in older properties, produce hot water for radiators via a cylinder – the kind that’s often in an airing cupboard. The source of the water is a storage tank, which is usually in the attic.

Model

Efficiency Rating

Fuel Types

Solar Compatible

Output

Typical Price

Greenstar 12Ri A Gas/LPG Yes 12kW £780
Greenstar 15Ri A Gas/LPG Yes 15kW £800
Greenstar 18Ri A Gas/LPG Yes 18kW £850
Greenstar 24Ri A Gas/LPG Yes 24kW £900
Greenstar 27Ri A Gas/LPG Yes 27kW £1,020
Greenstar 30Ri A Gas/LPG Yes 30kW £1,040
Greenstar 30CDi Classic Regular A Gas/LPG Yes 34kW £1,070
Greenstar 40CDi Classic Regular A Gas/LPG Yes 40kW £1,370
Greenstar FS 30 CDi Regular A Gas/LPG Yes 30kW £1,500
Greenstar FS 42 CDi Regular A Gas/LPG Yes 42kW £1,850
Greenstar Danesmoor (3 models) A Oil Yes 18kW/25kW/32kW £1,550 (25kW model)
Greenstar Danesmoor Utility (3 models) A Oil Yes 18kW/25kW/32kW £1,630 (25kW model)
Greenstar Danesmoor External (3 models) A Oil Yes 18kW/25kW/32kW £2,400 (25kW model)
Greenstar Utility Regular (2 models) B Oil Yes 50kW/70kW £2,170

System boilers don’t use a storage (or feed) tank because they heat water directly from the mains. They also have in-built hot water components, avoiding the need for a water tank. However, a system boiler does require a cylinder for storing hot water.

Model

Efficiency Rating

Fuel Types

Solar Compatible

Output

Typical Price

Greenstar 9i System A Gas/LPG Yes 9kW £795
Greenstar 12i System A Gas/LPG Yes 12kW £825
Greenstar 15i System A Gas/LPG Yes 15kW £855
Greenstar 18i System A Gas/LPG Yes 18kW £890
Greenstar 27Ri A Gas/LPG Yes 27kW £1,020
Greenstar 24i System A Gas/LPG Yes 24kW £930
Greenstar 27i System A Gas/LPG Yes 27kW £995
Greenstar 30i System A Gas/LPG Yes 30kW £1,035
Greenstar 30 CDi Classic System A Gas/LPG Yes 30kW £1,065
Greenstar 35CDi A Gas/LPG Yes 34kW £1,195
GB162 (2 models) A Gas only Yes 50kW/65kW £1,920 (50kW model)
Greenstar Danesmoor System (3 models) A Oil Yes 18kW/25kW/32kW £1,750 (25kW model)
Greenstar Danesmoor System Utility (3 models) A Oil Yes 18kW/25kW/32kW £1,900 (25kW model)
Greenstar Danesmoor System External (3 models) A Oil Yes 18kW/25kW/32kW £2,410 (25kW model)

For more information about boiler prices for a variety of brands, check out our boiler costs page.

The price of your boiler installation will depend on a number of factors, including the size of the property, the type of boiler being fitted, and your location.

For the installation of a new combi boiler that’s replacing an existing one, you can expect to pay about £600. If the current heating system is especially old it may require new parts, such as a mechanical flush, which can cost an extra £500, approximately.

If you want to change your style of boiler, out-of-date materials and equipment will need to be removed as a result.

This could include a hot water storage cylinder and cold water storage tank, among other things. If fresh plumbing is required, this will add to the overall cost, too. All of these factors could easily land you with a £1,500 bill.

A Worcester Bosch boiler

Since most companies offer free, no-obligation quotes, it makes sense to get around three valuations before committing yourself to an installer. You’ll then have the opportunity to take on board the advice provided by each engineer – and compare prices.

While combi boilers are usually simple to fit, installation costs will go up or down based on the size of the unit and whether or not any radiators need to be replaced.

The length of the flue (which safely vents gases) will need to be taken into account, too.

Labour costs will be greater if you need a water tank and/or hot water cylinder to be removed. For more information on what’s involved, refer to our combi boilers guide.

Many boiler brands allow customers to buy directly from them. Since this is not possible with Worcester Bosch, your engineer will act as a go-between. Accredited heating engineers are Gas Safe Registered, meaning they’ll meet all minimum safety standards.

Be sure to check that your engineer registers your new boiler with Worcester Bosch so that all aspects of the guarantee are in force immediately. This should happen as a matter of course.

Worcester Bosch boilers come with an excellent reputation. The company has a 4.7-star rating on Trustpilot, based on more than 14,000 reviews. 80% of customers on the review site have given Worcester Bosch a five-star rating.

Did You Know

Only 4% of customers regarded their dealings with the company to be ‘poor’ or ‘bad’

While Worcester Bosch is undoubtedly one of the best boiler manufacturers in the UK, there are a number of other companies that are certainly worthy of your attention, such as Viessmann, Vaillant, Baxi, Glow-worm, and Grant.

Read our reviews, and make your own mind up – or go straight to our best boilers page to see the current top models.

The Worcester Bosch brand certainly has a fine reputation for the reliability of its boilers, the lifespan of which can be anything from 15 to 18 years.

Even if something does go wrong, spare parts are usually very easy to source, and repairs are generally straightforward and inexpensive – or even free, if you get a warranty.

All Worcester Bosch boilers come with a minimum five-year guarantee, and many are provided with a seven-year guarantee.

When a boiler is installed by a Worcester-accredited engineer, customers are entitled to free extended cover, which typically lasts between seven and 10 years.

Worcester Bosch doesn’t sell directly to customers through its website, so you’ll either make the purchase through one of its qualified installers, or pretty much any reputable boiler installer in the UK.

Either will be able to advise you on the kind of boiler that’s best suited to your home.

Okay, you’re officially up to date on all the Worcester Bosch information you could possibly want.

Once you’ve figured out which type of boiler is the best for you and your family, it’s time to dig around for the best deals. Luckily, we can help with that. Simply pop your details on our short form to compare quotes from our local boiler installers.

Written by

An eco hero with a head for numbers, Jon’s data visualisation skills are legendary. Whether it’s determining what countries will survive climate change or the animals most at risk from it, he has the planet’s best interests at heart.

More about