Worcester Bosch installers · Gas Safe registered
Get a fixed-price quote for a new Worcester Bosch boiler online, choose your installation date and have a Gas Safe registered engineer fit it. Greenstar 4000 combi packages start from around £2,450 fitted, with combi, system and regular Greenstar models available.
Replacing your boiler with Worcester Bosch
Worcester Bosch boilers are built in Worcester, and the company is part of the Bosch Group. It is one of the most familiar names in UK boiler cupboards, and often the first make homeowners ask for when an old boiler gives up.
We install the Greenstar range as straight replacements and as conversions. A like-for-like combi swap is usually done in a day. Switching from a tank-fed system to a combi, or fitting a Greenstar system boiler with a new cylinder, takes a little longer. Either way, the price you accept online is the price you pay.
Not sure which Greenstar suits you? The online quote asks about your home, bathrooms and hot water use, then shows the Worcester Bosch boilers that fit, alongside other leading brands for comparison.
The Greenstar name covers everything from compact combis to high-output boilers for large homes. These are the models we fit most often.
| Model | Type | Best for |
|---|---|---|
| Greenstar 2000 | Combi | Smaller homes and flats where the boiler sits in a kitchen cupboard |
| Greenstar 4000 | Combi or system | Most two- and three-bedroom homes; our most popular Worcester Bosch package |
| Greenstar 8000 Life | Combi or system | Larger homes with higher hot water demand |
| Greenstar 8000 Style | Combi or system | The same output as the 8000 Life, with a glass front for boilers on show |
| Greenstar Ri | Regular | Homes keeping a cylinder and loft tanks |
Outputs and availability depend on your home, so your online quote only shows the Worcester Bosch models that suit it.
A Worcester Bosch Greenstar 4000 combi package starts from around £2,450 fitted. The final price depends on the model and output you choose, whether the boiler stays in the same place, and any conversion work, such as removing a cylinder and loft tanks or replacing a back boiler.
Every quote is fixed, so nothing is added after the survey. You can also spread the cost: as an example, a £1,799 boiler over 10 years at 9.9% APR works out at £23.26 a month, subject to status.
The Greenstar 2000 is compact enough to sit inside a standard kitchen cupboard, which makes it a tidy choice where space is tight.
If two showers often run at once, a Greenstar 8000 Life combi or a Greenstar system boiler with an unvented cylinder will keep up better than a smaller combi.
Homes that want to keep stored hot water, or have low mains pressure, can stay on a Greenstar Ri regular boiler or move to a Greenstar system boiler.
Greenstar 4000 combi packages start from around £2,450 fitted. Larger models, system boilers and conversions cost more, and your online quote shows the fixed price for your home.
For most two- and three-bedroom homes, the Greenstar 4000 is a good balance of size and output. Smaller homes often suit the Greenstar 2000, while bigger homes with more bathrooms are better served by the Greenstar 8000 Life or a system boiler.
Yes. We replace any make of boiler with a new Worcester Bosch, whether that is a straight combi swap, a conversion from a tank-fed system or a back boiler replacement.
Most like-for-like combi swaps are done in a day. Conversions and boiler moves usually take one to two days.
Answer a few questions about your home, compare fixed-price Worcester Bosch boilers and book the installation date that suits you – all online, in a few minutes.