Combi boiler models and what they cost fitted
Combi boiler models differ by make and range. Here are the popular ones, what each costs fitted, and how the warranty and the price compare.
- Worcester Bosch Greenstar 4000The Greenstar 4000 is the middle of Worcester Bosch's combi range, and the one Boxt labels its most popular Worcester.from £2,100typically £2,700Worcester Bosch Greenstar 4000 combi, fitted
- Ideal Logic MaxThe Logic Max is an upper-middle Ideal combi range, with a long warranty when it is registered and a wide choice of outputs.from £2,200typically £2,800Ideal Logic Max combi, fitted
- Viessmann Vitodens 100-WThe Vitodens 100-W is Viessmann's main combi, built around a stainless steel heat exchanger.from £2,200typically £2,800Viessmann Vitodens 100-W combi, fitted
- Vaillant ecoTEC Plus combiThe ecoTEC Plus is the top of Vaillant's ecoTEC combi range, and the most expensive of the models we price.from £2,800typically £4,700Vaillant ecoTEC Plus combi, fitted
How to choose a combi boiler model
Brands sell several ranges at different prices. Entry ranges cost the least and come with shorter warranties, mid-range ranges are the usual choice, and premium ranges carry the longest warranties. Output matters as much as the make, so size the boiler to the number of bathrooms and radiators.
Every model page shows what it typically costs fitted, what moves the price and what a quote should include.
What to compare across combi boiler models
- The warranty. A long warranty usually needs the boiler to be registered, fitted by an approved installer and serviced every year. Ask which of those your quote covers.
- The output. A larger output costs a little more, but too small a boiler runs out of hot water when two taps are on. Ask for it to be sized to your home.
- Fitted, not boiler-only. Retail prices are for the boiler alone. Compare quotes that include the fitting, the flue, the filter and the old boiler removal.
- Other types. A combi is not right for every home. See boiler types for system, regular, electric and oil boilers.
Get quotes for your home
A guide price only takes you so far. Local firms can price the work on your own home, and comparing a few quotes is the quickest way to see what is reasonable.
Compare free quotesWorcester Bosch, Vaillant and Viessmann are trade marks of their respective owners. CombiBoiler.net is independent and is not affiliated with, sponsored or endorsed by any manufacturer. We name brands only to help you compare like with like; see how we make money.