A new combi boiler costs £1,500–£3,500 for the unit, plus £500–£2,000 for installation. Total cost depends on brand, complexity, and location. See our best combi boilers guide.

If your boiler is over 10 years old, frequently breaks down, or has rising repair costs, it’s likely time to replace. Check our when to replace guide.

Yes — many providers offer 0% finance, monthly payment plans, or boiler subscriptions. See our boiler finance guide for options.