The Mirion blog
Boiler Repair vs Replace: How to Make the Right Call
When your boiler breaks down, should you repair it or invest in a new one? A practical guide with real cost comparisons and honest advice.
The honest answer depends on your boiler
There is no universal rule. But there are clear signs that point one way or the other.
When a repair makes sense
Your boiler is under 8 years old and regularly serviced. The fault is a known, fixable issue. The repair cost is under £400.
When replacement is better value
Your boiler is over 10 years old. You face frequent breakdowns. Repair costs are approaching £1,000+. Parts are discontinued.
What does a new boiler cost?
A new boiler installation typically costs £2,500 to £4,500. A new A-rated boiler can save £300 to £500 per year on energy bills.
Our approach
We give honest advice. If a repair makes sense, we will tell you. If replacement is better value, we will explain why — with real numbers, not pressure.