Signs you need a new boiler

Boilers rarely fail overnight. They usually give warning signs first. Spotting them early lets you plan a replacement rather than face a cold, sudden breakdown.

The main warning signs

• Age. Most boilers last 10 to 15 years. Past 10 years they get less efficient and more likely to fail.
• Rising energy bills. An old boiler running at 70 to 80 percent efficiency wastes money compared with a modern A-rated boiler at over 90 percent.
• Frequent breakdowns. If you are calling an engineer more than once a year, the repairs add up fast.
• Strange noises. Banging, gurgling or whistling can point to a failing pump, limescale or air in the system.
• Losing pressure. Having to top up the pressure often suggests a leak or a failing part.
• A yellow flame. The flame should be crisp and blue. A yellow or lazy flame can indicate a serious problem and should be checked straight away.
• Leaks or drips. Any water around the boiler needs attention, as it can cause damage and corrosion.
• Slow or uneven heating. Radiators that take a long time to warm up, or never get properly hot, can signal a tired system.

Repair or replace?

A single repair on a boiler under about eight years old is usually worth it. Lean towards replacing when:

• The boiler is over 10 years old
• It breaks down repeatedly
• A repair costs a large share of a new boiler
• Parts are hard to get for an older model
• Your bills are climbing because it is inefficient

A new A-rated boiler can cut your heating costs and comes with a long warranty, so it often pays for itself over time.

Not sure? Get an honest view

If your boiler is showing these signs, tell us what is happening and we will give you a fixed price for a replacement, with no pressure. If a repair is the smarter option, we will say so.