When should you replace your boiler? The 6 signs to know

A well-maintained boiler lasts a long time, but not forever. Beyond a certain age, repairing costs more than replacing. Here is how to tell where you stand.

The 6 warning signs

1. It is over 15 years old. That is roughly the lifespan of a wall-hung boiler; beyond it, efficiency and reliability decline.
2. Breakdowns keep coming. Two or three repairs in one season are rarely a coincidence.
3. Parts are impossible to find or very expensive because the model is no longer made.
4. Your consumption is rising although your habits have not changed.
5. Hot water is unstable or some radiators heat poorly despite bleeding.
6. You see corrosion or traces of leaks under the appliance.

Repair or replace?

A simple rule of thumb: if the repair costs a significant share of the price of a new appliance and the boiler is already over 12 to 15 years old, replacement is usually the better choice. For a more recent boiler, a repair with original parts remains the logical solution.

What a gas condensing boiler brings

A condensing boiler recovers the heat contained in the flue gases, which older models sent up the chimney. The result:

• better efficiency, so lower gas consumption than an old atmospheric boiler;
• quieter operation and a more stable temperature;
• modern controls (modulating thermostat, outdoor sensor, remote control).

Which output and which model?

The output depends on the floor area and insulation of the home, but also on your hot water needs: number of bathrooms, showers used at the same time. An oversized boiler keeps switching on and off and wears out faster; an undersized one cannot keep up in winter. That is why our form asks for the number of bedrooms, shower rooms and floors. We install the major brands: Vaillant, Bulex, Viessmann, Bosch, Remeha…

How does a boiler replacement work?

1. You fill in the form with the layout of your home, then send us a photo of the current location by WhatsApp or email.
2. We prepare a personalised quote within 24 hours.
3. Free technical visit if necessary, to check the flue, the condensate drain and the connections.
4. Installation and commissioning by our technicians, usually in one day, with the compliance file handed over.

The right time to do it

Do not wait for the January breakdown. Replacing your boiler in spring or summer lets you choose calmly, without going without heating and without peak-season waiting times.