How Much Does It Cost To Replace a Thermocouple?



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Cost to Replace a Thermocouple


job

Description
Labour
1 Replace a thermocouple (including the part)
        £75


“Labour” at £175 a day (tradesman) £100 (labourer), includes incidental fixings etc. and tipping charges. “Materials” if mentioned, are larger things (a boiler) and stuff only you can choose (tiles etc).  Also VAT must be added all round.

Information on thermocouples


A thermocouple tells the boiler if the pilot light blows out. If it does, the boiler then shuts off the gas supply to the pilot light, thus preventing what would be in effect a gas leak. The first you know about this is when your boiler isn’t firing because the pilot light has blown out! So, you light it again and all is well.

A problem arises when the thermocouple itself eventually “goes”. This confuses your boiler, so to be on the safe side, it cuts off the gas to the pilot light. Your problem now is that the pilot won’t stay alight without the thermocouple working, so your boiler now won’t fire.

Thermocouples are also found in boilers without pilot lights. Here they monitor temperature in just the same way and when they “go” the boiler stops.

Luckily, they are cheap to buy, easy to fit and largely interchangeable, so if he has the right one with him, a plumber will take less than half an hour to fit it.


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