I have been charging £55 for conventional burner and £65 for premix boilers like yours.
But that's based on servicing during the summer months. I sometimes charge an extra £10 for those who insist on servicing during the winter and in any case its done as I can fit it in with repairs always having priority as I try to go to repairs on the same day when possible.
But with Vaillant premix boilers, every three years its recommended that the combustion chamber is opened which requires a new seal at about £22.
As well as checking the combustion conditions and the gas supply pressure I also repressurise the expansion vessel as that can cause F75 errors if its low.
Tony
But that's based on servicing during the summer months. I sometimes charge an extra £10 for those who insist on servicing during the winter and in any case its done as I can fit it in with repairs always having priority as I try to go to repairs on the same day when possible.
But with Vaillant premix boilers, every three years its recommended that the combustion chamber is opened which requires a new seal at about £22.
As well as checking the combustion conditions and the gas supply pressure I also repressurise the expansion vessel as that can cause F75 errors if its low.
Tony
