Worcester Bosch is clear on its own support pages: a yearly service by a Gas Safe engineer is a condition of the guarantee. Miss the year and you can give the manufacturer a reason to decline a call-out that would otherwise have been free.
That is the sentence most Greenstar owners in Marlow need before winter. It is not a Worcester sales pitch. It is how almost every gas-boiler guarantee works, including theirs.
A service is a safety and efficiency check: combustion, flue, seals, pressure, condensate, and whether the boiler is still safe to use. It is not a polish. Worcester also sell their own in-guarantee service. You do not have to use them. You do have to use someone on the Gas Safe Register. We can do that visit on boilers we fitted and on boilers we did not.
We will not quote Worcester’s national menu price as if it were ours. Ask for a figure for your appliance. Bring the last service sheet if you have it, or the serial number on the data plate.
If the last stamp is more than twelve months old, book before the cold weather. 01628 901902.