I live in Kamphaeng Phet province Aumpher Phran Kratai.

As my wife has developed Parkinsons and I have spinal problems I am looking for a service that can visit our house a couple of times a month to do a thorough cleaning. The house is quite large so may require two days at a time depending on the size of the crew.

Anyone know of such a service in this area?

No idea of such service exists sorry, but what we do is have the Neighbors wife clean the house 1-2 days a week, maybe that is an option ?

As said it is unlikely such a firm would operate outside of foreign or large city areas. Such access requires some trust and it is not likely most would provide that to an unknown cleaning service. Most people would find a relative or neighbor wanting to earn something - or it might be a maid for someone else on there off-day.