Eliminate all external sources of water/moisture adjacent to/touching the house. Moist, dead wood (2x4's or window/door trims for example) can be a great attraction to these insects.
Inspect for internal water leaks in or near external walls. Showers/baths/kitchens are a very common source.
Fix any unwanted moisture problems and treat outside and inside with chemicals. Google is a big help for DYI specifics.
As others have suggested, seek professional help if unsure what to do.
By the way carpenter ants do not eat wood, they burrow pathways and build nest sites. Their habits can be just as destructive as wood-eating termites.
We know from personal experience….
Don
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Look both ways before crossing.
Western PA, Marietta GA, finally TV....
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