When you drill a hole in the wall to put a cable through, for example, you might find that some sawdust, etc., needs to be cleaned up after drilling. If you are the Comcastical Installer you know that the customer can deal this mess when they are cleaning up the mulch from around the bushes that you tracked through the house.
Do you think that sealing that hole-in-the-house might use sealing along with cleaning up? Is our heating /cooling bill going up going down or even after your visit?
An extended, detailed version of this three-stooges cable installation is available upon request.
The picture above says it all though, doesn't it? Professionals do not leave it like that.
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