My walls don't have insulation. Is there a method where I can spray insulation behind the drywall without having to take down all the drywall?
... but somehow you have to generate access. Either smaller holes to have someone spray in foam, or larger ones to pump in dense-packed cellulose. You'll likely need a few to several holes per stud cavity so you can get around wires, vent pipes, etc. Call spray-in places to get details. Good luck. j
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