Cold floors in January and a musty smell by June usually trace back to the same place. Crawl space insulation in Cumming, GA, slows heat loss through the floor system and cuts down on the damp air working its way up into the house. Anthem Insulation & Home has been doing this work in Forsyth County for more than ten years, and crawl spaces are one of the most common reasons homeowners call about our insulation services in Cumming, GA.
Most crawl spaces we open up around Cumming still have the original faced fiberglass batts, held up by a few staples and friction. North Georgia summers run humid for months, and that moisture works into the paper facing and the fiberglass itself. Wet batts lose most of their R-value and get heavy enough to pull free – the same failure pattern shows up in an under-insulated Cumming attic when humidity gets into blown fiberglass. Once a section drops, the floor above goes cold and the exposed subfloor starts collecting condensation.
Rodents account for a good share of the rest. Gaps around foundation vents, dryer lines, and plumbing penetrations give them a way in, and loose fiberglass makes easy nesting material. Contaminated insulation has to come out rather than get covered over.
Every job starts with a free home energy audit, so you know what’s actually going on under the floor before anyone quotes a price.
Unfaced fiberglass batts still make sense in a dry, well-vented crawl space, and they’re the least expensive route. Held with support wire or strapping across the full joist span, they hold position far longer than the stapled-up faced version most builders installed. We work with insulation materials from Thermafiber, Knauf, and Roxul.
Mineral wool costs more and doesn’t absorb water the way fiberglass does, which matters in a crawl space that runs damp year after year. Closed-cell spray foam seals air leakage and acts as its own vapor retarder, and it’s what we recommend most often where moisture has already caused a failure. Georgia’s energy code sets a minimum of R-19 for framed floors in this climate zone. Fiberglass takes roughly six inches of depth to reach that number, while closed-cell foam gets there in about three, which matters when joist depth is limited.
There are two approaches, and the right one depends on the crawl space. Insulating between the floor joists keeps the crawl space vented to outside air and is the more familiar method. Insulating the foundation walls instead brings the crawl space inside the building envelope, which suits homes where humidity has been a recurring problem.
Forsyth County’s clay soil holds water after heavy rain, and on a lot with poor drainage the sealed approach usually holds up better. We’ll tell you which one your house calls for during the audit rather than defaulting to one or the other.
Old material comes out first. Adding over failed insulation traps whatever moisture and contamination is already sitting there. Once it’s clear, we air seal the rim joists and penetrations, since those gaps move more air than insulation alone will ever offset. New batts get supported across the full span with no compression against ductwork or plumbing lines. Spray foam goes on in lifts at the right thickness so it cures the way it should.
New customers get 10% off insulation services. Veterans and first responders get 10% off as well. Crawl space pricing swings with square footage, access, and how much failed material has to be hauled out, which is why the audit comes before the number. Financing is available if you’d rather spread the cost across a few years.
Treating your home like our own is the standard we hold crews to, and in a crawl space that mostly means doing the work nobody will ever see the same way we’d do it in a living room.
Call Anthem Insulation & Home for a free home energy audit. We’re the insulation company in Woodstock, GA homeowners call when their floors won’t stay warm.
Call us at 770-354-5005 today or click the button below to schedule our trusted crawl space services in Cumming, GA.
Megan Naputano
Sawyer and his team did an exceptional job with our blown insulation project. Our project was unique as the team had no access to the attic and had to work through speaker holes and can light holes. The team was respectful of all of our belongings, laying down tarps and plastic. The team was patient and happy to work with all my pickiness and oversight. Definitely recommend Anthem Insulation for your home or business.
I had a great experience working with them. The price they quoted was lower than I was expecting. They were not pushy, even though it took me 3 months to get around to scheduling the work after the estimate. The spray insulation work was high quality, and looks great.
I was unexpectedly not able to be home when they showed up to do the work so I left the door unlocked and the check on the counter. They were super professional, and took care of everything without me needing to be there. Couldn’t ask for anything more, I’d definitely recommend this place.
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Based in Woodstock, we provide expert insulation services to homeowners throughout the surrounding area. Our team is committed to delivering reliable, high-quality solutions wherever you need us.
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