Insulation in Charleston, SC: we connect you with top-rated local insulation pros, checked by our team — their proposals come straight to your Homeshi account. Free for property owners.
Insulation in Charleston: July highs average about 91°F; January lows average about 39°F.
In Charleston County, July highs average about 91°F and January lows about 39°F, with roughly 50 inches of rain a year.
Over the last 10 years the National Weather Service recorded damaging thunderstorm winds, flash floods and hailstorms in Charleston County, with hail up to 1.75 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
Charleston County has had 22 federal disaster declarations in the last 25 years, most often for hurricanes; the latest was Severe Winter Storm (2026).
Roof repair in Charleston · AC & heating repair in Charleston · Plumbing in Charleston · Electrical in Charleston · Gutters in Charleston · Pest control in Charleston · Lawn care in Charleston · Pool service in Charleston · Siding in Charleston · Windows & doors in Charleston · Solar in Charleston · Generators in Charleston · Insulation in Charleston · Remodeling in Charleston · Kitchen remodeling in Charleston · Bathroom remodeling in Charleston · Painting in Charleston · Flooring in Charleston · Drywall in Charleston · Concrete & pavers in Charleston · Fencing in Charleston · Decks in Charleston · Tree service in Charleston · Pressure washing in Charleston · House cleaning in Charleston · Junk removal in Charleston · Garage doors in Charleston · Appliance repair in Charleston · Water & mold restoration in Charleston · Foundation repair in Charleston · Handyman in Charleston
Uneven rooms, high bills and an attic you can see the joists in are the signs; older homes often have far too little.
Attic insulation and air-sealing usually pay back fastest.
Mount Pleasant · James Island · Hanahan · North Charleston · Sullivan's Island · Folly Beach · Goose Creek · Isle of Palms