Basement feels cold, clammy or smells musty? We sort out the dampness first, then insulate the walls so the room usually runs warmer and drier.
Basement insulation in North Charleston means lining the foundation walls, usually with foam board or spray foam, once any dampness in them has been found and dealt with, so the room downstairs is warmer and easier to use.
Most of the basement calls I get start the same way, with a lower level that's cold underfoot in winter, clammy in summer or a little musty, and you'd like to use the room without that. The price mostly follows your wall area, the material that suits your walls and how much has to come off first, like old paneling or wet insulation, while the schedule turns on whether there's dampness to deal with before anything goes up. I write the estimate out step by step, so you'll see what goes where for your own basement. If your house sits over a crawl space instead, our crawl space insulation work is the closer fit.
I come out to every job, check the walls for damp, staining and smell, and write the estimate myself. Our installers then do the work with me or a lead installer on site, so there's someone in your basement who knows the plan and why each step comes where it does.
I spent years as an HVAC service tech before starting this business in 2023, and that work kept showing me the same thing. Insulation over a leak or a damp spot only hides the problem, so I'd rather tell you a job can wait than sell you work your house won't use.
South Carolina requires a current state license or registration for residential building and specialty contracting work, so it's fair to ask any contractor about theirs. We're licensed and fully insured. When you're ready to have your basement looked at, call (843) 278-0240 or use the form to set up a visit.
Call or send the form and we'll reply within one business day to set a time. I come out, look at your walls for dampness first, and write you a free on-site estimate that lays out each step. There's no pressure and no obligation.
In North Charleston, the city's Building Department issues building permits and inspects renovations and residential projects, and whether your basement job needs one comes down to what that office asks for. The city also spreads across Charleston, Berkeley and Dorchester Counties, so before we start, we find out which office covers your address, check what it asks for and take care of any permit your job needs.
Where the state's residential code rates termite risk as "very heavy," foam plastic insulation can't go on the outside of foundation walls or slabs below ground, or under them, but the inside of a basement wall is exempt. In those areas, foam belongs on the inside face of the wall, which is the side we insulate. Most of the basements we're called to are in older houses, often a lower level that's only partly finished, and we do the same work across the cities around us, from Summerville to Goose Creek. If your city isn't on our list, call and ask.
Insulating basement walls usually costs about $4.40 to $6.40 per square foot across the US, which is a national figure for the wall work, not a North Charleston measurement or our price. Spray foam tends to sit higher than board, and anything that has to come off the wall first adds to it. Your own figure comes from the estimate, written out step by step.
Closed-cell spray foam is usually the first one to price, because federal energy guidance ranks it best at controlling moisture of all the insulation used on the inside of foundation walls. Open-cell foam has to go on thicker to protect against vapor, so it's the weaker pick for a wall that sees damp.
No, federal guidance says fiberglass batts and cellulose should stay out of contact with foundation walls, so a plan that puts them against the concrete is one I'd question. If you're finishing the room, the usual answer is foam on the concrete and any fiber only in a framed wall in front of it. Plastic sheeting, rubber membranes and foil facings should stay off the room side of fiber insulation too, since they can trap moisture in the wall, so ask any contractor what layer goes over the insulation before the drywall.
Cooler basement air generally runs at higher humidity, and that is what usually leads to mold and the musty smell. Insulated walls usually keep the room warmer, and so drier, during humid summer weather. If the smell comes with wet spots on the concrete, tell me when you call so I look for that first.
Measure the basement wall area in square feet if you can, and jot down any damp spots, staining or smells and when you notice them. Clear a path to the walls so I can see the concrete, and have your notes handy when you call (843) 278-0240 or send the form.
