Quick answer: Spray foam insulation in Taylors costs $1.00–$1.60 per board foot for open-cell and $1.60–$2.60 per board foot for closed-cell. Full scopes are quoted from measured board feet after an on-site evaluation of thickness, access, prep, and existing insulation. Most jobs finish in one day. Final pricing depends on access, required thickness, and any removal of existing insulation.
Spray Foam Insulation in Taylors, South Carolina
Most insulation calls we get from Taylors start with the same two complaints: the floors stay cold all winter, and a musty smell shows up after a stretch of wet weather. Both usually trace back to the crawl space. The housing stock along the Wade Hampton Blvd (US-29) corridor northeast of Greenville is heavy on ranches and older one-and-a-half-story homes built over vented crawl spaces, with original insulation that has sagged, settled, or fallen out of the floor joists entirely.
Age alone is not the problem. Air movement is. Humid Upstate air comes in through the crawl space vents, rises through gaps in the floor, and exits through a leaky attic. Fiberglass batts do not stop that flow, and in many Taylors homes we inspect, the batts are hanging off the joists doing nothing at all. We install spray foam to seal the crawl space perimeter, the attic floor, and the rim joists so the house stops breathing outdoor air.
Why Taylors homes need spray foam
Greenville County sits in IECC Climate Zone 3A: hot, humid summers and enough winter cold to make an uninsulated floor miserable. That humidity punishes vented crawl spaces. All summer, warm wet air flows under the house and hits cooler surfaces like ductwork, joists, and subfloor. The moisture condenses, the wood stays damp, and the musty smell builds. Because air in a house moves upward, a share of what you breathe in the living room has already passed through the crawl space. That is why the odor shows up indoors and not just at the crawl space door.
Cold floors are the other half of the same problem. A vented crawl space in January sits close to outdoor temperature. If the floor above it leaks at the rim joist and around plumbing penetrations, and most older Taylors floors do, the rooms over the crawl space never warm up the way they should. Sealing and insulating the crawl space perimeter addresses the moisture source and the floor temperature in one job.
Attics still matter, and most Taylors attics need air sealing before they need more insulation. Decades of blown-in or batt insulation settle, get disturbed by wiring and HVAC work, and end up thin where it counts. Gaps around ceiling penetrations, top plates, and chases let conditioned air escape overhead all year. Stopping that leakage is where attic foam work pays off.
Our spray foam services in Taylors
Two foam types cover most Taylors jobs. Closed-cell spray foam provides about R-6 to R-7 per inch. Open-cell spray foam provides about R-3.5 to R-4 per inch. Closed-cell goes on crawl space walls and rim joists, where moisture resistance and a thin profile matter. Open-cell can make sense in attics where the framing depth allows enough thickness.
Crawl space spray foam
Crawl space work is the bulk of what we do in Taylors, because so many homes here were built with vents and exposed floors. A typical job off Wade Hampton starts with pulling out fallen fiberglass and debris so the foam can bond to clean surfaces. Then we spray closed-cell on the foundation walls and rim joist line and seal the vents, turning the crawl space into a buffered part of the house instead of an open-air space under your floors.
Homeowners notice two changes afterward. The musty smell fades because humid outside air is no longer washing through the crawl space and riding up into the house. And the floors hold heat better in winter because the space below them is no longer at outdoor temperature. If we find standing water, drainage trouble, or damaged wood, we flag it before any foam goes on. Foam seals surfaces, but it is not a fix for bulk water.
Attic spray foam
Attic work starts with finding where the air leaks. On many Taylors homes we seal the attic floor first: top plates, can lights, wiring and plumbing penetrations, and open chases. Then insulation goes over the sealed surface, which keeps the vented roof assembly intact and stops conditioned air from escaping overhead.
Where the ductwork and air handler sit in the attic, spraying foam at the roof deck can be the better call. A foamed roof deck brings the ducts inside the thermal envelope, which matters in an Upstate attic that runs brutally hot from May through September. Roof age, ventilation, and HVAC layout decide which approach fits, and we walk the attic before recommending either one.
Rim joist and foundation walls
Rim joists are a small area with an outsized leak. In older Taylors ranches, every joist bay along the foundation is a potential gap where the framing meets the block or poured wall. Closed-cell foam fills those bays, seals the wood-to-foundation joint, and delivers strong R-value in a few inches of space. Homes with additions or partial basements often have rim joist sections that were never insulated at all, and sealing them is a small job that closes a real leak.
What does spray foam cost in Taylors?
Spray foam is priced by the board foot, not by a flat project total. Open-cell spray foam typically runs $1.00-$1.60 per board foot. Closed-cell spray foam typically runs $1.60-$2.60 per board foot. What a job actually costs depends on foam thickness, surface condition, how much old insulation has to come out, and how tight the access is.
On Taylors jobs, crawl space clearance is usually the biggest variable. A three-foot crawl space with the old batts already removed prices differently than an eighteen-inch space full of debris. Attic work varies with square footage and with sealing the floor versus foaming the roof deck. We measure and quote after walking the house, not before.
One note on incentives: the federal 25C energy efficiency tax credit expired December 31, 2025, so no federal credit applies now. Duke Energy rebates for insulation and air sealing change from year to year, so confirm the current rebate details with Duke Energy before your estimate instead of counting on an older figure.
