"Since 1948"
Bonham Insulating Company has proudly served homeowners and businesses in and around Spartanburg for more than 70 years.
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A comfortable home shouldn't depend on the season. Bonham Insulating brings more than 75 years of Upstate experience to property owners in Greenwood County, helping homes and commercial buildings hold steady indoor temperatures through hot summers, chilly winters, and everything in between. As insulation contractors serving Greenwood County, SC, we focus on careful evaluations, professional installation, and solutions that fit each building.
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Much of our work in Greenwood County involves homes that are already standing. Many were built before current energy codes, and even newer houses can lose performance as insulation settles, gets disturbed by other trades, or is damaged by moisture or pests. An insulation upgrade restores what's been lost and fills in what was never there.
An upgrade may be worth considering when:
We also insulate renovation projects, such as additions, kitchen and bath remodels, and finished attics or bonus rooms, while walls and ceilings are open. For new construction, we work with builders and homeowners to install code-compliant insulation that's done right before the drywall goes up.
Most insulation upgrades start in the attic. We assess the depth and condition of what's there, then add insulation or remove and replace damaged material to bring your attic up to recommended levels.
Properly insulated walls help keep rooms closer to the thermostat setting and reduce drafts along exterior walls. We install wall insulation in new construction, additions, and remodels.
Insulation under floors over crawl spaces, garages, and porches helps eliminate cold floors in winter and keeps the lower level more comfortable year-round.
We replace sagging or wet insulation and install moisture barriers to help keep crawl spaces drier and protect the home above.
We install blown-in fiberglass for attics and enclosed spaces and batt fiberglass for open walls, floors, and standard framing. Each is matched to the area being insulated.
Before adding insulation, we seal the gaps and penetrations that let outside air in and conditioned air out, so the new insulation can do its job.
We insulate offices, medical practices, retail spaces, schools, and other commercial buildings in Greenwood County, for both new construction and upgrades to existing facilities.
Greenwood County homes deal with a little of everything: long, humid summers, cold snaps in winter, and spring and fall days that can swing from cool mornings to warm afternoons. Insulation slows the movement of heat through your attic, walls, and floors. In summer, it helps keep attic heat from reaching your living space. In winter, it helps hold heat inside. When temperatures change quickly, a well-insulated home changes with them more slowly, which makes it easier to stay comfortable.
Crawl spaces need special attention. Warm, humid air can collect under the home and condense on cooler surfaces, and insulation that gets damp can sag, fall, and lose effectiveness. In homes near Lake Greenwood or on low, wet lots, these issues can be more noticeable.
Insulation and moisture control are not the same thing. Insulation manages heat. Moisture-control measures, such as vapor barriers on the crawl space floor, proper ventilation, and fixing drainage problems, manage water and humidity. Insulation installed in a crawl space with an unresolved moisture problem won't last. That's why we evaluate both, install moisture barriers where needed, and recommend other specialists when the issue is something like grading or plumbing that falls outside insulation work.
Bonham Insulating serves homeowners and businesses in communities across Greenwood County, including:
Some communities cross county lines. Ware Shoals, for example, spans parts of Greenwood, Laurens, and Abbeville counties, and the Lake Greenwood area reaches into Laurens and Newberry counties. If you're near a county boundary, call 864-585-5361 and we'll confirm service for your address.
Look for rooms that are hard to heat or cool, cold floors, drafts, an HVAC system that runs often, or higher utility bills than similar homes. In the attic, insulation that sits level with or below the tops of the floor joists usually means there isn't enough. A Bonham consultation will measure your current insulation and show you where it falls short.
In many cases, yes. Older homes often have attic insulation that has settled or was installed to much lower standards than today's recommendations. Upgrading the attic and sealing air leaks is typically one of the most practical improvements for comfort. We'll check the condition of what's there and tell you honestly whether an upgrade is worth it for your home.
It depends on the crawl space. In many homes, fiberglass batts installed snugly between floor joists, combined with a moisture barrier on the ground, are an effective approach. If there's existing moisture damage, the wet insulation should be removed first. We'll evaluate your crawl space conditions before recommending a solution.
Yes. Gaps in attic, wall, and floor insulation, along with air leaks, are common reasons some rooms run warmer or cooler than others. Filling those gaps helps your home hold temperature more evenly. If ductwork or HVAC sizing is also a factor, we'll let you know.
Yes. Renovations are an ideal time to insulate because walls, ceilings, and floors are already open. We insulate additions, remodels, finished attics, and bonus rooms, and we coordinate with your contractor's schedule.
Whether you own a historic home in Uptown Greenwood, a lake house, or a commercial building in town, a free consultation is the easiest way to find out what your property needs. We'll inspect your attic, walls, floors, and crawl space, explain what we find, and give you a clear recommendation with no obligation. Call 864-585-5361 or request your Greenwood County consultation today.