Compare the highest-rated insulation professionals in Union, South Carolina. All contractors are licensed, insured, and verified through our rigorous screening process.
A leading provider in the Upstate region, part of a national brand known for its comprehensive approach. They specialize in evaluating home efficiency and providing solutions using blown-in insulation, spray foam, and batt insulation. They strongly emphasize air sealing and offer free energy assessments.
A family-owned and operated business with a strong reputation for professionalism and quality workmanship across the Carolinas. They offer a full suite of insulation services, including removal and replacement, and are experts in insulating hard-to-reach areas like crawl spaces and basements.
A local company focused specifically on improving home energy efficiency. They are known for their detailed energy audits and their expertise in leveraging spray foam and cellulose insulation to create tight building envelopes and reduce utility bills.
The insulation market in and around Union, SC, is characterized by a reliance on regional contractors from larger neighboring hubs like Spartanburg and Greer. Due to Union's smaller population, there are few, if any, dedicated insulation contractors physically based within the city limits. The competition level is moderate, with several established, reputable companies vying for projects in the broader Upstate region. These providers are generally of high quality, with many holding certifications from manufacturers like Owens Corning and Icynene. Typical pricing is competitive with national averages; for example, attic blown-in cellulose can range from $1,500 - $2,500, while spray foam projects typically start at $2,500 and can exceed $5,000 for whole-home applications. Homeowners are increasingly aware of energy efficiency, and providers are knowledgeable about South Carolina building codes and potential rebates from local utilities like Duke Energy.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Union regulations and climate
Get answers to common questions about insulation services in Union, South Carolina.
For our humid subtropical climate with hot summers and mild winters, a combination of air sealing and high-quality insulation is key. In attics, we typically recommend blown-in fiberglass or cellulose to achieve an R-value of R-38 to R-60, which is the DOE's recommended level for our zone. For walls, spray foam or dense-pack cellulose is excellent for creating an air barrier that combats humidity while providing stable thermal resistance (R-13 to R-15 for walls).
Costs vary based on home size, material, and existing conditions, but for a standard 1,500 sq. ft. home in Union, attic insulation can range from $1,500 to $3,500. Wall insulation projects are more variable. Regional material costs and labor rates in the Upstate are generally moderate, but the long-term energy savings, especially given Duke Energy's rates, provide a strong return on investment. Always get itemized estimates from local contractors.
While South Carolina has no statewide energy code for existing homes, new construction follows the 2018 IRC. The most valuable incentives are utility rebates. Duke Energy South Carolina often offers rebates for attic insulation upgrades. Additionally, you may qualify for federal tax credits for certain insulation materials under the Inflation Reduction Act. It's best to check Duke Energy's website and consult with your local installer for the latest programs.
Insulation can be installed year-round, but the ideal times are late fall and early spring. These periods offer milder temperatures in Union, making it more comfortable for workers to seal your attic thoroughly before the intense summer heat arrives. Scheduling during these shoulder seasons can also be easier, as contractors are less booked than during the peak summer or winter emergency periods.
Always verify the contractor is licensed and insured in South Carolina. Look for established local companies with strong references in Union County or the surrounding Upstate area. They should provide a detailed, in-home assessment—not a phone quote—and explain how they will address our specific humidity and air sealing challenges. Membership in local associations like the Home Builders Association of South Carolina can also be a good indicator of professionalism.