Compare the highest-rated insulation professionals in RTP, North Carolina. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly-rated, locally-owned contractor specializing in comprehensive home performance upgrades. They are known for their expertise in air sealing and advanced insulation techniques to maximize home comfort and energy savings. They often work with utility rebate programs.
A long-standing and highly respected name in the North Carolina energy efficiency sector. SEM is a B-Corp certified company known for its rigorous approach to home performance, building science expertise, and high-quality installation standards. They are a go-to for homeowners seeking top-tier energy audits and solutions.
A reliable and professional contractor focused on both residential and commercial insulation. They offer a wide array of insulation types and are particularly noted for their work in crawl spaces and attics, helping to create a full thermal and moisture barrier for the home.
** The insulation market in the RTP/Triangle area is mature and highly competitive, characterized by a high standard of quality. Due to North Carolina's mixed-humid climate, with hot, humid summers and moderately cold winters, the demand for comprehensive air sealing and proper insulation is significant to manage both cooling and heating costs. * **Average Quality:** The bar for quality is high, with leading contractors like those listed above being well-versed in building science principles. They focus on creating a fully sealed building envelope rather than just adding insulation material. * **Competition Level:** The market is competitive with several established, reputable companies and many smaller operators. The top-tier companies differentiate themselves through certifications (like BPI and RESNET), their ability to navigate local utility rebates (from Duke Energy), and their use of advanced diagnostic tools like blower door tests and thermal imaging. * **Typical Pricing:** Pricing is mid-to-high range, reflecting the expertise and quality of materials used. A standard attic blow-in insulation job might range from $1,500 - $3,500, while a full home spray foam application can be a significant investment of $10,000+. Most reputable companies provide free, detailed quotes that include a projected return on investment through energy savings. These three providers represent the top tier of insulation and home performance contractors actively serving homeowners in the RTP, North Carolina area.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with RTP regulations and climate
Get answers to common questions about insulation services in RTP, North Carolina.
For our mixed-humid climate (Climate Zone 4), a combination of air sealing and high-performance insulation is key. We typically recommend spray foam for attics and crawl spaces as it provides both an air barrier and high R-value, combating humidity infiltration. For existing wall cavities, dense-pack cellulose is an excellent choice as it settles well and resists moisture better than fiberglass batts in our local conditions.
For a standard 1,500 sq ft attic, adding blown-in cellulose or fiberglass insulation to achieve R-38 (the recommended minimum here) typically ranges from $1,500 to $2,500. Locally, Duke Energy Progress offers rebates for adding attic insulation, and North Carolina's energy-efficient property tax exclusion can also provide savings. Always ask your contractor about current local utility incentives.
The ideal times are late spring (April-May) and early fall (September-October). These periods avoid the extreme heat and humidity of summer, which can make attic work unbearable and affect some insulation materials, and the potential for winter condensation issues. Scheduling during these shoulder seasons also ensures better contractor availability before the peak heating and cooling seasons hit.
First, verify they are licensed by the NC Licensing Board for General Contractors if the job exceeds $30,000, but always check for proper insurance and local references. Look for contractors experienced with our specific climate challenges, such as managing crawl space moisture. It's also wise to choose a provider who performs a pre-installation energy audit to identify air leaks, which are a major issue in our older Triangle-area homes.
Not necessarily. The first and most cost-effective step in our climate is a comprehensive air sealing audit, focusing on the attic, crawl space, and around penetrations like ducts and wiring. Due to our significant temperature swings and wind, air leakage is often the primary culprit for discomfort and high energy bills. A professional can then determine if additional wall insulation (like dense-pack cellulose) is needed after sealing these leaks.