Compare the highest-rated insulation professionals in Delaware, New Jersey. All contractors are licensed, insured, and verified through our rigorous screening process.
A leading energy efficiency and insulation contractor specializing in whole-home performance. They are well-known for their diagnostic approach, starting with energy audits to identify the root causes of comfort and efficiency issues. Their team is highly trained in advanced installation techniques and is very knowledgeable about available NJ rebates.
A full-service exterior and insulation company with a strong reputation in Hunterdon County. They offer a wide range of insulation services and are recognized for their professional crews and clean workmanship. They effectively handle both new construction projects and retrofit insulation upgrades for existing homes.
A specialized insulation contractor focused solely on insulation and air sealing services. This focus allows them to provide expert-level knowledge and efficient installation. They are a certified contractor for the NJ Home Performance with ENERGY STAR program, making them a go-to for homeowners seeking utility rebates.
** The insulation market in Hunterdon County, including Delaware Township, is robust and quality-focused. The average quality of service is high, with several established contractors holding advanced certifications like BPI (Building Performance Institute). Competition is strong, which benefits consumers through competitive pricing and a focus on customer service. The market is heavily influenced by state and utility incentives, making energy audits and comprehensive air sealing common first steps in insulation projects. Typical pricing can vary significantly based on the scope and material. A basic attic blown-in insulation job might start in the $1,500 - $3,000 range, while a full-home spray foam application can range from $8,000 to $20,000+. Most reputable contractors provide free, detailed estimates, and the potential for substantial rebates through the NJ Clean Energy Program often offsets a significant portion of the cost, improving the return on investment for homeowners.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Delaware regulations and climate
Get answers to common questions about insulation services in Delaware, New Jersey.
For our humid summers and cold winters, a combination of air sealing and high-performance insulation is key. Spray foam is excellent for creating an air barrier in attics and rim joists, while blown-in cellulose or fiberglass is very effective for insulating existing wall cavities. The Department of Energy recommends higher R-values (e.g., R-49 to R-60 for attics) for our climate zone (Zone 4A/5), which contractors in the region are familiar with.
Costs vary significantly by project size, material, and home age. For a typical attic insulation upgrade to R-49, homeowners can expect to pay between $1,500 and $3,500. Whole-house projects (attic, walls, basement) often range from $5,000 to $15,000+. It's important to get multiple quotes, as labor rates differ between North/South Jersey and Delaware. Always ensure the quote includes air sealing, which is critical for performance.
Yes, both states offer excellent programs. New Jersey homeowners should explore the "Home Performance with ENERGY STAR" program through participating utilities, which offers incentives and financing. In Delaware, the "Energize Delaware" program provides rebates and low-interest loans for energy efficiency upgrades. Additionally, the federal tax credit for insulation (up to $1,200 annually) applies in both states.
Insulation can be installed year-round, but fall is often ideal. Scheduling in late summer or early fall allows the upgrade to be completed before winter's cold sets in, maximizing immediate savings on heating bills. It also avoids the peak summer heat for attic work and the contractor's busiest season, which often starts in late fall. Avoid very rainy periods if your project involves exterior wall insulation.
Always verify the contractor is licensed and insured. In New Jersey, look for Home Improvement Contractor (HIC) registration. Seek out contractors who are certified by the Building Performance Institute (BPI) and who conduct a pre-installation energy audit using tools like a blower door test. Choose a provider experienced with the specific challenges of older homes common in our region, like those in Wilmington or Jersey Shore towns, which often have unique air leakage issues.