Compare the highest-rated insulation professionals in Wilmington, Delaware. All contractors are licensed, insured, and verified through our rigorous screening process.
A well-established, family-owned contractor specializing in high-performance insulation solutions. They are highly regarded for their expertise in spray foam and their commitment to improving home energy efficiency. They often work alongside other contractors but also serve homeowners directly for insulation-specific projects.
This provider focuses heavily on comprehensive home energy upgrades. They are a top choice for homeowners looking for a full-service audit and retrofit, combining air sealing and advanced insulation techniques to maximize savings and comfort.
A dedicated insulation contractor known for reliable service and a wide range of insulation types. They handle both residential and commercial projects, from new construction to retrofits, and are proficient in all major insulation materials.
** The insulation market in Wilmington, DE, is characterized by a mix of specialized insulation contractors and broader home performance companies. Due to the city's abundance of older, historic homes, there is a strong demand for insulation upgrades, air sealing, and energy audits. The market is moderately competitive, with a handful of highly-rated, established providers dominating the reputation space. **Average Quality:** The top-tier contractors are of very high quality, often holding certifications like BPI (Building Performance Institute) and being partners with the ENERGY STAR® program. They are well-versed in local building codes and available rebates from utility companies like Delmarva Power. **Competition Level:** Moderate. While there are numerous handymen and general contractors who offer insulation, the field of dedicated, highly-reputable insulation specialists is more concentrated, allowing the top companies to maintain strong visibility. **Typical Pricing:** Costs vary significantly based on the project and material. As a general guide: * **Blown-In Attic Insulation:** $1,500 - $3,500 * **Spray Foam (Closed Cell):** $1.50 - $3.00 per board foot (highly effective but premium cost) * **Whole-House Air Sealing & Insulation Upgrade:** $4,000 - $8,000+ Many providers offer free estimates, and investing in these services often qualifies homeowners for significant rebates and long-term energy savings.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Wilmington regulations and climate
Get answers to common questions about insulation services in Wilmington, Delaware.
For existing homes in Wilmington's Climate Zone 4, the U.S. Department of Energy recommends an attic insulation R-value of R49 to R60. This high recommendation is due to our humid continental climate, with cold winters and hot, humid summers. Properly achieving this R-value, often with blown-in cellulose or fiberglass, is critical for year-round energy efficiency, keeping heating costs down in winter and reducing AC strain in summer.
Yes, Delaware's Energize Delaware program, often administered through the Sustainable Energy Utility (SEU), periodically offers rebates for insulation upgrades that improve home energy performance. Additionally, participating in a Home Performance with ENERGY STAR assessment through a certified local contractor can unlock specific incentives and help you qualify for federal tax credits for eligible insulation materials.
While insulation can be installed year-round, the ideal times are late spring (April-May) and early fall (September-October). These periods typically offer mild, dry weather in Wilmington, which is important for projects like attic work where extreme summer heat or winter cold can be hazardous for installers and affect material application. Scheduling during these shoulder seasons also ensures your home is optimized before peak heating and cooling seasons.
Always verify that a contractor is licensed and insured to work in Delaware. Look for local companies with strong experience in our climate and ask for references from past Wilmington-area projects. A reputable provider should offer a detailed, in-home assessment and clearly explain their recommended materials (like spray foam for basement rim joists or blown-in for attics) and the expected energy savings specific to your home's construction.
In Delaware's historic homes, the attic is almost always the top priority, as heat rises and escapes there most readily. After the attic, sealing and insulating the basement rim joist (where the foundation meets the wood frame) is crucial, as this is a major source of cold drafts in winter. A professional energy audit can use a blower door test to pinpoint your home's specific air leaks, which is highly recommended before a major insulation investment.