Compare the highest-rated insulation professionals in Wilmington, California. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly specialized contractor focusing exclusively on attic and insulation services. They are renowned for their comprehensive approach, combining insulation installation with rigorous air sealing to maximize home energy efficiency. They are often recommended for their knowledge of local rebate programs.
USI is a national company with a strong local branch, offering a wide range of insulation solutions. Their corporate backing provides access to extensive training, materials, and warranties. They are a strong choice for all types of insulation projects, including spray foam and crawl space insulation.
A locally-owned and operated company that emphasizes eco-friendly and health-conscious insulation solutions. They excel at whole-home energy upgrades and are particularly skilled at addressing the specific ventilation and moisture control needs of older homes in the region.
The insulation market in Wilmington, CA, is characterized by a mix of older housing stock and industrial influences, creating a strong demand for energy efficiency upgrades. Due to its size, Wilmington itself hosts few dedicated insulation contractors, making the market reliant on reputable providers from neighboring South Bay cities like Carson, Long Beach, and Compton. **Average Quality & Competition:** The competition is moderate but features high-quality, specialized contractors. The top-tier providers distinguish themselves through certifications (like BPI), knowledge of California Title 24 energy codes, and a focus on comprehensive air sealing alongside insulation. **Typical Pricing:** Pricing is in line with the greater Los Angeles area, which is on the higher end nationally. Factors influencing cost include home size, insulation material (spray foam being the most premium), and the scope of prep work like removal. * **Blown-In Attic Insulation:** $1,500 - $4,500 * **Wall Insulation (Blown-In):** $2,000 - $6,000 * **Spray Foam Insulation (Attic):** $4,500 - $10,000+ Homeowners are advised to seek multiple quotes and inquire about available rebates from programs like Energy Upgrade California or through local utility providers, which can significantly offset project costs. All reputable contractors should provide a detailed quote that separates material, labor, and any preparatory work.
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, California.
For Wilmington's mild coastal climate, blown-in fiberglass or cellulose in attics is often the most cost-effective upgrade, typically ranging from $1.50 to $3.50 per square foot installed. For new construction or major renovations, batt insulation is also competitively priced. Final costs depend on your home's size, accessibility, and the existing insulation's condition, but many Wilmington homeowners see a strong return on investment through reduced cooling costs during our warmer inland-influenced summers.
While insulation can be installed year-round, the ideal times in Wilmington are late spring (April-May) or early fall (September-October). These periods typically avoid the peak summer heat, which can make attic work extremely uncomfortable for installers and potentially slow the project, as well as our occasional winter rain. Scheduling during these milder windows often leads to better availability and ensures your home is prepared for both summer cooling and occasional cooler nights.
Yes, California's Title 24 energy code sets strict requirements for insulation R-values, especially for major renovations, so your contractor must be familiar with these standards. Critically, Los Angeles County has specific regulations for vermiculite insulation testing and asbestos mitigation in older homes, which is common in Wilmington's housing stock. Additionally, check for current rebates from the LADWP or state programs like Energy Upgrade California, which can significantly offset project costs.
Always verify the contractor holds a valid California CSLB license (C-2 Insulation and Acoustical classification) and carries ample insurance. Seek out local providers with strong references in Wilmington or the South Bay, as they will have specific experience with our mix of coastal humidity, older pier-and-beam foundations, and common attic venting challenges. Be wary of door-to-door sales with high-pressure tactics and always get 2-3 detailed, written estimates.
Absolutely. While standard thermal insulation provides some sound dampening, for significant noise reduction from port activity, rail, or traffic, you should discuss adding specialized acoustic insulation (like dense rock wool batts) in interior walls and ceilings. Combining this with air sealing—a critical step often overlooked—will not only reduce noise infiltration but also block the cool, damp bay breezes that contribute to drafts and energy loss in Wilmington.