Compare the highest-rated insulation professionals in San Diego, California. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly specialized and reputable company focusing primarily on attic services, including insulation removal and installation, air sealing, and rodent proofing. They are known for their thorough energy efficiency approach, professional crews, and clear communication. They are a top choice for comprehensive home performance upgrades.
Greencat is a standout contractor known for high-end spray foam and blown-in insulation solutions. They place a strong emphasis on building science and creating high-performance building envelopes. Their expertise is frequently highlighted in reviews, and they often work on projects aiming for net-zero energy consumption.
Eco-Right has built a strong reputation for being a reliable, eco-conscious, and customer-focused provider. They excel in blown-in cellulose and fiberglass insulation for attics and walls, and they are well-versed in the available rebate programs from SDG&E and other agencies to help homeowners save money.
** The insulation market in San Diego is robust and competitive, driven by the city's mild but variable climate, high energy costs, and a strong homeowner focus on sustainability and comfort. The average quality of service is high, with several contractors holding advanced certifications from BPI (Building Performance Institute) and being recognized partners with ENERGY STAR® and local utilities. **Competition Level:** High. There are numerous providers, but the top-tier companies distinguish themselves through specialized expertise (e.g., spray foam applications), comprehensive home energy audits, and superior customer service. **Typical Pricing:** Pricing is at a premium due to the high cost of living and stringent California building codes. * **Blown-In Attic Insulation:** $1,500 - $4,500 * **Spray Foam Insulation:** $3,000 - $7,500+ (highly variable based on R-value and board feet) * **Wall Insulation:** $2,000 - $5,000+ Many homeowners offset these costs by taking advantage of significant rebates and incentives offered through **SDG&E** and state programs, which the most reputable contractors are adept at navigating for their clients.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with San Diego regulations and climate
Get answers to common questions about insulation services in San Diego, California.
For our mild, coastal climate with cool nights and warm days, the priority is often attic insulation to prevent heat gain in summer and retain warmth in winter. Blown-in cellulose or fiberglass is excellent for attics, while spray foam is ideal for sealing air leaks in crawl spaces and rim joists. Wall insulation is also crucial, especially in older homes, to improve overall thermal comfort and energy efficiency year-round.
Costs vary significantly based on home size, material, and scope, but a typical attic insulation project in San Diego ranges from $1,500 to $4,500. Regional material and labor costs are higher than the national average. It's important to get multiple itemized quotes, and remember that California-specific rebates (like those from SDG&E) and federal tax credits can offset 30% or more of the cost for qualifying energy-efficient upgrades.
Insulation can be installed year-round, but the ideal time is during our mild spring (April-May) or fall (September-October). This avoids the peak summer heat in the attic, which can be hazardous for workers, and the occasional winter rains. Scheduling during these shoulder seasons also ensures your home is optimally prepared for both the cooling and heating seasons.
Always verify the contractor is licensed, insured, and specifically experienced with California's Title 24 energy codes and local building codes. Look for established local companies with strong reviews that understand San Diego's microclimates. Ensure they perform a thorough energy audit or assessment first and provide a detailed, written contract specifying the R-value, material type, and square footage to be covered.
Not always, but it depends on the condition. If the existing insulation (like vermiculite or old fiberglass) is damp, moldy, compacted, or contains pests, removal is necessary. For most homes, if the old insulation is dry and in good shape, new insulation can be added on top ("topping up") to achieve the recommended R-Value for our zone (typically R-38 to R-60 for attics). A professional assessment is key to making this determination safely.