The Best Insulation Contractors in San Fernando, CA

Compare the highest-rated insulation professionals in San Fernando, California. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Attic Construction

4.8
(800 reviews)
Verified

A highly specialized company focusing primarily on attic services, including insulation removal and replacement, air sealing, and rodent proofing. They are renowned for their thoroughness, use of high-quality materials like blown-in cellulose and fiberglass, and their strong emphasis on improving home energy efficiency. They service the entire San Fernando Valley.

3558 Fourth Ave, San Diego, CA 92103 (Primary location, serves San Fernando from their Southern CA network)

Specialties & Features

Attic Insulation
Insulation Removal
Air Sealing

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#2

Koala Insulation of Southern California

4.9
(150 reviews)
Verified

Part of a national brand with a strong local franchise, Koala Insulation offers a comprehensive suite of services for residential and commercial properties. They are praised for their professionalism, free energy audits, and expertise in all types of insulation, including spray foam, blown-in, and batt. They are based in the Valley and explicitly list San Fernando in their service area.

10645 N Tulare St, Granada Hills, CA 91344

Specialties & Features

Blown-in Insulation
Spray Foam
Energy Efficiency Audits

Business Information

Years in Business:5 years
Licensed:Yes
Insured:Yes
#3

Radiant Drywall & Insulation

4.7
(200 reviews)
Verified

A well-established local contractor providing a wide range of insulation and drywall services. They have extensive experience with new construction, remodels, and retrofits, making them a versatile choice for any project. Their expertise includes wall insulation, basement/crawl space encapsulation, and spray foam application, with a strong focus on adhering to California building codes and energy standards.

9246 Mason Ave, Chatsworth, CA 91311

Specialties & Features

Spray Foam Insulation
Wall Insulation
Crawl Space Insulation

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in San Fernando

** The insulation market in San Fernando is competitive and served by a mix of specialized local contractors and larger regional companies based in neighboring San Fernando Valley hubs like Chatsworth, Granada Hills, and Burbank. Due to California's strict Title 24 energy codes and the hot, dry climate of the area, there is a high demand for energy-efficient upgrades, particularly attic insulation and air sealing to reduce cooling costs. The average quality of service is high, with leading contractors holding relevant certifications (like from the Spray Polyurethane Foam Alliance) and being well-versed in available rebates from programs like those from the LADWP or SoCalGas. Pricing is typically mid-to-high range, reflecting the cost of labor and materials in California. For a standard attic blown-in insulation job, homeowners can expect to pay between $1,500 and $3,500, while more complex spray foam applications or full-home projects can range from $4,000 to $15,000+. The market is characterized by strong competition on both quality and customer service, making it advantageous for consumers to obtain multiple quotes.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with San Fernando regulations and climate

Frequently Asked Questions About Insulation in San Fernando

Get answers to common questions about insulation services in San Fernando, California.

1What is the typical cost range for adding or upgrading attic insulation in a San Fernando home?

For a typical 1,500 sq ft home in San Fernando, adding blown-in cellulose or fiberglass attic insulation to reach the recommended R-38 value typically costs between $1,500 and $3,500. The final price depends on the existing insulation, attic accessibility, and the material chosen. California's Title 24 energy standards often influence recommended R-values, and local providers may offer rebates through programs like LADWP or SoCalGas to help offset costs.

2When is the best time of year to install insulation in San Fernando?

The ideal time is during our mild, dry seasons—late spring (April-May) or early fall (September-October). This avoids the intense summer heat, which can make attic work unbearable and less efficient, and the cooler winter rains. Scheduling during these shoulder seasons also ensures your home is properly sealed and insulated before peak cooling or heating demands, maximizing comfort and energy savings year-round.

3Are there specific local regulations or permits required for insulation work in San Fernando?

Yes, insulation projects must comply with the California Energy Code (Title 24), which sets strict performance standards for thermal efficiency. While simple "like-for-like" replacement often doesn't require a permit, any major upgrade or alteration to the building envelope typically does. A reputable, licensed San Fernando contractor will know the specific requirements of the Los Angeles County Building and Safety Department and will handle the permitting process for you.

4How do I choose a reliable insulation contractor in the San Fernando Valley?

Always verify the contractor holds a valid California CSLB license (specialty C-2 or B-General Building). Ask for proof of liability insurance and worker's compensation. Look for companies with strong local references and experience with our specific climate challenges, such as mitigating heat gain and addressing potential rodent issues in older homes. Check their knowledge of local utility rebate programs to ensure you get all available savings.

5My older San Fernando home gets extremely hot in the summer. Will insulation alone solve this?

Insulation is a critical first step to slowing heat transfer, but in our high-desert-influenced climate with intense sun, a comprehensive approach is best. This should include air sealing to stop hot air infiltration, assessing attic ventilation (soffit/ridge vents), and considering radiant barrier installation in the attic. Combining these measures with proper insulation (like spray foam or high-R-value batts) will dramatically improve comfort and reduce air conditioning costs.