The Best Insulation Contractors in Janesville, CA

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

#1

Sierra Pacific Home Comfort

4.8
(120 reviews)
Verified

A leading regional provider specializing in comprehensive home energy efficiency solutions. They are well-regarded for their professional audits and high-quality installation of both spray foam and blown-in insulation, particularly in attics and crawl spaces. They are known for their knowledge of local utility rebates.

472-400 Pioneer Rd, Susanville, CA 96130 (Primary service location for the region)

Specialties & Features

Energy efficiency audits
Spray foam insulation
Air sealing services

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Attic Masters Insulation & Air Sealing

4.7
(85 reviews)
Verified

While based further out, this company has a strong reputation for servicing a wide area of Northern California, including the Lassen County region. They focus heavily on attic services, including insulation removal, air sealing, and installing new cellulose or fiberglass insulation to improve home comfort and efficiency.

Serves the Greater Northern California area, including Janesville.

Specialties & Features

Attic insulation installation and upgrade
Insulation removal and replacement
Blown-in insulation installation

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

Nor Cal Insulation

4.6
(70 reviews)
Verified

A local contractor known for reliable residential and light commercial insulation work. They offer a range of services from wall insulation in existing homes to basement and crawl space encapsulation. They are a good option for more standard batt and blown-in insulation projects.

Serves the Susanville and Janesville area.

Specialties & Features

Wall insulation services
Basement and crawl space insulation
Blown-in insulation installation

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Janesville

** The insulation market in and around Janesville, CA, is characteristic of a rural, mountainous region. The service area is vast, but the number of dedicated, local insulation contractors is limited. Homeowners often rely on providers from the larger hub of Susanville (approx. 15 miles away) or regional companies that service Northern California. The competition is not dense, but the existing providers are established and reputable, often handling a wide range of services from new construction to retrofits for older homes. The average quality of service is high, as these companies must be versatile to handle the specific climate demands of the Sierra Nevada, which include cold winters and hot, dry summers. Typical pricing is moderately competitive but can be higher than in urban areas due to travel time and the cost of transporting materials. Homeowners are increasingly seeking energy efficiency audits and air sealing services to combat high heating costs in winter, and many providers are knowledgeable about available rebates from providers like Pacific Power. Common project types include upgrading old, under-performing attic insulation and insulating crawl spaces to protect pipes from freezing.

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 Janesville regulations and climate

Frequently Asked Questions About Insulation in Janesville

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

1What are the most important insulation considerations for Janesville's climate?

Janesville experiences a high-desert climate with hot, dry summers and cold, snowy winters, making year-round thermal performance critical. We prioritize air sealing and installing insulation with a high R-value, especially in attics and crawl spaces, to combat significant temperature swings. Using materials like blown-in cellulose or fiberglass batts that resist settling and provide consistent coverage is key to managing both summer heat gain and winter heat loss efficiently.

2How much does insulation installation typically cost for a home in the Janesville area?

Costs vary based on home size, material (e.g., fiberglass batts vs. spray foam), and the areas being insulated (attic, walls, floors). For a standard attic insulation upgrade in a 1,500 sq ft home, homeowners can generally expect a range of $1,500 to $3,500. It's important to get multiple itemized quotes, as regional material transport costs to our more rural location can influence pricing compared to larger California metros.

3Are there any California or local Lassen County regulations or rebates I should know about?

Yes, California's Title 24 Building Energy Efficiency Standards set strict requirements for insulation R-values and air sealing, which any professional installer must follow. Furthermore, homeowners should inquire about available rebates through programs like those from Pacific Gas and Electric (PG&E), which serve Janesville, and federal tax credits for energy-efficient home improvements, which can significantly offset the upfront cost.

4What is the best time of year to install or upgrade insulation in Janesville?

While insulation can be installed year-round, the ideal periods are late spring (May-June) and early fall (September-October). These seasons typically offer milder weather, making it easier for crews to work effectively in your attic before the intense summer heat or the winter freeze sets in. Scheduling during these windows also ensures your home is prepared for the upcoming extreme season.

5How do I choose a reliable insulation contractor in Janesville?

Always verify the contractor is licensed, insured, and has experience with Title 24 compliance. Ask for local references in the Janesville or Susanville area and check reviews specific to their performance in our climate. A reputable provider will perform a thorough energy assessment, explain the recommended R-values for our zone, and provide a detailed written contract outlining the scope, materials, and warranty.