The Best Insulation Contractors in Montclair, CA

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

#1

Atticare Construction

4.8
(280 reviews)
Verified

A highly-rated and reputable company specializing in comprehensive home insulation and energy efficiency solutions. They are known for their professional energy audits, advanced diagnostic tools, and high-quality installation of various insulation types, including spray foam and blown-in cellulose. They strongly emphasize air sealing as a core part of their service.

1545 W Brooks St, Ontario, CA 91762 (Approx. 3 miles from Montclair)

Specialties & Features

Attic Insulation
Spray Foam Insulation
Energy Efficiency Audits

Business Information

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

Sterling Services

4.7
(180 reviews)
Verified

A well-established contractor with a strong focus on both residential and commercial insulation. They have extensive experience with all major insulation materials and methods. Sterling Services is often noted for their expertise in complex projects, insulation removal, and their knowledge of local building codes and potential rebate programs.

222 N Mountain Ave #2, Upland, CA 91786 (Approx. 4 miles from Montclair)

Specialties & Features

Insulation Removal and Replacement
Blown-In Insulation
Wall Insulation

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Koala Insulation of San Gabriel Valley

4.9
(120 reviews)
Verified

Part of a national brand with a strong local franchise, Koala Insulation focuses on eco-friendly and cost-effective insulation solutions. They excel at providing clear consultations and using recycled content materials like blown-in cellulose. Their services are comprehensive, covering from attic and wall insulation to basement and crawl space encapsulation.

320 N Turnbull Canyon Rd, City of Industry, CA 91745 (Serves the broader region including Montclair)

Specialties & Features

Blown-In Cellulose
Crawl Space Insulation
Air Sealing Services

Business Information

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

Why These Are the Top Insulation Contractors in Montclair

** The insulation market in Montclair and the surrounding Inland Empire is competitive and service-rich, characterized by a mix of long-standing local contractors and newer, service-focused franchises. The quality is generally high, as companies must adhere to strict California Title 24 energy codes, which drive demand for professional installation and energy audits. The housing stock in Montclair includes many older homes built before modern energy standards, creating a consistent need for insulation upgrades and replacement. Competition is robust, which benefits consumers through competitive pricing and a strong emphasis on customer service. Typical pricing is influenced by California's high cost of living and materials. As a rough guide: * **Attic Insulation (Blown-In):** $1,500 - $4,500 * **Spray Foam Insulation (per board foot):** $1.50 - $3.50 (highly variable based on type - open vs. closed cell) * **Whole-House Energy Audit:** $300 - $600 Homeowners in Montclair are encouraged to inquire about available rebates from programs like Energy Upgrade California and through local utility providers (e.g., Southern California Edison, SoCalGas), which most reputable contractors are knowledgeable about and can help facilitate.

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 Montclair regulations and climate

Frequently Asked Questions About Insulation in Montclair

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

1What are the most important types of insulation for homes in Montclair, CA, given our local climate?

For Montclair's hot, dry summers and mild winters, radiant barrier insulation in the attic is highly effective at reflecting heat away, significantly reducing cooling costs. Additionally, air sealing and upgrading attic batts or blown-in insulation to modern standards (like R-38) are critical, as they prevent the cool, air-conditioned air from escaping. Proper insulation also helps with sound dampening from local traffic on the I-10 and nearby streets.

2How much does insulation installation typically cost for a Montclair home, and are there any rebates?

Costs vary by home size and material, but a typical attic insulation upgrade in Montclair ranges from $1,500 to $4,500. Crucially, Montclair homeowners should explore rebates from the statewide Energy Upgrade California program and direct incentives from utility providers like Southern California Edison (SCE). These can substantially offset the cost for qualifying energy-efficient upgrades.

3When is the best time of year to have insulation installed in Montclair?

The ideal time is during our mild fall (October-November) or spring (March-April) to avoid extreme attic heat in summer and any potential rain in winter. Scheduling during these shoulder seasons is easier and ensures the work is completed before the peak cooling season begins, allowing you to maximize energy savings during the hottest months.

4What should I look for when choosing a local Montclair insulation contractor?

Always verify the contractor is licensed (C-2 Insulation and Acoustical contractor's license), insured, and has strong local references. Choose a provider experienced with Montclair's specific building codes and the common construction styles in our area's homes. They should also be knowledgeable about current California Title 24 energy standards and able to help you navigate available rebate paperwork.

5My house feels drafty even with insulation. What's a common issue in older Montclair homes?

A primary issue in many older Montclair homes is inadequate air sealing, not just lack of insulation. Gaps around recessed lights, attic hatches, plumbing vents, and ductwork in the attic allow conditioned air to escape. A professional energy audit or insulation assessment will identify these leaks; sealing them is often the first and most cost-effective step before adding more insulation.