The Best Insulation Contractors in Claremont, CA

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

#1

Attic Crew

4.8
(280 reviews)
Verified

A highly-rated, specialized provider focusing on comprehensive attic services, including insulation removal, air sealing, and installing new blown-in or spray foam insulation. They are known for their thorough energy efficiency approach and clean workmanship.

320 S Raymond Ave #205, Alhambra, CA 91803 (Serves Claremont)

Specialties & Features

Attic insulation installation and upgrade
Air sealing services
Insulation removal and replacement

Business Information

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

Koala Insulation of San Gabriel Valley

4.9
(150 reviews)
Verified

Part of a national brand with a strong local presence, Koala Insulation offers a wide range of services including blown-in, batt, and spray foam insulation for residential and commercial properties. They emphasize free energy audits and knowledge of local rebate programs.

410 S Valinda Ave #6, Industry, CA 91744 (Serves Claremont)

Specialties & Features

Blown-in insulation installation
Spray foam insulation
Energy efficiency audits

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes
#3

Green Energy Experts

4.7
(90 reviews)
Verified

This provider specializes in creating energy-efficient homes through advanced insulation and air sealing techniques. They are well-versed in the latest building science and often work on projects aiming for high performance standards, including basement and crawl space encapsulation.

1472 S San Gabriel Blvd, San Gabriel, CA 91776 (Serves Claremont)

Specialties & Features

Wall insulation services
Basement and crawl space insulation
Spray foam insulation

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Claremont

The insulation market in Claremont is competitive and characterized by high-quality, specialized contractors rather than a high volume of local providers. Due to Claremont's climate, with warm summers and mild winters, the primary driver for insulation upgrades is summer heat gain and overall year-round energy efficiency. Homeowners are often interested in attic insulation and air sealing to combat high cooling costs. The market is also influenced by California's strict building codes (Title 24) and various state and utility rebate programs (like those from SoCalGas and SCE), which reputable contractors are expected to navigate. Pricing is typically mid-to-high range, reflecting the quality of materials and the expertise required. For a standard attic blow-in insulation job, homeowners can expect to invest anywhere from $1,500 to $4,500, while more complex projects like spray foam or full-home air sealing can range from $5,000 to $15,000 or more. The top contractors are distinguished by their deep knowledge of these rebates, building science, and a strong focus on comprehensive home performance rather than just material installation.

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 Claremont regulations and climate

Frequently Asked Questions About Insulation in Claremont

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

1What type of insulation is most effective for Claremont's climate, and where should I prioritize adding it in my home?

For Claremont's hot, dry summers and mild winters, radiant barrier insulation in the attic is highly effective at reflecting solar heat, reducing cooling costs significantly. Blown-in cellulose or fiberglass in attic floors and walls also provides excellent thermal resistance. Prioritizing the attic is crucial, as heat gain there directly impacts your home's temperature, followed by sealing air leaks around doors, windows, and ductwork in conditioned spaces.

2How much does insulation installation typically cost for a Claremont home, and are there any local rebates or incentives?

Costs vary by home size and material, but Claremont homeowners can expect to pay between $1,500 to $4,500 for a standard attic insulation project. It's important to get itemized quotes. Significant incentives are available through statewide programs like Energy Upgrade California and specific offers from SoCalGas and Southern California Edison, which can cover a substantial portion of the cost for qualifying energy-efficient upgrades.

3When is the best time of year to have insulation installed in Claremont, and how long does the project usually take?

The ideal time is during Claremont's milder spring or fall to avoid extreme attic heat in summer and any rare rainy periods in winter. Most single-family home projects, like attic insulation, are completed in 1-2 days with minimal disruption. Scheduling in these off-peak seasons can also provide better availability from reputable local contractors.

4What should I look for when choosing an insulation contractor in the Claremont area?

Always verify the contractor is licensed (C-2 Insulation and Acoustical or B-General Building), insured, and has strong local references. Choose a provider experienced with Title 24 (California's Energy Code) requirements for retrofits and who performs a thorough energy audit or assessment first. Be wary of door-to-door sales and always get multiple detailed, written estimates.

5My home is older and has existing insulation. How do I know if it needs to be replaced or topped up, and are there health concerns like asbestos?

In Claremont's many older homes, insulation can settle, degrade, or become contaminated. Signs you need an upgrade include uneven temperatures, high energy bills, and visible gaps. For homes built before 1980, have a professional check for asbestos in vermiculite or pipe insulation before any disturbance. A qualified contractor can conduct an assessment and safely handle any hazardous material abatement if needed.