The Best Insulation Contractors in Westminster, CA

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

#1

Attic Construction

4.8
(1 reviews)
Verified

A highly reputable and specialized contractor focusing exclusively on attic and crawl space services. They are a leader in Southern California for insulation removal and replacement, attic cleaning, and rodent proofing. Their expertise in air sealing and improving home energy efficiency is frequently highlighted in customer reviews.

22321 Carbon Mesa Rd, Mission Viejo, CA 92691 (Serves Westminster extensively)

Specialties & Features

Insulation Removal and Replacement
Attic Insulation
Air Sealing

Business Information

Years in Business:13 years
Licensed:Yes
Insured:Yes
#2

Radiant Barrier Experts

4.9
(250 reviews)
Verified

This company specializes in advanced insulation solutions, particularly radiant barrier installation, which is highly effective in sunny climates like Westminster's. They are praised for their technical knowledge, professionalism, and effectiveness in reducing attic temperatures and cooling costs. They offer a full suite of insulation services.

Serves all of Orange County, including Westminster from a central location.

Specialties & Features

Radiant Barrier Installation
Spray Foam Insulation
Blown-In Insulation

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

All Bright Insulation & Solar

4.7
(180 reviews)
Verified

A full-service insulation contractor known for its work in both residential and commercial properties. They combine insulation services with energy efficiency audits and solar, providing a holistic approach to home performance. Their knowledge of local utility rebates (like those from SoCalGas and SCE) is a significant strength for homeowners looking to offset costs.

15471 Red Hill Ave, Tustin, CA 92780 (Directly serves the Westminster area)

Specialties & Features

Energy Efficiency Audits
Blown-In Cellulose Insulation
Wall Insulation Services

Business Information

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

Why These Are the Top Insulation Contractors in Westminster

** The insulation market in Westminster, California, is competitive and service-rich, driven by the region's climate—hot summers and mild but potentially damp winters—which makes energy efficiency a priority for homeowners. The market is characterized by a mix of large, well-marketed national franchises and highly skilled, local/regional specialists. The average quality is high, as contractors must adhere to strict California Title 24 energy codes. **Competition Level:** High. Homeowners have many options, which drives quality and customer service standards upward. The best providers distinguish themselves with specialized knowledge, superior materials, and robust warranties. **Typical Pricing:** Pricing is on the higher end due to California's labor costs and material standards. However, the return on investment is significant due to energy savings. * **Blown-In Insulation (Attic):** $1,500 - $4,500 * **Spray Foam Insulation (Attic):** $4,000 - $10,000+ * **Wall Insulation:** $2,000 - $5,000 * **Insulation Removal:** $1 - $4 per square foot (in addition to new insulation cost) A key factor in the local market is the availability of **rebates and incentives**. Reputable contractors are well-versed in programs from Southern California Edison (SCE) and SoCalGas, which can substantially reduce the net cost of insulation and air sealing upgrades for qualifying homeowners. It is crucial to work with a licensed and insured contractor who can provide a proper proposal for these rebate programs.

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 Westminster regulations and climate

Frequently Asked Questions About Insulation in Westminster

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

1What is the recommended R-value for attic insulation in Westminster, and why is it specific to our area?

For Westminster's mild coastal-influenced climate, the California Title 24 energy code recommends an attic insulation R-value of R-38 to R-49. This is because while our winters are mild, summers can bring significant heat gain through the roof. Proper attic insulation at this level is crucial for keeping your home cool efficiently, reducing AC runtime, and lowering energy bills, which is a primary concern for local homeowners.

2How much does it typically cost to insulate an attic in Westminster, and what factors influence the price?

For a standard 1,500 sq. ft. attic in Westminster, blown-in insulation installation typically ranges from $1,800 to $3,500. Key cost factors include the chosen material (fiberglass vs. cellulose), the current R-value you need to achieve, attic accessibility, and the removal of old, inadequate insulation. Local material costs and compliance with California's strict energy codes also influence the final price.

3When is the best time of year to schedule insulation installation in Westminster?

The ideal time is during our mild spring (March-May) or fall (September-November) seasons. This avoids the peak summer heat, which makes attic work extremely uncomfortable and less safe for installers, and the occasional rainy winter days. Scheduling during these shoulder seasons also ensures your home is fully optimized before the more extreme temperature months arrive.

4Are there any local rebates or incentives in Westminster for upgrading my home's insulation?

Yes. Westminster residents should first check with the City of Westminster Public Works Department for any local programs. The primary source is typically through Southern California Edison (SCE) and SoCalGas, which offer rebates for insulation upgrades that meet specific performance criteria under the statewide Energy Upgrade California program. These incentives can significantly offset your project cost.

5What should I look for when choosing a Westminster-based insulation contractor?

Always verify the contractor is licensed (California Contractors State License Board - CSLB), insured, and has specific experience with Westminster's climate and Title 24 requirements. Ask for local references and ensure they perform a thorough energy assessment, not just a quote. A reputable local provider will understand the importance of proper ventilation to prevent moisture issues common in our coastal-influenced air.