Top 10 Best Insulation
We list insulation contractors offering energy-efficient solutions like spray foam and attic insulation. Experts are selected for experience, material quality, and proven results.
Reactic Restoration
Fairfax Avenue, San Francisco, California- Sewage & Biohazard
- Water Damage
- Moisture Control
- See More
Mold Removal & Water Damage in San Francisco The professional mold remediation and water damage removal services of Reactic Restoration in San Francis More Detail
Air Plus Heating & Cooling
Chesapeake Drive, San Diego, California- Air Duct Cleaning
- Ductwork
- Evaporator Coil Cleaning
- See More
Service, sales and installation of residential central heating and air conditioning. We also service/install ductless mini splits, install whole house More Detail
Building Doctors
Wilshire Boulevard, Los Angeles, California- Heating & Air Conditioning/HVAC
- Ductless A/C Services
- Home Energy
- See More
We are a home performance contractor that specializes in energy efficiency improvements in homes. We use building science based tools during our diagn More Detail
Attic Crew
Ross Avenue, San Jose, California- Air Duct Replacement
- Rodent Proofing
- Crawl space Cleaning
- See More
We offer attic and crawlspace cleaning and sanitizing, insulation, radiant/moisture barrier, air duct replacement, rodent proofing services and more! More Detail
YS HOME BUILDERS INC INSULATION
Ventura Boulevard, Los Angeles, California- Insulation installation
- Air Duct Cleaning
- Air Duct Cleaning
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Y&S Home Builders is one of the top attic insulation installation contractors in the area. We have several years of experience with removing and insta More Detail
Dan Peña Drywall
Narvaez Avenue, San Jose, California- painters
- Painting exterior elements
- Carpenters
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Here at Dan Pena Drywall we take pride in providing each and every customer the personal attention and detail needed for your drywall project. We also More Detail
Attic Elite
Cedar Boulevard, San Francisco, California- Fully Customized Plan
- Whole-House Fans
- Crawl Space Encapsulation
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With Attic Elite you get a company with more than 20 years expertise, multiple trucks & crews, and the equipment necessary to perform your service in More Detail
Dante Faraone construction
East Washington Avenue, San Diego, California- Insulation removal
- Insulation inspection
- Insulation Installation
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At Phoenix Insulation Inc, we live by a code: we don’t compromise quality. We strive to provide excellent results with every job, treating each cust More Detail
Building Efficiency, Inc.
Irving Street, San Francisco, California- Heat Pump Heating & Cooling
- Electrification
- Heat pump water heater
- See More
Building Efficiency is a team of dedicated home performance professionals based in San Francisco. Since operations began in 2009, we have performed hu More Detail
AttiCity
Epic Way, San Jose, California- Insulation Installation
Certified & Experienced Insulation Contractors. Expect nothing but excellence with AttiCity. Our seasoned pros bring expertise and quality to every jo More Detail
Frequently Asked Questions
Insulation reduces heat loss in winter and heat gain in summer, making your home more energy-efficient and comfortable. It also lowers energy bills and improves indoor air quality.
It depends on the area:
- Fiberglass batts – Common for walls and attics.
- Spray foam – Provides airtight sealing for attics and basements.
- Blown-in insulation – Great for hard-to-reach areas.
- Rigid foam boards – Ideal for exterior walls and basements.
Most insulation lasts 20–100 years, but it may need replacement sooner if it gets damaged by moisture, pests, or settling.
Signs include uneven temperatures, high energy bills, drafts, and cold walls or floors. A professional energy audit can determine if your home needs more insulation.
Costs vary based on insulation type and home size, ranging from $1,500 to $5,000. The savings in reduced energy costs make it a great long-term investment.