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.
Johnson's Insulation
Broadway, San Francisco, California- Insulation installation
- Building energy audit
- Wall Insulation
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At Johnsons Insulation, we pride ourselves as being the best technically sound insulation services for attics, crawlspaces and walls in Alameda, Contr More Detail
Evergreen Supply
Monterey Road, San Jose, California- Landscaping
- Landscapers and Contractors
- Building and construction supplies
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Landscape Supplies Building Material Hardscape History Established in 1961. Evergreen Supply was started in San Jose, CA in 1961. We are a fami More Detail
Rhino Siding & Window Replacement
Girard Street, San Francisco, California- Casement Windows
- Single and Double Hung Windows
- Specialty Windows
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Rhino Builders is a company that prides itself on providing top-tier window installations, exterior siding, and other home improvement services that s More Detail
SDI Insulation Inc
Lang Road, San Francisco, California- Commercial Insulation Services
- Spray Foam Insulation
- Insulation Removal
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We are the San Francisco Bay Area’s insulation and fireplace experts and ultimate resource for Building Efficiency Expertise. More Detail
TipTop Insulation
South Vermont Avenue, Los Angeles, California- Radiant Barriers
- Insulation Removal
- Spray Foam Insulation
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At TipTop Insulation, we are professional insulation contractors in Los Angeles, CA offering At TipTop Insulation, we offer comprehensive insulation s More Detail
Aydin's Building Supply ABS WINDOW AND DOOR
South 10th Street, San Jose, California- Floor installation
- Flooring
- Skylight installation
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windows & doors ndows aluminum commercial storefronts, interior & exterior entry doors,glass, table tops,mirrors shower enclosures,closet doors vinyl More Detail
Stucco Supply & Drywall
Little Orchard Street, San Jose, California- Stucco repair
- Restuccoing
- Drywall repair
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Stucco Supply Co has been one of the leading manufacturers of quality stucco finishes in Northern California. We offer an extensive array of lath, pla More Detail
Giants Restoration
Geary Boulevard, San Francisco, California- Sawage cleanup
- Mold remediation
- Storm damage restoration
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We are a restoration company dedicated to helping every household achieve a peaceful place to live in. We have been serving the areas of San Francisco More Detail
Temper Insulation Co., Inc.
Folsom Street, San Francisco, California- Firestopping
- Mechanical Insulation
With over 20 years in the business, Temper Insulation Co., Inc. is your go-to solution for Mechanical Insulation and Firestopping systems. Based in th More Detail
Carini Home Services
Washington Street, San Diego, California- Water Filtration
- Security Lighting Installation
- Whole-House Rewiring
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Since 2006, we have provided San Diego County residents with dependable HVAC, Plumbing & Electrical 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.