Top 10 Best Insulation in San Jose, California

We list insulation contractors offering energy-efficient solutions like spray foam and attic insulation. Experts are selected for experience, material quality, and proven results.

Universal Insulation

Dell Avenue, San Jose, California
4.6 (157 reviews)
  • Attics / Walls & Floors
  • Insulation Replacement
  • Cellulose Blown In
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When you choose Universal Insulation, you are choosing a service that is dedicated to providing superior customer service and skilled craftsmanship. W More Detail

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Evergreen Supply

Monterey Road, San Jose, California
4.6 (224 reviews)
  • Landscaping
  • Landscapers and Contractors
  • Building and construction supplies
  • See More

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

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Aydin's Building Supply ABS WINDOW AND DOOR

South 10th Street, San Jose, California
4.6 (416 reviews)
  • Floor installation
  • Flooring
  • Skylight installation
  • See More

windows & doors ndows aluminum commercial storefronts, interior & exterior entry doors,glass, table tops,mirrors shower enclosures,closet doors vinyl More Detail

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Stucco Supply & Drywall

Little Orchard Street, San Jose, California
4.6 (103 reviews)
  • 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

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ABC Supply Co. Inc.

Phelan Avenue, San Jose, California
3.8 (69 reviews)
  • Express Pickup
  • Service Assurance
  • Solution Center
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ABC Supply Co., Inc. is the largest wholesale distributor of roofing and other select exterior and interior building products in North America, with n More Detail

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Foundation Building Materials

Olinder Court, San Jose, California
3.6 (52 reviews)
  • Foundation Building Materials
  • Drywall Tools
  • Steel
  • See More

In the Regina area, contractors depend on Foundation Building Materials for drywall, metal framing, drywall tools and fasteners. You can rely on FBM f More Detail

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Foundation Building Materials

Emory Street, San Jose, California
3.6 (52 reviews)
  • Building Supplies

In the Regina area, contractors depend on Foundation Building Materials for drywall, metal framing, drywall tools and fasteners. You can rely on FBM f More Detail

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L&W Supply - San Jose, CA

Senter Road, San Jose, California
2.7 (30 reviews)
  • Delivery Services
  • Building Supplies
  • Returns
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Building Supplies More Detail

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White Cap

Brennan Street, San Jose, California
3.5 (119 reviews)
  • Rebar Fabrication
  • Jobsite Delivery
  • Tilt-Up Rental
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White Cap provides specialty products, valuable services, and expertise to professional contractors. More Detail

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Pro Desk at The Home Depot

West Capitol Expressway, San Jose, California
3.5 (318 reviews)
  • Protection Plans
  • Tool Rental
  • Large Equipement Rental
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To contact Customer Service please call (866)466-3337, then press option 7. More Detail

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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.