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Best Insulation Contractors in San Diego, CA

Our Recommended Top 7

We did the research for you!

  • Licensing
  • User Reviews
  • Mystery Shopping Calls

Our goal is to connect people with the best local professionals. We scored San Diego Insulation Contractors on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best.



7Top Picks

Learn about our selection process.


featured provider = Featured Provider

San Diego, CA 92117 Rating

Review Sources

4.9 (275)

Why choose this provider?

Home & Attic Insulation San Diego caters to residential properties in the metro. It offers insulation installation services for roofs, attics, walls, garage doors, and crawl spaces. Its technicians conduct comprehensive inspections to determine the ideal solutions for the home's particular insulation and noise barrier needs and energy efficiency issues. They take the time to explain their findings to the homeowner. The company provides a wide range of solutions, from blown-in and spray foam to radiant barrier and fiberglass batts insulation.

Carlsbad, CA 92008 Rating

Review Sources

5.0 (15)
5.0 (1)

Why choose this provider?

BW Drywall Inc. is a second generation, family-owned drywall contracting business in Carlsbad. The service area includes all of San Diego and Orange county. The company was founded in 2001 and is a fully licensed California drywall contractor with liability and worker's compensation insurance. Services include new construction, home remodeling, drywall installation, repair, and restoration, and soundproof installation. Free in-home estimates can be requested over the phone.

San Diego, CA 92105 Rating

Why choose this provider?

Coastal Insulation & Specialty Services is a residential and commercial contractor catering to the San Diego community. Its team of technicians handles insulation projects such as fiberglass and spray foam removal and replacement. They install insulation for newly constructed or remodeled homes on areas such as walls, garage doors, and attics. In addition, they offer solutions like air sealing, soundproofing, and mold remediation. The company has been serving the community for more than 20 years.

San Diego, CA 92117 Rating

Review Sources

4.5 (396)
4.9 (308)
4.4 (13)

Why choose this provider?

Attic Construction was founded in San Diego by co-owners Joe and Kevin, who share a commitment to quality work and customer service. The founders also share over 10 years of industry experience and provide an array of cleaning and insulation services for attics, plus a permanent solution to rodent infestation problems. Insulation removal, decontamination, and re-insulation applications are available and can help lower clients' energy costs. All services performed are 100% guaranteed with a 12-month warranty. The company is BBB accredited with a rating of A and has received a number of five-star reviews from former customers.

Lakeside, CA 92040 Rating

Review Sources

4.0 (37)
4.0 (12)

Why choose this provider?

J & L Insulation is a Lakeside company founded in 1983 by Jack Keilman to specialize in new home construction, room additions, residential and commercial remodeling, and commercial insulation applications. The company is a certified Johns Manville Insulation Contractor and serves San Diego, Imperial, Riverside, and Orange counties. Services include fiberglass, blown, and cellulose insulation, air filtration, caulking, foams, acoustical insulation, and draft stopping. The company only uses formaldehyde-free insulation materials manufactured with 20% post-consumer and 5% post-industrial recycled glass.

Bonita, CA 91902 Rating

Review Sources

4.5 (278)

Why choose this provider?

NIX Termite is a pest control company in Bonita, family owned and operated since 1998. The business is committed to using the most effective and environmentally responsible methods available to control and deter pests such as termites, cockroaches, and silverfish. The company is a member of the BBB of California and the Pest Control Operators of California, among other professional organizations. Wood repair and environmentally-friendly insulation designed specifically for pest control are also available.

7554 Trade St Suite C-1, San Diego, CA 92121 Rating

Review Sources

5.0 (16)
5.0 (7)

Why choose this provider?

Attic Health is a locally owned business that caters to customers in San Diego. Its team was carefully assembled, bringing together experts from its parent company, Orange Restoration. The crew installs and removes insulation systems and performs attic cleaning and rodent removal. Attic Health, with its experience in the remediation industry, can address potential safety hazards such as frayed wires, moisture accumulation, air leaks, mold or mildew, and early signs of plumbing or water damage.

  • Attic Insulation Removal
  • Attic Insulation Installation
  • Attic Cleaning Services

Compare our Top Insulation Contractors

NameExpertise RatingAddressPromotionsLearn more
Home & Attic Insulation San Diego
BW Drywall Inc.
Coastal Insulation & Specialty Services
Attic Construction
J & L Insulation
NIX Termite
Attic Health San Diego
7554 Trade St Suite C-1, San Diego, CA 92121


  • Introduction

    Insulation is a crucial part of the building construction or renovation process, and having the right insulation in a structure can increase comfort, reduce energy costs, and minimize your carbon footprint. Because insulation comes in a variety of materials and forms, it can be difficult to choose what’s right for your project. Understanding the basics of insulation materials, measurement, and installation can help you choose the right product and professional installer for your home or business.

  • What is an insulator?

    An insulator is a substance that doesn’t readily conduct electricity, heat, or sound. In construction, insulators help keep heated and cooled air from passing through walls, ceilings, and floors to control energy costs, so interiors stay warmer in the winter and cooler in the summer. Insulators may also be used to soundproof rooms or protect against electrical shocks.

  • What does asbestos insulation look like?

    The most common type of asbestos insulation is vermiculite. This lightweight material is typically silvery-gold or grayish-brown with a pebble-like appearance. However, asbestos insulation also comes in other forms, including sheet-like wraps for use on pipes and HVAC ducting, and lumpy or snow-like loose-fill insulation commonly installed in attics and wall cavities.

  • Is plastic an insulator?

    Yes. Plastics are poor conductors of heat and electrical currents, so they function well as insulators. This man-made material may serve as insulation in vinyl siding, and because it’s moldable, it’s commonly used for wrapping wires.

  • What does insulation do?

    Insulation minimizes the exchange of heat in a structure. It can improve a building’s comfort by keeping it warmer when outside temperatures are cold and cooler when outside temperatures rise. It can also improve the efficiency of HVAC systems to reduce heating and cooling costs.

  • Is insulation flammable?

    Whether insulation is flammable depends on its composition. Most common insulation materials are designed to be fireproof or fire-resistant, but there are some, including spray foam and cellulose, that are flammable. Insulation materials may also include paper or foil backings, which may be flammable and should be treated with a fire retardant.

  • How do you find out how much insulation you need?

    To determine how much insulation you’ll need for a project, measure the height and length of the exterior walls. Multiple those two numbers to determine the square footage for each wall and then add them together. Repeat the measurement process for windows and doors and subtract that from the total.