Johnson’s Insulation

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About

At Johnsons Insulation, we provide technically sound insulation solutions for attics, crawl spaces, and walls throughout Contra Costa and the surrounding area. With 10 years in business and a dedicated team of 10 technicians, we handle both insulation removal and replacement for residential and commercial properties. We’re licensed as Warm-Air Heating, Ventilating and Air-Conditioning, Air Duct Cleaning, and Insulation and Acoustical contractors, so your project is completed safely, correctly, and up to code. Whether you’re upgrading efficiency, improving comfort, or addressing rodent and animal issues before reinstalling insulation, we focus on creating a healthier space for you to live or work in. Contact us today to discuss your project and schedule an on-site assessment.

Overview

Current Top Pro

Hired 498 times

Serves Oakland, CA

Background checked

License verified

21 employees

10 years in business

Business hours

This pro hasn't listed their business hours.

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This pro accepts payments via Cash, Check, Credit card, PayPal, Square cash app, and Venmo.

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2019

Credentials

License verified

C61 / D64 – Air Duct Cleaning

License state: CA

Background checked

Passed by Miquan Johnson on Jun 16, 2021.

Services offered

Infestation issues

Animal type

Rats or mice

Squirrels

Services needed

Animal trapping and removal

Dead animal removal

Sealing of entry/exit points

Feces removal and cleanup

Projects and media

Reviews

Customers rated this pro highly for professionalism, work quality, and responsiveness.

Excellent 4.9

327 reviews

5

93%

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4%

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1%

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Read reviews that mention:

Sai K.

Mar 10, 2026

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Hired on Thumbtack

Details: Residential • Improving energy efficiency • Attic • Entire home • Need professional's recommendation

Insulation Installation or Upgrade

Robert J.

Mar 17, 2026

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Hired on Thumbtack

They responded the same day and came out quickly to review what I needed. It turned out I didn’t actually need what I initially thought, and instead of trying to charge me for unnecessary work, they gave me a helpful suggestion at no cost. Highly recommended—I’ll definitely use them again for any roofing or insulation needs.

Details: Install ducts and vents • 6 - 10 vents • Heating and cooling • I'd like the pro to buy the duct(s) and vent(s) • Two-story building • House

Duct and Vent Installation or Removal

Suzanne W.

May 1, 2026

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Hired on Thumbtack

Johnson’s Insulation did a fabulous job of removing our old insulation and cleaning and sanitizing our attic. Once cleaned, they added new insulation and were very thorough in their work. We were happy with the completed job.

Details: Residential • Improving energy efficiency • Attic • Entire home • Blown-in insulation

Insulation Installation or Upgrade

Edwin T.

4 weeks ago

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Hired on Thumbtack

Johnson’s Insulation responded promptly and came out to assess the crawlspace dangling insulation and rodent droppings issues. Contractors were sent the next day to remove old insulation and install missing insulation wires to keep them in place. Foam were also sprayed in the seams area. The whole crawlspace was also sanitized. All were finished within a few hours. Really happy with their work. Highly recommended

Details: Residential • Basements and crawlspaces • 1 room • Need professional's recommendation

Insulation Installation or Upgrade

John S.

Oct 9, 2025

•

Hired on Thumbtack

Details: Residential • Improving energy efficiency • Attic • 1 room

Insulation Installation or Upgrade

FAQs

What should the customer know about your pricing (e.g., discounts, fees)?
Free estimate. No hidden fees.
What is your typical process for working with a new customer?
Reach out to the customer to explain what the company has to offer. Schedule appointment and provide an free estimate.
What education and/or training do you have that relates to your work?
Building Performance Institute (BPI Certified Professional)

Johnson’s Insulation

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