Johnson's Insulation
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Johnson's Insulation is staffed with experienced and dedicated professionals. Serving Oakland, California and its nearby areas, our company is headed by Miquan Johnson. Miquan has certifications in Building Analyst and Building Science certifications from the Building Performance Institute, Inc. (BPI). He managed utility and government programs before he decided to start his own business. With his hands-on experience and knowledge about the industry, Miquan is someone you can rely on for high-quality services.
Services
At Johnsons Insulation, we pride ourselves as being the best technically sound insulation services for attics, crawlspaces and walls in Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo.

Our team of insulation removal and replacement expert technicians are trained to provide commercial and residential areas with services that are guaranteed to give you the necessary facility upgrade that allows you work or live and enjoy life in good health.
If the ducts in your home are in unconditioned space, such as the attic, be sure to seal and insulate them to maximize energy efficiency. We install both retrofit (re-insulation) and new construction attic insulation. We have experience installing different types of insulation in different types of attics.
Attics play a vital role in the condition and integrity of your home. When attics are not properly cleaned, sealed, and insulated, they produce unpleasant aromas, invite pests, and put a strain on your utility expenses. Attics can have numerous holes, cracks, and gaps in the walls and ceiling that allow dust and rain water to fill the space.
If your home has a crawl space that isn't insulated, it's not as energy-efficient as it could be, and as a result, you could be losing a lot of money! If your home has a crawl space, it needs to be insulated, as well as properly weatherized and sealed. Otherwise, you'll end up dealing with issues like moisture problems and soil vapor intrusion which can decrease indoor air quality.
Insulating both the interior and exterior walls is important if you want to maximize your home's energy efficiency and save the most money. Wall insulation is usually done when the home is about to be re-painted, re-stuccoed or texture-coated. The reason for this is due to the many holes we must drill on the face of the walls.
Reviews (2)
Masi Quraishi
Masi Quraishi
Sep 30, 2021
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Diamond certified?
Met with them to help with my insulation for my attic. Professional and courteous, said they would able to give me a quote ASAP since we met and potentially start Monday. Texted them Saturday asked if they work and if I could expect a quote said they would get it to me same day. Fast forward to Tuesday haven’t heard anything back generally if a contractor of any sort says they will do something and don’t you can bet your pants that’s how they will operate on the job.
Scott Andreas
Scott Andreas
Nov 22, 2020
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Positive: Professionalism, Quality, Responsiveness
Johnson’s did incredible work. In less than a week, we went from zero insulation in a messy attic to R38 installed at a much lower price than we expected and on-quote. The owner came by the next day to verify everything was done properly, too. We’d recommend them to anyone.