A Healthy Home Starts in the Attic

Attic Cleaning & Insulation Upgrades in San Diego

Fill out the form or call us at (858) 789-0215 to schedule a free inspection today.

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      EXCELLENT  
   Based on 150 reviews 
    
 
 
 
   
 
 
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   Victoria Fuller 
 18 September 2026
 
 
  This company has my highest recommendation. We replaced old insulation that was damaged by rats infiltrating our crawl space from a canyon below our house. The CEO (Matt) personally inspected our home and developed an estimate to clean and rodent-proof the home, and included options to replace the insulation with foam or fiberglass, depending on our budget. I am so glad we chose foam for a long-term solution. It is also far superior. We can already feel the difference in temperature inside. The entire team (from cleaning to installation) was knowledgable, professional, and friendly. Also, the company stands by its rodent-proofing work with a 10-year warranty. I could not be happier with them and their work!
  
 
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   Zion Zhang 
 2 September 2026
 
 
  Very good service! They clean everything after work!
  
 
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   Jane Lin 
 29 August 2026
 
 
  Excellent job well done.
  
 
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   Nic R 
 24 August 2026
 
 
  Leaving this review months after their service. We had a roof leak and during repairs found signs the attic had previously been infested with rodents. These guys came out and did great work remediating/sanitizing and installing new batting. Excellent communication all around, hard working team, and they even went the extra mile with some small requests I had at no charge. What really set them apart was when I reached back out to address a minor mistake they made which was found after they completed work, Matt immediately resolved the issue.  Genuinely impressed with these guys. This is how a business is run. Thanks Matt, Cole, and the rest of the team.
  
 
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   Joe Bobadilla 
 15 August 2026
 
 
  I worked with Advanced Insulation System to install new Insulation and drywall in our garage. Despite some minor setbacks, Matthew and his crew were able to do it right and we got an amazing transformation! Thanks to AIS for the renovations my parents are extremely happy with how things turned out!! Definitely recommend!
  
 
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   Jon Van Sicklen 
 14 August 2026
 
 
  I recently had Advanced Spray Foam insulate the attic rafters of a house I'm working on for a family member in El Cajon.   If anyone is considering the value of the material,  we had our attic temps drop from 130 on average to basically air temp outside.   Price was very competitive and the team that did the install and clean up were very respectful of the house and kept things clean. I also used the attic clean out service they offer to remove an old re-roof job that had filled the space with debris and old blow in that was full of mice remnants.  Again another team that was extra careful and did a great job. Matt and John the owners give timely status updates and the contract process was fair and no pressure.   I will use them again in the future.
  
 
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   Jessica McDermott 
 11 August 2026
 
 
  We had a smell coming from our kitchen ceiling duct after using our air conditioning system during the hot weather. Mathew came over and did a free inspection and was very thorough.  They checked everything in the attic and also inside the kitchen ducts and they didn't find anything except dust. They recommended getting a company to come out and clean the dust out of the ducts and to use a deodorizer. They did an excellent inspection and helped us resolve our issue very quickly. We will definitely use their services again and he said they also offer installing new insulation in the attic and adding sanitation to help with conserving energy.
  
 
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   Hoke Rose 
 5 August 2026
 
 
  Guys did an awesome job in every aspect. I will hire them again. Highly recommend!
  
 
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   Lindsay Darwell 
 3 August 2026
 
 
  I can’t recommend this company enough. I was having trouble keeping my house cool even after recently paying another company to install attic insulation. Instead of trying to sell me on more work, they took the time to thoroughly inspect my attic, checked multiple areas, and even drilled a small inspection hole to verify whether insulation had actually been installed. It turned out there wasn’t insulation where there should have been. What impressed me most was their honesty. They encouraged me to contact the original company and have them correct their mistake rather than trying to profit from the situation. They spent their time inspecting everything, explaining what they found, and didn’t charge me a dime. It’s rare to find a company that’s this knowledgeable, honest, and genuinely looking out for the customer. When I do need insulation work in the future, they’ll be the first company I call. Highly recommend!
  
 
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   Brenna Kelly 
 15 July 2026
 
 
  Extremely happy with our insulation job in our two story home. The team was professional from the first visit and offered a reasonable price for all the work required. We feel it was well worth it and would recommend the team to anyone looking to redo their insulation! - Phil & Brenna Frost

A Healthy Home Starts In Your Attic

Your attic plays a critical role in maintaining a healthy, comfortable home. Over time, dirt, debris, and poor insulation can lead to temperature regulation problems, making it harder to keep your home cool in the summer and warm in the winter. This doesn’t just affect comfort—it also leads to skyrocketing energy bills and creates a perfect environment for pests. Your attic can become a hidden haven for rodents, debris, and energy inefficiency, impacting both your comfort and your wallet. Over time, pests like mice, rats, and raccoons find shelter, while poor insulation leads to temperature regulation problems, making it harder to keep your home cool in the summer and warm in the winter. This combination not only affects your home’s comfort but also drives up energy bills, creating the perfect environment for pests to thrive.

What Separates Us?

At Advanced Insulation System, versatility is our strength. We offer the most comprehensive range of insulation and attic solutions in San Diego. Whether it’s rodent-proofing, attic cleaning, or insulation upgrades, our team provides tailored services that solve your specific needs. From complex attic issues to everyday insulation improvements, we’re equipped to handle it all with precision and care, ensuring your home stays comfortable, energy-efficient, and protected.

Don't Let the Problem Get Worse

Have you noticed strange odors or scurrying sounds from your attic? Maybe you’ve even seen rodent droppings? These are all signs of a growing rodent infestation. If left unchecked, pests will continue to contaminate your insulation, gnaw through wires, and cause damage to your home’s infrastructure. The longer you wait, the worse the damage becomes. Our professional attic cleaning services are designed to address the problem quickly, removing foul odors, rodent waste, and contaminants to restore your attic to its best condition.

Rodent droppings in your attic aren’t just unpleasant—they’re a health hazard. Infestations can spread dangerous bacteria, mold, and allergens throughout your home, compromising the safety of your living environment. At Advanced Insulation System, we provide more than just a cleaning service—we eliminate the problem at its source, ensuring your home is rodent-free and insulated properly for year-round comfort.

New Constuction Insulation Services

Expert Insulation for New Construction

Looking for reliable insulation solutions for your new construction project? Head over to our New Construction page to explore our services, from spray foam to soundproofing, all designed to maximize energy efficiency and comfort. Let us help you meet Title 24 standards and more.

Cleaning Services

Fully Clean & Sanitize Attic

Thoroughly clean and sanitize your attic to eliminate harmful bacteria and contaminants left by rodents.

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Replace Insulation & Damaged Materials

Replace contaminated insulation and repair any damaged materials to restore your attic's safety and efficiency.

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Crawlspace Decontamination

Thoroughly clean and sanitize your crawlspace to eliminate rodent waste, odors, and harmful contaminants, restoring a healthy and safe environment.

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Do it right the first time

Book Your Free Inspection

Fill out the form or call us (858) 789-0215

Our team of in-house inspectors will conduct a thorough inspection and provide you with a detailed report, ensuring we understand precisely what needs to be addressed to achieve your desired outcome.