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Do It Right the First Time!

Energy-Saving Insulation in San Diego

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

EXCELLENT
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Based on 152 reviews
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Andrew Myers profile picture
Andrew Myers
28 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
I had a great experience working with Advanced Insulation Systems. John and Mathew were both professional, knowledgeable, and easy to communicate with throughout the process. They took the time to understand what we needed and helped us find a practical solution that worked within our budget. The team was responsive, worked quickly, and did a quality job. I appreciated their straightforward approach and attention to detail. Would definitely recommend them to anyone looking for insulation work.
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tom leedy profile picture
tom leedy
21 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
The team was courteous, professional and did really good work.
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Victoria Fuller profile picture
Victoria Fuller
18 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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 profile picture
Zion Zhang
2 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Very good service! They clean everything after work!
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Jane Lin profile picture
Jane Lin
29 August 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Excellent job well done.
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Nic R profile picture
Nic R
24 August 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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 profile picture
Joe Bobadilla
15 August 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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 profile picture
Jon Van Sicklen
14 August 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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 profile picture
Jessica McDermott
11 August 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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 profile picture
Hoke Rose
5 August 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Guys did an awesome job in every aspect. I will hire them again. Highly recommend!

In-Wall Insulation Services

Spray Foam insulation

Spray Foam Insulation

Spray foam insulation is an energy-efficient material that expands on application to fill gaps and create an airtight seal, providing excellent thermal insulation and reducing energy costs.
Injection Foam Insulation

Injection Foam Insulation

Injection foam insulation is a high-performance solution that’s injected into wall cavities to enhance insulation in existing structures, filling gaps to improve energy efficiency and soundproofing.

Why Isn’t Your Home Maintaining the Right Temperature?

If your home struggles to stay comfortable, it’s likely due to temperature regulation issues, often caused by inadequate insulation and ventilation. Your attic, in particular, can act as a heat trap, affecting your home’s climate control year-round. During warmer months, attics can reach extreme temperatures, while in cooler months, they allow heat to escape, leading to energy inefficiency.

If your existing insulation is of poor quality, addressing this is a natural first step. However, effectively solving this problem involves cooling the attic as a whole. Strategically placed insulation can drastically lower attic temperatures during hot months and prevent warm air from escaping in cooler months.

Insulating your attic floor will help slow heat transfer into the living areas below but won’t impact the attic’s own temperature. Heat from the sun beating down on the roof raises the attic’s temperature significantly. Per Title 24 New Building Code, many modern construction projects now call for insulation to be installed within roof rafters to address this issue directly.

By adding insulation to your roof rafters, you can prevent heat from entering or escaping, effectively transforming your attic into a barrier against external temperature fluctuations. In summer, this stops heat from transferring through the roof before it enters the attic, reducing the “oven effect” above your home. In winter, it helps trap warm air inside, better regulating your home’s temperature.

With improved temperature regulation, your home will require less energy to heat or cool, helping you save on energy bills and enjoy a comfortable living environment, no matter the weather outside.

Attic & Crawlspace Services

Fully Clean & Sanitized Attic

Fully Clean & Sanitize Attic

Thoroughly clean and sanitize your attic to eliminate harmful bacteria and contaminants left by rodents.
Replace Insulation & Damaged Materials

Replace Insulation & Damaged Materials

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

Air Sealing

Seal gaps and cracks in your attic to prevent energy loss and improve indoor air quality.
Attic Insulation & Roof Rafter Insulation

Roof Rafter Insulation

Improve energy efficiency and maintain consistent temperatures by insulating your roof rafters for year-round comfort.
Attic Fan & Whole House Fan Installation

Attic Fan & Whole House Fan

Enhance air circulation and reduce cooling costs with expertly installed attic and whole house fans.
Air Sealing

Air Sealing

Seal gaps and cracks in your attic to prevent energy loss and improve indoor air quality.
dormer-vent

Attic Ventilation

Ensure proper airflow in your attic to regulate temperature and moisture, protecting your home from damage.
Radiant Barrier

Radiant Barrier

Reflect heat away from your attic with a radiant barrier, reducing cooling costs and improving energy efficiency.
Attic Insulation, Roof Rafter Insulation, & Duct Installation

Duct Work

Optimize your HVAC system with professionally installed and sealed ductwork, ensuring efficient airflow and temperature control.
Advanced Insulation System
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