Easy & Efficient Basement Insulation For Sale In California

Continuous insulation made simple for Basements!

InSoFast Panels for basement insulation is the fastest and easiest way to frame and insulate your basement. Whether you are an experienced contractor or a first-time DIY’er, InSoFast panels are the right choice for your project.

Built-in drainage channels on the back of the panels control any unexpected moisture that will eventually penetrate basement walls to minimize moisture damage and electrical raceways make electrical installation a breeze.

The built-in insulated studs are not only a strong attachment point for finishes, cabinets or even TV’s, but also allows the panels to insulate continuously without thermal bridging. This means less insulation is required by code and will outperform cavity insulation.

InSoFast panels are constructed with inorganic materials that will never mold, rot, rust or decay, making it the best choice for moisture prone basements in California!

Brochures

InSoFast Panels Brochure

Making Basement Insulation Easier In California!

Why Settle for Foam Board? Upgrade to InSoFast Panels For Your Basement.
InSoFast Panels do more than insulate—they integrate framing, moisture control, electrical raceways, and solid attachment points into one easy-to-install solution. Skip the extra steps and get a smarter, faster, and more durable way to insulate your basement and eliminate that musty smell!

Faster Installs, Lower Labor Costs
Skip the framing and complex assembly. Our
engineered panels lock together for a streamlined,
DIY-friendly installation using tools you already have
while saving time and labor.

The Smarter Insulation Solution
From DIYers to pros, our all-in-one panels simplify
insulation. Built-in electrical raceways make rough-in
wiring easy, while the pre-engineered design eliminates
extra materials, tools and guesswork.

Moisture & Mold Resistant for Lasting Durability
100% made from breathable inorganic material, InSoFast panels will never mold, rot or rust. The panels also incorporate a drainage plane on the back side of the panels that quickly drains any moisture that comes through the wall.

Engineered Flood Resistance
InSoFast Panels are not damaged by flood water,
and, when coupled with flood-resistant finishes,
can eliminate flood damage by quickly draining
any moisture from the wall.

Code-Compliant & High-Performance
With high performance continuous insulation, InSoFast Panels
offer Class A Fire Ratings, exceptional holding power,
and long-term durability that traditional foam board
insulation can’t match.

Continuous Insulation
Designed to eliminate thermal bridging, InSoFast
Panels provide continuous insulation that maximizes
energy efficiency and home comfort.

For Homeowners

Energy Savings: About one third of energy loss in an average home happens through the basement, so insulating the basement will reduce energy costs.
Durability: InSoFast Panels won’t rot, rust, or mold, ensuring long-lasting protection for your home.
Comfort: Enjoy consistent indoor temperatures in your basement and better air quality year round.
Stop Condensation: Insulating basement walls will stop condensation from forming on the walls, the leading cause of that musty smell.

For Contractors

Faster Installation: Easy adhesive attachment cuts framing and insulation labor by about half.
Cost-Effective: Including install cost, InSoFast Panels are less expensive than traditional framing and insulation methods.
Code-Compliant: Engineered to meet or exceed building codes for hassle-free approvals.

Build Smarter Basements in California With InSoFast!

The feature-rich InSoFast panels make basement finishing easy. Whether you’re a
homeowner, contractor, or DIYer, InSoFast provides a faster, more efficient way to build better.

Benefits of EPS Foam:
• EPS is an inert foam, meaning there is no blowing agent,
making it environmentally friendly and allowing it to
maintain its R-Value long-term unlike other types of
foam
• EPS is semi-permeable, allowing inward drying of
moisture
• EPS is recyclable
• Less expensive than other types of foam

UX-2.0

Panel Thickness	2”
Panel R-Value	R-8.5
Box Coverage	40sf
Qty Per Box	5

EXi-2.5

Panel Thickness	2.5”
Panel R-Value	R-10.5
Box Coverage	40sf
Qty Per Box	5

MAX-3.75

Panel Thickness	3.75”
Panel R-Value	R-15.9
Box Coverage	48sf
Qty Per Box	6

Shop InSoFast Panels

Full MAX basement install

Resources

Installation Resources

Product Information

Product Data Sheet

Installation Details

Detail Library

Learn More About Why InSoFast Simply Works

Panel Features

How Strong is the InSoFast Stud?

Can InSoFast Really Hold The Weight? We understand the initial concerns people have in learning our panels’ structural framing is made of plastic…and that it’s designed

Exteriors

Super Insulated Mountain Cabin

InSoFast panels retrofit old homes by installing over existing siding, adding continuous insulation without demolition. Their built-in attachment points and moisture channels improve energy efficiency and durability with minimal disruption.

Blog Posts

Why Rainscreen Installation over Exterior Insulation Matters

Rainscreens matter. InSoFast panels feature built-in rainscreen technology, creating a continuous drainage plane that helps manage moisture and prevent trapped water behind the insulation. Reduces the risk of mold, rot, and structural damage, and ensures a longer-lasting, healthier wall system.

What Others Are Saying About Their Basement Insulation

“I finished my basement remodel – many months ago. The installation was so easy. It took approximately 2 weekends to install and sheetrock. The basement had 2 x 4’s on their sides with paneling over top painted an ugly color. We demoed this first, then applied the InSoFast panels. We sheet rocked over the panels and painted. This WAS so easy! Our basement was always cool, but we’ve lowered the temperature by at least 10 degrees. In fact, we don’t use the A/C in the basement at all (been 100 outside for weeks). Our house was built in 1964. Love the product!”

-Chris

“InSoFast was SO Handy. A neighbor is having her basement finished. I was laughing watching all the stuff they are lugging in for the project! InSoFast was SO handy to just slide the lightweight boxes down the stairs. I did all the EX Panels by myself in 10 hours. They have a good 6 guys working on it for days so far…suckers!”

-Sarah

“I didn’t believe it was the same cost as framing and insulation, so I had to figure out the framing and insulation myself. It was virtually the same. I ordered the InSoFast had it shipped directly to my home. I didn’t have to make multiple trips to the lumber yard or worry about loading framing lumber in my vehicle. By myself it took about 6 to 8 hrs to install the panels. InSoFast is an awesome product!”

-James

“You were so helpful to me when I needed to finish my basement floor. I could not believe how easy and effective this product is. I’m sixty-three years old and I was able to install InSoFast throughout my entire basement, large room, bathroom, hallway and mud room by myself in one day. Ed worked out the layout and emailed me the hand-drawn plan and away I went. Every one of the workers from electrician to drywaller and plumber could not get over the product and the service that went with it. Thank you again for all your help.”

-Nancy

Get the perfect insulation for your basement in California!

Transform your basement in California into a comfortable, energy-efficient space with ease using InSoFast Panels. Whether you’re converting your basement into a home gym in Los Angeles, a cozy guest suite in San Francisco, or a dedicated office space in Sacramento, our easy-to-install panels give you full control over your project—no special tools or complicated framing needed.

With built-in insulation, framing, and wiring channels, our panels help you save time and space while providing a professional, polished finish. No matter where you are in California, our kits ensure your basement is transformed into a functional, high-performance area that stays comfortable, even in the state’s diverse climate. Whether you’re in the warm, dry areas of the desert or the cooler coastal regions, our insulation helps you maintain energy efficiency year-round. Take the next step and bring your vision to life with confidence!

Learn more about California...

If you’re looking to make your California home more energy-efficient, basement wall insulation is an excellent investment. Insulating your basement can help regulate temperature, reduce energy bills, and prevent moisture problems that lead to mold or mildew. Whether you’re building a new home or renovating an existing one, effective basement wall insulation in California ensures a comfortable, healthy living space. Our insulation solutions are tailored to the state’s diverse climate, offering long-term benefits to homeowners.

California is one of the most iconic and diverse states in the United States. It became the 31st state in 1850, following the Gold Rush, which led to rapid population growth and economic development. Its diverse geography includes beaches, mountains, deserts, and forests, contributing to its reputation as a place of natural beauty. The state’s economy is one of the largest in the world, driven by industries such as technology, entertainment, agriculture, and tourism. It is home to major cities like Los Angeles, San Francisco, and San Diego.

Popular attractions in California include:

Yosemite National Park: Known for its stunning granite cliffs, waterfalls, and giant sequoia trees, Yosemite is a nature lover’s paradise.
Disneyland: The iconic theme park in Anaheim that brings Disney stories and characters to life with thrilling rides and experiences.
Golden Gate Bridge: This world-famous suspension bridge in San Francisco is one of the most photographed landmarks in the world.
Lake Tahoe: A breathtaking alpine lake on the California-Nevada border, perfect for skiing, hiking, and water activities.
Sequoia National Park: Home to the giant sequoia trees, including the largest tree on Earth, General Sherman.
Universal Studios Hollywood: A movie-based theme park offering thrilling rides, live shows, and behind-the-scenes tours of film sets.
Big Sur: A rugged stretch of coastline along California’s Highway 1, offering dramatic cliffs, redwood forests, and stunning views of the Pacific Ocean.
Santa Monica Pier: A family-friendly oceanfront amusement park featuring rides, an aquarium, and beautiful beach views.
Napa Valley Wine Country: Famous for its world-class vineyards, Napa Valley offers wine tasting, gourmet dining, and scenic landscapes.
San Diego Zoo: One of the most famous zoos in the world, featuring a vast collection of animals from around the globe and immersive exhibits.

Areas we serve in California...

We serve all cities in CA, including:

Los Angeles, San Diego, San Jose, San Francisco, Fresno, Sacramento, Long Beach, Oakland, Bakersfield, Anaheim, Stockton, Riverside, Irvine, Santa Ana, Chula Vista, Fremont, Santa Clarita, San Bernardino, Modesto, Fontana, Moreno Valley, Oxnard, Huntington Beach, Glendale, Ontario, and many more!

And all counties in CA, including:

Alameda, Alpine, Amador, Butte, Calaveras, Colusa, Contra Costa, Del Norte, El Dorado, Fresno, Glenn, Humboldt, Imperial, Inyo, Kern, Kings, Lake, Lassen, Los Angeles, Madera, Marin, Mariposa, Mendocino, Merced, Modoc, Mono, Monterey, Napa, Nevada, Orange, Placer, Plumas, Riverside, Sacramento, San Benito, San Bernardino, San Diego, San Francisco, San Joaquin, San Luis Obispo, San Mateo, Santa Barbara, Santa Clara, Santa Cruz, Shasta, Sierra, Siskiyou, Solano, Sonoma, Stanislaus, Sutter, Tehama, Trinity, Tulare, Tuolumne, Ventura, Yolo, Yuba, and other surrounding areas.

Other areas we serve...

We sale and ship all our insulation throughout the United States, including: