High Quality Spray Foam Insulation Services in Sandpoint

We provide cutting edge spray foam insulation solutions for all of your residential and commercial needs within Kootenai and Bonner County.

Who Are We?

Spray Foam Insulation Contractors With Over 50 Years of Experience.

With so much time in the insulation industry, you can be sure that we have the knowledge and expertise necessary for your project. We’ve been installing spray foam insulation products in Sandpoint and the greater Idaho Panhandle region for over half a decade.

We’re a local company with a tight-knit team, which means you get the attention and dedication your project deserves.

Get A Quote!

Why Choose Spray Foam?

  • Best Performance: Spray foam insulation is a revolutionary material that has been shown to perform better than any other type of insulation available on the market.
  • Long-lasting: Spray foam insulation is meant to last for the life of the structure. Unlike fiberglass or cellulose, you’ll never have to replace it.
  • Air Seal: Spray foam has the ability to form an impenetrable air seal, allowing you to achieve a complete building envelope within your structure.
  • Moisture Regulation: Polyurethane foam is the only insulation material that is completely impervious to moisture penetration. Spray foam can be effective to completely seal out dampness and prevent mold and mildew.
  • Tax Advantages: In addition to all the physical benefits associated with spray foam, use of it in your home or business may allow you to benefit from tax incentives. This is due to its high energy efficiency.


A Few Of Our Areas Of Expertise:

Residential Insulation

We handle all types of residential applications of spray foam insulation, from new builds to remodels. We’re happy to insulate your home all the way from the basement to the attic. Spray foam insulation is a great way to increase the comfort of your living space while saving you money on your utility bill throughout the year.

Commercial Insulation

Polyurethane foam is great for commercial spaces. It can increase the functionality of your office or warehouse while also adding to the bottom line by decreasing overall energy expenditures. We understand the unique needs of businesses in Sandpoint and North Idaho and work closely with business owners to craft solutions that will meet them.

Pole Building Insulation

We specialize in the insulation of shops, barns, and pole buildings. These structures are notorious for their wild fluctuations in interior temperatures and therefore stand to reap major benefits from the application of spray foam insulation. Get more use out of your pole building during the hot summer and frigid winter by installing a few inches of spray foam.

Why Choose Us?

4Evergreen Insulation has been developing sustainable spray foam insulation for homeowners and businesses alike for more than 50 years. We are familiar with the unique challenges presented by the harsh climate here in the Idaho panhandle as well those put forth by construction codes in Kootenai County. 


Our small team is always looking to give your project the care and attention that it deserves. The fact that we are a small, locally owned company means that we have resources to be personable, unlike some other large corporate multi conglomerate construction companies out there. We always strive to deliver results, and we’re sure that our personalized insulation installations will leave you and your budget satisfied.

Free Estimates

We understand that you want to shop around, ensuring that you get the best price and the best services. We are always happy to deliver no-hassle, no-obligation estimates to our customers. We prefer to come out and inspect the job site before we do any work, or agree to a contract. It’s only after we have all the details that we feel comfortable giving an estimate for our services.

Customer Satisfaction

Installing spray foam insulation is only part of what we do. Collaborating closely with our customers to ensure that they feel satisfied with our work is equally as important as completing the work itself! We remain dedicated to customer service, and pledge to keep our communications clear and concise throughout the project so that you know you’re in the right hands throughout the process.

Experienced Crew

Our success is no accident, it’s the result of a dedicated team with years of experience in the field of spray foam insulation. We’ve got all the tools and the know-how to tackle any of the challenges that may be brought forth by your specific project. We know the ins and outs of the spray foam insulation industry and are knowledgeable about all the latest developments in the field, as well as any legal red tape that may affect your project. 

Custom Installation

Every project has its own unique set of requirements and challenges, and as such we don’t believe in a cookie cutter approach. Every one of our spray foam projects is custom crafted to fit the specific requirements of each situation. Our commitment to a well thought out and custom tailored approach is aimed at delivering the most cost effective and energy efficient option available.

What Our Customers Say About Us

Keith was quick to schedule a visit to the job site and our quote was nearly 10k below the North Idaho Co.
Valued Customer
Super responsive, professional, and thorough. I appreciated the extra attention to detail and the clean up looked great. Totally would recommend!
Valued Customer
Responsive, Quick scheduling and reasonable pricing. Professional workers very clean and efficient.
Valued Customer

Are You Ready To Experience What Spray Foam Can Offer?

Insulation is an integral component of any structure. Not only does it do the important work of regulating the temperature of your building, but the right insulation can come with many other benefits as well. The quality of the insulation material you choose can make a difference of hundreds of dollars on your monthly utility bill, with the potential to save you thousands over the course of a single year.

Spray foam is the best insulation material known to man, boasting the highest R-value compared to others such as fiberglass or cellulose. An addition to being the best performing insulation material available, spray foam insulation comes along with the added benefits of creating a complete air seal. This means that spray foam has the potential to protect your home from the infiltration of mold and mildew, as well as air and noise pollution.

Call Now For A Free, No-Obligation Quote!

Our Work

The Most Environmentally Friendly Insulation

At one time, spray foam had a reputation as being bad for the environment to the presence of greenhouse gasses within the blowing agent used in the installation process. We are excited to share with our customers that this in no longer true. In fact, spray foam is now among the one the most environmentally friendly choices of insulation available. 

This due in part to the reformulation of the foam and its propellant to no longer contain greenhouse gasses, and therefor no longer contribute to global warming. We use Foam-Lok 2000-4G foam which is the first of its kind in the fight against climate change, and has been shown to emit 99.9% fewer greenhouse gasses when compared to other types of polyurethane spray foam. To further reduce environmental impacts, this variety of spray foam contains 85% recycled materials. 

In addition, spray foam is intended to last the lifetime of the structure in which it is installed, which reduces the amount of insulation that ends up in landfills. This is in contrast to other insulation types which need to be replaced every 10-20 years. All these amazing environmentally friendly attributes of spray foam come together to help you feel good about installing spray foam in your home or business.