How much does spray foam insulation cost?

Spray foam insulation pricing depends on factors like the type of foam (open-cell or closed-cell), the size of the project, and how easy the space is to access. On average, you can expect to invest between $2.50 and $7.00 per square foot. We’re happy to provide a free, detailed quote so you know exactly what to expect.

How should I budget for spray foam insulation?

Spray foam is one of the best long-term investments you can make for your home or building. When budgeting, consider upfront costs and long-term savings—spray foam can cut energy bills by 30% or more. Many customers prioritize key areas (like attics or basements) and expand from there as their budget allows.

Is spray foam insulation safe?

Yes—when installed by trained professionals like our team at Erickson Spray Foam, it is completely safe. Once cured, spray foam insulation does not emit harmful gases and contributes to improved indoor air quality by sealing out dust, pollen, and pollutants.

Where can spray foam insulation be used?

Spray foam insulation is incredibly versatile. It can be used in walls, attics, basements, garages, under concrete slabs, between floors, on roofs, and even in hard-to-reach spaces. We’ll help you choose the best areas to insulate for maximum comfort and savings.

What are the benefits of spray foam insulation?

Spray foam provides outstanding insulation and air sealing in one application. It helps lower energy bills, improves indoor comfort, reduces drafts, controls moisture, and can even help deter pests. Its long lifespan makes it one of the best investments for both new builds and retrofits.

How much can I save on energy costs with spray foam insulation?

Homes and buildings insulated with spray foam can see energy savings of 30–50% compared to those with traditional insulation. Because spray foam creates an airtight seal, your HVAC system works more efficiently, reducing heating and cooling costs year-round.

How does closed cell spray foam work?

Spray foam insulation works by creating a physical seal against moisture and air. Non-absorbent and able to repel even large leaks, spray foam insulation won’t ever become damp, making it super-long-lasting and cost-effective. Additionally, because spray foam insulation expands to fit the exact shape of your walls and flooring it creates a seal that protects cracks and gaps from accumulating moisture.

What are the benefits of closed cell spray foam?

Closed cell spray foam insulation is the best option on the market for both commercial and residential construction projects. Properly installed spray foam provides superior protection in a number of areas. Due to its unique structure and ability to expand and fill even small cracks and gaps, spray foam insulation is the ultimate solution for drafty, leaky, chilly buildings that cost a fortune to keep warm. Utilizing closed cell SPF can eliminate the need for a vapor barrier.

What makes closed cell spray foam superior to traditional insulation?

The difference between spray foam insulation and more traditional forms of insulation like fiberglass or cellulose is that spray foam insulation is an air barrier and thermal barrier all in one (with closed cell spray foam even offering a moisture barrier as well). This means that spray foam insulation does the job of providing insulation and air sealing with one product Traditional forms of insulation do not provide any barrier to the flow of air. 

Is closed cell spray foam safe?

Spray foam is safe. Some people can be sensitive to the fumes that come from the installation process. This process is known as off-gassing, which is why we recommend that occupants vacate the home once the spraying has begun and for a period of 12-24 hours after it ends. This will allow for the foam to fully off-gas, and afterwards the home will be completely safe to live in.

Will my energy bills be lower if I use closed cell spray foam?

You may be able to downsize your heating and air conditioning equipment. You will save on your heating and cooling bills. Many studies suggest that homes insulated with spray foam use up to 40 % less energy than homes insulated with conventional insulation.

What are the structural benefits of closed-cell spray foam insulation?

Because of its rigid nature and ability to adhere to many materials, closed cell spray foam can provide structural enhancement to framed buildings. Racking strength of walls, as well as uplift strength of framed roof decks can be significantly increased with the addition of just 2-3 inches of foam.

How does open-cell spray foam work?

Open-cell spray foam expands rapidly to fill cavities and seal leaks. Its soft, flexible structure creates an effective air barrier while allowing some vapor permeability—making it great for interior walls and soundproofing applications.

What are the benefits of open-cell spray foam?

Open-cell spray foam provides excellent air sealing, sound dampening, and insulation at a lower cost than closed-cell foam. It’s ideal for walls, attics, and floors where you want to improve comfort, energy efficiency, and indoor air quality.

How does open-cell spray foam compare to fiberglass insulation?

Unlike fiberglass, open-cell spray foam expands to fill gaps and cracks, providing a continuous air barrier. This results in better energy efficiency, fewer drafts, and improved soundproofing—all in a single product that outperforms traditional batt insulation.

Is open-cell spray foam safe?

Yes, open-cell spray foam is safe once properly installed. While the foam is being applied, the area should be vacated, and after 12–24 hours of curing and off-gassing, it’s perfectly safe to occupy. We follow all recommended safety protocols during installation.

Will open-cell spray foam help lower my energy bills?

Absolutely. Open-cell spray foam helps stop air leakage, which can lead to significant energy savings—especially when combined with other insulation upgrades. Many property owners see heating and cooling costs drop by 30% or more.

Does open-cell spray foam provide any structural benefits?

While not as rigid as closed-cell foam, open-cell spray foam still adds a degree of strength to wall assemblies by adhering to surfaces and helping reduce movement. It also significantly enhances the overall air-tightness of the structure, which can contribute to longer-lasting building performance.