Spray Foam Insulation Professionals

Seattle’s Top Rated Closed-Cell Spray Foam Installers

Achieve maximum R value per inch with energy-efficient spray foam insulation installed by a trusted professional.

Fact: Air infiltration is the cause of up to 40% of a building’s energy loss!

Get An Instant Estimate

Do you know the total square feet and thickness of the area you want to insulate? Use our spray foam estimator to find out the rough cost of your project. Then submit your details to schedule an appointment.

Let Us Handle Your Spray Foam Insulation Install!

Why Specialty Insulation NW?

Applying spray polyurethane foam (SPF) properly requires both specialized skills and equipment. We have you covered in each of these areas. Our skilled spray foam contractors’ high attention to detail has earned us hundreds of glowing reviews across the web. Many local insulation companies will rent equipment for their spray foam jobs. Access to our own top of the line spray foam trucks insures consistent quality in each of our projects. Under most circumstances we can knock out a spray foam insulation install in just one to three days.

Depending who your energy provider is you could receive $1,000’s in instant rebates! We’re certified to provide insulation energy rebates for PSE and SnoPUD, so if you qualify we’ll be sure to let you know.

Certificated Spray Foam Installers

What Our Customers Have To Say

High-Performance Spray Foam Insulation

Closed-cell spray foam dramatically outperforms traditional insulation in r-value per inch, air sealing and moisture reduction. These unique benefits make spray foam insulation an ideal solution for the cool and wet Pacific Northwest climate.

Depending on what your needs are, we can outfit a single area of your home or do a complete installation covering your attic, basement, wall envelopes or crawl space. We welcome new construction spray foam installs and can even handle large commercial insulation projects.

Roof Coating

Spray foam roof coatings create a seamless, weather tight barrier resistant to leaks. Improve energy efficiency and extend the life of your roof. Perfect for Western WA’s rainy, changing climate.

Tank Coating

Protect your merchandise with spray foam tank coatings. SPF tank coatings protect water, fuel and other types of storage tanks. They provide a long-lasting layer against moisture and corrosion.

Sound Proofing

Closed-cell spray foam reduces outside noise and blocks sound transfer between rooms. It’s an effective way to quiet your home, shop, or office. While improving energy efficiency and overall comfort.

Marine Insulation

Keep your fish and crab at the right temperatures. We’ve insulated everything from fish holds to boat hulls across Western WA. Closed-cell foam resists moisture and protects against water damage.

MEP Lines

Our certified foam installers have wrapped mechanical, electrical and plumbing lines for major heavy-civil projects. Spray foam stops heat loss, resists moisture and results in fewer breakdowns.

Structural Repairs

We've used SPF to stabilize bulkheads and other types of concrete structures. Spray foam fills voids and bonds to surfaces. It adds long-lasting protection against moisture, cracks and shifting over time.

Insulate Metal Roofs & Steel Buildings

Get Lasting Climate Defense

Steel buildings and roofs are a common solution for many workshops. Their reduced cost and resilience make them popular in the NW. Our spray foam contractors have helped insulate dozens of workshops.

Spray foam is a leading solution for metal buildings, walls and roofs. It provides the ultimate climate and moisture control for this class of buildings. For most steel building projects, we’ll provide spray foam services across WA state.

Spray Foam Benefits To Last A Lifetime

Superior Comfort & Air Quality

Spray Foam Is The Right Choice

Common Questions About Spray Foam

Here are some common questions we hear from our Seattle area spray foam insulation customers.

How much does closed-cell spray foam cost?

The cost of closed-cell spray foam insulation depends on the size of the project and how much material is required. On average in Western WA, it can range from $2.50 to $5 per square foot and inch thickness. Every situation is different, which is why we provide free estimates to give you clear, upfront pricing before work begins.

Yes. Closed-cell spray foam delivers a high R-value per inch, creates an airtight seal, and resists moisture. For Puget Sound homeowners, this means lower energy bills in both summer and winter, better comfort, and protection against mold and dampness. It also lasts longer than traditional insulation, making it a smart investment.

Closed-cell spray foam expands about 1 inch for every pass. Unlike open-cell foam, it is much denser, forming a rigid, durable barrier against heat and moisture. This controlled expansion allows our team to apply it precisely to walls, attics, and crawl spaces for maximum efficiency.

Closed-cell spray foam offers an R-value of about 6 to 7 per inch, one of the highest ratings of any insulation. This means it delivers superior thermal resistance in less space, helping homes across Western WA stay cooler in summer and warmer in winter while reducing energy costs year-round.

Thickness depends on where it’s installed. In most crawl spaces and walls, 2 to 3 inches of closed-cell spray foam is enough for strong air sealing and moisture protection. Rooflines and attics often need 4 to 5 inches to meet recommended R-values for our climate. Our team installs the right thickness for your home to meet code and comfort needs.

Spray Foam Project Gallery

Home and commerical property owners aren’t the only ones to enjoy the benefits of spray foam. Our skilled team has completed major municipal infrastructure and industrial weatherization projects.

Ready For An Estimate?

Schedule a FREE inspection of your home or business and receive a spray foam insulation bid. Due to increased material and transport costs we have a $1800 minimum for all spray foam projects. If you’re unsure about the size of your project please give us a call. Thank you!