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Licensed #CC SPECIIN887, Bonded & Insured

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.

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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.

Spray Foam Estimator

Let SI Handle Your Spray Foam Insulation Install!

Spray Foam Insulation Without The HeadachesSpray Foam Insulation Without The Headaches

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. Access to our own top of the line spray foam truck 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 up to $1700 in instant rebates! We’re certified insulation contractors for PSE so if you qualify we’ll be sure to let you know.

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 projects and can even handle large industrial or commercial properties.

Insulate Metal Roofs & Steel Buildings

Insulate Metal Roofs & Steel BuildingsInsulate Metal Roofs & Steel Buildings
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 Insulation's Benefits To Last A LifetimeSpray Foam Insulation's Benefits To Last A LifetimeSpray Foam Insulation's Benefits To Last A Lifetime

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.

See More of Our Work

Spray Foam Is The Right Choice

Superior Comfort & Air Quality

  • Exceptional Thermal Performance
  • Advanced Air Isolation
  • Excellent Moisture Control

Ready To Move Forward?

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!

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