Why Slagel Insulation Inc.?

If comfort and energy efficiency are important to you, Slagel Insulation's expert and certified spray foam insulation services are the answer you're looking for. Spray foam insulation offers a much more efficient and effective solution than traditional insulation materials. Polyurethane was originally conceived in the 1930s but didn't see widespread use as home insulation until the first user-friendly spray foam machines were brought to market in the early 1960s. If your home was built during or before the 70s, chances are you have insufficient insulation. Even today, houses are built with these types of insulation. These materials are far inferior to polyurethane foam insulation options.
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Here at Slagel Insulation Inc., we are proud to be numbered among one of Illinois' earliest spray foam insulation companies – we began spraying foam in 1975! Our spray foam insulation crew is well-trained to provide your home or commercial property with proper insulation to optimize interior comfort and temperature control. We offer the best insulation for attics, basements, crawlspaces, ceilings, and walls.

Quality

At Slagel Insulation Inc., we pride ourselves on our quality and customer service. We take great care and respect when working on our customer's property. We provide:

  • Coverings to protect your floor
  • Protection for existing windows, doorways, and ceilings
  • Ventilation during process
  • Fully enclosed workspaces to contain any mess

We aim to leave your home or commercial property better – and more well-insulated – than we found it.

Local

Slagel Insulation Inc. has been based in central Illinois since our company's inception, and as such, we know the area well and have built many long-lasting, loyal customer relationships. With roots in our local Fairbury community, we also extend our services throughout central Illinois. If you live in Pontiac, Kankakee, Bloomington, Champaign, Peoria, Streator, or surrounding cities, we can offer you some of the best, most experienced spray foam insulation services.

Services

Slagel Insulation Inc. offers a wide variety of spray foam insulation services to our central Illinois residents and business owners. Whether commercial or residential, we have the solution for you. You name it, we spray it.

  • Attics
  • Basements and crawlspaces
  • Cathedral ceilings
  • Flat roofs, Foam & roof coatings (commercial buildings)
  • New homes
  • Home remodels and additions
  • Steel buildings
  • Post frame construction​
  • Pole barns

​Slagel Insulation Inc. offers spray polyurethane foam insulation solutions for residential and commercial properties.  Contact us today for a no-hassle estimate and take a step toward energy efficiency and to comfort!   309-377-3111

Guided by Purpose. Driven by Values.

​At Slagel Insulation, our work is about more than insulation—it's about building trust, delivering consistent quality, and treating every project like it's our own. Our mission, vision, and core values reflect who we are, where we're headed, and how we serve our customers and community every day. These principles have guided us for 50 years—and they continue to shape the way we do business.

Mission Statement: "Family-owned and built on trust, Slagel Insulation Inc. delivers reliable, affordable spray foam insulation—because you deserve the best in comfort, efficiency, and savings."

Vision Statement: "To be the industry leader in high-performance insulation solutions, recognized for innovation, energy efficiency, and unwavering integrity as we grow."

Core Values:

Integrity – We uphold honesty, ethics, and transparency in all we do. Trust is the foundation of our business.

Commitment – We are dedicated to excellence, delivering quality products and services that exceed expectations.

Legacy – We create lasting value through enduring relationships, products, and business practices.

Customer-Centered – Our customers come first. We listen, innovate, and provide solutions that truly meet their needs.

Innovation – We embrace change and continuously seek new ideas, technologies, and solutions to drive progress and create value.

Teamwork – We succeed together. Collaboration, respect, and support empower us to achieve more as a team.

Equality – We foster an inclusive environment where everyone is valued, respected, and given equal opportunities to grow and succeed.