Over 5000+ Happy Clients
Lower Bills
Lower Bills
Healthier Spaces
Uneven temperatures, rising energy bills, drafty rooms, and moisture problems often come from weak or outdated insulation. Attics, crawl spaces, and walls lose heat faster than you realize, forcing your HVAC system to work harder. Poor airflow, hidden gaps, and thin insulation layers create constant discomfort, noise issues, and lost energy every month. Many property owners do not realize the real cost of ignoring these early signs until it becomes a recurring problem.
For more than a decade, OTS Chicago Insulation has helped homeowners and businesses create comfortable, energy-efficient spaces through proper insulation practices. Every recommendation we make is based on real on-site experience, not guesswork. As a locally owned company, we focus on quality materials, clean workmanship, and delivering results that genuinely improve your home or building. When you choose our insulation services in Mount Prospect, IL, you get a team committed to doing the job right the first time.
Energy-efficient insulation reduces heat loss, stabilizes temperatures, and helps your HVAC system run smoothly, improving long-term savings.
Upgraded attic, crawl space, or wall insulation eliminates hot and cold spots so every room feels comfortable all year.
Modern insulation reduces outside noise, controls moisture, and supports better indoor air quality for a healthier environment.
“I live in Buffalo Grove, IL, and recently hired OTS Chicago Insulation to insulate my crawl space and I’m extremely happy with the results! After doing some research and calling a few companies, I chose OTS because of their professional approach and detailed consultation. Ofer, the technician who came out, was knowledgeable and explained the benefits of crawl space insulation, including how it would improve energy efficiency and reduce moisture issues in my home.It’s been a few months since the installation, and I’ve noticed a big difference. The floors on the first level are no longer cold, the air quality has improved, and our heating system isn’t working as hard. This means real energy savings!
We have 100+ 5-star reviews on
We check your attic, crawl space, walls, or ducts, then identify where insulation or air sealing is needed.
We choose the right insulation type, from spray foam to blown-in, based on performance, efficiency, and budget.
Our certified installers complete the insulation installation carefully, following safety standards and proven building science.
Honest recommendations based on your actual needs
Push generic one-size-fits-all insulation packages
Energy-efficient materials with strong performance ratings
Lower-quality materials that fail faster
Skilled technicians with real hands-on installation experience
Rushed installation with limited evaluation
Clean, respectful work inside your home or building
Minimal respect for cleanliness or property
Focus on long-term comfort, not temporary fixes
Short-term solutions that do not address deeper issues
Honest recommendations based on your actual needs
With Us
Push generic one-size-fits-all insulation packages
With Them
Energy-efficient materials with strong performance ratings
With Us
Lower-quality materials that fail faster
With Them
Skilled technicians with real hands-on installation experience
With Us
Rushed installation with limited evaluation
With Them
Clean, respectful work inside your home or building
With Us
Minimal respect for cleanliness or property
With Them
Focus on long-term comfort, not temporary fixes
With Us
Short-term solutions that do not address deeper issues
With Them
We analyze heat movement to identify insulation failures and inefficient building envelope zones.
Spray foam, cellulose, or fiberglass is applied precisely for optimal thermal resistance and durability.
Every project follows strict cleanliness and safety procedures from setup to final walkthrough.
Insulation is installed with vapor control strategies to prevent condensation and long-term damage.
Decisions are guided by years of hands-on work across varied building types.
Installations are designed to maintain energy performance year after year.
We help nearby communities with complete insulation solutions, including attic upgrades, spray foam insulation, crawl space encapsulation, soundproofing, wall and rim joist insulation, air duct insulation, and air sealing services that improve comfort, efficiency, and long-term performance.
