Over 5000+ Happy Clients
Stronger Comfort
Cleaner Air
Real Savings
Drafts in certain rooms. Rising utility bills. Hot spots in summer and cold spots in winter. Air that feels dusty or damp. You try adjusting the thermostat, but nothing changes because the root problem is weak insulation, air leaks, or old materials that no longer protect your home. Issues like noisy rooms, poor energy efficiency, or old attic insulation can quietly drain your budget and comfort if they are not fixed.
With OTS Chicago Insulation, you get guidance from a team built on real field experience and honest recommendations. We use proven building science, quality insulation materials, and clean installation practices to restore comfort and stop energy loss. Whether it is attic insulation, spray foam, or full air sealing, our work is designed to deliver long lasting results you can feel right away. We treat your home like our own, which is why families trust us for dependable insulation solutions.
We ensure your attic has proper insulation to reduce heat transfer and support consistent comfort. Our team focuses on performance, accuracy, and long-lasting value.
We secure crawl spaces with insulation and vapor barriers to reduce moisture, improve air quality, and prevent costly structural issues.
Spray foam provides superior sealing power and long-term durability. It fills cracks, improves efficiency, and supports healthier indoor environments.
Our soundproofing solutions reduce unwanted noise and create quiet, peaceful rooms. Ideal for workspaces, living areas, or multi-family buildings.
We improve wall insulation to control temperature, reduce noise, and cut utility costs. Proper wall insulation also helps stabilize indoor airflow.
Rim joist and basement insulation reduce drafts and moisture risks. This service strengthens your home’s insulation system from the ground up.
We seal cracks, joints, and hidden gaps to prevent energy loss. Air sealing supports insulation performance and stabilizes indoor comfort.
We wrap and insulate ducts to reduce air loss and improve HVAC efficiency. This results in better temperature control and lower energy bills.
Proper attic insulation, wall insulation, and crawl space upgrades help control temperature swings and reduce drafts.
Energy efficient insulation materials reduce wasted heating and cooling, so you keep more money in your pocket.
Soundproofing insulation, and professional air sealing help block noise, dust, moisture, and allergens from entering your living space.
“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 attic insulation, wall cavities, crawl spaces, and ductwork to find energy loss and moisture issues.
You get straightforward recommendations for insulation installation, replacement, or air sealing with zero pressure.
Our professional installers complete the project cleanly, giving you improved comfort and real insulation performance.
Local, family owned service
Sales driven quotes
Honest recommendations based on true needs
Outdated materials or shortcuts
Quality materials like spray foam and blown-in insulation
Rushed or messy installations
Clean, respectful installers
No focus on air sealing
Building science driven approach
Limited building science knowledge
Local, family owned service
With Us
Sales driven quotes
With Them
Honest recommendations based on true needs
With Us
Outdated materials or shortcuts
With Them
Quality materials like spray foam and blown-in insulation
With Us
Rushed or messy installations
With Them
Clean, respectful installers
With Us
No focus on air sealing
With Them
Building science driven approach
With Us
Limited building science knowledge
With Them
We evaluate airflow, thermal weak points, and moisture behavior to uncover problems others overlook.
Insulation materials are selected based on structure type, climate demands, and performance goals.
Work is completed with clean setups, controlled processes, and respect for your space and schedule.
Our approach targets energy loss at its source, stabilizing temperatures and reducing HVAC strain.
Every recommendation reflects real installation experience, not generic guidelines or upsell tactics.
We verify coverage and sealing to ensure insulation performs as designed after installation.
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.
We help you understand what’s happening in your home, offer the best insulation options, and complete the work with care. Better comfort, better energy efficiency, and zero stress start here.
