
Serving Markham, IL and surrounding areas
Approved
In business since 1985
Free estimates
Credit card accepted
"The guys who came to my house to put in insulation were very knowledgeable and professional. Great work!"


Serving Markham, IL and surrounding areas
Approved
In business since 1985
Free estimates
Credit card accepted
"The guys who came to my house to put in insulation were very knowledgeable and professional. Great work!"

Serving Markham, IL and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
"Attic Pro Insulation did an outstanding job! They contacted me 10 minutes after I entered my search information.They were professional, on time, and explained everything clearly. Highly recommend them for anyone needing quality insulation work!"

Serving Markham, IL and surrounding areas
Approved
Super Service Award Winner
In business since 1979
Free estimates
Emergency services offered
"George came out promptly and did a thorough inspection of the crawlspace and provided options on what can be done. The insulation work was performed by Jesus who also found and fixed two foundation cracks. Encapsulation was done by Juan's team and they all did a great job. They were able to perform all the work with a very narrow opening into the crawlspace and were also able to fit in the dehumidifier. After installation there was a minor issue with the dehumidifier and Craig came right away to fix it. Great experience and I'd definitely use their services in the future if need be."





+48

Serving Markham, IL and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"I am very pleased with my new windows. I used Home Genius Exteriors to do my roof, gutter protection, and now Windows. This is an absolute amazing company, my salesman brendan was very helpful, Devan the Project Manager helped make sure everything went smoothly. Walter and Mike also from production were very friendly and professional. And Shawn, the window installer was polite,knowlagable, and efficient. And even cleaned up on his way out. Next on the agenda is to get a new door taken care of. Highly recommend HGE"

Serving Markham, IL and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Even though we had a few days of rain, they continued working until they just had to stop. Sometimes being really soaked before coming down. That's dedication to doing a job."

Serving Markham, IL and surrounding areas
Approved
In business since 2002
Free estimates
Credit card accepted
For the last 15 years, Arcos Environmental Services, Inc. has been serving as a general contractor for government weatherization programs. As we have continued to grow, we have created the subsidiary Arcos Pro Services to serve as our residential division of insulation installation using the same professional and detailed work. We are committed to giving homeowners a peace of mind in regards to their home's energy efficiency. \n\nArcos is also a Nicor Gas Contractor Circle member meaning finished upgrades to your home may qualify you for up to $1,250 in rebates as well as tax incentives. Check out our website for more information!\n\n





+3
Serving Markham, IL and surrounding areas
Approved
In business since 1992
Free estimates
Credit card accepted
"The crew show up early to the job, worked very efficiently, obviously knew how to install their insulation very well! They were very courteous to me as a customer. The issues were that they did not clean up all of their mess ( which blown in insulation would have gone even further if I wouldn't have closed some doors that they left open to carpeted areas. They only swept up the wooden floor and did nothing to pick up where the insulation had blown onto the carpet."
Serving Markham, IL and surrounding areas
Approved
In business since 2007
Free estimates
With over 10 years of experience in the insulation industry, we are the service professionals you need to take care of your home or business. We handle all types of insulation projects. We will treat your home as we would treat our own. Give Spray Foam Genie a call today, we look forward to working with you!
Serving Markham, IL and surrounding areas
Approved
Super Service Award Winner
In business since 1992
Free estimates
Credit card accepted
"They were responsive to a problem that occurred during the insulation installation. They resolved it professionally to my satisfaction and I appreciated it."




Serving Markham, IL and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
At HeatLock Insulation, we specialize in high-performance insulation solutions designed to make homes and commercial buildings more energy-efficient, comfortable, and protected year-round. Based in Illinois, our team delivers professional insulation services with a focus on quality craftsmanship, reliability, and long-term energy savings.\n\nWe provide expert installation of spray foam insulation, attic insulation, wall insulation, crawl space insulation and air-sealing systems forth residential and commercial properties. Whether it's a new construction project, renovation, or energy-efficient upgrade, HeatLock Insulation helps seal air leaks, regulate indoor temperatures, reduce noise, and lower monthly utility costs.
Local and federal rebates are available for insulation installation, which can significantly reduce your overall costs. Many utility companies offer incentives or rebates to homeowners who improve their home's energy efficiency. Contact your local energy provider or government agencies to learn about available programs in your area, and consult with a professional insulation installer to maximize your savings.
It's not necessary to remove old insulation before adding new insulation, as long as the existing insulation is in good condition—dry, free of mold, and not damaged. Adding new insulation on top of old insulation can improve your home's energy efficiency by increasing the overall R-value. However, if the old insulation is wet, moldy, or damaged, it's best to remove it before installing new insulation to prevent potential health risks and ensure optimal performance.
Insulating a house takes between five and twelve hours for batts or boards, and two to five hours for spray foam or blown-in insulation. The exact time depends on the size of your home, the type of insulation, and the accessibility of the areas being insulated. Keep in mind that projects may take longer if old insulation needs removal, if there's a larger square footage, or if spaces are difficult to reach.
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