Looking for the best insulation contractor in Collinsville, Illinois? Then look no further. St. Louis Insulation is the area's most preferred retrofit insulation contractor. 

 Collinsville, Illinois is known for great high school basketball, the Ketchup Bottle and of coarse the Italian Fest but it's not known for having homes that are as energy efficient as they could be. In Collinsville, you have a mixture of older homes and newer homes, each with its own unique characteristics. From Collinwood to downtown Collinsville almost every homeowner in the Collinville area could benefit from having their home insulation upgraded. If your thinking about adding insulation to your home you should call St. Louis Insulation before you do anything else.  You will be glad you did. 


Get A Free In-Home Estimate

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If you live in or around Collinsville then getting a free, estimate is fast and extremely easy to do.To make things as easy as possible we offer our convenient online scheduling feature which allows you to set up an appointment anytime you wish. If you would prefer to speak with a live customer support representative, you can do that as well by simply giving us a call @ 314-334-0153. Anyway you choose, you can rest assured that you will be getting the most prompt and professional insulation contractor available. 


 3 Easy Ways To Schedule a Free In-Home Estimate

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Call (314)334-0153

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The St. Louis Insulation Difference 

Why Insulate

The owners of St. Louis Insulation were born and raised in Collinsville, Illinois. That's why it plays such an important role in their daily lives.  St. Louis Insulation has a location based in Glen Carbon, IL. Through this location our company proudly provides quality home insulation services to metropolitan St. Louis area homeowners. Recognized as a leader in the retrofit insulation industry, St. Louis Insulation has the knowledge and experience needed to help solve even the most complicated problem. From a simple project like adding insulation to your existing home to more complex jobs like crawl space encapsulation & air sealing, St. Louis Insulation can get your home insulation project done right and on budget. 


Why Choose St. Louis Insulation? 

We offer the best customer service in the area and pride ourselves on doing whatever it takes to earn and keep your business. Providing good customer service isn't always easy and running a business that provides exceptional customer service takes constant vigilance and dedication. In fact, we are so confident that you will receive exceptional service, we offer our customers our 100% Service Guarantee

Insulation has very specific applications. Choosing the wrong insulating materials could do more harm then good and result in costly repair bills. That's why it's so important to choose the insulation materials that are right for your insulation project. If the insulation you purchased isn't installed right, you could risk voiding the manufactures warranty. Our certified installers only use the best insulation materials available and you never have to worry about how those materials are installed. Our work is guaranteed to be installed according to manufacture specifications or we will make it right free. 

You no longer have to choose between saving money and getting a good value from a reputable insulation company. With St. Louis Insulation you can have the best of both worlds. While we strive to keep our labor rates low, we are not "cheap" when it comes to quality service that you can depend on. We take great pride in providing our customers with affordable insulation services that are backed by our 100% customer satisfaction guarantee. Our commitment to quality combined with our dedication to keep our labor costs low makes St. Louis Insulation an easy choice. 

Top Services Requested in Collinsville, Illinois

Spray Foam 56%
Air Sealing 65%
Attic Insulation 78%
Home Energy Use 85%
Soundproofing 42%

Proudly Servicing Collinsville & Surrounding Areas


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  • We called St. Louis Insulation because we wanted to make our home more energy efficient. We scheduled one of those Home Energy Evaluations and were surprised by the results. Chris and his team showed up at our door with handful of sophisticated equipment and spent several hours taking measurements and crawling around the attic. Once they were done, they went...
  • St. Louis Insulation did a great job insulation my older home. They insulated the attic, air sealed my rim joists and added a hot water heater blanket for added savings. They were neat, clean and completely professional and we noticed the difference almost immediately. Chris was a tremendous help and provided exceptional service throughout my experience.
  • Hi my name is Matt and I was born and raised in Collinsville, Illinois. I hired St. Louis Insulation to upgrade my attic insulation. Back then we were first time homeowners, we had a new baby and we needed to reduce our heating and cooling costs without spending a ton of money. I called a couple out of town contractors...