Welcome to Saint Louis Insulation

The U.S. Department of Energy's number one recommendation for reducing monthly energy bills is adding insulation - to attic spaces, ceilings, interior walls and crawl spaces. St Louis Insulation is a family owned and operated full service weatherization and insulation contractor proudly serving the entire Metropolitan St Louis area with locations in South County, Saint Peters, Belleville and Edwardsville.

St. Louis Insulation’s highly trained staff of experienced professionals are passionate about helping home owners save thousands of dollars over the life of their home through the installation of high-quality residential home insulation.

Did you know that 80% of American homes are under insulated? In fact, adding just a few inches of loose fill, blown in insulation to your attic can reduce your heating & cooling costs by as much as 40%. Why waste your money paying for utility services that you might not need? Schedule a free in-home estimate today to find out how we can help save you money & make your home more comfortable. 

Attic Insulation Services

Crawl space insulation is often overlooked. Most homeowners don't even think about adding insulation until a problem occurs. Many of the common problems associated with a home's energy loss come from these dingy areas. Inadequate or improperly installed insulation can lead to higher energy bills, mold growth and moisture problems. On the other hand a properly insulated crawl space can reduce your heating and cooling costs and make your home more comfortable in any season. In fact when your insulation job is done right,  it will be part of the conditioned area of your home. This makes it suitable for use as a storage area. It can also help prevent mold growth, moisture problems and costly repair bill in the future. 

Crawl Space Insulation & Encapsulation Services

Making your home more energy efficient can be one of the easiest and most cost effective ways to reduce your heating & cooling costs. In fact making some small, targeted improvements to the key area of your home can reduce your heating & cooling costs by as much as 40%. St. Louis Insulation has the knowledge & know how to help you identify & treat your home's most inefficient areas and make common sense recommendations for energy efficient home upgrades that will save you money and make your home more energy efficient, healthier and comfortable. 

More Info About Our Energy Efficiency Services

Saint Louis Insulation is a certified insulation contractor that specializes in installing insulation to existing homes. Our Highly trained team of professional installers has the knowledge and resources to complete any insulation project, large or small in both residential or commercial applications.

All of our services are 100% guaranteed and If your not completely satisfied with any aspect of your home insulation project, we will make it right, absolutely free.  

Ready to begin? Give us call by calling us toll free at 314-334-0153 or email us to request your free in home consultation. 

The Saint Louis Insulation Difference

St Louis Insulation offers the highest quality insulation products for your home improvement dollars - from blow-in cellulose and fiberglass insulation for your attic and walls to our premium foam insulation that can be sprayed, injected or pumped into exterior walls, crawl spaces and foundations. If your looking for a professional insulation contractor that is focused on providing great service, then the you should consider choosing Saint Louis Insulation for your next insulation job. You will be glad you did.

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Affordable Home Energy Conservation Services

Are you looking to reduce your home energy bills without paying for products or services that you might not need? Our company can help! St. Louis Insulation is a BPI Certified Insulation Contractor that specializes in helping St. Louis area home owners save money by identifying and treating your home's most inefficient areas. Unlike other area Insulation Contractors, our company uses a return on investment approach towards energy conservation. This means that we have the skills and knowledge needed to help you save energy without promoting expensive solutions that will take decades to pay for.   

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spray foam insulation can save you energy

We Specialize In The ABC's Of Home Energy Efficiency 

Attic Insulation

Cellulose Insulation in attic

Attic Services

Crawl Spaces

Crawl Space Foam

Crawl Space Services


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  • Recording Heat Loss at the House With Infrared Thermal Camera
  • Saint Louis Energy Audits
  • Radiant Heat Shield
  • Loose Fill Fiberglass Insulation in St. Louis
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  • Rigid foam board insulation
  • Rim Joist Air Sealing
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  • Inspecting for mold in a crawl space
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Explore Our Work 

Air sealing & insulating your home is arguably the most important energy efficiency upgrade  that  you can make. Without proper insulation, your home needs larger, more expensive heating and cooling equipment to keep you comfortable and that equipment needs to work harder, consuming more electricity, gas, or oil and costing you money.

Consider this. On a cold winter night, would you rather have a thick, puffy down-filled blanket or a single thin cotton sheet on your bed to keep you warm? Think of insulation as the blanket for your home? You can crank up the thermostat and keep throwing money out the window or you can pick up then phone and give our company a call. We will have cozy in no time. 

We Are The Best Insulation Contractor in Metro St. Louis

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