
Serving East Alton, IL and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Foam Co did an excellent job, very prompt, informative and priced competitively. Highly recommend!"





+15


Serving East Alton, IL and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Foam Co did an excellent job, very prompt, informative and priced competitively. Highly recommend!"





+15

Serving East Alton, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Small jobs welcome
"Why West County Insulation is the Best Choice for Your Insulation Needs When it comes to insulation, quality and professionalism matter—and that's exactly what I received from West County Insulation. Fast and Knowledgeable Service Brandon, who provided the initial quote, was timely, knowledgeable, and thorough. He explained all my options and made sure I understood everything clearly, giving me confidence in my decision. Professional and Efficient Installation The installation team, led by Andrew and Isaac, was efficient and professional. They used drop cloths to protect my home and completed the job quickly without sacrificing quality. The owner even took the time to check in after hearing about a fall I had during the job—demonstrating the company’s commitment to customer care. Great Quality at a Fair Price The insulation quality is excellent, and my home is already feeling more comfortable. With competitive pricing and outstanding service, West County Insulation offers great value for your investment. If you’re looking for reliable, professional insulation services, I highly recommend West County Insulation."

Serving East Alton, IL and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
Good Attic is a trusted attic insulation and home comfort company serving homeowners throughout St. Charles and the greater St. Louis area. We specialize in blown-in insulation upgrades, air sealing, attic cleanouts, and ventilation improvements that solve hot/cold rooms, drafts, high energy bills, and poor airflow. Our team provides honest pricing, same-week appointments, and detailed before-and-after photos so you always know exactly what you’re getting. If you want a cleaner, more comfortable, and more energy-efficient home, Good Attic delivers results you can feel immediately.

Serving East Alton, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Credit card accepted
"Local Air Duct Pros did an outstanding job! The team was professional, punctual, and very thorough. I noticed a huge difference in air quality right away. Highly recommended!"

Serving East Alton, IL and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Tim and Jeff were very fastidious in setting up, cleaning, and making sure the house was in good order when they left . We also had an Aeroseal treatment which followed with James and Connor. It did take some time to set up after the vents were cleaned and blown out, but the application of this polymer to close gaps in lthe galvinized steel ducts was remarkable."




Serving East Alton, IL and surrounding areas
In business since 2001
Free estimates
Credit card accepted
"St. Louis Insulation did a great job with insulating and ventilating both the attic and basement of our 123-year-old house in STL city. Zac was very knowledgeable and helpful and the service was affordable. The job was done quickly and efficiently. I highly recommend them for any insulation needs in the city."





+40

Serving East Alton, IL and surrounding areas
In business since 2022
Free estimates
Credit card accepted
"I’m a land lord of 72 residential properties and the biggest head ache other than common upkeep was the constant battle with roaches and insects inside the units, I had Triple B come out and put their pest control infused insulation at 10 of my properties and within 3 weeks the tenants were in shock at how affective it was, they went from seeing them everyday to hardly ever, I ended up getting them to do all my units and also my own house, this will be a must at any property I ever purchase, highly suggested for new home owners/buyers"





+1
Serving East Alton, IL and surrounding areas
In business since 1978
"He was very knowledgeable and professional. After the audit we received an estimate to correct any areas that were discovered. Unlike what we originally thought our issues were not the windows and doors. The estimate was for $4000 to add insulation to the attic, increase airflow in the attic, install foam insulation around our fireplace and throughout the basement as well as removing the attic fan and adding drywall.
The price is the estimated price for projects to be completed.
"

Serving East Alton, IL and surrounding areas
In business since 2009
Free estimates
Credit card accepted
"The fellows did a great job with this house. The work is really quite excellent, and they kept us informed with how long it would take, how it was going, and could speak in understandable sentences. They were polite and they worked very quickly.
We were amazed and how quickly they did this job, as it was perfect and not at all sloppy, which you easily see in others who are quick and sloppy. They were anything but. They cut around several outlets and exterior items on the house and that was done well. I would definitely recommend to anyone. We also cannot believe how much WARMER THE BACK OF THE HOUSE is now - especially as it faces NORTH and was quite cold for the last 15 years. We hope to be able to have them do the rest of the house as we like the insulation put in and the type and quality of siding that was used. We would recommend most definitely."





+6

Serving East Alton, IL and surrounding areas
In business since 2007
Emergency services offered
Credit card accepted
"The service didn't last. This is the fastest that soot has built up on my gas logs.
"
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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