*The Angi rating for Insulation Service companies in Hazelwood, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
*The HomeAdvisor rating for Insulation Service companies in Hazelwood, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
Last update on January 17, 2026
Serving Hazelwood, MO 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 Hazelwood, MO 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 Hazelwood, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Excellent customer service thru the whole process and job was done 100% to our satisfaction. I would recommend any one to I Foam company for their insulation projects, thanks to the manager/owner and staff of I Foam.b"
+11
Serving Hazelwood, MO and surrounding areas
In business since 2001
Free estimates
Credit card accepted
"Chris with St. Louis Insulation went above and beyond, he dispatched Brian out to inspect our insulation as we thought it was getting wet on the same day we called. Ultimately it was determined we did not have an issue. If an issue ever does come up we will be calling Chris with St. Louis Insulation. Thanks, Russ"
+40
Serving Hazelwood, MO 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 Hazelwood, MO and surrounding areas
In business since 1978
"So far, so good. The work was completed quickly and on time. My house is noticably more comfortable. Hopefully my electric and gas bills will be much more under control since the work was done. Paul Peterson seems to be very trustworthy and knowledgeable about building, budgets, and insulation.
"
Serving Hazelwood, MO and surrounding areas
In business since 2009
Free estimates
Credit card accepted
"The BATH UPSTAIRS had a window that needing bracing, a bath that had black mold behind the horrible VINYL wall, and had to be insulated with MOISTURE proof materials and RE-TILED - the walls, under the window and behind the tub and around the laundry chute opening. The Downstairs Bath also needed the window braced and tiled as it was falling and splitting from the ceiling due to POOR WORKMANSHIP by someone NOT on Angies List back in 2003!! SO, Siding Repair Systems - They did it all, with their contractor Thomas Morton. What a really fantastic job - on BOTH these Bathroom windows, Tiling and securing/supporting. EXCELLENT WORK!! Clean and neat - it looked like they had a MAID SERVICE come in and clean up after them. Honestly. So neat and clean they were. Thanks for a Really good job. "
+6
Serving Hazelwood, MO and surrounding areas
In business since 2024
Free estimates
Credit card accepted
"They did a great job with our insulation. Very professional and efficient! Highly recommend them!"
+2
Serving Hazelwood, MO and surrounding areas
In business since 2007
Emergency services offered
Credit card accepted
"Gave extra attention to fireplace. Thorough cleaning.
"
Serving Hazelwood, MO and surrounding areas
In business since 2004
Free estimates
"Al and his partner were setup and working within 10 minutes of getting to our house. What I appreciate about Al is that he notices little things that need to be done and just does them (recaulking the bathtub when he was working in the bathroom, using left over concrete patch from the foundation to fill in a spot in the driveway that was broken) - simple stuff that adds little or nothing to the bill but tells me he's paying attention and that he cares. I have had Al work on several projects now, and to be honest, I don't even bother calling anyone else.
"
When choosing a professional insulation installer, consider asking these questions to determine the best fit.
Will you address air leaks in my house?
Can you provide an R-value (heat resistance) fact sheet?
What kind of insulation will work best for my home?
How do you handle signs of a water leak?
Are you licensed and insured?
Can you provide customer references?
The best type of insulation for your home depends on what you need, so the answer will depend on your specific situation. If you’re building a house, structural panels are easy to install during the building process in addition to being the most energy efficient type. If you live in a warm climate, reflective insulation may benefit you more as it costs less than other insulation types. And for standard attics, loose-fill, spray foam, or blown-in insulation work well.
If you plan to heat or cool your garage, you’ll need to insulate the garage ceiling. Insulating your garage ceiling will make your garage much more energy efficient and save on heating and cooling costs. Not only does insulation make your garage more energy efficient, it helps reduce noise and can extend the life of your garage roof. You can use fiberglass, cellulose, mineral wool, or spray foam insulation for this project.
In some cases, you may not have enough insulation to properly regulate your home’s temperature. Watch for a few signs your home needs more insulation, such as:
High heating and cooling bills
Uncomfortable room temperatures
Ice dams on the edge of your roof
Roof leaks
Cold floors and walls
Freezing pipes
Temperature fluctuations
Visibly low insulation
Noise problems
Pest problems
On average, insulating an attic costs about $2,500, ranging from $1,500 to $3,500, depending on the insulation type, amount, and your attic’s accessibility. Additional cost factors include sealing air leaks, removal or replacement of insulation, and inspections. Types of insulation include:
Blown-in: $1–$4 per square foot
Spray foam: $2–$5 per square foot
Batt: $2–$4 per square foot
Structural insulated panels: $4–$7 per square foot
Loose-fill: $2–$5 per square foot
Reflective: $0.50–$1.50 per square foot
From average costs to expert advice, get all the answers you need to get your job done.
The cost of blown-in insulation in St. Louis, MO varies depending on the type of insulation, labor, prep work, and more. Learn more about the cost factors in this guide.
New insulation makes your home more comfortable and boosts energy efficiency. Use this guide to budget for insulation installation costs in St. Louis, MO.
Attic insulation removal costs in St. Louis, MO, vary based on multiple factors, including why you're removing it and how easy it is to complete the task.
If you need to add insulation to your home, you’re likely wondering, who installs insulation. Learn why it’s best to hire an insulation pro for this project.
Poor insulation in your house means a less comfortable living space and higher energy bills. Use this guide to diagnose issues with your insulation.
There are 10 types of insulation you can use for your home. Read this guide to discover which insulation types could be best for the job.
