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TRUSTED BY COLLINSVILLE, IL HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon56
    Verified insulation services reviews

Find Insulation pros in Collinsville

Avatar for Foam Co Insulation
Foam Co Insulation
5.0(
10
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Collinsville, IL and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"FoamCo recently insulated our basement walls. Before, we couldn’t use the basement in the winter time. We noticed an immediate difference once the insulation went in, and now our basement is our favorite cozy hangout spot in the house. They were great at explaining exactly what kind of insulation I needed and were actually the best priced bid we got."
Crew and Truck setting up Outside House
What a portion of the attic looked like after install.
Spray Foam
Additional Photos
Blown Fiberglass

+15

15 neighbors recently requested a quote
Recommended by90%of homeowners
Hawx Insulation-St. Louis
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving Collinsville, IL and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

At Hawx Pest Control, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. Hawx Premium Pest Control will treat your pests, mosquitos, and more- then keep them away for good. If pests come back between treatments so will we, at no additional cost to you. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote. \n

Recommended by75%of homeowners
Avatar for Good Attic, LLC
Good Attic, LLC
5.0(
5
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Collinsville, 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.

Response time5 days
92 neighbors recently requested a quote
Avatar for Local Air Duct Pros
Local Air Duct Pros
4.5(
15
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Collinsville, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"Thank you for your trust! At Local Air Duct Pros we specialize in professional air duct cleaning, dryer vent cleaning, chimney sweep, and attic insulation. Our licensed and insured team is committed to providing top-quality service at fair prices. We appreciate your support and look forward to serving you again!"
Response time10 hrs
35 neighbors recently requested a quote
Avatar for Healthy Home Pest Control & Services
Healthy Home Pest Control & Services
4.4(
385
)
Blown-In Insulation - Install or Upgrade

Serving Collinsville, IL and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"The insulation job for my home attic was completed as scheduled. I was very pleased with the work as promised by Healthy Home Pest Control. The work quality met my expectations and I feel the value was excellent."
New Trucks
Duct Cleaning Trailers
New Sign
Response time8 hrs
Response rate94%
509 neighbors recently requested a quote
Avatar for St Louis Insulation
St Louis Insulation
4.9(
67
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Collinsville, IL and surrounding areas

In business since 2001

Free estimates

Credit card accepted

"We had St. Louis Insulation seal and insulate the crawlspace in our one-story 3-bedroom brick home in early December. The existing insulation was probably original from the mid-70s and was falling from the ceiling of the crawlspace, about half already on the floor. SLI provided an estimate and described their procedure -- sealing, not just replacing the rolls of insulation but sealing the floor and walls and vents. They described the timeline for the work. The estimate was pricey, but well in line with other providers of the same service, and it's a one-time job, not an every-20-years job. Ultimately we selected SLI as we were impressed by reviews of their work and by their professionalism and the clarity of their description of the work to be done. They arrived punctually and performed the work very fast, considering the nature of the work (removing all old insulation and all the other debris down there, putting in the new plastic and insulation and foam spray). I was very impressed by their politeness, efficiency, and the cooperation they showed in working together. (They're in the crawlspace and so if they had yelled or even been grumpy with each other, I'd have heard it.) They removed approximately 24 very large stuffed trashbags of old insulation (it's a large crawlspace) and stacked them neatly on the driveway, then put everything in their truck and hauled it away. (That was the first day.) They brought in the supplies of the new work -- holy cow, lots of plastic, tanks for the foam spray etc -- and quickly installed all of it. (That was another half-day.) They supplied photos of the work so that I didn't need to get into the crawlspace to see what they'd done. The work was fully completed within the time they had estimated. And everything they did was cleaned up. I would recommend, without reservation, their work. Great people, very professional, and they clearly have done this enough that they are very well organized. Because the entrance to our crawlspace is in the floor of a bedroom closet, they kept that bedroom closed while they were working, and took everything in and out via a window. It kept any mess localized, so that I did have to do a thorough cleaning of the carpet and all surfaces in the room but it was only one room, and I was cleaning the dust basically -- all their supplies and any trash were totally removed. So A+ on that. One small unforeseen issue was that we have small dogs, and we had not thought about the spray foam and any fumes, and SLI did not think of that either, until the day they were going to do the spray foam. We had to quickly move the dogs to another part of the house, and near a window, where they would be less exposed. (They're pugs so I think the fumes would not be an issue for a larger dog -- we just need to be careful because they're pugs.) If you have small dogs, or pet birds, you will want to consider how to keep them safe during the foam spray. Overall, St. Louis Insulation did a great job. They said exactly what they'd do, and they did it. Considering the nature of the work required (bending or kneeling in a crawlspace, hauling huge bags of old insulation and rolls of plastic while bending or kneeling), I am hugely impressed with the professionalism and with their good-natured attitude. They are very good at what they do."
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+40

Recommended by98%of homeowners
Showing 1-10 of 47
Insulation questions, answered by experts

If you have access to the foundation walls, adding spray foam insulation to your existing unfinished basement or crawl space is straightforward. Replacing existing insulation in your unfinished attic space is possible after removing the old insulation. However, spray foam insulating an existing wall after the drywall is in place isn’t possible unless you remove most of the drywall.

While there are many different kinds of insulation, spray foam, blown-in, foam board, and batt and roll are the four types you’re most likely to see. That doesn’t mean they’re alike, though. Each one varies drastically in terms of cost, materials used, and how they’re installed—not to mention, how well they limit heat transfer.

An insulated garage benefits from roof vents to ensure proper ventilation and prevent moisture buildup. Insulation can trap moisture in the garage, especially during temperature fluctuations, and roof vents play a crucial role in expelling the moisture in the air. Including roof vents promotes air circulation, preventing condensation and enhancing overall air quality.

Insulating a stone house is an expensive and involved process because it requires building a double-walled house. The walls don’t need to be the same thickness, but they both need to be thick enough to handle any structural demands and meet fire and safety standards. The insulation (usually foam or fiberglass) is then installed between the two stone walls.

Periodic checks for moisture or pest issues ensure consistent performance.

The Collinsville, IL homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.