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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon14
    Verified insulation services reviews

Find Insulation pros in Dow

Avatar for Foam Co.

Foam Co.

5.00(
10
)
Approved Pro

Foam Co.

5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
3 years of experience

We are local owned St. Louis insulation provider including, fiberglass/cellusose blown in insulation, Batt Insulation, Spray Foam Insulation, Crawl Space Insulation and Insulation Removal! We come in with the best interest of the homeowner and customize the job to their needs! We pride ourselves in putting the customers needs first!

"efficient cleaned up afterward accurate estimate"

Andy d on October 2024

We are local owned St. Louis insulation provider including, fiberglass/cellusose blown in insulation, Batt Insulation, Spray Foam Insulation, Crawl Space Insulation and Insulation Removal! We come in with the best interest of the homeowner and customize the job to their needs! We pride ourselves in putting the customers needs first!

"efficient cleaned up afterward accurate estimate"

Andy d on October 2024


Avatar for iFOAM Insulation of O'Fallon

iFOAM Insulation of O'Fallon

4.88(
8
)
Approved Pro

iFOAM Insulation of O'Fallon

4.88(
8
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

iFOAM is a U.S.-based insulation franchise fueled by the franchising experts at HorsePower Brands. We specialize in spray foam insulation and also provide best-in-industry blown-in solutions, insulation removal, retrofitting and other specialty project services. At iFOAM, we saw an issue with the industry—a lack of quality and trustworthy services and a clear absence of certified training when it came to spray foam. At iFOAM, we’re flipping the script by providing our certified technicians with the best tools, training and products in the trade and bolstering your experience with prompt, timely communication.

"Job completed as estimated."

Greg M on June 2025

iFOAM is a U.S.-based insulation franchise fueled by the franchising experts at HorsePower Brands. We specialize in spray foam insulation and also provide best-in-industry blown-in solutions, insulation removal, retrofitting and other specialty project services. At iFOAM, we saw an issue with the industry—a lack of quality and trustworthy services and a clear absence of certified training when it came to spray foam. At iFOAM, we’re flipping the script by providing our certified technicians with the best tools, training and products in the trade and bolstering your experience with prompt, timely communication.

"Job completed as estimated."

Greg M on June 2025


Avatar for Full Service Roofing & Remodeling Inc

Full Service Roofing & Remodeling Inc

4.87(
31
)

Full Service Roofing & Remodeling Inc

4.87(
31
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Full Service Roofing & Remodeling specializes in residential roof repair and replacement in Quincy, IL and surrounding areas. Call us whether you need roofing inspection, siding or windows installation services or a whole new roofing system installed.

Full Service Roofing & Remodeling specializes in residential roof repair and replacement in Quincy, IL and surrounding areas. Call us whether you need roofing inspection, siding or windows installation services or a whole new roofing system installed.


Avatar for ShelfGenie of Chicago

ShelfGenie of Chicago

4.76(
37
)

ShelfGenie of Chicago

4.76(
37
)
Customers say: True professional
25 years of experience

Creating custom storage and organizational solutions is what we do at ShelfGenie®. We employ both designers and installers who can transform your home with our Glide-Out™ shelving solutions and meet any specific accessibility, storage or organizational need. Corporate Office: 5500 Interstate North Parkway, Ste 250, Atlanta, GA 30328.

Creating custom storage and organizational solutions is what we do at ShelfGenie®. We employ both designers and installers who can transform your home with our Glide-Out™ shelving solutions and meet any specific accessibility, storage or organizational need. Corporate Office: 5500 Interstate North Parkway, Ste 250, Atlanta, GA 30328.


Avatar for Window Nation St. Louis

Window Nation St. Louis

4.72(
18
)

Window Nation St. Louis

4.72(
18
)
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

At Window Nation, we know replacement windows. We’re third-generation window replacement experts who have been lucky to provide homeowners replacement windows, siding, and doors for over fifteen years. We opened our first showroom in Maryland in 2006, quickly growing to serve homeowners in cities across the country – and we’re not stopping there. We’re grateful for every homeowner who has trusted us to upgrade their most important asset: their home. We’ve learned a lot about home improvement over the years, but the most important thing we learned isn’t about window replacement. We learned the home improvement industry isn’t about offering the best windows, siding and doors; it’s about the relationships we build with our customers.

"Professional, timely and best installers we’ve had. Our installers took to time to get everything fit right. They had their hands full with a few doors and windows, due to bad framing from our construction contractor. Our new doors and windows work flawlessly now."

Tony P on September 2025

At Window Nation, we know replacement windows. We’re third-generation window replacement experts who have been lucky to provide homeowners replacement windows, siding, and doors for over fifteen years. We opened our first showroom in Maryland in 2006, quickly growing to serve homeowners in cities across the country – and we’re not stopping there. We’re grateful for every homeowner who has trusted us to upgrade their most important asset: their home. We’ve learned a lot about home improvement over the years, but the most important thing we learned isn’t about window replacement. We learned the home improvement industry isn’t about offering the best windows, siding and doors; it’s about the relationships we build with our customers.

"Professional, timely and best installers we’ve had. Our installers took to time to get everything fit right. They had their hands full with a few doors and windows, due to bad framing from our construction contractor. Our new doors and windows work flawlessly now."

Tony P on September 2025


Avatar for Terminix - Benton -Termite & Pest Control

Terminix - Benton -Termite & Pest Control

4.54(
28
)

Terminix - Benton -Termite & Pest Control

4.54(
28
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

When pests or termites move in, you want the ultimate weapon to take them out: Terminix, America’s leading provider of termite and pest control. It's no wonder more than 2.7 million customers trust us to protect their homes and families from the havoc that unwanted intruders can create. You can look to us for a wide range of services to protect your home top to bottom, inside and out: Insulation Service, Moisture Control Solutions, Rodent and Wildlife Service and more. We can even help you win the fight against the bite with our revolutionary Mosquito Service. Don’t trust your home to just anybody. Go big. Go strong. Go Terminix. Protector of home since 1927.

When pests or termites move in, you want the ultimate weapon to take them out: Terminix, America’s leading provider of termite and pest control. It's no wonder more than 2.7 million customers trust us to protect their homes and families from the havoc that unwanted intruders can create. You can look to us for a wide range of services to protect your home top to bottom, inside and out: Insulation Service, Moisture Control Solutions, Rodent and Wildlife Service and more. We can even help you win the fight against the bite with our revolutionary Mosquito Service. Don’t trust your home to just anybody. Go big. Go strong. Go Terminix. Protector of home since 1927.


Avatar for Illiana Insulation Inc

Illiana Insulation Inc

4.60(
10
)

Illiana Insulation Inc

4.60(
10
)
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Illiana Insulation has over 50 years of combined experience. Our goal is to improve the comfort of your home/commercial building because we believe "it's what's inside that counts." Call us today and we will come look at your project and provide you with a free estimate.

Illiana Insulation has over 50 years of combined experience. Our goal is to improve the comfort of your home/commercial building because we believe "it's what's inside that counts." Call us today and we will come look at your project and provide you with a free estimate.


Mississippi Valley Construction

5.00(
5
)

Mississippi Valley Construction

5.00(
5
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a general construction company. We bill after the job is finished and expect payment with in 30 days of bill date. We will finance if it is worked out ahead of time.

We are a general construction company. We bill after the job is finished and expect payment with in 30 days of bill date. We will finance if it is worked out ahead of time.



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Insulation questions, answered by experts

For a truly DIY solution to protect your outdoor faucets from freezing, you can craft your own faucet sock out of spare rags, plastic shopping bags, and duct tape—but this method might not be as effective (or attractive) as store-bought. If you choose to DIY your own outdoor faucet cover, be aware that rags, old towels, and other fabric you might use to wrap the faucet can absorb water like a sponge and could cause problems if it freezes.

Minimal maintenance is required, though regular inspections to ensure insulation hasn't shifted or deteriorated can improve performance over time.

While carpet over carpet may provide some additional insulation and soundproofing benefits, it's not as effective as other methods. Layering carpets can add a modest buffer against noise and temperature fluctuations, but it's limited compared to installing thicker carpet padding or using specialized soundproofing materials. For optimal floor insulation and soundproofing, consider alternative solutions tailored to your specific needs and budget, such as adding additional padding or soundproofing underlayments beneath the carpet.

Garage door insulation can last anywhere from 20 to 100 years depending on the type of insulation. Cellulose has the shortest lifespan coming in at between 20 and 30 years, while spray foam, mineral wool, and fiberglass can last between 80 and 100 years with proper maintenance. 

Humidity plays a role in how long more susceptible insulation materials—like fiberglass—last. Once fiberglass batts reach the 15-year mark, you'll need to routinely inspect your insulation to ensure that it is in mint order.

Modern windows provide enhanced UV protection, improved heat retention, and cooling efficiency, contributing to overall household energy savings.

The Dow, IL homeowners’ guide to insulation services

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