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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon14
    Verified insulation services reviews

Find Insulation pros in Union

Avatar for Foam Co.

Foam Co.

4515 Towne Court
5.00(
9
)
Approved Pro

Foam Co.

4515 Towne Court
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
149 local quotes requested

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

949 West Terra Lane
4.86(
7
)
Approved Pro

iFOAM Insulation of O'Fallon

949 West Terra Lane
4.86(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
97 local quotes requested

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


We specialize in all around home repair, hvac and custom sheet metal fabrication, maintenance, and improvements. The safety and investment of one's home is our top priority.


Falkner fixes general services

21090 Smith Creek Rd
No reviews yet

Falkner fixes general services

21090 Smith Creek Rd
No reviews yet
Free onsite estimate

Falkner fixes, general services is a handyman service that covers a wide range of services form light construction, plumbing, electrical, finish work, painting, and any other tasks around your home or business that needs repairs or Instalation. We also provide yard work services such as cutting trimming, waste removal, and tree services.

Falkner fixes, general services is a handyman service that covers a wide range of services form light construction, plumbing, electrical, finish work, painting, and any other tasks around your home or business that needs repairs or Instalation. We also provide yard work services such as cutting trimming, waste removal, and tree services.


Avatar for Capital Foam

Capital Foam

521 FEISE RD
No reviews yet

Capital Foam

521 FEISE RD
No reviews yet
6 years of experience

Capital Foam Systems is a Spray Foam and Coating Applications Company with over 20-years experience. We specialize in a diverse range of Spray Foam applications, as well as Roof Restoration Coating Systems.

Capital Foam Systems is a Spray Foam and Coating Applications Company with over 20-years experience. We specialize in a diverse range of Spray Foam applications, as well as Roof Restoration Coating Systems.


Avatar for Foundation Recovery Systems

Foundation Recovery Systems

1625 Larkin Williams Rd
4.76(
42
)

Foundation Recovery Systems

1625 Larkin Williams Rd
4.76(
42
)
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Foundation Recovery Systems, founded in 1992, is a subsidiary of Groundworks, a family of companies that offers superior, proven solutions for your foundation repair, structural repair, crawl space encapsulation, dehumidification, and concrete leveling needs. They currently maintain offices in Kansas City, Moberly, Springfield, and St Louis. Foundation Recovery Systems is a recognized accredited member of the Better Business Bureau and devotes its years of experience, industry knowledge and specialized training to help customers protect their homes or commercial buildings from water damage, concrete sinking, and foundation failure.

"As far as we can tell, the work was effective at stabilizing our foundation, and the on-site crew led by Luke was great, informing us of their progress along the way. However, we expressed in advance our concern about protecting some of our landscaping. We were assured the crew would have boards to cover landscaping on which removed dirt would be piled. This turned out not to be the case. I’ve had quite a bit of expense and labor to restore landscaping that was damaged during the work. This damage could have been avoided. Foundation Recovery sends out $500 coupons to advertise for their work. My attempts to contact Joe and FRS to honor even a part of the $500 coupon to help defray my landscaping costs have gone unanswered. Our salesperson, Joe, was not present during the work and has not been responsive to our followup inquiries. We are very disappointed in the poor customer service from Foundation and its representatives. I cannot recommend this company based on their failure to address our up-front concerns, lack of response to our followup requests, and the false advertising that is associated with the coupons."

Jerry K on September 2025

Foundation Recovery Systems, founded in 1992, is a subsidiary of Groundworks, a family of companies that offers superior, proven solutions for your foundation repair, structural repair, crawl space encapsulation, dehumidification, and concrete leveling needs. They currently maintain offices in Kansas City, Moberly, Springfield, and St Louis. Foundation Recovery Systems is a recognized accredited member of the Better Business Bureau and devotes its years of experience, industry knowledge and specialized training to help customers protect their homes or commercial buildings from water damage, concrete sinking, and foundation failure.

"As far as we can tell, the work was effective at stabilizing our foundation, and the on-site crew led by Luke was great, informing us of their progress along the way. However, we expressed in advance our concern about protecting some of our landscaping. We were assured the crew would have boards to cover landscaping on which removed dirt would be piled. This turned out not to be the case. I’ve had quite a bit of expense and labor to restore landscaping that was damaged during the work. This damage could have been avoided. Foundation Recovery sends out $500 coupons to advertise for their work. My attempts to contact Joe and FRS to honor even a part of the $500 coupon to help defray my landscaping costs have gone unanswered. Our salesperson, Joe, was not present during the work and has not been responsive to our followup inquiries. We are very disappointed in the poor customer service from Foundation and its representatives. I cannot recommend this company based on their failure to address our up-front concerns, lack of response to our followup requests, and the false advertising that is associated with the coupons."

Jerry K on September 2025


Avatar for Window Nation St. Louis

Window Nation St. Louis

1913 Beltway Dr
4.72(
18
)

Window Nation St. Louis

1913 Beltway Dr
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 Gonz Insulation

Gonz Insulation

4761 Flat River Rd
No reviews yet

Gonz Insulation

4761 Flat River Rd
No reviews yet

At Gonz Insulation we provide the industry with superior insulation and insulation knowledge. Gonz Insulation performs FREE home energy consultations and with that we show you how you can reduce your energy bills! We specialize in Spray Foam insulation, Fiberglass, Cellulose, Concrete Jacking and protective coating.

At Gonz Insulation we provide the industry with superior insulation and insulation knowledge. Gonz Insulation performs FREE home energy consultations and with that we show you how you can reduce your energy bills! We specialize in Spray Foam insulation, Fiberglass, Cellulose, Concrete Jacking and protective coating.



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Insulation questions, answered by experts

When it comes to fiberglass insulation versus foam board, there are a few notable differences, both aesthetically and functionally. Fiberglass insulation is soft and flexible, meaning it can be squeezed into tight spaces more easily than foam board. Fiberglass insulation also has a higher R-value, making it a better pick for colder climates. However, foam board insulation can resist moisture and pest damage much better than fiberglass.

Rockwool insulation can last up to 100 years, but just how long this insulation lasts in your home depends on how well it's maintained. Poorly installed insulation may last only 30 years, so be sure to regularly inspect your home's insulation for water damage, settling, and pests to give your insulation the best chance of having a long lifespan.

R-value stands for resistance value and is a number assigned to insulation that states how good the insulation is at heat transference (insulation). The R-value of injection foam is around 4 which homeowners will be happy to know is actually quite good. Another benefit of injection foam versus fiberglass foam is that the colder it gets, the more injection foam retains its resistance properties, whereas fiberglass tends to lose its efficiency in colder temperatures.

A garage ceiling needs a vapor barrier if it’s a heated garage or if you’re installing insulation in the ceiling. Without a vapor barrier, you risk moisture issues and mold growth. If you have an unheated garage and don’t plan on installing insulation that could get wet and harbor mold, the ceiling doesn't need a vapor barrier.

Energy-efficient homes generally have higher appraisals and appeal to buyers.

The Union, MO homeowners’ guide to insulation services

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