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Best insulation pros near Montgomery City, MO

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Top-Rated Insulation pros in Montgomery City - Updated Nov 2026

Avatar for The Attic Yettis
The Attic Yettis
5.0(
8
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Montgomery City, MO and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"I hired the attic yetis to replace insulation in my attic and I was more than happy with the outcome. The service was quick and efficient and just a few days in I am already noticing a major difference. If you need any attic insulation or pest prevention I highly recommend the attic yetis"
Full attic remediation
Full attic remediation
Full attic remediation
Full attic remediation
Full attic remediation

+37

31 neighbors recently requested a quote
Avatar for Good Attic, LLC
Good Attic, LLC
5.0(
6
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Montgomery City, MO and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

Good Attic of Saint Louis removes old, dirty or pest-contaminated attic insulation and replaces it with fresh blown-in insulation to R-49 or R-60. Jobs can include air sealing, sanitizing after rodents, squirrels or raccoons, and attic ventilation fixes. We also top off attics that are simply under-insulated. We serve St. Louis and St. Charles counties, including St. Charles, St. Peters, O'Fallon, Chesterfield, Ballwin and Kirkwood. Free attic inspection with photos and a written scope, and same-week appointments.

Response time2 days
Response rate100%
85 neighbors recently requested a quote
Avatar for D & Z Spray Foam Insulation
D & Z Spray Foam Insulation
4.5(
12
)
Spray Foam Insulation - Install

Serving Montgomery City, MO and surrounding areas

In business since 2016

Free estimates

Credit card accepted

Welcome to D & Z Spray Foam Insulation! We have been proudly serving Missouri, and are excited to work with you! Contact us today, for quality service at an affordable rate. At D & Z Spray Foam Insulation, we treat your home as if it were our own. Call today!

Spray foam
Response time3 days
Recommended by91%of homeowners
Avatar for Siding Repair Systems
Siding Repair Systems
4.5(
128
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Montgomery City, MO 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."
Additional Photos
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+6

Recommended by89%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Montgomery City, MO and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."
Additional Photos
Additional Photos
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+2

Recommended by65%of homeowners
Avatar for Middle Water, LLC
Middle Water, LLC
5.0(
3
)
Spray Foam Insulation - Install

Serving Montgomery City, MO and surrounding areas

In business since 2025

Free estimates

Credit card accepted

"I recently had the pleasure of working with Middle Water LLC for spray foam insulation on a client's home and was thoroughly impressed by their professionalism and quality of work. The team consistently showed up on time and adhered strictly to the bid they provided, showcasing their commitment to reliability and integrity. Their dedication and work ethic, particularly the impressive contributions from the hardworking Amish labor, were remarkable. Based on this experience, I have confidently referred Middle Water LLC to another client, who is now planning to use their services as well. The excellent job they did, combined with their punctuality and adherence to the bid, make them a standout choice for insulation services. I am so satisfied with their work that I intend to use them for my own home, which I plan to build in the near future. Middle Water LLC has earned my highest recommendation for anyone seeking top-notch spray foam insulation for their home or business."
My jobs
My jobs
My jobs
My jobs
My jobs

+4

Response time9 hrs
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Insulation FAQs, answered by experts

A dehumidifier can reduce condensation on your ductwork by lowering humidity levels in the air. Condensation occurs when humid, warm air makes contact with cold ducts. A dehumidifier can help maintain your home's indoor humidity below or around 50%, minimizing moisture buildup. However, if condensation is caused by leaks, cracks, or other damage, a dehumidifier won’t solve the problem. 

Insulating an unheated garage can still be worth it. For instance, insulating an attached garage can help with heat loss from your house in general, and it can also make it easier to store electronics in your garage without worrying about them being exposed to extreme temperatures.

If you use your detached garage as a workspace, insulation can still make a difference. Plus, you can use space heaters and a window unit AC to help condition the space while you work without installing heating.

Insulating your ducts offers several benefits, including:

  • Improved energy efficiency: Duct insulation prevents energy losses, reducing heating and cooling costs.

  • Cost savings: Lower energy bills make insulation a cost-effective investment.

  • Environmental benefits: Enhanced efficiency reduces your carbon footprint.

  • Consistent comfort: Insulated ducts help maintain a stable indoor temperature.

  • Better indoor air quality: Reduced allergens and pollutants improve air quality.

Unfortunately, pipes can freeze when exposed to prolonged freezing temperatures, whether or not you have installed insulation covers. Insulation covers, however, are still an excellent idea as they can reduce the chance of your pipe freezing by keeping the pipes closer to the temperature of the water inside the pipe.

On average, insulating an attic costs about $2,500, with a typical range of $1,500 to $3,500. The final price often depends on the attic's size, with costs generally falling between $1 to $3 per square foot. For example, insulating a 1,800-square-foot attic would likely cost between $1,800 and $5,400.

If the project involves removing old insulation, this can add an average of $900 to the total cost, bringing a full removal and reinsulation project to around $3,000.

Several factors influence the overall cost:

  • Insulation Type: Prices per square foot vary significantly by material.

  • Reflective: $0.50–$1.50

  • Blown-in: $1–$4

  • Batt: $2–$4

  • Loose-fill: $2–$5

  • Spray foam: $2–$5

  • Structural insulated panels (SIPs): $4–$7

  • Project Complexity: Factors like sealing air leaks, poor attic accessibility, and required inspections can add to the cost.

  • Removal Issues: The discovery of mold, asbestos, or pests during the removal of old insulation can substantially increase the price.

The Montgomery City, MO homeowners’ guide to insulation services

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