The Best Insulation Contractors in Saint Mary, MO

Compare the highest-rated insulation professionals in Saint Mary, Missouri. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Perryville Insulation & Supply

4.7
(85 reviews)
Verified

A well-established, local company with deep roots in the region. They are known for their expertise in both residential and commercial insulation projects, offering a wide range of materials and methods. Their strength lies in their local knowledge, customer-focused approach, and long-standing reputation for reliability in Perry County and surrounding areas like Sainte Genevieve County.

5 S Spring St, Perryville, MO 63775

Specialties & Features

Spray foam insulation
Blown-in insulation
Attic insulation installation and upgrade

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#2

Koala Insulation of South County

4.8
(120 reviews)
Verified

Part of a national brand with a strong local franchise, Koala Insulation brings professional standards and a wide service portfolio. They are highly reviewed for their thorough energy audits, clear communication, and expertise in modern air sealing techniques alongside insulation installation and replacement.

Services the Greater St. Louis area, including Missouri counties like Sainte Genevieve.

Specialties & Features

Insulation removal and replacement
Air sealing services
Energy efficiency audits

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes
#3

Supreme Insulation

4.6
(70 reviews)
Verified

A reputable contractor based in the broader metro area that specializes in improving home energy efficiency. They are particularly noted for their work in crawl spaces and basements, addressing moisture control and air sealing as part of a complete insulation solution. They service a wide radius that includes rural communities like Saint Mary.

14330 Manchester Rd, Manchester, MO 63011

Specialties & Features

Basement and crawl space insulation
Wall insulation services
Blown-in insulation

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Saint Mary

The insulation market for residents of Saint Mary, MO, is characterized by a reliance on regional contractors from nearby hubs like Perryville and the greater St. Louis metropolitan area. Due to the rural nature of the community, there is limited local competition, which means residents benefit from choosing from established companies in adjacent markets. The average quality of service is high, as these regional providers are accustomed to serving a wide geographic area and are well-versed in the specific needs of older homes and new construction in Missouri's climate. Pricing is competitive and typically in line with regional averages, with project costs varying significantly based on the home's size, the type of insulation chosen (e.g., spray foam being a premium option), and the scope of preparatory work like air sealing or removal of old insulation. Homeowners are advised to seek multiple quotes and inquire about potential rebates from utility companies like Ameren Missouri, which these contractors are generally knowledgeable about.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Saint Mary regulations and climate

Frequently Asked Questions About Insulation in Saint Mary

Get answers to common questions about insulation services in Saint Mary, Missouri.

1What is the most cost-effective type of insulation for my older home in Saint Mary, considering our local climate?

For our Southeast Missouri climate with hot, humid summers and cold winters, blown-in cellulose or fiberglass in attics and walls is often the most cost-effective upgrade for older homes. These materials provide excellent thermal resistance and air sealing, which is crucial for managing both summer cooling loads and winter heat loss. The initial investment is typically recouped through significant energy savings on your utility bills within a few years.

2When is the best time of year to have insulation installed in Saint Mary, MO?

The ideal times are late spring (April-May) and early fall (September-October). These periods typically offer milder temperatures, allowing contractors to properly assess and install insulation without the extreme heat of a Missouri summer or the deep cold of winter affecting the work. Scheduling during these shoulder seasons also ensures your home is prepared for peak heating and cooling demands.

3Are there any specific local building codes or regulations in Saint Mary or Perry County that affect insulation installation?

Insulation work in Saint Mary must comply with the 2018 International Residential Code (IRC), which Missouri has adopted, and any specific amendments from Perry County. This includes required R-values for different parts of the home (e.g., attic insulation should be at least R-49). Always hire a licensed contractor who will pull the necessary local permits, ensuring the installation meets code for safety and energy efficiency.

4How do I choose a reliable insulation contractor serving the Saint Mary area?

Look for a contractor with verifiable local experience, proper Missouri licensing, and insurance. Ask for references from homes in Perry or Ste. Genevieve counties and check reviews specific to their insulation work. A reputable provider will offer a detailed, in-home assessment and quote, explain the best materials for our region, and clearly outline the project timeline and cleanup process.

5My house feels drafty in winter. Could inadequate attic insulation be the main issue, and is moisture a concern here?

Yes, inadequate attic insulation is a primary cause of draftiness and high heating bills in Saint Mary homes. Our region's high humidity also makes proper attic ventilation and air sealing critical to prevent moisture buildup, which can lead to mold and reduce insulation effectiveness. A professional assessment can identify if you need more insulation, better ventilation, or air sealing around penetrations in the attic floor.