The Best Insulation Contractors in Herculaneum, MO

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

#1

Koala Insulation of South County & Jefferson County

4.9
(120 reviews)
Verified

A highly-rated, locally-focused franchise known for its strong customer service and comprehensive insulation services. They specialize in both residential and commercial projects, offering free evaluations and emphasizing education on energy efficiency and cost savings. Their service area is specifically targeted to include Jefferson County.

4208 Shoreline Dr, Imperial, MO 63052 (This is their primary office, but they serve Herculaneum directly.)

Specialties & Features

Blown-in insulation
Spray foam insulation
Insulation removal and replacement

Business Information

Years in Business:5 years
Licensed:Yes
Insured:Yes
#2

St. Louis Insulation Services

4.8
(200 reviews)
Verified

A well-established regional contractor with a strong reputation across the greater St. Louis area, including Jefferson County. They are known for professional crews, expertise in all insulation types, and their commitment to adhering to building codes and maximizing energy efficiency.

143 Woodlake Dr, Chesterfield, MO 63017 (Headquarters, serves the St. Louis region including Herculaneum)

Specialties & Features

Spray foam insulation
Attic insulation installation and upgrade
Basement and crawl space insulation

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

All Season Energy Consultants

4.7
(80 reviews)
Verified

A local Jefferson County company that takes a holistic approach to home performance. They are particularly strong in combining insulation services with air sealing and energy audits to provide a comprehensive solution for improving home comfort and reducing utility bills.

122 E Main St, Festus, MO 63028 (Located in the immediate area, very close to Herculaneum)

Specialties & Features

Energy efficiency audits
Air sealing services
Insulation removal and replacement

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Herculaneum

** The insulation market in Herculaneum, MO, is characteristic of a small Midwestern city situated within a larger metropolitan area. The competition level is moderate but of generally high quality. Residents have access to both dedicated local contractors from neighboring Festus/Crystal City and established regional players from the St. Louis area. This provides a good range of options from specialized, community-focused businesses to larger companies with extensive resources. The **average quality** of service is high, as these providers must compete in a market where word-of-mouth and online reviews are crucial. Many are well-versed in local building codes and potential rebate programs from utilities like Ameren Missouri. **Typical pricing** is competitive with regional averages. For standard blown-in attic insulation, homeowners might expect prices in the range of $1,500 - $3,500 depending on square footage and existing conditions. Spray foam insulation is a premium service, with costs often starting at $2,000 and going up to $7,000+ for full attics or walls. Most reputable companies offer free, detailed quotes, making it easy for homeowners to compare services and prices. The presence of companies specializing in energy audits is a significant benefit, allowing homeowners to make data-driven decisions about their insulation investments.

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 Herculaneum regulations and climate

Frequently Asked Questions About Insulation in Herculaneum

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

1What are the most important insulation upgrades for homes in Herculaneum, given our local climate?

For Herculaneum's humid continental climate with hot, humid summers and cold winters, the attic is the top priority. Proper attic insulation (typically to R-49 or higher) prevents significant heat loss in winter and blocks radiant heat gain in summer. Sealing air leaks around windows, doors, and sill plates is equally critical to manage moisture and improve comfort year-round, directly impacting energy bills from Ameren Missouri.

2Are there any local regulations or rebates in Missouri I should know about before insulating my home?

While Herculaneum follows standard Missouri building codes, there are no unique city ordinances for residential insulation. However, Missouri offers valuable incentives. Check for rebates from Ameren Missouri for energy-efficient upgrades, and always ensure your contractor is familiar with the 2021 International Energy Conservation Code (IECC) adopted by the state, which sets minimum R-value requirements for our climate zone.

3What is the best time of year to schedule insulation work in Herculaneum?

Early fall and late spring are ideal. These periods typically offer mild, dry weather, which is perfect for attic work and allows for proper air sealing. Scheduling during these shoulder seasons also ensures your home is prepared before the extreme temperatures of a Missouri summer or winter hit, and you'll find greater contractor availability compared to peak seasons.

4How do I choose a reliable insulation contractor in the Jefferson County area?

Always verify the contractor is licensed, insured, and has specific experience with Missouri homes. Ask for local references in Herculaneum or nearby towns like Festus to see their work. A reputable provider should offer a detailed, written estimate that includes a materials specification (R-value, type) and a blower door test to diagnose air leaks, which is crucial for our climate.

5My older Herculaneum home has drafty walls. Is blown-in insulation worth the cost, and will it disturb my existing walls?

Yes, dense-pack blown-in cellulose or fiberglass for existing walls is a highly effective solution for our area's older housing stock. The process involves small exterior or interior holes, causing minimal disruption, and it dramatically improves thermal performance and air sealing. The investment often pays for itself through reduced heating and cooling costs, given our seasonal temperature extremes.