The Best Insulation Contractors in Harrisonville, MO

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

#1

A+ Insulation & Roofing

4.8
(250 reviews)
Verified

A highly-rated, family-owned company based in the KC metro with a strong focus on comprehensive home performance. They are known for their professionalism, detailed energy audits, and expertise in both spray foam and blown-in insulation systems. They explicitly list Harrisonville and Cass County in their service area.

2000 Swift Ave, North Kansas City, MO 64116 (Primary office; serves Harrisonville)

Specialties & Features

Spray foam insulation
Attic insulation upgrades
Energy efficiency audits

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Allied Insulation

4.7
(180 reviews)
Verified

A well-established contractor with a long history in the Kansas City region. They have a strong reputation for handling both residential and commercial projects, with a wide array of insulation types. Their longevity and large volume of positive reviews indicate reliability and expertise.

11212 Lackman Rd, Lenexa, KS 66219 (Primary office; serves the KC metro, including Harrisonville)

Specialties & Features

Blown-in insulation
Insulation removal and replacement
Basement and crawl space insulation

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

KC Crawlspace & Insulation

4.6
(90 reviews)
Verified

This provider specializes in the critical, often overlooked areas of a home. Their focus on crawl spaces and basements, combined with air sealing services, makes them a top choice for addressing moisture control and foundational insulation, which is a common need in Missouri homes.

1508 NE Parvin Rd, Kansas City, MO 64116 (Primary office; serves Harrisonville)

Specialties & Features

Crawl space encapsulation
Basement insulation
Air sealing services

Business Information

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

Why These Are the Top Insulation Contractors in Harrisonville

** The insulation market serving Harrisonville, MO, is characterized by strong regional competition from the Kansas City metropolitan area. While there may be local general contractors who handle insulation, the most reputable and specialized providers are typically these established KC-based companies that extend their services to Cass County. The average quality of service is high, as these companies must maintain strong reputations in a competitive larger market. Homeowners in Harrisonville benefit from this competition, which helps standardize pricing and service quality. Typical pricing is influenced by the high performance standards and climate of the region. As a rough guide: * **Blown-in Attic Insulation:** $1,500 - $3,500 * **Spray Foam (Open Cell) for Attic:** $2,500 - $5,500 * **Crawl Space Encapsulation & Insulation:** $3,000 - $8,000+ These providers are well-versed in Missouri building codes and can often advise on potential rebates from local utilities like Evergy, making energy efficiency upgrades more accessible.

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 Harrisonville regulations and climate

Frequently Asked Questions About Insulation in Harrisonville

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

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

For Harrisonville's 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 (R-value) and air sealing, which is crucial for managing both summer cooling loads and winter heat loss. The initial investment typically pays for itself through significant savings on heating and cooling bills, especially given our local utility rates.

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

The ideal times are late spring (April-May) and early fall (September-October). These periods typically offer milder, drier weather, which allows contractors to work effectively in your attic or crawl space without the extreme heat of a Missouri summer or the deep cold of winter. Scheduling during these shoulder seasons also ensures your home is prepared for peak heating and cooling seasons, and you may find better availability with local contractors.

3Are there any specific local building codes or rebates in Harrisonville or Missouri that I should know about before insulating?

Yes, insulation work must comply with the 2018 International Residential Code (IRC), which Missouri and Harrisonville follow, specifying minimum R-values for different parts of the home. More importantly, Missouri offers excellent financial incentives; Spire Missouri and Evergy provide rebates for adding insulation, and you may qualify for federal tax credits for certain energy-efficient upgrades. A reputable local installer will be familiar with these programs and can help you apply.

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

Look for licensed, insured contractors with strong local references and specific experience with Missouri homes. Verify they perform a thorough energy audit or assessment first, as proper air sealing is just as important as the insulation itself in our climate. Check for membership in local associations like the Home Builders Association of Greater Kansas City and always get detailed, written estimates that specify the type of material, R-value, and scope of work.

5My house feels drafty in winter. Could inadequate attic insulation be the main issue, and what R-value is recommended here?

Absolutely, inadequate attic insulation is a primary cause of drafts and high energy bills in Harrisonville homes. The U.S. Department of Energy recommends an R-value of R49 to R60 for attic insulation in our climate zone (Zone 4). Most older homes are under-insulated. A professional assessment can determine if you need to add more insulation on top of existing material or if air leaks around penetrations need to be sealed first for maximum effectiveness.