The Best Insulation Contractors in Merrillville, IN

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

#1

Koala Insulation of Merrillville

4.9
(120 reviews)
Verified

A highly-rated, modern insulation contractor known for its strong focus on customer education and energy efficiency. They offer a comprehensive suite of services including free estimates and use advanced diagnostic tools. Their strong digital presence and consistently excellent reviews indicate a high level of customer satisfaction.

7085 Broadway, Suite 2C, Merrillville, IN 46410

Specialties & Features

Spray foam insulation
Blown-in attic insulation
Insulation removal and replacement

Business Information

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

All Weather Seal of NWI

4.7
(250 reviews)
Verified

A well-established company serving Northwest Indiana for decades. While they have a broad focus on home exteriors (siding, windows), their insulation division is robust and professionally managed. They are often recognized for their expertise in air sealing and energy audits, making them a strong choice for whole-home efficiency improvements.

9200 Louisiana St, Merrillville, IN 46410

Specialties & Features

Energy efficiency audits
Air sealing services
Attic insulation installation and upgrade

Business Information

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

A-1 Insulation

4.6
(80 reviews)
Verified

A reliable, local contractor with a long history in the region. They are a more traditional insulation company with a strong reputation for quality workmanship in both residential and commercial projects. They are a good choice for standard insulation upgrades, wall insulation, and basement/crawl space projects.

(Serves from a nearby base) Effectively serves Merrillville from the greater Northwest Indiana area.

Specialties & Features

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

Business Information

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

Why These Are the Top Insulation Contractors in Merrillville

The insulation market in Merrillville, Indiana, is competitive and service-rich, reflecting the region's climate with cold winters and humid summers, which drives demand for energy efficiency. The market is composed of a mix of long-standing local contractors and newer, specialized franchises. The average quality is high, as companies must adhere to strict Indiana building codes and are often knowledgeable about local utility rebates (e.g., from NIPSCO). Competition is strong, which benefits consumers through competitive pricing and a focus on customer service. Typical pricing varies significantly by project type. As a general guide: * **Blown-in Attic Insulation:** $1,500 - $3,500 * **Spray Foam Insulation (roof deck):** $4,500 - $7,500+ * **Wall Insulation (blown-in):** $2,000 - $4,500 * **Air Sealing Audit & Service:** $500 - $1,500 Consumers are advised to obtain multiple free estimates and verify that contractors are properly licensed and insured before proceeding with any work. The top providers distinguish themselves through certifications (like BPI - Building Performance Institute), transparency in quoting, and a clear focus on improving home comfort and reducing energy bills.

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 Merrillville regulations and climate

Frequently Asked Questions About Insulation in Merrillville

Get answers to common questions about insulation services in Merrillville, Indiana.

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

For our Northwest Indiana climate with cold winters and humid summers, blown-in fiberglass or cellulose in attics is often the most cost-effective upgrade. These materials provide excellent thermal resistance (R-value) and help seal air leaks, which is crucial for managing both heating costs in winter and humidity/moisture issues in summer. Spray foam offers superior air sealing but comes at a higher upfront cost, though it can be a worthwhile long-term investment for older homes with significant drafts.

2When is the best time of year to get insulation installed in Merrillville?

The ideal times are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather, which is important for proper installation of most materials and allows for adequate attic ventilation during the work. Scheduling during these shoulder seasons also helps you prepare your home for the peak heating and cooling demands of our Indiana winters and summers, and you'll find greater contractor availability compared to the height of summer or winter.

3Are there any local rebates or incentives for insulation upgrades in Lake County, Indiana?

Yes, Merrillville residents should first check with the Northern Indiana Public Service Company (NIPSCO) for their current energy efficiency rebate programs, which often include incentives for adding attic or wall insulation. Additionally, the federal tax credits for energy efficiency improvements (like insulation meeting specific R-value requirements) are applicable and can provide significant savings. It's always wise to ask your local contractor, as they are usually up-to-date on the latest available incentives.

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

Look for a licensed, insured contractor with specific experience in Indiana's climate zone. Ask for local references in towns like Crown Point, Hobart, or Schererville, and verify their membership with organizations like the Insulation Contractors Association of America (ICAA). A trustworthy provider will perform a thorough energy audit or assessment, explain the recommended R-values for our region (Zone 5), and provide a detailed, written estimate that includes air sealing—a critical component for our weather.

5My attic has old insulation. Is it necessary to remove it before adding new insulation in Merrillville?

Removal is only necessary if the existing insulation is wet/moldy, contaminated by pests, or is vermiculite (which may contain asbestos). For most homes in the area, if the old insulation is dry and settled material like fiberglass or cellulose, new insulation can often be installed right over the top to achieve the recommended total R-value of R-49 to R-60 for attics in our climate zone. A professional assessment is key to determine if moisture issues from our humid summers need to be addressed first.