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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon122
    Verified insulation services reviews

Top-Rated Insulation pros in Merrillville - Updated Nov 2026

Avatar for Attic Pro
Attic Pro
5.0(
44
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Merrillville, IN and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"We recently had blown in insulation installed in our home and couldn’t be happier with the experience from start to finish. The team was kind, professional and incredibly prompt. They showed up on time explained the process clearly and treated our home with respect. What really stood out was the pricing after receiving a much higher quote from another company their estimate was very fair and transparent with no pressure or upselling. It was clear they care about doing honest work at a reasonable price. The installation was completed efficiently, and the whole process was smooth and stress-free. I would definitely recommend them to anyone looking for insulation work great service, great value and great people."
Response time8 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for NM Enterprise's Energy Solutions
NM Enterprise's Energy Solutions
4.9(
52
)
Blown-In Insulation - Install or Upgrade

Serving Merrillville, IN and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"nick and his crew were experienced and very knowledgeable in their product and the job they are hired for. I like the quick communication and the being on time when it came to perform the job. I would highly recommend hiring NM Enterprises for any job that has to do with insulation. Very professional and they take pride in doing a great job for their customers. Also, did items beyond what they were hired to do like, rerouted my kitchen vent that the builder or roofers did not vent through the roof, also removed some items that were left in attic from another owner. Again, i recommend hiring NM Enterprises for your next insulation job."
Response time8 hrs
Response rate98%
6 neighbors recently requested a quote
Avatar for Spray Foam Genie of South Bend
Spray Foam Genie of South Bend
4.9(
14
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Merrillville, IN and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"I recently used the spray foam from Spray Genie South Ben, and I couldnâ t be more satisfied with the results. The application was smooth, and the foam expanded perfectly, providing excellent insulation and coverage. I highly recommend their spray foam to anyone looking for reliable, high-quality insulation products. The product performs exactly as advertised, and the results speak for themselves!"
Barn (1)
Barn (1)
Barn (1)
Workshop
Walls

+6

Response time2 days
Response rate97%
41 neighbors recently requested a quote
Avatar for Hawx Insulation- Chicago
Hawx Insulation- Chicago
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving Merrillville, IN and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

At Hawx Pest Control, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. Hawx Premium Pest Control will treat your pests, mosquitos, and more- then keep them away for good. If pests come back between treatments so will we, at no additional cost to you. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote. \n

17 neighbors recently requested a quote
Recommended by75%of homeowners
Dap & Son Insulation and Radiant Bearing
4.4(
89
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Merrillville, IN and surrounding areas

In business since 1999

Free estimates

Credit card accepted

"David and team did a fantastic job. I had 30 year old attic insulated. Old insulation removed and reblown in. David sealed around ceiling lighting, gaps where mice had gained entrance, sealed around windows. They were reliable, efficient, personable, cost effective, and most of all listened to our problems for resolution. We were pleased that we hired DAP and Sons."
Response time5 hrs
Recommended by90%of homeowners
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Insulation FAQs, answered by experts

In some cases, yes, insulating an unheated garage can lead to mold and mildew. The issue with insulating a garage is that the interior will warm up and cool down more slowly than the exterior air, which can cause condensation inside the space. Where there is moisture, there is likely to be mold and mildew over time. Installing a vapor barrier can help avoid moisture and mildew problems in an insulated garage.

Fiberglass is considered a favorite garage insulation choice due to its combination of affordability, ease of installation, and overall effectiveness. Fiberglass provides good thermal resistance, helping regulate garage temperatures and minimize heat transfer. Additionally, fiberglass is moisture-resistant, reducing the risk of mold or mildew formation.

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.

The R-value is a rating that measures an insulation's thermal resistance—in other words, how well it insulates. A higher R-value provides more protection for your pipes, and all pipe insulation materials should have an R-value listed on the product description or label. Each insulation type has its own R-value, which typically falls between one and five for most pipe insulation. When making a selection, Energy.gov recommends choosing a pipe wrap that is at least one inch thick, and the International Code Council (ICC) suggests choosing a material with an R-value of at least 3.

One of the disadvantages of soffit vents is they can bleed warm air from the attic during winter, resulting in slightly higher energy bills and a colder house. There are ways to mitigate this effect—mostly just closing the vent in the fall. What’s most important is your attic is ventilated to some degree in the winter.

The Merrillville, IN homeowners’ guide to insulation services

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