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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon28
    Verified insulation services reviews

Top-Rated Insulation pros in Louisville - Updated Nov 2026

Avatar for Primary Home Improvements
Primary Home Improvements
5.0(
27
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Louisville, OH and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"They arrived on time, it took about 2.5 hours, there is at least 18 inches or more of insulation, and I cannot wait to see the difference in the temperature in the house! Next weekend will be to do blown in insulation in the walls! Many thanks to owner Mike DePasquale and Energy Consultant Kevin Sweeney!"
RetroFoam Injection Foam Insulation
RetroFoam Injection Foam Insulation
Primary Home Improvements Insulation Crew
Primary Home Improvements Insulation Crew
Primary Home Improvements Insulation Crew

+3

Response time10 hrs
Response rate88%
18 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.7(
255
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Louisville, OH and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"I felt very comfortable throughout the whole process from the sales to the install of my roof. The project managers, Walter and devan, were very knowledgeable during the install and made sure we didn’t have any questions. Overall very pleased with everything"
Roofing
Roofing
Roofing
Roofing
Roofing

+82

Recommended by86%of homeowners
Avatar for Pally Roofing LLC
Pally Roofing LLC
4.2(
14
)
Blown-In Insulation - Install or Upgrade

Serving Louisville, OH and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

"I our roofing consultant Steve was excellent and explaining insurance all that needed to be done is very knowledgeable about his job and we appreciate all the things that he did for us. He was very polite and courteous, and I always had a smile on his face.. all of the work was done in a timely manner and that is why I gave them a five star and we recommend this company to anyone who needs roofing work or replacement. The crew cleaned up after themselves and make sure there were no nails or old shingles on the ground before leaving."
Repairs
Flashing
Gutters
Roof
Roof Repair

+4

Response time8 hrs
Response rate98%
53 neighbors recently requested a quote
Avatar for PURE SEAL INC
PURE SEAL INC
4.7(
27
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Louisville, OH and surrounding areas

In business since 2004

Credit card accepted

"We scheduled them for a particular week months in advance as the project was on a tight timeline. They could not start until after the demo upstairs and had to be done before HVAC installers showed up. Everything was completed on-time and the price paid was as quoted despite having to make a few changes to the plan once the walls were opened. Fantastic company. They want to do a good job and it shows. We were concerned about residual odors from spray foam but there are none. Most importantly the house retains heat with way less fuel burned! We heat primarily with wood and used to have temps drop >20 degrees from the moment we loaded up the stove before bed until waking. Seriously, the fire would burn for hours with the house at 75 degrees after we got in bed, but when we woke, it was 53 inside the house. Now with similar outside temps we don't bother to load up the stove before bed and we wake up it is maybe 8 degrees cooler. I love a morning in the mid-60s compared to the low-50s INSIDE my house in the winter. If you are going to retrofit your house with spray foam insulation, it is a huge and messy job, so be prepared for that. There are little bits of spray foam you have to clean up later, in the driveway, yard, house. You have to live somewhere else for at least 24 hours, but we stayed away almost a week while odors decreased. We had one issue where the AirKrete leaked through the inside of the house wall in 3 location and was not noticed by the crew. We came home to see the job they did and found globs of hardened foam hanging down the walls in these locations. I called Torsten and he reported this had not happened before, most houses don't have holes in walls on the inside, and had they seen it they would have cleaned it up. He came on site and helped me clean it up and apologized, which went a long way with me."
Applying Spray Foam
Pumping Air Krete
Finishing the Job
Recommended by91%of homeowners
Avatar for Koala Insulation of Summit
Koala Insulation of Summit
4.9(
12
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Louisville, OH and surrounding areas

In business since 2021

Free estimates

Warranties offered

"The customer service was outstanding. When I getting a quote from them, Justin had answered all my questions and I felt well informed when making my choice of insulation. At the day of install, the installers were on time, quick, and left my house as clean as when they got there."
Batt Rolled Insulation
Blown In Insulation
Spray Foam Insulation
Response time9 hrs
Response rate93%
Recommended by100%of homeowners
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Insulation FAQs, answered by experts

Insulating windows without plastic is usually the better method. Outside of simply replacing your windows, you could buy cellular shades, which trap air between the window and the home, add a window film that blocks UV rays and traps heat, or cover your windows with a low-emissivity coating called “low-E.”

Blown-in insulation works, but only for unfinished attics. Also, it isn’t the longest-lasting nor the most effective option. For better options, look into spray foam insulation or natural fiber batts. They typically have a longer lifespan, better heat resistance, and stronger sound-proof abilities. Spray foam insulation costs about $1.25 to $1.50 per square foot, but can go up to more than $4 per square foot. Fiber batt pricing varies depending on the material.

The benefits of insulating your pipes include preventing freezing, sweating, and condensation. In addition, insulating your pipes can make your home more energy-efficient by keeping your pipes from losing or gaining heat. You’ll be able to turn the temperature of your water heater down by two to four degrees Fahrenheit. According to the U.S. Department of Energy, this can reduce energy costs by 3% to 4% per year.

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.

The thickness of floor insulation will depend on the R-value you plan to achieve. R-value varies on the type of material as well as its thickness and density. Insulation materials with low R-values can be layered to match the value of denser materials. As long as your floor insulation is packed tightly, seals the area from drafts, and doesn’t prevent ventilation, it can be as thick (or thin) as you need.

The Louisville, OH homeowners’ guide to insulation services

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