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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon147
    Verified insulation services reviews

Top-Rated Insulation pros in Louisville - Updated Nov 2026

Bestway Insulation, LLC
4.1(
286
)
Blown-In Insulation - Install or Upgrade

Serving Louisville, CO and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

Home Pro of the Year in 2010 (Service Magic)Home Performance Contractor of the Year for the last 8 out of 10 years. We are a company that specializes in re-insulating existing homes by using blown-in insulation and getting huge reductions on our customers energy bills by Air Sealing and compressing fiberglass or rockwool in the walls and Dense packing it tight.Where most companies are happy getting 10%energy reductions on their clients homes, we want 50% or higher. Our family has owned and operated Bestway Insulation, LLC, in Colorado since 1976. Born & raised CO. Top Rebate producer for air sealing in 2009 - 2021. Home Performance with energy star Contractor of the year 21 out of 23 Years starting with NREL when they were doing it in 1996. I want huge results for my clients.

Response time1 day
18 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Empower Insulation, LLC
Empower Insulation, LLC
5.0(
11
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Louisville, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"I had an excellent experience with Empower Insulation from start to finish. They took the time to explain all of my options, answered every question I had, and helped me choose the best insulation solution for my home. I highly recommend Empower Insulation to anyone looking for top-notch insulation services. Great company, great service, and even better results!"
Custom Home New Build
Custom Home
Custom Home
Insulation Attic
Insulation Removal

+11

Response time1 day
4 neighbors recently requested a quote
Avatar for ATTICPRO INSULATION LLC
ATTICPRO INSULATION LLC
5.0(
8
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Louisville, CO and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"I had a great experience with this insulation company. The crew showed up on time, were very professional, and did a really great job. They were friendly, worked efficiently, and left everything clean when they were finished. I’m very happy with the quality of the work and would definitely recommend them to anyone looking for insulation."
Attic Insulation
Attic Insulation
Attic Insulation
Attic Insulation
Attic Insulation

+13

40 neighbors recently requested a quote
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Insulation FAQs, answered by experts

High humidity, bad insulation, warmth from sunlight, and poor circulation are all reasons your home’s hotter inside than out. While this is what you want in the colder months, summer can become unbearable if this is a constant. Try to find the cause, but you need to remember that issues like this require a permanent fix (unless you want to bear down during the summer months).

In nearly all cases, you are required to install a vapor barrier in your crawl space. However, local regulations will change based on the local climate and the crawl space's susceptibility to moisture. Even if a vapor barrier is not legally required, it is often a good idea to keep your crawl space dry.

Insulating an unheated garage can still be worth it. For instance, insulating an attached garage can help with heat loss from your house in general, and it can also make it easier to store electronics in your garage without worrying about them being exposed to extreme temperatures.

If you use your detached garage as a workspace, insulation can still make a difference. Plus, you can use space heaters and a window unit AC to help condition the space while you work without installing heating.

Minimal maintenance is required, though regular inspections to ensure insulation hasn't shifted or deteriorated can improve performance over time.

You can buy pipe insulation materials in your local hardware store or in major home improvement stores. You can also shop for insulation online, where you may be able to more easily buy in bulk. When shopping, make sure you know your pipe's dimensions so you can buy the correct size of pipe insulation materials for your pipes.

The Louisville, CO homeowners’ guide to insulation services

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