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TRUSTED BY JOLIET, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon127
    Verified insulation services reviews

Top-Rated Insulation pros in Joliet - Updated Nov 2026

Avatar for Weather Shield Insulators
Weather Shield Insulators
5.0(
27
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Joliet, IL and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"We badly needed insulation in our attic. We got three quotes. Weather Shield was not only the most reasonable, but the only company in which the owner both gave us the quote and installed the insulation with colleague. We could not have asked for more professionalism or better service. Would highly recommend Gus."
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+14

Response time11 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Attic Air
Attic Air
4.9(
257
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Joliet, IL and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"It went really well. Robert Carroll really knows his stuff. Hire this guy. I say that without reservation of any kind. Don't look any further, believe me, I did. This is the smartest guy. He is honest, dependable, offers fair pricing, and his team can do all the work. I got several estimates from A+ rated insulation companies, but Robert was more knowledgeable than the other companies. He was the only one to point out that my soffits were not vented. Apparently, my house was built on the day no one was inspecting. The builder never cut open the soffits. That meant there was zero airflow going through my attic. The attic fan could run all day, but without air to move, it would not do any good. Only Robert noticed this and offered a solution to fix the problem! I asked some of the other A+ companies if they would vent the soffits and they all said they don't do that work, but they would be happy to add more insulation, which would not fix the problem if the attic was not vented."
Response time2 days
4 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Attic Pro
Attic Pro
5.0(
44
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Joliet, IL and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I had a great experience with Attic Pro. From start to finish, their team was professional, knowledgeable, and respectful of my home. They did an excellent job removing the old attic insulation and replacing it with high-quality insulation products designed to improve energy efficiency. The crew worked efficiently, kept everything clean, and took the time to explain what they were doing and why it would make a difference. You can tell they take pride in their work and care about doing the job right. I’m very happy with the quality of the work and the overall experience. If you’re looking to replace old attic insulation, improve your home’s energy efficiency, and have the job done by a professional company, I would definitely recommend Attic Pro!"
Response time8 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Arcos Environmental Services, Inc.
Arcos Environmental Services, Inc.
4.4(
16
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Joliet, IL and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

For the last 15 years, Arcos Environmental Services, Inc. has been serving as a general contractor for government weatherization programs. As we have continued to grow, we have created the subsidiary Arcos Pro Services to serve as our residential division of insulation installation using the same professional and detailed work. We are committed to giving homeowners a peace of mind in regards to their home's energy efficiency. \n \nArcos is also a Nicor Gas Contractor Circle member meaning finished upgrades to your home may qualify you for up to $1,250 in rebates as well as tax incentives. Check out our website for more information! \n \n

Air Sealing
R49 Blown In Insulation
Before work
pre insulation levels
In the procees to allow attic walkway

+3

Response time1 day
97 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,537
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install+1 more

Serving Joliet, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"I'm proud to hear my son, Robert Wolfrum, is working for Perma-Seal. I first used Perma-Seal in the 80's for a foundation crack repair in our South Holland, IL home and then again at our Tinley Park, IL home. Both experiences were memorable and professional and fixed our basement water problems. It is good to know that my son is working for a reputable company that has been doing quality work for decades. I was surprised to hear that they do insulation and concrete leveling."
Thermal imaging
Blower door test
Old insulation removal
New blown insulation
Perma-Seal Attic Insulation

+48

Response time1 day
Response rate100%
47 neighbors recently requested a quote
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Showing 1-10 of 127
Insulation FAQs, answered by experts

Upgrading insulation in Joliet can enhance your home’s value and attract buyers seeking energy efficiency and lower utility bills. Well-documented improvements, such as new attic insulation or air sealing, provide reassurance about comfort and long-term savings. Energy-efficient features are especially appealing in areas with harsh winters, and combining insulation upgrades with other efficiency improvements can further boost your home’s market appeal.

Helpful?

After insulation installation in Joliet, schedule any required inspections and test your HVAC system to ensure optimal performance. Monitor attic and crawl space humidity to prevent moisture buildup, and check for proper ventilation. Keep all project documentation for potential rebates or tax credits. Review your energy bills over the next few months to confirm improved efficiency, and plan annual inspections to catch settling or other issues early.

Helpful?

Before starting an insulation project in Joliet, schedule a detailed energy audit to identify specific areas needing improvement, such as attic insulation or air sealing. Inspect for moisture or ventilation problems, and address any existing mold or pest issues. Confirm your HVAC system is properly sized for your home’s new insulation level. Always verify contractor licensing and insurance, and ask about local permit requirements to prevent project delays.

Helpful?

In Joliet, unexpected costs often arise from discovering moisture damage, outdated wiring, or insufficient attic ventilation during insulation upgrades. Additional expenses may include removing old insulation containing hazardous materials, repairing structural issues, or addressing pest infestations. Sometimes, improving attic access or relocating stored belongings is necessary. Seasonal weather can also impact project timelines, potentially increasing labor needs or requiring temporary protective measures.

Helpful?

New homeowners in Joliet should prioritize upgrading attic insulation to improve energy efficiency and prevent ice dams during winter. Next, focus on insulating crawl spaces or basements to guard against cold floors and moisture. Sealing gaps around windows, doors, and utility penetrations is also essential. For homes built before 1980, consider wall insulation and ductwork sealing to address common heat loss and comfort issues.

Helpful?

The Joliet, IL homeowners’ guide to insulation services

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