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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 Seneca, 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."
Additional Photos
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+14

Response time11 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Attic Pro
Attic Pro
5.0(
43
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Seneca, 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 Home Genius Exteriors
Home Genius Exteriors
4.7(
263
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Seneca, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Devan, Lauren and Brendan were my main points of contact with Home Genius Exteriors and they showed professionalism and personality throughout the whole process. Both Brendan and Devan spent time taking to me, even after our business was concluded, this was an exceptional experience and I highly recommend Home Genius Exteriors and all their employees."
Recommended by87%of homeowners
Avatar for Home Comfort, Inc.
Home Comfort, Inc.
4.9(
157
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Seneca, IL and surrounding areas

In business since 1948

Emergency services offered

Credit card accepted

"Very established company with dedicated, respectful, courtesy employees. One of their products is blown-in insulation. We had them insulate our attic, foundation, and a crawl space under a room which gets cold during winter months. Our home is a large L-Shaped Ranch. It has made a difference in heating of our home. We had them take the old insulation out of the attic, which they vacuumed into bag and hauled away. Home Comfort also offers repair of driveways, where cracks have either sunken or raised the concrete. They repaired the few spots in my driveway, making it where someone won't trip on the crack and fall. I definitely recommend Home Comfort Insulation."
Response time11 hrs
Response rate94%
Recommended by87%of homeowners
Avatar for Neil Umphress construction
Neil Umphress construction
4.9(
22
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Seneca, IL and surrounding areas

In business since 2000

Emergency services offered

Warranties offered

"Neil Umphress explained exactly how he would complete the installation of insulation in my attic including the type of material he would use. When a problem was encountered he discussed how it could be handled and left the decision to me. They worked all day with a lunch break Then another problem occurred and I thought they wouldn’t be able to finish in a day, but they pushed through, cleaned up and even insulated an area that was not in the contract just because it needed it. I have more work and will definitely call Neil Umphress to do it."
Blown-in
blown-in
insulation
blown-in insulation
blown-in

+11

Response time11 hrs
Response rate92%
Recommended by52%of homeowners
Showing 1-10 of 28
Insulation questions, answered by experts

Unfaced wall insulation is easier to cut and install, making it the better choice for a DIY project. It’s also more affordable. But if it’s unfaced, you’ll likely need to add a vapor barrier to reach your desired R-value and efficiency, as it doesn’t offer any moisture barrier.

Faced insulation uses paper or foil to create a built-in barrier and doesn’t require an extra step. It’s also more fire-resistant and safe. But it’s quite a bit more expensive and a little bit harder to work with as a DIYer.

Rockwool insulation can last up to 100 years, but just how long this insulation lasts in your home depends on how well it's maintained. Poorly installed insulation may last only 30 years, so be sure to regularly inspect your home's insulation for water damage, settling, and pests to give your insulation the best chance of having a long lifespan.

Structural insulated panels and rigid foam boards have the highest R-value of any insulation that contractors commonly use, with R-values reaching up to around 8.0. These types of insulation are best in extremely cold climates, but they’re generally preferred for new construction, as they can be challenging to retrofit. Blown-in and loose fill insulation provide the next best insulative value, provided the installation is done properly. It’s important to choose an insulation type that meets your needs based on climate, as maximizing R-value may not always be financially worthwhile if you live in a moderate climate.

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.

Each of the three types of wool insulation has particular disadvantages. While their R-value is higher, they all cost more than fiberglass versions. Installing mineral wool and sheep wool requires protective gear. Because of its vulnerability to insects, chemicals are used in its production. Hemp wool is more costly to install than other types because additional tools and labor are involved.

The Seneca, IL homeowners’ guide to insulation services

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