Everything you want to know about wall insulation

Should I insulate my walls?

Your walls account for the majority of your home’s exterior surface. Compared to your attic the insulation in your walls has the most significant impact on the price of your utility bills. Inadequate wall insulation or insulation that has gaps in coverage can make it difficult to control the climate inside of your home consistently.

Everything you want to know about wall insulation

What does it cost to insulate a home’s exterior walls?

There are many factors to consider when you talk about the cost to insulate your home. The material you use is only part of the cost. Does the old insulation need to be removed? How much insulation do you need to get the right R-value? Without the answers to these questions and more, it is difficult to provide an accurate estimate of your project’s costs.

Wall Insulation Can Pay For Itself!

Beyond the cost of the installation project, there is the money you are losing each month in heating and cooling bills.

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Walls lacking in proper insulation can allow nearly half of all air generated by your furnace or A/C to escape from the home. Adequate wall insulation will lead to a reduction in thermal transfer and can reduce a homeowner’s utility bills by as much as 66%!

The right levels of insulation will stop thermal loss and lead to energy savings each month that will offset the cost of the project.

What R-value do I need for my attic?

When it comes to Michigan homes, the recommended R-Value for wall insulation is R21 or greater. While most homes have their walls insulated with some materials during construction, it can often be material with a low R-value or even a tendency to settle and leave gaps near the tops of the walls. Gaps left from insulation that settles or does not fully seal the areas around windows or door frames can make it difficult to control your home’s interior climate.

What is the best type of insulation for walls?

The best insulation to use on your walls depends on the current state of your walls during installation. If they are sealed up and finished walls then dense pack would be a cost-saving option. Are they open cavity? Then perhaps a spray foam would be better. The insulation experts at Pro can help you determine what is the best option for your unique project. Pro currently offers four types of insulants that can help slow the loss of thermal energy from your home’s attic.

Stabilized Cellulose

Stabilized cellulose is our exclusive blown-in insulation. The stabilized nature of this product means that it is guaranteed not to settle or shift, meaning you will have proper coverage for decades to come. Made from 100% recycled materials this insulant is the greenest product we use.

Dense Pack

Have finished walls and want to upgrade their R-value without the need for costly repair work on your walls? Dense pack cellulose insulation is the answer. By drilling small, easily sealed, holes in the exterior of your home we can blow our stabilized cellulose directly into your home’s walls. Meaning we can tightly fill each cavity of a finished wall without needing to remove sections of the wall for access.

Cellulose Insulation


Fiberglass insulation is available as loose-fill and batt. The most common form of insulation used in Michigan homes. You may recognize it from the unique pink color. It is made of glass fibers that are woven together with a binder. This gives the insulant a wool-like texture.

Fiberglass insulation


Denim insulation is available as loose-fill and batt. This insulant is made using excess materials from denim factories. The product is completely recyclable and has a low waste production process. It also does a better job of noise reduction over other insulants.

Denim insulation

Spray Foam

Spray foam insulation is available as open-cell and closed-cell. This form of insulant gives the best permanent coverage out of all the options. This product is a foam that expands onto the surface it is sprayed on. This will seal up all spots where drafts may be coming from.

Spray Foam Insulation

Can you over insulate a house?

Yes, you certainly can put too much insulation into the walls of your home. Too much insulation can create issues with trapping moisture within your walls. Proper airflow is as important as having the proper R-value. Without it, you can end up with mold and a loss of indoor air quality.

Do your wall insulation contractors offer services near me?

Pro Home Improvement’s offices are located in Ferndale, MI, and we regularly provide wall insulation services to residents all over Metro Detroit. From Flint to Ann Arbor, we have proven ourselves as the best choice in insulation contractors.

When you are ready to discover the many benefits of our Pro Grade Wall Insulants, please call us at 888-PRO-1998 (888-776-1998) and request a FREE no-pressure insulation estimate.

What Our Insulation Customers Are Saying

  • Awesome experience, from the beginning estimate with Phillip, to actually having the work performed. The work was performed as promised, approximately 2 hours, and cleaned up afterwards. Thank you!!

    — Michael K in Taylor, MI

  • I was very happy with the installers, they were on time and very efficient. They did a great job and cleaned up after themselves. I am very happy with the work that was done. The insulation has helped 100%. I would recommend your company to other people. I feel your prices were reasonable for the work that was done.

    — Betty S in Garden City, MI