Wall Insulation

wall insulation installation

If not properly insulated, the walls of your home can account for as much as 35% of your home's lost energy. If you think about it, exterior walls probably have the biggest impact on your comfort—they're usually the largest total area of the house that can lose conditioned air.

If you have rooms that feel drafty, too cold, too hot, but never comfortable, then your wall insulation may be a big factor. Wisconsin Home Improvement can help to assess your home's wall insulation and recommend next steps for an efficient home.

High-Performance Wall Insulation Improves Comfort

In addition to the benefit of improved energy efficiency and money savings, a good layer of insulation in the walls of your home can help make it feel cozy and comfortable all year long. Our home performance audit can identify areas in walls where insulation is missing or lacking, as well as small gaps and cracks where heat exits and adds to heating costs.

How Much is Enough Wall Insulation?

For existing homes in our area of Wisconsin, the US Department of Energy recommends R-15 to R-30 in wall cavities. The code requirements for new home construction or additions specify a minimum of R-21 in wood framed walls to meet federal efficiency standards. R-values measure the material's resistance to heat transfer; the higher the number, the less heat is allowed to pass through.

What Kind of Insulation Is Used in Walls?

In existing homes, there are two common methods for adding insulation to walls without removing wall board:

Spray Foam Insulation

This type of insulation has the ability to expand into spaces between framing, pipes, studs, vents, wiring and other home elements hidden in the walls. Spray foam is an excellent overall air barrier that reduces noise and keeps pollutants and allergens out. It also provides superior comfort and energy efficiency. Wisconsin Home Improvement uses Icynene, a closed cell spray foam.

Dense Pack

Loose fiberglass or cellulose insulation can be blown in for dense pack wall insulation. The Owens Corning Fiberglass products WHI uses are non-combustible, non-corrosive, formaldehyde-free and resistant to moisture and mold. Also applied in a dense pack method, cellulose insulation is a natural, plant-based product. Cellulose is safe, dependable and cost-effective solution.

Where in the Walls Will I Need to Insulate?

When the Wisconsin Home Improvement team conducts a home performance audit, areas in the walls and other locations in the home will be highlighted using thermal infrared imaging while the blower door test fan is operating. The imaging will show where outside air is being drawn in through gaps, cracks and leaks in the exterior envelope of the home.

Pest Removal and Wall Insulation Upgrades

Pests in your walls are not only annoying to listen to, but they can also chew through and damage your wall insulation, leaving it less effective and creating comfort, energy efficiency, and even indoor air quality issues.

Wisconsin Home Improvement partners with a local pest removal company to make solving mice, rodent, and other critter problems in your home easy. First we remove any old insulation that’s been damaged by animals. Then the area is treated to remove animal waste and prevent pests from returning. Finally, new insulation is installed—like high quality spray foam—leaving your home more comfortable, affordable to heat and cool, and pest free!

How is Wall Insulation Applied?

Our team will assess the insertion ports that will be needed to achieve complete dense pack or spray foam coverage in the walls. Most homes will be accessed on the exterior of the home. Some homes with brick, stucco or Hardie Plank exteriors may need to be accessed from interior walls. Once the insulation process is completed, these small ports are sealed.

Increase your home's comfort by installing high-performance insulation in your walls. Wisconsin Home Improvement's experienced team can help you determine where and how much you'll need. Contact us to get started!

Which insulation type is right for your home's walls?

Get in touch with us to find out!


Schedule Service

Get Started
  • Teresa

    I am so grateful for everyone at Wisconsin Home Improvement. I will always recommend you to anyone looking to have insulation services.

  • Jenny P.

    I just wanted to extend a thank you to you and all of your employees who have spent time at our home fixing our attic issues.

  • James V.

    Dear Steve, 

    We at Grace are so pleased with the quality of work and the professionalism of the crew that did the insulation. Mike and Igor were so respectful of the building and its contents, and so nice to everyone in the congregation who was working at church. 

    James V., Milwaukee, WI
  • Cindy S.

    I really feel compelled to give a "shout out" to everyone I have come into contact with at WHI. First off - Jody. You are so friendly and helpful on the phone, forgiving me for my inability to "on-line sign", switching up of dates, declining work and then changing my mind.

    Cindy S., Whitefish Bay, WI
  • Tim S.

    Steve, just a side note and I would not send this if it was not completely true - Mike and Pete were both fantastic. I was impressed. We had just had other major construction and have many comparatives for the work WHI did. I would come home and never know they had even been there.

  • Mike & Erin M.

    We wanted to provide feedback on our experience with Peter, who did our home energy audit.  We felt he went above and beyond what was expected of him.  He was very thorough and was genuinely concerned about any issues causing inefficiencies in our home.  He explained things in terms we... Read More

  • I wanted to thank you and your team again for the
    great work you did and insulating our home. It is only been a week, and the
    difference is amazing. Every room in this house feel substantially warmer.

  • Your employees were prompt, courteous and friendly.

    Lois W., Menomonee Falls, WI
  • Thursday and Friday of last week one of your crews were at my home putting in some additional insulation and doing some other work. I just wanted to tell you that my wife and I were very impressed with the professionalism of your men.

    John & Jennifer P., WI
  • Please thank your crew for the great job they did here. They were all very personable, worked very hard, and they took the time to explain what they were doing.

    Barbara F., Belgium, WI
  • Jan and I were amazed and impressed by the crew’s positive work ethic coupled with their gracious and friendly manner. Obviously they knew what they were doing and set to task with quickness and absolute thoroughness… you have our deepest appreciation.

    JoAnne and Jan V., Greendale, WI
  • The work your team did is fantastic! Also I would like to compliment your crew on their professional approach to our house and their work.

    Ryan, WI
  • Steve and Frank are very good representations of your firm -- very professional. Thanks!

    Jim Young, WI
  • We were pleased with work done by Mike and Kevin. They deserve a pat on the back. Thanks!

    Eugene Hefter, WI
  • I just wanted to take a minute to thank you and your Madison crew for the great work they are doing. Over the last few months I have worked closely with Dann, Roger, Marc and Jeremy and am extremely impressed with their attitudes and the quality of their work.

    Brandon Langeteig, Project Home, Inc.
Save up to 73% off insulation, air sealing & ventilation packages while incentives are still available!