Residential Attic Insulation Services
Up to 40% of your home's heat escapes through the attic. If your home is more than 10 to 15 years old, there's a good chance it's under-insulated, and you're paying for it every month on your energy bill. Our blown-in fiberglass insulation brings your attic up to Wisconsin's recommended standards, keeps your home comfortable year-round, and protects your roof from ice dam damage.
No Obligation. Always Free.
The Attic Is Where Most Homes Lose the Most Energy
Security-Luebke Roofing has been installing attic insulation in Northeast Wisconsin for over 15 years. We use blown-in fiberglass and install it to the R-49 to R-60 levels the Department of Energy recommends for homes in this region. Homeowners typically see 15 to 25% savings on heating and cooling costs after installation.
Lower Energy Bills
Proper attic insulation reduces heat transfer in both directions, keeping warmth in during winter and blocking solar heat gain in summer.
Healthier Home
Sealing off the attic from the conditioned living space reduces drafts, dust, allergens, and moisture — the conditions that lead to mold and wood rot.
Proven Expertise
15+ years of attic insulation experience in the Fox Valley, backed by 90+ years of residential service in Northeast Wisconsin.
Solutions that Fit Your Needs
Security-Luebke gave us first class service. He presented his findings, which also included our need for insulation, and gave us a proposal that day. We went with his proposal, and the wheels started moving.
Elliot,
Fox Valley Homeowner







Why choose Security-Luebke Roofing?
75,000+
Homeowners Served
15–25%
Average Savings on Heating & Cooling Costs
12 Months
Zero Interest Payments Available
15+ Years
of Attic Insulation Experience
From the start, the people at Security-Luebke Roofing were wonderful. They explained everything about the material used, the installation, and the price. This is the best company I have ever worked with.
Alice,
Fox Valley Homeowner
Financing to Support
Start your attic insulation project today with flexible, affordable financing from Security-Luebke Roofing. Making your investment simple, manageable, and within reach, you may qualify even for a Wisconsin Focus on Energy rebate on top of it.
No Obligation. Always Free.

Warranties that Last
Every attic insulation installation is backed by coverage that protects your investment and gives you confidence in the work we do.
Workmanship Warranty
Our installations are backed by a workmanship warranty covering defects in how the job was performed. If something we did causes a problem, we fix it.
Material Performance
Blown-in fiberglass maintains its R-value over the long term without settling, compressing, or degrading, so the performance you get on day one is the performance you keep.
Get Started Quickly and Easily
Request a Free Estimate
Fill out a form or give us a call. We’ll get someone out to your property as soon as possible.
Property Assessment
A member of our team will inspect your property, determine your needs, and answer any questions you have.
Contract Signed
Our straightforward process lets you decide when you’re comfortable. No pressure, just a clear proposal and a timeline that works for you.
Work Starts
After you’ve made your decision, a member of our customer care team will inform you when we can start your project.
No Obligation. Always Free.
Frequently asked questions
How do I know if my attic needs more insulation?
The most common signs are high heating and cooling bills, rooms that are hard to keep at a consistent temperature, drafts near the ceiling, or ice dams forming along your roofline in winter. If your home is more than 10 to 15 years old, it's worth having someone take a look, most older homes fall well short of current energy standards.
How much insulation does my attic need in Wisconsin?
The Department of Energy recommends R-49 to R-60 for attics in Wisconsin's climate zone. If you don't know what your current level is, our inspection will measure it and tell you exactly how far you are from where you should be.
Why do you use blown-in fiberglass instead of cellulose?
Fiberglass resists moisture, doesn't settle or degrade over time, and holds its R-value for the life of the home. Cellulose can absorb moisture in humid conditions, settle over time (which reduces its effectiveness), and break down into organic particles that affect air quality. For Wisconsin's climate with cold winters and humid summers, fiberglass is the more reliable long-term choice.
How much can I save on energy bills after insulating my attic?
Most homeowners in Northeast Wisconsin see 15 to 25% savings on heating and cooling costs after bringing their attic insulation up to recommended levels. The actual amount depends on how under-insulated your home was to begin with and how tightly the attic is air-sealed.
How does attic insulation prevent ice dams?
Ice dams form when heat escapes from living spaces into the attic, warms the roof deck, and melts snow from underneath. That water then refreezes at the cold eaves, backing up under shingles and causing leaks and water damage. A properly insulated attic keeps heat where it belongs in your home, so the roof stays cold and snow melts evenly instead of pooling at the edge.
Are there rebates available for attic insulation in Wisconsin?
Yes. Wisconsin's Focus on Energy program offers rebates for qualifying attic insulation upgrades. Many homeowners in the Fox Valley and Greater Green Bay area are eligible, and blown-in fiberglass installations typically meet the program's requirements.
How long does installation take?
Most attic insulation projects are completed in a few hours. Blown-in fiberglass is quick to install. It's lightweight, distributes evenly, and doesn't require extensive prep time. You won't be dealing with a multi-day project.
Does attic insulation affect my roof or void any warranties?
Proper attic insulation actually supports your roof's longevity by preventing ice dams and reducing moisture in the attic space. It does not affect roofing warranties. In fact, if you're replacing your roof and attic insulation at the same time, the two work together to create a more durable, energy-efficient system.
Work with the oldest exterior contractor in the Fox Valley
Contact Security-Luebke Roofing today for a free, no-obligation attic inspection and find out exactly what your home needs. Generations of Northeast Wisconsin homeowners have trusted us since 1934; we'd be glad to earn your trust, too.

