Residential Insulation Contractor
Madison, WI
Duerst Insulation Technicians
Locally owned and operated for over 20 years, Duerst Insulation focuses on effective, long term insulation solutions.
We use a research-based approach to identify the root problem and apply a lasting result. Whether that’s a chilly home, high energy bills, moisture issues, or renovations and new construction.
We’re based just northwest of Madison, WI and service approximately 50 miles (click here for approximate map).






Automatic
State Rebates & Incentives
Many (though not all) Wisconsin insulation projects are eligible for hundreds of dollars in rebates through the state’s Department of Energy. We typically are able to help at least one client capture a rebate each week.
We are certified to implement these rebates and complete nearly all the paperwork for you. We even instantly discount the rebate from your invoice, so you’re not left waiting for the rebate check to arrive.
Know YOUR Numbers
Planning with general numbers often leads to inaccurate estimations and budgets. That’s one of the many reasons we offer free estimates. Whether you need a quick fix or are planning for work next year, work with actual numbers specific to you.
Learn More About Insulation
Comfort & Efficiency
Discomfort at home is draining
Your home is your corner of the world—you should be comfortable in it. Whether you want home to actually feel like the temperature on the thermostat or lower heating bills for years to come, insulation is the answer. It doesn’t hurt that, on average, each house we work on reduces emissions equivalent to permanently removing a car from the road.
Financial Returns
Better than the stock market
If you plan to live in your home for awhile, improving insulation yields better returns than the stock market. A huge portion of energy consumed in the Wisconsin home goes to heating, and better insulation reduces that expenditure considerably. It doesn’t take many winters for the insulation to pay for itself, and after that it’s money in your pocket.
Reduce Mold & Pests
Good insulation does more
Surprisingly, most moisture (condensation) develops in homes due to insulation and air sealing issues. This is because of dew points and humidity. Rodents and pests often travel through insulation to get inside.
The right insulation does more than insulate. It protects your family and home from safety hazards while repelling unwanted visitors.