Insulation Contractor Serving Madison, Dane County & South-Central Wisconsin

Insulation Done Right. Comfort That Lasts.

Duerst Insulation Technicians provides professional attic insulation, wall insulation, air sealing, insulation removal, energy audits, soundproofing, and concrete lifting for homeowners throughout Madison, Dane County, and South-Central Wisconsin.

Over 25 Years in Business | Over 40 Years of Experience | Locally Owned & Operated | Rebate Guidance

You May Qualify for Energy-Saving Rebates

Many insulation and air sealing projects may qualify for Focus on Energy and other Wisconsin energy-efficiency rebates. Our team helps homeowners understand available rebate opportunities and apply qualifying rebates directly to project costs whenever possible.

We Provide Your Rebates Up Front

In the past 5 years, Duerst Insulation Technicians has helped our customers receive over $1,000,000 in REBATES!

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Make Your Home More Comfortable, Efficient & Affordable to Heat and Cool

Is your home too cold in the winter, too hot in the summer, drafty, noisy, or expensive to heat and cool? Poor insulation and air leaks are often the problem.


Duerst Insulation Technicians helps homeowners improve comfort, reduce energy waste, and make their homes perform better year-round. From attic insulation and air sealing to wall insulation, basement insulation, insulation removal, and concrete lifting, our team provides practical solutions built for Wisconsin homes.


We serve Madison, Dane County, and surrounding South-Central Wisconsin communities with experienced service, honest recommendations, and rebate guidance that helps homeowners get more value from their energy-efficiency upgrades.


Your Home Should Be Comfortable in Every Season

Wisconsin homes deal with freezing winters, humid summers, ice dams, drafts, uneven rooms, and rising utility costs. If insulation is missing, damaged, compressed, or poorly installed, your heating and cooling system has to work harder than it should.

Common Problems We Help Solve

Duerst Insulation Technicians helps homeowners solve comfort, efficiency, and home performance problems such as:

  • Drafty rooms
  • Cold floors
  • Hot upstairs bedrooms
  • High heating and cooling bills
  • Ice dam concerns
  • Poor attic insulation coverage
  • Air leaks around ceilings, walls, and basements
  • Noisy rooms or shared walls
  • Old, damaged, or contaminated insulation
  • Uneven or sunken concrete around the home

Save More with Wisconsin Insulation Rebates


Insulation and air sealing upgrades can make your home more comfortable while helping reduce wasted energy. Many qualifying projects may also be eligible for rebates through Focus on Energy and other home energy-efficiency programs.


Duerst Insulation Technicians helps homeowners understand available rebate opportunities before work begins. Our team can help identify eligible improvements and apply qualifying rebates directly to your project cost whenever possible.


In the past 5 years, we have helped customers receive over $1,000,000 in rebates.

Rebate Support Without the Guesswork

You should not have to sort through complicated rebate paperwork alone. We help explain your options, identify qualifying improvements, and guide you through the process so you can make a smarter investment in your home.

Home Insulation, Air Sealing & Concrete Lifting Services

Duerst Insulation Technicians provides complete insulation and home performance services for homeowners in Madison, Dane County, and surrounding Wisconsin communities.

Wall Insulation

Enhance Comfort and Efficiency with Expert Wall Insulation


Your home's walls are essential to maintaining a consistent indoor temperature and reducing energy costs. If you're looking to improve insulation, we offer effective solutions—without the disruption.


In most cases, we can insulate existing walls without removing drywall, saving you both time and money while boosting your home’s comfort and efficiency.

Blown Attic Insulation

Boost Efficiency with Blown Attic Insulation


A properly insulated attic is one of the most cost-effective ways to improve your home's energy performance. Our blown-in attic insulation provides comprehensive coverage, sealing gaps and preventing heat loss where it matters most.


This efficient installation method allows us to upgrade your attic insulation quickly and with minimal disruption, delivering immediate improvements in comfort and long-term savings on your energy bills.

Attic space with spray foam insulation on the angled ceiling, a small skylight, and a concrete floor.

Air Sealing

Seal in Comfort. Lock Out Energy Loss.


Effective air sealing is critical to getting the full value from your insulation. By closing gaps, cracks, and leaks in your home’s structure, we help you eliminate drafts, reduce energy waste, and cut down on utility costs.

In short, the warm air you’ve paid for stays where it belongs—inside your home.


Our experienced team is committed to making your home more energy-efficient, comfortable, and cost-effective for years to come.

Sound Proofing

Quiet Comfort with Expert Soundproofing Solutions


Whether you're looking to reduce outside noise, create a peaceful home office, or add privacy between rooms, our soundproofing services deliver the quiet you need.


Using proven materials and techniques, we tailor each solution to your space—minimizing noise transfer and enhancing comfort without compromising design or function. Contact us today to explore how soundproofing can improve your home environment.

Insulation Removal

Safe, Clean, and Efficient Insulation Removal


Old, damaged, or contaminated insulation can compromise your home’s comfort and efficiency. Our professional insulation removal services ensure your property is thoroughly cleared and ready for a clean, effective new installation.


With minimal disruption to your daily routine, our experienced team handles the process with care, precision, and safety. Schedule a consultation today and take the first step toward a healthier, more energy-efficient home.

Concrete Leveling/Lifting

Restore Safety and Stability with Concrete Leveling


Uneven or sunken concrete can create tripping hazards and diminish your property’s curb appeal. Our concrete leveling and lifting services provide a fast, effective solution—raising and stabilizing sidewalks, driveways, patios, and more without the need for full replacement.


Using advanced techniques and durable materials, we restore your surfaces to a safe, even condition with minimal disruption. Reach out today to schedule an assessment and protect your investment.

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Why Choose Duerst Insulation Technicians?

We think our customer's say it best.....