Targeting the Hidden Leaks That Cost You Money
At Duerst Insulation, we know that a properly insulated home is essential for year-round comfort, energy efficiency, and long-term savings. As a family-owned business, we’re committed to delivering high-quality products and expert service our customers can depend on.
Professional Air Sealing Services in
Madison, Verona, Cross Plains & Dane, WI
Air Sealing vs. Insulation: Why Both Matter
While insulation is designed to slow the transfer of heat, it does little to stop the actual movement of air through your home. That’s where air sealing comes in. Air sealing focuses on closing gaps, cracks, and penetrations in the building envelope—areas where conditioned air escapes and outside air infiltrates.
Without proper air sealing, insulation alone cannot perform to its full potential. Warm or cool air will continue to leak in and out of your home, creating drafts, uneven temperatures, and higher energy bills, regardless of how much insulation is in place.
When used together, insulation and air sealing create a complete thermal and pressure barrier. This combination:
- Prevents energy loss
- Eliminates drafts and hot/cold spots
- Reduces strain on heating and cooling systems
- Improves indoor air quality by minimizing outside air infiltration
- Enhances overall home comfort and energy efficiency year-round
In short, air sealing is the foundation that allows your insulation to work effectively. Ignoring it is like trying to insulate a house with the windows open. For lasting results and true energy performance, both are essential.
Targeted Areas for Sealing
| Area | Common Air leak Sources |
|---|---|
| Attic | Gaps around light fixtures, vent stacks, duct chases, and attic hatches |
| Basement & Crawl Spaces | Box sills ) rim joists), utility penetrations, foundation cracks |
| Exterior Walls | Electrical outlets, window and door frames, wall penetrations (cables, pipes) |
| Doors & Windows | Weather stripping, caulking, poorly fitted frames |
| Plumbing & Electrical Penetrations | Openings around pipes, wires and HVAC lines |
Benefits of Air Sealing
Lower Energy Bills: Reduces heating and cooling losses, easing the load on HVAC systems.
Improved Comfort: Eliminates drafts and cold/hot spots in the home.
Enhanced Indoor Air Quality: Reduces dust, pollen, humidity, and pollutants entering from outside or crawl spaces.
Moisture Control: Helps prevent condensation and mold growth in vulnerable areas.
Better Soundproofing: Seals also help block external noise transmission.
Sealing Methods & Materials
Caulk: Ideal for sealing stationary cracks and small gaps (typically < ¼ inch).
Spray Foam (expanding): Used for larger gaps and around irregular openings.
Weatherstripping: Applied to movable components like doors and windows.
Foam Gaskets: Installed behind outlet and switch plates on exterior walls.
Rigid or Spray Foam Board: Used in box sills or crawl spaces, sealed with tape or spray foam.
Stop Air Leaks from Draining Your Comfort and Efficiency
Air leakage can quietly undermine your home's comfort, energy efficiency, and indoor air quality. At Duerst Insulation, we specialize in identifying and sealing these problem areas to create a healthier, more efficient living environment.
Take the first step toward a properly sealed and insulated home—schedule your appointment today. Let our experience and attention to detail deliver the lasting results your home deserves.
