Attic Air Sealing in Phoenix

Even the best insulation can’t perform properly if your attic leaks air. Thermo Shield provides professional attic air sealing in Phoenix and throughout the Valley, helping homeowners stop energy loss and improve comfort year-round.

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Seal the Gaps. Save on Energy. Feel the Difference..

Why Attic Air Sealing Matters:

Poorly sealed ducts let conditioned air escape into the attic or crawl space—areas that don’t need it. At the same time, dust, allergens, and insulation particles from those same areas are being pulled into your living space. Our certified team uses advanced diagnostic tools to locate hidden leaks, sealing them for lasting energy efficiency and lower utility bills

Common Attic Leak Points We Seal

Your attic can hide dozens of small openings that let conditioned air escape and outdoor air leak in. During our inspection, we carefully locate and seal every source of air loss, including:

  • Recessed lighting and electrical fixtures that create heat-loss pathways through your ceiling.
  • Plumbing and wiring penetrations running between your attic and living spaces.
  • Attic hatches and pull-down stairs that often lack proper weather-stripping.
  • Vents, chimneys, and exhaust openings where gaps commonly form around framing.
  • Top plates and framing joints along the attic perimeter that allow air to flow freely between rooms and the roof cavity.

By targeting these leak points, our team ensures your attic is sealed tight — improving comfort, reducing energy waste, and protecting your insulation investment.

Why Choose Thermo Shield?

SRP preferred Contractor
Energy Star Century Club Award
Before/After House Pressure Testing
BPI Certified
Lifetime Warranty

Benefits of Attic Air Sealing

  • Lower Energy Bills: Keep your conditioned air where it belongs — inside your home.

  • Enhanced Comfort: Eliminate drafts and temperature swings between floors.

  • Better Air Quality: Reduce dust, pollen, and outdoor pollutants entering through attic gaps.

  • Moisture Control: Prevent warm, humid air from condensing in your attic insulation.

  • Improved HVAC Efficiency: A sealed attic reduces system strain and extends equipment life.

Our Attic Air Sealing Process

Thermo Shield uses industry-leading techniques and insulation-safe materials to create a complete air barrier across your attic.

Attic Inspection & Testing

We identify air leaks using blower door testing and thermal imaging.

Preparation

We safely clear areas around fixtures, vents, and seams to ensure proper access.

Sealing

We apply professional-grade sealants, caulk, and foam to close all gaps and penetrations.

Verification

Our technicians retest the attic to confirm an airtight seal and improved performance.

Boost R-value to R38-R49

We install cellulose, fiberglass, or spray foam insulation to elevate your attic’s thermal performance and bring it up to the recommended R38–R49 rating for Phoenix homes.

Attic Inspection & Testing

We identify air leaks using blower door testing and thermal imaging.

Preparation

We safely clear areas around fixtures, vents, and seams to ensure proper access.

Sealing

We apply professional-grade sealants, caulk, and foam to close all gaps and penetrations.

Verification

Our technicians retest the attic to confirm an airtight seal and improved performance.

Boost R-value to R38-R49

We install cellulose, fiberglass, or spray foam insulation to elevate your attic’s thermal performance and bring it up to the recommended R38–R49 rating for Phoenix homes.

Seal Your Attic and Start Saving Today

Don’t let hidden air leaks drive up your energy costs. Our experts make attic air sealing simple, effective, and affordable for Phoenix homeowners.

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