Our Services
Comprehensive residential weatherization — assessed and tailored to your home's specific needs.
Energy Audits & Building Diagnostics
Data-Driven Home Energy Audits
A home is not just four walls and a roof — it is an interconnected system where airflow, insulation, moisture, and mechanical equipment constantly interact. At AIR, LLC, our assessments treat your home as a whole system to find the root causes of drafts, uneven room temperatures, and indoor air issues.
Blower Door Depressurization Testing
We measure total air infiltration rates by depressurizing the home with calibrated fan systems to map out hidden leakage pathways.
Zonal Pressure Diagnostics
We evaluate pressure differentials across attics, attached garages, crawlspaces, and interior partitions to identify thermal and pressure boundary issues.
Combustion Safety & CAZ Testing
We test furnaces, boilers, and water heaters under depressurization scenarios, checking flue draft and carbon monoxide levels to ensure indoor air remains safe.
Thermal Boundary Evaluation
We inspect wall cavities, knee-walls, cantilevers, and ceiling planes to find gaps, missing insulation, and thermal bypasses.
Insulation Improvements
Attic, Wall & Crawlspace Insulation Retrofits
Adding insulation without a diagnostic plan can trap moisture or leave major drafts untreated. AIR, LLC combines air sealing with high-performance insulation to create a continuous thermal blanket around your living space — based on what your specific home needs.
Attic Insulation & R-Value Upgrades
We assess your attic and recommend the appropriate insulation depth and type, including dense-pack cellulose and loose-fill fiberglass with properly air-sealed soffit baffles and insulated access hatches.
Dense-Pack Exterior Wall Insulation
For older homes with empty or settled wall cavities, we use non-invasive dense-packing techniques to stop air convection and significantly increase R-value.
Rim Joist & Foundation Insulation
We insulate and air-seal basement rim joists and band boards — one of the largest sources of cold basement drafts and heat loss in Midwest homes.
Crawlspace Encapsulation & Thermal Barriers
We install heavy-duty vapor barriers and crawlspace wall insulation to prevent cold floors, moisture intrusion, and ground dampness.
Whole-Home Air Sealing
Eliminate Drafts & Air Leaks for Good
In typical homes, the combined effect of small cracks, plumbing chases, and chimney penetrations can be the equivalent of leaving a window open all year. AIR, LLC locates and permanently seals these hidden air leaks using high-grade foams, fire-rated barriers, and specialty sealants.
Attic Bypasses & Chases
Sealing top plates, electrical wire drops, open plumbing stacks, bathroom exhaust fan housings, and recessed lighting fixtures.
Chimney & Flue Chases
Installing fire-rated sheet metal and high-temperature silicone barriers around masonry and metal chimney flues.
Knee-Walls & Architectural Transitions
Blocking and sealing open floor joists beneath attic knee-walls and cathedral ceiling intersections.
Duct Sealing & Mechanical Transitions
Sealing supply and return plenum transitions to prevent conditioned air from being lost in unconditioned attics or crawlspaces.
Radon Mitigation & Indoor Air Quality
Radon Mitigation & Healthier Indoor Air
Iowa and Nebraska feature some of the highest average indoor radon concentrations in the United States. Radon is an invisible, odorless, naturally occurring radioactive soil gas and is the leading cause of lung cancer among non-smokers. AIR, LLC integrates environmental mitigation with building performance — ensuring that making your home airtight never traps indoor contaminants.
Active Soil Depressurization (ASD) Systems
Custom-designed radon mitigation systems that pull soil gases from beneath your slab or foundation and vent them safely above the roofline.
Crawlspace Membrane & Depressurization
Sealing exposed earth floors with gas-tight, cross-laminated poly membranes tied directly into active sub-membrane exhaust systems.
Mechanical Fresh Air Ventilation
Installing balanced Energy Recovery Ventilators (ERVs) and Heat Recovery Ventilators (HRVs) to ensure clean, filtered outdoor air exchange.
Moisture & Soil Gas Barrier Sealing
Caulking and sealing foundation perimeter cracks, sump basins, and expansion joints to reduce ground moisture and soil gas infiltration.
Agency & Non-Profit Partnerships
AIR, LLC works alongside community action agencies, municipal housing authorities, and regional non-profits on weatherization assistance projects. We understand the administrative, diagnostic, and reporting requirements these projects involve.
If your organization is seeking a qualified weatherization contractor for program delivery, we welcome the conversation.
Ready to partner?
Reach out to discuss how AIR, LLC can support your weatherization assistance program or community energy project.
Contact About Partnerships