Roof Inspections & Testing

Comprehensive diagnostic services for complete roofing systems.

Facade Inspections & Testing

Full-service facade testing for commercial building envelopes.

Window / Glazing Testing & Diagnostics

Complete professional inspections for windows and glazing systems.

Air & Water Leak Diagnostics

Advanced air and water leak analysis for informed decision making.

Whole Building Air Leakage Testing

Thorough air barrier testing for new construction and existing buildings.

Electrical Testing

Non-destructive electrical testing for safety and insurance requirements.


New Construction Solutions

Maximize your building envelope performance at every stage of construction, from spec to completion.
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Existing Construction Solutions

Optimize the lifespan of your existing building envelope with routine maintenance solutions.
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Specialty Solutions

Choose from a range of specialty solutions, customized for your unique building envelope needs.
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Air & Water Leak Diagnostics

Our independent building enclosure professionals specialize in advanced air and water leak diagnostics and testing to reduce costly repairs, optimize indoor air quality, and maximize building lifespan.

Identify Air & Water Leaks

Meet Professional Building Standards

Optimize Indoor Air Quality

Advanced Air & Water Leak Diagnostics For Better Building Management

building envelope allies inspector conducting air barrier testing


We perform comprehensive air and water leak testing at the end of construction to identify any leaks that your contractors may have missed.

building envelope allies conducting water intrusion test outside building


After construction, air and water leak testing is an effective way to diagnose common maintenance issues and keep your building operating safely and efficiently.

building envelope allies conducting emergency water leak testing

Emergency Inspections

Our specialists can pinpoint and diagnose complex air and water leaks that could compromise the safety or structural integrity of your building.

Expert Testing to Professional Standards

Our air and water leak diagnostics service covers the following ASTM standard(s):


ASTM E1105

Standard test method for field determination of water penetration of installed exterior windows, skylights, doors and curtain walls by uniform or cyclic static air pressure difference



Standard test method for field measurement of air leakage through installed exterior windows and doors


AAMA 501.2

Quality assurance and diagnostic water leakage field check of installed storefronts, curtain walls and sloped glazing systems


ASTM E1186

Standard practices for air leakage site detection in building envelopes and air barrier systems


ASTM E1060

Standard practice for thermographic inspection of insulation installations in envelope cavities of frame buildings

Building Envelope Solutions Made Simple

Complete Inspection & Testing Packages for Better Performance

Ensure quality and efficiency with our bundled service packages.

Advanced Diagnostics Package

A comprehensive independent inspection to detect troublesome water and air leaks that contractors haven’t identified or fixed.

  • Water leakage testing on windows, walls, and roofs
  • Air leakage testing on windows, walls, and whole buildings
  • Detect building envelope deficiencies early
  • Identify any active leak entry points, so they can be fixed
  • Hold relevant contractors accountable


Air & Water Leak Diagnostics FAQs

What is the difference between ASTM E1105 and AAMA 501.2?

ASTM E1105 consists of building a chamber on the test area to allow the system to be depressurized. Water is sprayed on the exterior from a calibrated spray rack for a defined period of time to test for water leakage. AAMA 501.2 is performed with a calibrated spray nozzle at a measured pressure for 1 minute per linear foot. No interior chamber is required.

What is the difference between a Curtain Wall and a Storefront?

The key difference between storefronts and curtain walls is the way water is managed in the system. In curtain walls, each lite of glass is weeped separately. In a storefront system, the entire elevation is weeped at the sill.

What is the most common air leakage locations in buildings?

The roof/wall connection is the most commonly found source of air leakage in commercial buildings.

building envelope allies inspector conducting building envelope inspection on lift

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