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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Window & Glazing Testing & Diagnostics

Our independent experts use the latest technology to provide accurate assessments and recommend effective solutions to improve the performance of windows and glazing systems, whether you need a routine inspection, repair work, or a full diagnostic evaluation.

Window System Specification

Window ASTM Compliance

Diagnostic & Final Inspections

Root Cause Leak Detection

Window & Glazing Inspections To Keep the Elements Out

building envelope allies inspector conducting water penetration test


We conduct thorough testing for new construction windows and glazing to ensure the installed systems meet applicable ASTM standards.

view of inspector conducting water intrusion test from inside building


Routine window and glazing inspections identify leaks and failing components, before moisture causes comfort or health issues for building occupants.

inspector conducting building envelope testing in a lift

Emergency Inspections

A full diagnostic evaluation includes window and/or glazing testing to identify any leaks and failures contributing to building maintenance costs.

Expert Testing to Professional Standards

Our window & glazing inspection services cover the following ASTM standards:


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

Building Envelope Solutions Made Simple

Complete Inspection & Testing Packages for Better Performance

Ensure quality and efficiency with our bundled service packages.

Advanced Leak 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


Quality Assurance Package

Air and water leakage testing on the roof, walls, and windows to ensure the installation meets design criteria and applicable building standards.

  • Whole-building testing to verify all components meet design criteria (including air barriers, curtain walls, façades, roofs, walls, and windows)
  • Early and constant testing throughout construction
  • Verify installed components meet air, water, and other relevant building standards
  • Verify finished product will meet owner/contractor expectations

AAMA 501.2, ASTM C1060, ASTM C1153, ASTM C1715, ASTM E330, ASTM E331, ASTM E779, ASTM E783, ASTM E1105, ASTM E1186, ASTM E2128, ASTM D7877

Window & Glazing Testing & Diagnostics FAQs

What is a water infiltration test, and why is it important for window systems?

A water infiltration test is a type of inspection that evaluates a window system’s ability to resist water intrusion under controlled conditions. During the test, we spray water at the window system from various angles and pressures to simulate driving rain.

The test helps identify potential areas of weakness in the window system, like gaps, cracks, or other defects that could allow water to penetrate the building envelope. It is important for window systems because water intrusion can cause significant damage to building materials and can lead to the growth of mold and other health hazards.

What is glazing testing and why is it necessary?

Glazing testing is the process of evaluating the strength, durability, and thermal performance of the glass used in windows and other building elements. It’s necessary because the glazing system is a critical component of the building envelope, and it plays a vital role in controlling energy transfer and maintaining occupant comfort.

A thorough glazing test after construction can identify potential weaknesses or defects in the glazing system, allowing for timely repairs or replacement before serious issues arise.

What is the difference between AAMA 501.2 and ASTM E1105?

AAMA 501.2 is commonly referred to as “Nozzle Testing”. A calibrated nozzle is used to spray water between 30-35 psi for one minute per foot of the system without an interior chamber. ASTM E1105 utilizes a calibrated spray rack on the exterior with a chamber on the interior of the
system. The chamber is depressurized and the spray rack is adjusted to a calibrated water pressure to meet the ASTM flow rate.

building envelope allies inspector examining the seal on a window

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