EXPERT LEAK INVESTIGATION SERVICES FOR BUILDINGS

We provide detailed on-site investigation services that deliver thorough, accurate, and defensible conclusions regarding a building envelope’s performance. Our investigative reports combine rigorous analysis with clear, actionable insights, ensuring that findings are both technically sound and accessible.

an exterior wall assembly leak has deteriorated the wall sheathing and encouraged organic growth (mold) in the wall

Commercial Leak Investigation & Water Intrusion Testing Services

Water Leaks Are One of the Biggest Risks to Your Building.

Many leak problems are misdiagnosed, leading to repeated repair attempts that fail to resolve the actual issue. That’s where Hightower Labs comes in.


A significant leak into the dropped ceiling of an office building

How We Accurately Diagnose Water Leaks in Buildings

Hightower Labs specializes in accurate, data-driven leak investigations that pinpoint the true source of leaks, allowing building owners and managers to take targeted, cost-effective action.


Why Choose Hightower Labs for Leak Investigations and Forensic Inspection?


Our Proven Leak Investigation Process

  1. Initial Consultation – We discuss your leak concerns, review any past repairs, and gather building history.
  2. On-Site Testing & Inspection – Using controlled testing and forensic analysis to identify vulnerabilities.
  3. Findings & Recommendations – A clear, professional report outlining leak sources and best next steps.


Who We Work With


Get Ahead of Your Leak Problems Before They Get Worse

If you’re dealing with a persistent leak issue—or want to proactively assess your building’s envelope before damage occurs—Hightower Labs is here to help.

Contact Us Today

E-mail: service@hightower-labs.com

Phone: 312.897.3742

water testing to investigate a reported leak and narrow the path down to a definitive root cause

OTHER BUILDING ENVELOPE INVESTIGATION SERVICES

We provide detailed on-site investigation services that deliver thorough, accurate, and defensible conclusions regarding a building envelope’s performance. Our investigative reports combine rigorous analysis with clear, actionable insights, ensuring that findings are both technically sound and accessible.

Our reports have been described as "extremely thorough," and we take pride in that. Occasionally, they even include hand-drawn sketches, a nod to the art of field documentation. Every leak issue is different, and every investigation is and tailored to the unique conditions of each project.

CONCLUSIVE DELIVERABLES

Balancing efficiency and thoroughness, all reports feature:
- Executive Summaries for quick reference.
High-resolution photos and illustrations to support findings and accommodate various levels of reading enthusiasm.

Our reports have been described as "extremely thorough," and we take pride in that. Occasionally, they even include hand-drawn sketches, a nod to the art of field documentation. Every leak issue is different, and every investigation is and tailored to the unique conditions of each project.



Whether you need an independent performance verification, forensic investigation, or expert documentation of building envelope conditions, Hightower Labs delivers clarity where it matters most.
Click the icons below to learn more:

Resolving the Classic Leak

100% Success Rate

Our investigation identifies causes, phenomena, and points of origin contributing to the leak so that definitive and lasting resolution can be achieved, rather than indiscriminate and wasteful caulk-spraying by the contractor likely responsible for the issue in the first place.

40% of HTL leak investigations in 2021 and 2022 involved new buildings occupied for less than five years.

Building Air Tightness Evaluation
New Code Adoption & Enforcement

In many cases, air flow management is the most cost-efficient control of energy exhausted to condition interior environments.

The vast majority of multistory projects constructed in the U.S. over the last two decades have received no in situ air tightness evaluations and are completely blind to its effects on energy waste, IAQ, and occupant comfort.

Helping building stakeholders manage energy costs, environmental impacts, and occupant comfort.

HTL can assist with identifying thermal bridging and other areas of concern leading to fenestration and exterior wall assemblies under-performing in the increasingly critical thermal capacity.

Our investigation and evaluation processes can provide substantive, accurate measurements of envelope thermal transmittance by measuring the enclosure's most pertinent properties (R-value and air infiltration). If the items of concern are a product of mechanical systems or use of space, then we can assist with identifying these causes as well.

Everything else closing out the envelope commissioning and turnover process.

Assistance with operable vent and doorway operation and hardware.

Review of mechanical systems for design cohesion with envelope performance.

RECENT INVESTIGATION HIGHLIGHTS

A collage of recent investigation report selections. The illustrations and photos, anyway. Copy has been obscured to protect the anonymity of the highlighted projects. Refer to HTL case studies for more in-depth analysis, or request a copy of a full sample report here

NOTEWORTHY FROM HTL

Independent studies, industry papers, slideshows, video presentations, and other content benefiting those in the industry with the patience to read five pages, and diagrams for the developers.

  • Meet the New UI Design
    ASTM E783 AND ALL-GLASS FACADES

    Industry-wide, invalid and improperly executed ASTM E783 test data are not providing a reliably accurate accounting of the building's air-tightness on window wall and curtain wall systems comprising the majority of envelopes built this century and, consequently, building stakeholders are blind to their property's performance.

  • ssg system scale
    SSG ITEMS OF CONCERN

    In this Notes From The Field article, HTL checks in on the U.S. construction industry's widespread use and mis-use of structural glazing systems.

  • Lean
    BEAM03 PROCEDURE INTRODUCTION

    The BEAM03 procedure introduces a novel approach to evaluating building envelope water resistivity, addressing critical gaps in traditional QAQC practices. BEAM03 delivers reliable, repeatable data for assessing large-scale envelope performance, including complex geometries and system transitions.