Third-Party Observations: Elevating Construction Quality and Owner Confidence

SME® | Published on December 15, 2025

 

SME Field Technician acting as a Third-Party Observation on a project site

In today’s fast-paced construction environment, balancing quality, budget, and schedule is a constant challenge. Yet, one initiative stands out for its ability to safeguard owner expectations and project outcomes: Third-Party Observation.

 

What is Third-Party Observation? 

Third-Party Observation is a multi-faceted review of specific construction materials, systems, or installation processes for a given project. While not a new concept, its application has evolved to address both regulatory and discretionary needs. Regulatory Third-Party Observations are mandated for special inspections, think concrete, steel, or firestopping, while discretionary Third-Party Observations are engaged at the preference of the client, architect, or contractor, focusing on quality assurance beyond code requirements.

 

Why Bother With Third-Party Observations? 

The age-old question in construction is which matters most: quality, budget, or schedule? While budget and schedule often dominate, Third-Party Observation is a quality-focused activity that helps maintain balance among these competing forces. It ensures that owner expectations—expressed or implied in construction documents—are met, and it can prevent costly mistakes and rework.

A compelling parallel is the Hawthorne Effect: people often improve performance simply because they know they’re being observed. On construction sites, the presence of a third-party observer can motivate teams to adhere more closely to best practices, driving up productivity and quality.

 

The Nuts and Bolts: How Third-Party Observation Works 

Third-Party Observations may be hired by the client, construction manager, or general contractor, depending on project requirements. Their scope typically includes:

  • Document review (drawings, specs, product literature)
  • Site observations (pre-installation meetings, installation, and follow-ups)
  • Testing (as specified or recommended)
  • Reporting (real-time feedback and formal reports with photos)

Materials and systems that benefit most from Third-Party Observation are those which will be covered by future work and often including below-grade waterproofing, air barriers, flashings, material transitions, windows, sealants, and roofing.

 

Best Practices For Working With Third Party Observers 

Working with Third-Party Observers can be simple and seamless, integrating them onto the project team, rather than seeing them as a “third-party”. Below are some simple steps for working together, and maximizing the value of a Third-Party Observer:

  1. Schedule Early: Integrate their activities into the construction schedule from the outset.
  2. Clarify Roles: Ensure everyone understands that they support the project team but do not direct the work.
  3. Engage Proactively: Treat discretionary Third-Party Observers as valuable partners, not unnecessary costs.

 

Case Study: Weather-Resistive Barrier (WRB)

A recent project illustrated the value of early Third-Party Observer involvement. SME was called in late to observe and test a water resistive barrier installation. Issues included incompatible materials, inadequate details, and failed thickness tests. Early Third-Party Observer engagement could have mitigated costly rework and delays, highlighting the importance of proactive quality assurance.

Self-adhered Membrane incorrectly installed, caught by Third-Party Observation

Self-adhered Membrane incorrectly installed, caught by Third-Party Observation.

What’s New?

 Regulatory changes.

The 2021 Michigan Commercial Energy Code now includes regulatory third-party observation and independent design review for building air barrier systems, when whole-building air leakage testing is not performed. While regulatory third-party observation is part of the alternative compliance path, it underscores the broader value of involving third-party observers early to reduce risk and improve installation quality.

 

Six Takeaways For Project Success

  1. Third-Party Observation is a quality-focused initiative.
  2. Its goal is to help the team meet owner expectations.
  3. Get Third-Party Observers involved early.
  4. Include Third-Party Observations on the construction schedule.
  5. Invite Third-Party Observers to pre-installation meetings.
  6. Engage with Third-Party Observers, don’t avoid them.

 

Visit our Building Materials page to learn more about how SME can help your project succeed.