
Existing Building Commissioning
(EBCx)
Strengthen Existing Building Performance Through EBCx
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B2Q’s Existing Building Commissioning helps owners and facility teams improve how building systems operate day to day. Through field investigation and Building Automation System data review, B2Q identifies performance gaps and recommends practical improvements that support efficiency, reliability, comfort, and long-term building performance.
EBCx Services at a Glance
EBCx Services at a Glance
Review system operation through field investigation, BAS trend data, and functional testing.
Identify control issues, operating anomalies, and optimization opportunities.
Prioritize low-cost operational improvements and targeted repairs with measurable impact.
Align recommendations with available utility incentives and funding strategies.

Common Issues EBCx Helps Address​
Frequent occupant comfort complaints and persistent hot/cold spaces
High energy use with no clear root cause
Equipment short cycling or simultaneous heating and cooling
Inconsistent scheduling, setbacks, or ventilation control
Overrides, alarms, and unstable control sequences
How B2Q Delivers EBCx
Listen first
B2Q starts by learning how your building operates today, what your team is seeing in the field, and which outcomes matter most.
Engineer practical solutions
Recommendations focus on implementable operational adjustments, targeted repairs, and strategic upgrades that align with owner priorities.
Support lasting performance
B2Q works alongside operations staff, providing training, updated documentation, and clear as-built information to support long-term results.
Investigate with data and field insight
The team performs detailed on-site evaluations and uses BAS data, trend logs, and functional testing to understand system performance and pinpoint issues.
Deliver from study to implementation
When helpful for the project, our engineers can support the project from findings through design, construction, commissioning, and measurement and verification for continuity.
Practical Results​
Operational efficiency
Typical EBCx efforts target meaningful reductions in annual energy costs, often in the 10 to 20 percent range.
Reliable building systems
Improved control sequences and corrected deficiencies that support comfort and reliability.
Clear data for decision-making
Actionable findings that help prioritize repairs, upgrades, and capital planning.
Progress toward sustainability
Practical pathways to reduce energy use and emissions in existing facilities.
Measurable Impact
B2Q’s EBCx work across more than 100 facilities in the Northeast has supported over $10 million in implemented projects and delivered.
The Long-Term Impact of Existing Building Commissioning
Existing Building Commissioning (EBCx) does more than reduce immediate energy use. A strategic EBCx process can improve operational efficiency, reduce future electrification costs, strengthen occupant comfort and safety, and extend equipment life.
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