Commissioning Closeout

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name: commissioning-closeout description: Guides construction PMs through building commissioning, TAB, punch lists, O&M documentation, warranties, and project closeout.

Commissioning & Closeout Skill

This skill serves as the capstone for construction project management, integrating all trades and coordination skills to deliver a fully commissioned, documented, and turned-over project. Use this skill to navigate the systematic process of verifying building systems, completing punch lists, compiling closeout documentation, and transitioning the project to the owner.

Quick Reference Tables

Commissioning Phases

Phase	Key Activities	PM Responsibilities
Pre-Design	OPR development, CxA selection	Support owner, review scope
Design	BOD review, Cx specs	Review specifications
Construction	Pre-functional, FPT, issues	Coordinate, schedule, track
Acceptance	Seasonal testing, final report	Verify completion, acceptance
Post-Occupancy	Warranty support, 11-month walk	Callback coordination

Systems to Commission

System Category	Key Systems	Reference Skill
HVAC	Heating, cooling, ventilation, exhaust	[mechanical-plumbing-systems]
Electrical	Power distribution, emergency, lighting	[electrical-systems]
Plumbing	Domestic water, sanitary, specialty	[mechanical-plumbing-systems]
Fire Protection	Sprinkler, fire alarm, smoke control	[fire-protection-systems]
Building Envelope	Air barrier, waterproofing, thermal	[building-envelope-exterior]
Low-Voltage	BAS, security, AV, nurse call	[low-voltage-technology]
Vertical Transport	Elevators, escalators	[elevators-vertical-transportation]
Specialty	Kitchen, lab, medical equipment	[equipment-division-11]
Sustainable	Solar PV, EV, BESS, geothermal	[sustainable-systems]

Closeout Milestones

Milestone	Criteria	Key Deliverables
Pre-Substantial	Systems operational, Cx near complete	Pre-punch complete
Substantial Completion	Occupiable, life safety complete	Certificate of SC, TCO/CO
Punch List Complete	All items resolved	Sign-off documentation
Final Completion	All work/docs complete	Final CO, final payment
Warranty End	11-month walk complete	Warranty closeout

TAB Tolerances

Measurement	Tolerance	Notes
Supply/Return Air	±10% of design	Per terminal/zone
Outside Air	0 to +10% of design	Never less than design
Exhaust Air	0 to +10% of design	Never less than design
Hydronic Flow	±10% of design	Per terminal
System Total	±5% of design	Overall system

Closeout Documentation Checklist

Document	Responsibility	Timing
O&M Manuals	Contractor/Subs	Before SC
As-Built Drawings	Contractor/Subs	Before FC
Warranties	Contractor/Subs	At SC
Training Records	Contractor	Before occupancy
Commissioning Report	CxA	Before FC
TAB Report	TAB Contractor	Before Cx FPT
Final Lien Waivers	All parties	At final payment

Reference Files

Commissioning Fundamentals

• Commissioning Overview - Definition, benefits, phases, team roles, types
• Commissioning Planning - OPR, BOD, Cx plan, specifications, schedule
• Pre-Functional Checklists - Purpose, content, process, by system
• Functional Performance Testing - Process, types, conditions, issues log

System Commissioning

• HVAC Commissioning - Heating, cooling, air handling, exhaust, smoke control
• Electrical Commissioning - Power distribution, emergency power, lighting
• Plumbing & Fire Protection - Domestic water, sprinkler, fire alarm
• Envelope Commissioning - Air barrier, water resistance, thermal
• Low-Voltage Commissioning - BAS, security, AV, nurse call, DAS
• Specialty Systems - Elevator, kitchen, lab, medical, sustainable

Testing, Adjusting, Balancing (TAB)

• TAB Overview - Definition, contractors, certification, specifications
• Air Balancing - Supply, return, exhaust, outside air, tolerances
• Hydronic Balancing - Chilled/hot water, pumps, tolerances

Controls & Integration

• BAS/Controls - Points verification, sequences, graphics, integration
• Integrated Systems Testing - Fire/life safety, smoke control, security
• Emergency Power Testing - Generator, ATS, load verification

Completion & Turnover

• Substantial Completion - Definition, criteria, TCO, warranty start
• Punch List Management - Development, tracking, execution, completion
• Final Completion - Criteria, CO, final payment, lien waivers
• O&M Manuals - Content, format, collection, review
• As-Built Documentation - Red-lines, CAD, BIM, deliverables
• Warranties - Types, documentation, start dates
• Training & Turnover - Requirements, scheduling, attic stock, keys
• Warranty Administration - Period management, 11-month walk, claims

Inspections & Coordination

• Code Inspections & CO - Final inspections, fire marshal, permit closeout
• Coordination & Sequencing - Cx coordination, TAB, closeout schedule
• Specifications & CSI - Division 01 sections, related specs

Integration with Other Skills

Project Management Skills

Skill	Integration Points
[procore-project-management]	Punch lists, documentation, submittals, issue tracking
[quality-control-closeout]	QC framework, completion procedures
[vdc-bim-coordination]	As-built models, COBie, BIM integration
[schedule-management-cpm]	Closeout schedule, milestones, critical path
[contract-administration]	Substantial/final completion, retainage, payments
[subcontractor-management]	Sub closeout, lien waivers, warranty coordination
[owner-stakeholder-communication]	Turnover, training coordination, owner relations
[claims-delay-documentation]	Closeout claims, delay documentation

Trade Skills

Skill	Integration Points
[mechanical-plumbing-systems]	HVAC commissioning, TAB, plumbing systems
[electrical-systems]	Electrical commissioning, emergency power, lighting
[fire-protection-systems]	Fire alarm, sprinkler, smoke control, integration
[low-voltage-technology]	BAS, security, AV, nurse call commissioning
[elevators-vertical-transportation]	Elevator testing, inspection, certification
[equipment-division-11]	Kitchen, lab, medical equipment commissioning
[sustainable-systems]	Solar, EV, BESS, geothermal commissioning
[structural-trades]	Special inspections closeout
[building-envelope-exterior]	Envelope commissioning, air/water testing
[interior-finishes-trades]	Finishes punch, protection
[doors-frames-hardware]	Hardware adjustment, keying schedules
[specialties-division-10]	Specialties verification
[furnishings-division-12]	Furniture installation, FF&E punch
[site-improvements-division-32]	Site punch, landscaping warranty
[early-phase-enabling-trades]	Utility closeout, site stabilization
[construction-safety-management]	Safety during commissioning activities

Key PM Actions by Phase

Pre-Substantial Completion (4-8 weeks before SC)

1. Verify commissioning pre-functional checklists complete
2. Coordinate functional performance testing schedule
3. Track commissioning issues log resolution
4. Begin self-performed punch walks
5. Collect O&M manual submittals
6. Schedule owner training sessions
7. Verify TAB report completion
8. Coordinate final inspections scheduling

Substantial Completion Week

1. Complete pre-SC walkthrough with owner/architect
2. Document punch list with photos and locations
3. Verify life safety systems operational
4. Confirm TCO/CO requirements met
5. Execute Certificate of Substantial Completion
6. Establish warranty start dates
7. Distribute punch list to responsible parties

Post-Substantial Completion

1. Track punch list completion daily
2. Execute owner training per schedule
3. Deliver O&M manuals and as-builts
4. Coordinate seasonal commissioning testing
5. Complete attic stock delivery and inventory
6. Execute key turnover and final cleaning
7. Collect final lien waivers

Final Completion

1. Verify all punch items complete and accepted
2. Confirm all documentation delivered
3. Obtain permanent Certificate of Occupancy
4. Process final payment application
5. Release retainage per contract terms
6. Close out permits and contracts

Warranty Period

1. Respond to warranty callbacks promptly
2. Track warranty expiration dates
3. Schedule 11-month warranty walk
4. Document and resolve 11-month items
5. Close out warranties at expiration