Closeout Desk
Free Warranty Transmittal Log Template for Commercial Construction
Mark Sullivan
Principal Operations Lead, Closeout Desk
Most closeout packages include warranties as a loose collection of PDFs in a folder labeled "Warranties." That is not enough. A proper closeout package includes a warranty transmittal log, a structured register that documents every warranty collected, what it covers, who to call for a claim, and how long it lasts. Without it, the owner's FM team has no reliable way to know what warranty coverage they have, when it expires, or who to contact when equipment fails. Architects and owner's project managers are increasingly flagging the absence of a structured warranty log as a submission deficiency.
What a Warranty Transmittal Log Is
A warranty transmittal log is a structured table listing every warranty included in the closeout package, one row per warranty, with standardized fields that make the coverage actionable for the owner's facilities team. It is the index to the warranty section of the closeout package, and it is the document the FM team will use in two years when equipment fails and they need to know whether it is still under warranty and who to call. A well-structured warranty log transforms a folder of PDFs into a usable reference document.
Why It Matters Beyond the Closeout Review
Most warranty disputes are about lost documentation, not bad workmanship
The FM team replaces a failed component two years after substantial completion. If they cannot produce the original warranty document with the correct contact information and warranty period, they cannot file a claim, even if the defect is clearly covered. A properly structured warranty log prevents this by putting all the information in one searchable place. It is not just a closeout deliverable; it is a risk management document for the building's operational phase.
From the GC's perspective, a complete warranty log also provides protection. It documents exactly what warranties were transmitted to the owner at closeout and when. If a warranty claim dispute arises later, you have a signed transmittal record showing what was delivered. Without it, a dispute becomes a "he said, she said" conversation about whether warranty documents were actually transferred at all.
What Each Entry Must Include
| Field | Description | Common Mistake |
|---|---|---|
| Equipment / System | Specific description of the equipment or system (e.g., 'Carrier 30XA Chiller') | Generic labels like 'HVAC equipment' that cannot be located in the field |
| Equipment Tag | The project tag number assigned to this unit (e.g., CHL-1, RTU-1, FA-1). Matches the tag on the equipment and in the as-built drawings. | Omitting the tag — makes it impossible for FM staff to locate the equipment without reviewing drawings |
| Model Number | Full manufacturer model number as printed on the nameplate (e.g., LGH180) | Using a shortened or approximate model number that does not match the nameplate |
| Serial Number | Full serial number from the equipment nameplate. This is the first thing any manufacturer asks when a warranty claim is filed. | Leaving blank — a warranty claim cannot be processed without a serial number |
| Warranty Provider | Manufacturer name or contractor providing the warranty | Listing the installing sub when the manufacturer warranty is the primary coverage |
| Warranty Type | Be specific: Manufacturer Parts & Labor, Manufacturer Parts Only, Contractor Workmanship, Extended Warranty, or Systems Warranty | Using vague labels like 'equipment warranty' that do not define what is actually covered |
| Parts Period / Labor Period | State each separately in years or months. Many warranties cover parts for 5 years but labor for only 1 year. Component-specific terms (e.g., compressor: 10 years) go in the Notes field. | Combining parts and labor into one period when the terms differ — the shorter period gets missed |
| Start Date | Date warranty begins, typically the equipment startup date. Verify against the startup report — not the substantial completion date. | Using the substantial completion date when startup happened months earlier, overstating remaining coverage |
| Expiration Date | Calculated end date for FM tracking. The log should calculate this automatically from start date + period. | Omitting and forcing the FM team to calculate manually — a common source of expired claims |
| Registered? | Whether the warranty was registered with the manufacturer (Yes/No/N/A). Many equipment warranties require registration within 30-60 days of startup or they are void. | Not tracking this — a warranty can be voided simply because no one registered it in time |
| Document Reference | File name of the warranty PDF in the closeout package, so the FM team can locate the underlying document | No cross-reference — the log entry cannot be matched to the actual warranty document |
| Claims Contact (Name, Phone, Email) | Direct name, phone, and email for the warranty claims department. Three separate fields for usability. | A general corporate 800 number with no department or email — claims get lost in the queue |
| Exclusions / Notes | What the warranty explicitly does not cover, plus any component-specific terms (e.g., compressor extended warranty period) | Leaving blank when significant exclusions exist — creates a dispute two years later about what was covered |
We produce a complete warranty transmittal log with every closeout package
Every warranty collected from your subs and manufacturers is documented, cross-referenced, and formatted for owner delivery. Fixed fee.
See What Is IncludedCommon Problems With Warranty Documentation
- Wrong start date: equipment warranties typically start on the factory startup date, not the substantial completion date. If startup happened four months before substantial completion, the warranty period is already four months consumed when the owner takes possession. The startup report should document the exact start date.
- Wrong party named: the warranty should be issued to the building owner, not the GC. Some manufacturer warranties are issued to "the original installer" or list the GC as the warranty holder, which creates a chain-of-title problem. Confirm that warranties are transferable and issued in the owner's name where required by the specification.
- Missing extended warranties: the specification may require extended warranty terms beyond the standard manufacturer period for specific items (five-year compressor warranty, ten-year heat exchanger warranty). If the installing sub did not purchase the extended warranty at the time of installation, it cannot be added retroactively. Review the specification's special warranty requirements early in the project.
- No usable claims contact: a warranty certificate with only a company name and mailing address is not useful for the FM team. The log needs a direct phone number and ideally a name or department. Generic 800 numbers that route to general customer service frequently result in claims being lost or rejected because the correct department cannot be reached.
- Expired warranties at closeout: if closeout is significantly delayed, shorter-duration warranties (one-year labor warranties) may expire before the package is delivered. Document the original warranty period and start date even if the warranty has since expired, so the owner has a clear record of what coverage existed.
How to Use This Template
- 1 At project kickup, identify all specification sections that include special warranty requirements longer than one year. Section 01 7800 (Closeout Submittals) typically lists them. Flag these requirements in your subcontracts so subs know what is expected.
- 2 At mechanical, electrical, and fire protection completion, request warranty documentation from each sub along with their startup reports. Confirm warranty start dates match the startup dates recorded on the startup reports.
- 3 As each warranty document arrives, add a row to the log with all required fields completed. Do not leave fields blank; "unknown" or "TBD" is better than blank because it flags a gap that needs follow-up.
- 4 Before submission, verify that every warranty document referenced in the log is actually included in the closeout package. Log entries with no underlying document are a common submission rejection cause.
- 5 Submit the warranty transmittal log as a standalone document near the front of the closeout package, separate from the individual warranty PDFs it indexes. Reviewers should be able to use the log as a guide to find any specific warranty without searching the full package.
Download: Warranty Transmittal Log Template
Free XLSX with 17 fields including serial number, equipment tag, split parts/labor periods, and warranty registration tracking. Includes conditional formatting that flags expiring warranties in 60 and 180-day windows, a warranty type dropdown, and six example entries across common equipment types. Formatted for professional closeout package submission.
Written by
Mark SullivanPrincipal Operations Lead, Closeout Desk
Mark Sullivan is Principal Operations Lead at Closeout Desk. He specializes in commercial construction closeout documentation and retainage recovery, helping subcontractors and general contractors assemble complete MEP closeout packages that get approved the first time.
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