A contractor who replaces a part under warranty is owed labor reimbursement by the manufacturer. That obligation is real, it is routine, and a meaningful share of it is never collected, because collecting it takes paperwork filed correctly inside a window that starts on the day of service. This is how that process actually works.
What is actually claimable
Four things, and most shops only think about the first. Labor reimbursement, which is what a manufacturer pays for the work of replacing a part that failed under warranty. Parts credit, where the failed component itself is covered. Manufacturer rebates, which are program based and usually deadline bound. And dealer tier or co-op credits, which accrue on volume or training and expire on a program schedule.
The part is usually handled, because somebody had to order the replacement and that creates a record. The labor is the piece most often left unfiled, because nothing in the shop generates a record that it is owed.
Why claims go unfiled
Not carelessness. Structure. A work order closes when the job is done, and closing it is the last event in that job's life inside the system. There is no subsequent step, no queue, and nothing anywhere that turns red.
An unfiled claim also generates no complaint. No customer calls about it, no technician raises it, and it never appears as a line on a report. Every other problem in a home services business announces itself. This one is silent by construction, which is exactly why it persists in well run companies.
The people who would catch it are the same people covering dispatch, answering the phone and closing the books. When the schedule is full, the work with no deadline attached to a human being is the work that waits.
The filing window, and why it is shorter than it looks
Manufacturers set a window between the service date and claim submission. The number varies by manufacturer, by program and sometimes by dealer tier, which is the first reason it cannot be held in anyone's head.
The window is rarely the only condition. A claim typically also needs the equipment registered, the serial number matched, the failure coded correctly, and the failed part either returned against an RA number or documented. Miss one and the claim is rejected, and a rejection does not restart the clock.
So the real deadline is the filing deadline minus however long it takes to assemble four things from three different systems. Shops that measure this usually find the effective window is a fraction of the stated one.
Why claims get rejected
Unregistered equipment, which shortens or voids the term and is discovered only when the claim is refused. A serial number that does not match what the manufacturer has on file. A failure code that does not correspond to a covered failure mode. A missing RA number on a part that needed returning. And submission after the window, which is the one nobody can appeal.
Almost every rejection reason is knowable before submission. That is the useful thing about this process: it is bureaucratic rather than uncertain. The rules are published, they just are not convenient.
How to audit your own last ninety days
You do not need software or a vendor to find out how big this is, and it is worth knowing either way.
Pull every closed work order from the last ninety days. Filter to jobs where a part was replaced under warranty. That is your eligible set. Now pull every warranty claim you actually submitted in the same period and match them against each other.
The unmatched jobs are the number. Then check how many of them still fall inside their filing window, because that splits the figure into what is recoverable now and what is already gone.
Most owners who run this for the first time are surprised twice: once by the size of the unmatched set, and again by how much of it is still inside the window and therefore still collectable.
The three ways to handle it
Absorb it, which is what most shops do by default, usually without having measured what is being absorbed.
Hire for it. There are 250 to 500 open warranty coordinator and claims administrator roles in the United States at any given time, paying $45,000 to $110,000 a year fully loaded. That is a real market rate for a real job, which tells you the work has value; it also tells you what the work costs when a person does it.
Automate it. The work is rule bound, high volume and low variance, which is the profile automation handles well. The honest caveat is that the exceptions are where the money and the risk concentrate, so anything doing this should put a person in front of a rejection or a judgement call rather than guess.
What good looks like
Every closed job with an eligible claim is flagged the day it closes, not at month end. Claims are assembled with the documentation that specific manufacturer requires rather than a generic packet. Filing happens inside the window with margin, not on the last day. Status is tracked to paid rather than to submitted. And every rejection returns a reason in language somebody can act on.
Measured, it is four numbers: claims filed, approved, still open, and rejected with reason. If a process cannot produce those four, it is not being run, it is being hoped for.
Questions
- How long do you have to file an HVAC warranty claim?
- It varies by manufacturer, by program and sometimes by dealer tier, and the window is measured from the service date rather than from when the paperwork was started. Because a claim also needs registration, a matching serial, a correct failure code and often a returned part, the effective deadline is earlier than the stated one.
- What is warranty labor reimbursement?
- What a manufacturer pays a contractor for the labor of replacing a part that failed under warranty. The part itself is covered separately. Labor has to be claimed, and it is the piece most often left unfiled because nothing in a shop's system generates a record that it is owed.
- Why do warranty claims get rejected?
- Most commonly: the equipment was never registered, the serial number does not match the manufacturer's record, the failure code does not map to a covered failure, a returned part has no RA number, or the claim was submitted after the filing window closed. Every one of those except the last is knowable before submission.
- How do I find out how much my company is owed?
- Pull your closed work orders for the last ninety days, filter to jobs where a part was replaced under warranty, and match that list against the claims you actually submitted. The unmatched jobs are your number. Then check which of them are still inside their filing window to see how much is still collectable.

