What Your HVAC Warranty Actually Covers (And What It Does Not)
Most homeowners find out what their warranty excludes at the worst possible moment. Here is the breakdown before you need it.
A manufacturer HVAC warranty covers the parts only — typically five to ten years on components and ten years or more on the compressor — and almost never covers the labor to install them. Labor warranties come separately from the installing contractor. Most manufacturer warranties also require registration within 60 to 90 days of installation and documented annual professional maintenance.
The three separate warranties on your system
People say "my system is under warranty" as if that is one thing. It is usually three, with different terms, different issuers, and different ways to lose them.
| Warranty | Who issues it | What it typically covers |
|---|---|---|
| Parts | Equipment manufacturer | 5–10 years on components; often 10–12 on the compressor or heat exchanger. Parts only, not labor. |
| Labor | The installing contractor | 1–2 years standard, sometimes extendable. Covers the cost of doing the work. |
| Extended / concierge | Manufacturer or third party | Purchased separately. Extends parts, labor, or both. Read the exclusions carefully. |
The gap that surprises people is the middle one. A compressor failing in year eight may be covered as a part — but the labor to recover refrigerant, swap the compressor, evacuate, and recharge is a significant bill that the parts warranty does not touch.
Registration: the 60-day window most people miss
Most manufacturers offer a base warranty of five years and an extended warranty of ten, with the difference being registration within 60 to 90 days of installation. Miss the window and you silently drop to the shorter term. Nobody tells you at the time.
A good contractor registers the equipment for you and sends you the confirmation. If you cannot find confirmation for your own system, look up your model and serial numbers — usually on a sticker inside the air handler door and on the outdoor unit nameplate — and check the manufacturer site. Some will still register late equipment if you ask promptly.
What voids coverage
These are the exclusions that actually come up when a claim is filed.
- No documented annual professional maintenance. Manufacturers increasingly request service records with major component claims.
- Installation by an unlicensed contractor, or a permit never pulled where one was required.
- Mismatched equipment — a new outdoor unit paired with an old indoor coil is the classic case.
- Damage from operating with a restricted filter, a known leak, or after a documented failure.
- Modifications to the equipment or use of non-approved replacement parts.
- In most cases, transfer to a new homeowner without following the manufacturer transfer process.
The records worth keeping
Keep a folder — paper or digital — with the installation invoice showing model and serial numbers, the registration confirmation, the permit if one was pulled, and every maintenance invoice since. That folder is what makes a warranty claim straightforward instead of a negotiation.
What we do about it
We register every system we install and send you the confirmation. We keep your service history on file so it is available when a claim needs supporting documentation. And when a part is under warranty, we tell you — because the only person who benefits from you not knowing is a contractor billing you for a free part.
Frequently asked
Does an HVAC warranty cover labor?
Manufacturer warranties almost never do. They cover parts only. Labor coverage comes from the installing contractor and is typically one to two years, sometimes extendable at purchase.
Do I have to register my new HVAC system?
Usually yes, within 60 to 90 days, to receive the full extended parts warranty instead of the shorter base term. A good contractor handles it for you and sends confirmation.
Can skipping maintenance void my HVAC warranty?
It can jeopardize a claim. Most manufacturers list annual professional maintenance as a condition of coverage and may request service records when a major component claim is filed. Keeping receipts is cheap insurance.