Brands & Equipment
HVAC equipment warranties explained
The short answer
Most HVAC equipment comes with a parts warranty from the manufacturer (often 10 years) and a separate labor warranty from your installer. The parts coverage usually requires registering the equipment within 60–90 days of installation, miss that deadline and it can drop to a shorter base term. Most manufacturers also require documented annual professional maintenance to honor a claim. Select furnaces add a limited lifetime heat-exchanger warranty. Register on time, keep up maintenance, and use a qualified installer to protect your coverage.
Parts warranty vs. labor warranty, what's the difference?
Every HVAC system actually carries two separate kinds of coverage, and homeowners often confuse them:
- Parts warranty (from the manufacturer): covers the cost of failed components, compressor, heat exchanger, control board, and so on. Commonly 10 years on major brands when registered on time.
- Labor warranty (from your installer): covers the cost of the work to diagnose and replace those parts. The manufacturer's parts warranty does not pay for labor, that comes from your contractor, and the term varies by company.
This is why two quotes can look similar on equipment but differ a lot in long-term value: a longer labor warranty from a contractor who'll still be around is worth real money.
The registration trap (and the deadline that voids it)
Here's the single most common way homeowners lose coverage: the full parts warranty almost always requires registering the equipment with the manufacturer within a set window, typically 60–90 days after installation. Register on time and you keep the full term (often 10 years). Miss the deadline and the coverage usually drops to a much shorter base warranty (often just 5 years).
Nothing about the equipment changed, you simply lose half the coverage to a paperwork deadline. A good installer registers the equipment for you and gives you the confirmation; we do this so the deadline never becomes your problem.
Why annual maintenance keeps your warranty valid
The second common trap is maintenance. Most manufacturers' warranty terms require documented, professional annual maintenance, and they can deny a claim if a failure is traced to neglect with no service records to show otherwise. In other words, skipping your yearly tune-up doesn't just risk a breakdown, it can quietly void the coverage you're counting on.
Keeping dated service records is the proof that protects you. Our Healthy Home Club maintenance plan keeps your system on schedule and keeps that paper trail, see what's in an HVAC tune-up for what's actually checked.
Limited lifetime heat-exchanger coverage
Many higher-tier furnaces, including select models from the brands we install, add a limited lifetime heat-exchanger warranty. The heat exchanger is the furnace's most critical (and expensive) component, so lifetime coverage on it is genuinely valuable.
Two things to understand: limited means it covers the part under defined conditions (and still requires registration and maintenance), and like other parts coverage it typically doesn't include the labor to replace it. Worth having, just know what it does and doesn't pay for.
What voids an HVAC warranty?
The usual ways coverage gets voided or denied:
- Missing the registration deadline, drops you to the shorter base term.
- No documented annual maintenance, claims tied to neglect can be denied.
- Improper or undersized/oversized installation, a bad install can void coverage and cause the very failures it should have prevented.
- Unmatched components, pairing an outdoor unit with an incompatible indoor coil can void performance and parts coverage.
- DIY or unlicensed repairs, work by anyone other than a qualified technician can void the warranty.
Notice the theme: most voided warranties trace back to install quality and upkeep, exactly the things a qualified, in-house installer controls.
How Gray Duct protects your coverage
We protect your coverage from day one: we size and install the system correctly, register your manufacturer warranty on time, and keep dated maintenance records through our Healthy Home Club. Because we're a local, veteran-owned, in-house team, no subcontractors, the same people who install your system stand behind it and keep your paperwork in order.
- We register your warranty on time so you keep the full term
- Documented annual maintenance to keep coverage valid
- Correct, matched install, the top cause of denied claims, avoided
- Veteran-owned, in-house team, no subcontractors
Frequently asked questions
- Do I really have to register my HVAC equipment?
- For the full parts warranty, yes. Most manufacturers require registration within 60–90 days of installation to keep the full term (often 10 years). Miss it and coverage usually drops to a shorter base warranty. We register your equipment for you so you don't lose coverage to a deadline.
- Does my warranty cover labor too?
- Usually not from the manufacturer, their warranty covers parts. The labor to diagnose and replace those parts is covered by your installer's separate labor warranty, which varies by contractor. Always ask how long the labor warranty lasts.
- Can skipping maintenance void my warranty?
- Yes. Most manufacturers require documented annual professional maintenance, and can deny a claim if a failure is tied to neglect with no service records. Keeping dated records, which a maintenance plan provides, protects your coverage.
- What is a limited lifetime heat-exchanger warranty?
- It covers the furnace's heat exchanger for as long as you own the home, under defined conditions and with registration and maintenance kept up. Limited means it covers the part itself; it typically doesn't include the labor to replace it.
Keep learning
Related & next steps
Protect your equipment investment
From correct installation to on-time registration and documented maintenance, we keep your HVAC warranty valid. Ask about the Healthy Home Club or get a free estimate. See where we work.