Switching HVAC companies: what comes with you
By Brandon Bamba, Mission Commander · September 2, 2026 · 8 min read
By Brandon Bamba, Mission Commander · September 2, 2026 · 8 min read
Almost everything people worry about losing when they’re switching HVAC companies was never their contractor’s to hold in the first place. The warranty on your equipment was issued by the manufacturer who built it. It doesn’t care who you call next.
There’s no transfer form, no fee, and nobody’s permission to get. There’s exactly one thing that genuinely doesn’t come with you, and if your current company has stopped answering the phone, you’ve most likely already lost it.
A couple here in the Valley phoned us on a weeknight. We had them on the schedule first thing the next morning.
They weren’t shopping. They had a company. Same outfit had handled their maintenance for years. Then something broke, and the phone just stopped getting answered. Voicemails, no callbacks, nothing. Eventually they went looking for somebody else, which is how we ended up in their driveway.
We called ahead to confirm we were still good to come over, and asked whether they wanted anything on the way. Coffee, cold drink, anything. Asked who else was in the house so we knew. They’d already had their coffee and were all set.
Small thing. It is also the entire difference between a company you can reach and a company you can’t, and they noticed it before we ever opened a panel.
Then we went through the equipment properly and sat down with both of them to walk through what we found. They already knew how old their system was, both of them, which is more than most people can tell you about their own house. And when we got to the repair number, it landed about where they’d figured it would. They’d talked it over between themselves before we came inside. Nothing about the number surprised them.
That’s what happens when the explanation comes before the price instead of after it. The number stops being a reveal.
The limited warranty on your equipment is issued by whoever built it. Trane, American Standard, Carrier, Goodman, Lennox. Not by the company that carried it into your house. If that company closes, changes names, or stops picking up, the manufacturer’s obligation on your parts doesn’t go anywhere.
What changes is who does the paperwork. Both Trane and American Standard describe the claim as something your dealer submits, so your new company diagnoses the failure, sources the part, files the claim, and does the repair.
Ask a company you’re considering one question: do you handle warranty claims for this brand? Most established shops do, and you’ll know in about four seconds.
That’s the entire transfer process.
Everything a new company needs to get started is printed on the data plate. Photograph it on both units, outdoor and indoor, and you’ve answered most of what anybody will ask you.
Model number and serial number. That’s the file.
If you happen to still have the original proposal or your labor warranty terms, hang onto them, they’re useful. If you don’t, nothing is lost. A good tech learns more from an hour with your equipment than from a folder of old paperwork, and more still from you describing which room never gets comfortable and what time of day it happens.
One thing is worth four minutes, and it has nothing to do with switching. It’s just something most homeowners have never checked.
Most major manufacturers extend your parts coverage substantially when the equipment gets registered shortly after installation. Trane puts it plainly: the “Registered Limited Warranty lengthens the term of your warranty if your product is registered within 60 days of installation.” Base coverage typically runs five years on parts. Registered coverage typically runs ten. American Standard uses the same sixty-day window and the same five-versus-ten structure.
Nobody sends you a letter about which one you ended up with.
So look it up. Grab the model and serial numbers and use this directory of manufacturer warranty lookup tools. It covers around forty brands and sends you straight to the manufacturer’s own portal, where you can usually download the certificate.
Four minutes, and there’s a decent chance you’ll find you have more coverage than you thought.
Manufacturer warranties cover parts. They don’t cover the labor to install them. American Standard says it directly: “it covers the cost of parts that might fail due to manufacturer defect, but not the labor to repair them.” Trane’s base and registered warranties are parts-only as well.
So when anyone tells you a repair is under warranty, the useful follow-up is what you’re paying out of pocket. Nobody’s hiding anything, that’s simply how the coverage has always been written. Ask before the truck comes back and there’s no surprise on the invoice.
Your labor warranty.
If your installing contractor gave you one or two years of labor coverage, that promise was theirs, not the manufacturer’s, and a new company doesn’t inherit it.
Here’s the part worth sitting with, though. If they’ve stopped answering the phone, that promise was already gone. Staying put doesn’t protect something nobody is honoring. That’s usually the clearest signal people get that it’s time to move.
Skip this one if it doesn’t apply to you.
If you paid up front for a plan and the visits stopped, you have more options than most people realize. HVAC contractors in Alabama are licensed through the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors, and the board publishes its complaint process. You file, you get a case number, the contractor gets a twenty-day due process window, and after that you can request an inspection from a state compliance officer. It ends either with the contractor doing the work and a re-inspection, or with you pursuing a claim against their bond.
The board also keeps a public archive of disciplinary actions worth a look before you hire anybody new. And if you paid by credit card, ask your issuer about their dispute window for services never delivered.
We fix air conditioners and we’re not attorneys, so treat that as a map of where to look. But a complaint to the state board costs a stamp, and most people never find out it’s available.
You should hear from somebody before the truck shows up, and you should know who’s coming.
The visit itself should end with you understanding your own system better than you did that morning. Age, condition, what’s wrong, what it’ll cost, what happens if you wait. In writing, with the numbers on it. If the explanation comes after the price instead of before it, that’s backwards, and you’re allowed to say so.
And nobody should be annoyed when you say you want to think about it or get another quote. That reaction tells you everything the sales presentation was designed to hide.
Two things, stated plainly, because the article would be dishonest without them.
We file the warranty registration on every system we install. It’s part of the job, not an upgrade and not something you have to ask for. It takes a few minutes and it’s the difference between five years of parts coverage and ten, and we’ve never heard a defensible reason it isn’t standard everywhere.
Our labor warranties run up to twelve years, depending on the equipment and which protection plan you choose. Here’s the honest asterisk, since this whole article has been about what happens when promises outlive the company that made them: a labor warranty is a promise about the contractor, not about the equipment. Twelve years of labor coverage is worth exactly as much as the odds somebody is still answering that phone in twelve years. That’s a fair thing to weigh, and it’s worth asking any company who stands behind theirs.
Start with a visit that ends in a written field report. Age, condition, what’s wrong, what it costs, what happens if you wait, with the numbers on the page and the explanation before the price.
Then decide. Take it to somebody else and compare it if you want to. We’d rather be the second quote you trust than the first one you felt rushed into.
Age, condition, what is wrong, what it costs, what happens if you wait, with the numbers on the page and the explanation before the price.
Then decide. Take it to somebody else and compare it if you want to. We would rather be the second quote you trust than the first one you felt rushed into.