How to Verify an Amarillo HVAC Company's Texas TDLR License

If you only do one thing before signing an HVAC quote in Amarillo, do this one. Texas has no general contractor license, no city contractor license, and no county one — for heating and cooling work the Texas Department of Licensing and Regulation (TDLR) is the whole story, and its free license search is the only document that tells you whether the company on your estimate is legally allowed to do the job. This guide walks through the lookup field by field, explains what the letters in a TDLR number mean, and covers the two questions people get wrong most often: what counts as “exempt,” and whether a “registered” technician is the same as a licensed contractor.

Palo Duro Air Repair is an independent referral service, not an HVAC contractor — we don’t perform the work, and the companies we connect you with are the ones whose licenses you should be checking.

Who licenses the trade, and why nothing else substitutes

TDLR’s Air Conditioning and Refrigeration program issues the Air Conditioning and Refrigeration (ACR) Contractor license. TDLR’s own FAQ puts it plainly: all non-exempt air conditioning and refrigeration work must be provided through a Texas-licensed Air Conditioning and Refrigeration Contractor who holds the required amount of liability insurance, and an out-of-state contractor needs a Texas license to offer that work here.

Two local notes that matter in the Panhandle. The City of Amarillo does not issue contractor ID numbers — if a company offers you a “city license number,” that is a red flag, not a credential, and the Building Safety Division has said as much. And Amarillo’s own roster is deep: a TDLR search for Amarillo returned well over a hundred licensed air-conditioning contractors across Potter and Randall County addresses when we pulled it, so “licensed” is the floor here, not a differentiator. Our best AC repair companies page lists the license numbers the established companies publish themselves — and still tells you to run the search.

The six-step TDLR lookup

1. Get the licensed name and the license number from the quote. Ask for the exact name on the TDLR license and the number. A licensed contractor has it on hand; the name on the truck or the Google listing is not always the licensed entity.
2. Open TDLR’s license search. tdlr.texas.gov/LicenseSearch is TDLR’s own free License Data Search; the ACR program’s search sits at the same address with ?program=ACR. No account, no fee. Search by number if you have it, or by name.
3. Read the status and the expiration date. An ACR contractor license is valid for one year from the date of issue — shorter than most states — so the expiration date is a live check, not a formality. Active, with a future expiration, is what you want. Expired or revoked is a stop.
4. Decode the number. TDLR formats a contractor license as title, class, number, endorsement — the agency’s own example is TACL/A/000000/C, which is why Amarillo companies print numbers like TACLA or TACLB followed by digits and a letter. The class letter tells you the scope (next section); the endorsement letter tells you which side of the trade. Either class is fine for a house. What you are confirming is that it is an air-conditioning contractor license, not a technician registration and not an unrelated TDLR trade.
5. Check the business the license is tied to, and the city. The record carries the license holder and their business affiliation. That business should be the one on your quote and your contract. If a salesperson’s company differs from the licensed one, get the relationship in writing before you sign.
6. Save the record, then ask who is doing the work. Screenshot or print the record with the date. Then ask who will be at the condenser: a person doing non-exempt maintenance must at a minimum be registered with TDLR as an Air Conditioning and Refrigeration Technician, and that registration is not a contractor license (more below).

Class A versus Class B, and the endorsement letters

TDLR issues the ACR contractor license in two classes. Class A “allows you to work on any size unit.” Class B “allows you to work on cooling systems of 25 tons and under, and heating systems of 1.5 million BTUs/hour and under.” A typical Amarillo house runs a two- to five-ton system, so a Class B contractor is fully licensed for residential work; the distinction matters for large commercial buildings, not homes. Don’t let anyone sell you up on “Class A” for a condenser swap.

The endorsements are Environmental Air Conditioning, Commercial Refrigeration, and Process Cooling or Heating — TDLR notes the latter two are limited to coolers, freezers, ice machines and temperature- and humidity-control equipment. Comfort cooling and heating for a home is the environmental endorsement; a license endorsed only for commercial refrigeration is a legitimate license for a different job.

What counts as exempt — and what people wrongly assume does

TDLR’s FAQ names one exemption worth knowing: air conditioning contracting regarding a portable or self-contained ductless air conditioning product with a cooling capacity of three tons or less — a window unit or a plug-in portable, in practice. It then closes the loophole people reach for: a mini-split is not self-contained, it is a split system, so contracting mini-split work for the public requires the ACR contractor license. Whether a homeowner may do work on their own house, and whether any dollar-value threshold exists, are questions this guide has not read in the statute itself, so we don’t answer them here — TDLR customer service at (800) 803-9202 will.

The license is separate from the building permit. Whether a like-for-like residential AC replacement needs a City of Amarillo mechanical permit is a question we have not confirmed with the Building Safety Division (806-378-3041), and Canyon and unincorporated Potter and Randall County each have their own answer; ask the contractor who pulls what, and verify with the office rather than with the contractor. What the city’s published exempt-work list does and doesn’t cover is walked through in our Amarillo HVAC permit guide.

“Registered” is not “licensed”

This is the distinction that trips people up on service calls. TDLR’s FAQ says a person performing non-exempt air conditioning and refrigeration maintenance must, at a minimum, be registered as an Air Conditioning and Refrigeration Technician. Registration involves no exam. The contractor license is the credential that carries the exam, the supervised-experience requirement, and the liability-insurance requirement, and it belongs to the person responsible for the work. The normal, legitimate arrangement is a registered technician working under a licensed contractor — so when a technician says “I’m registered with TDLR,” the next question is “and whose contractor license is this job under?” That number is the one to search.

What a license does and doesn’t tell you about insurance

To hold an active ACR contractor license, the contractor must maintain commercial general liability insurance at all times, at minimums TDLR sets by class — we don’t reproduce the amounts here because they are TDLR’s to publish and change. An active license therefore tells you a policy existed when the license was issued or renewed. It does not tell you the policy is in force this month, what it excludes, or whether the crew carries workers’ compensation. Ask for a current certificate naming the business and call the agent on it; on a hail-season condenser replacement that your insurer may be paying for, that call is worth the five minutes.

If the lookup — or the job — turns up a problem

TDLR’s Complaints and Enforcement page takes complaints to “inform TDLR of unlicensed activity or violations of the law and rules,” online, by phone at (512) 463-6599 or (800) 803-9202, or by mail to P.O. Box 12157, Austin, TX 78711. Unlicensed contracting is exactly the kind of report the agency asks for, so if the search comes up empty on a company that is advertising HVAC work, that is reportable. TDLR enforces its licensing law; it is not a court. If you are out money, keep your contract, the license record you saved, photos and invoices, and talk to a lawyer in parallel.

What this page deliberately doesn’t tell you

We have left out the application fee, the insurance dollar minimums, the technician registration fee, and the exam and experience details beyond the outline above, because each is a figure TDLR publishes and revises and this page would go stale the day it changed. We also don’t state whether Texas law requires the license number to appear on advertising, vehicles or contracts — we have not read that section of the statute — or the time limit for filing a complaint. TDLR’s pages and its customer-service line answer all of them; treat a contractor’s version of any of these as a claim to check.

Want a company whose license you can check in two minutes?

Request a quote through Palo Duro Air Repair and we’ll connect you with an independent, TDLR-licensed HVAC contractor serving Amarillo, Canyon and Bushland. Then do exactly what this page describes: take the licensed name and number off the estimate, run it at tdlr.texas.gov/LicenseSearch, and confirm an active ACR contractor license before anyone orders equipment. For the numbers to judge the estimate against, start with the AC repair cost guide and the AC replacement cost guide.

Sources, read October 23, 2026: Texas Department of Licensing and Regulation — “Apply for an Air Conditioning and Refrigeration Contractor License,” “Air Conditioning and Refrigeration Contractors FAQs,” “Complaints and Enforcement,” and the License Data Search (tdlr.texas.gov); City of Amarillo Building Safety Division pages (amarillo.gov, read September 2026); TDLR license roster for Amarillo (read September 7, 2026). Rules and fees change — confirm with TDLR before relying on any of this for a specific job.