How to Choose an HVAC Company in Austin Without Guesswork

Knowing how to choose an HVAC company matters more in Austin than in most places, because the decision often gets made at the worst moment: a hot August evening, a dead system and someone at the door with a tablet. This guide gives you the checks to run before that happens, in the order that saves the most time.

It is written by a referral line, so here is the disclosure up front. Austin AC Service does not do HVAC work. It connects callers with independent, locally owned companies that hold active Texas air conditioning and refrigeration contractor licenses, and it may be paid a referral fee by them. Nothing on this page names or ranks any company. Use these checks on whoever you end up talking to, including a company you reach through the line.

Start with the license: a two-minute lookup

In Texas, heating and cooling work is regulated by the Texas Department of Licensing and Regulation, known as TDLR. A company that installs or repairs air conditioning has to work under a licensed air conditioning and refrigeration contractor, and the people it sends to your house must at least be registered as technicians with TDLR. Here is how to confirm the license.

1. Get the number. Ask for the contractor license number. Texas contractor numbers start with TACLA (Class A, any system size) or TACLB (Class B, which covers up to 25 tons of cooling and essentially every house).
2. Open the TDLR license search. Go to tdlr.texas.gov and choose the license search. Pick Air Conditioning and Refrigeration Contractor as the license type.
3. Search by number, then by name. The number is more reliable. Searching by name as well shows whether the license really belongs to the business on your quote.
4. Read the result. Look for an Active status and an expiration date in the future. Inactive, expired or suspended licenses do not authorize work.
5. Check discipline. TDLR publishes enforcement actions against air conditioning contractors. A single old fine is not necessarily a deal breaker; a pattern is.

Where the license number should already appear

You may not have to ask. Texas rules for air conditioning contracting companies, in 16 Texas Administrative Code section 75.71, require the license number in plain view in several places. If it is missing everywhere, that tells you something.

• On the trucks. The company name and its licensee's number in letters at least two inches high on both sides of every vehicle used for the work.
• In advertising. Ads soliciting air conditioning work must include the license number. Nationally placed television ads are the exception.
• On proposals and invoices. The company name, address and phone number and the licensee's number on every proposal and invoice.
• A consumer notice. A statement that the company is regulated by TDLR, with TDLR's address, phone number and website, on proposals, invoices and written contracts.

The written diagnosis and price come first

A careful company tells you what failed and what it will cost before it picks up a tool. For a repair, that means the specific part named (a capacitor is not a compressor), the labor, any refrigerant with the amount in pounds, and a total. If there is a diagnostic fee, ask what it is up front and whether it is credited toward the repair.

Then ask the question many homeowners skip: is repair an option here? If the company recommends replacement, it should be able to say why repair does not make sense, with the repair price next to the replacement price. A straight answer is one of the strongest signals you will get about a company. A refusal to price the repair is a signal too.

For a replacement: permit and Manual J

Inside Austin city limits, replacing a heating or cooling system requires a mechanical permit and a city inspection, and the suburbs have their own building departments with similar rules. The installing contractor normally pulls the permit. Ask whether it is included in the price and who is on the hook if the inspection fails. A company that offers a discount for skipping the permit is offering to skip the one independent check on its work.

Sizing is the other half. The residential code that Texas cities build on says heating and cooling equipment must be sized from the house's actual loads, using ACCA Manual J for the load and Manual S for picking equipment. In practice a Manual J looks at insulation, windows and which way they face, air leakage, duct location and Austin's design temperatures, room by room. Matching the tonnage of the old unit or using a square-foot rule of thumb skips all of that. Oversized systems cool fast, shut off, and leave the house cool but clammy, which is a common complaint in Central Texas humidity.

Ask for the load calculation, and ask to see the result next to the size being proposed. If the quoted system is much bigger than the calculation calls for, the company should be able to explain why.

Reading reviews without being fooled by them

Star averages are the least useful part of a review profile. A few habits get more out of them:

• Sort by newest. Companies change owners and staff. What happened four years ago matters less than last month.
• Read the three-star reviews. They tend to describe what actually happened, without the anger or the gushing.
• Look for specifics. "Explained the repair and gave me the price first" tells you more than "great service!"
• Watch how the company replies to complaints. A calm, specific answer to a bad review is a good sign. Silence or a fight is not.
• Notice bursts. A pile of short, glowing reviews posted in the same week is worth a second look.
• Match the job. Praise for a fast capacitor swap does not tell you how a company handles a full replacement with ductwork.

Reviews describe how a company treats people. The license, the permit and the written quote describe how it does the work. You need both.

If something goes wrong: the TDLR complaint process

Most disputes start with a phone call to the company's owner or service manager, with your quote and invoice in hand. If that does not resolve it and you believe the work broke the rules, such as unlicensed work, no permit, or work that does not meet code, TDLR takes complaints.

1. Gather the paperwork. The quote, invoice, license number, photos, texts and dates. TDLR says a complaint without enough information may not be opened for investigation.
2. File it. Online at tdlr.texas.gov/complaints is fastest. Email and mail are also accepted, and TDLR's customer service line at 1-800-803-9202 can help with the form.
3. Mind the clock. TDLR states that complaints must generally be filed within two years of the event.
4. Separate the money question. TDLR can discipline a license holder. Getting money back is a separate matter, often for justice court or a lawyer.

The short version

Verify the license, get the diagnosis and the price in writing, ask whether repair is an option, insist on a permit and a load calculation for any replacement, and slow down whenever the urgency comes from the salesperson rather than the equipment. The free refrigerant guide goes deeper on reading replacement quotes, and the Austin Energy rebates guide covers the participating contractor rule if you are on Austin Energy.

1. Call any hourAn automated assistant answers (737) 378-9016 and asks whether it is about cooling or heating.
2. Describe the problemGive your name, a callback number, your city or ZIP and what the system is doing.
3. Get put throughThe call goes to an independent, locally owned HVAC company, which hears a short summary before it picks up.
4. Deal with them directlyThat company diagnoses, quotes, does the work and is paid by you. If it cannot answer, it gets your details to call back.

Finding a licensed company near you

Callers from across Travis, Williamson and Hays counties use the line. Pick your city for its utility, permit office and housing details.

• All Austin-area service areas
• South Austin
• Round Rock
• Cedar Park
• Pflugerville
• Georgetown
• Leander
• Kyle
• Hutto
• Buda
• Lakeway
• Manor
• Dripping Springs