When a Homeowner’s AC Dies, Does AI Name Your HVAC Company?
In a heat wave nobody reads ten websites. They ask their phone who can come today, and the assistant names the few heating and air companies it can check: the license, the towns, the hours. Run a free check and see what AI can read about yours.
What to do first
- Find out where you stand. The fifteen HVAC sites in our Los Angeles research scored anywhere from 5.3 to 9.4 out of 10. A number for the trade would tell you nothing about your own site.
- Put your C-20 in text. License number, the C-20 classification, and a link to the CSLB lookup, on the homepage or the about page, not only on the truck.
- Write down where you actually drive. The same towns on the site, the Google profile and every directory, and a smaller radius for night calls if that is the truth.
- Say what "24/7" and "same day" mean. Then make the hours on your profile agree with them.
- Look yourself up on your manufacturer's dealer locator. Check the phone, the address and the name against your own site.
- Take down the rebate and tax credit claims that expired. Then keep asking for reviews that name the job, which is the slow part and never finishes.
The check is one reading on one day. The free evaluation reads what your company publishes when it runs and gives back a score, the evidence behind it and the one issue to fix first. It does not follow what changes after that, and running it again on an unchanged site gives the same answer. If you want the record kept over the seasons and somebody doing the authorized work, that is ongoing AI visibility tracking from Digilu.
What we read on 15 HVAC company websites
Nobody shops for an air conditioning company on a mild afternoon. They shop when the house is 88 degrees inside, or when the furnace will not light on the first cold night, and more of them now ask a phone assistant who can come today. The assistant answers with a few names. It can only name a heating and air company it can read and check.
We evaluated fifteen Los Angeles area HVAC websites for our public signal research: sites we chose, scored on six pillars from what a visitor, a crawler or an answer engine can read from the public web. None of them asked to be evaluated and none are our clients. The scores ran from 5.3 to 9.4, and every report is published with its own date and engine version.
- HVAC contractors: 15 sites in the Los Angeles area.
- Score range: 5.3 to 9.4 out of 10, one report per site.
Every one of these companies installs and repairs the same kinds of equipment. What separated the top of the range from the bottom was how much a machine could confirm without calling: who holds the license, which towns they serve, what they install, when somebody picks up.
The fifteen reports were scored by two versions of our engine, so we do not average them: each report carries its own score, date and engine version. They describe these sites, not HVAC companies in general. HVAC is one trade in our home services guide, which also covers electricians, plumbers and roofers.
Your C-20 license is the fact an answer can check
In California the proof that a heating and air company is real sits in a state database, not on the company's website. The C-20 is the classification for a contractor who "fabricates, installs, maintains, services and repairs" heating, ventilating and air conditioning systems, including the ducts, registers, flues and thermostatic controls (CSLB, C-20 classification).
Three records stack on top of each other for an HVAC company, and each one can be looked up by someone who is not you:
- The state license. The Contractors State License Board says the license number must appear on every contractor advertisement, including "an online ad" and "the company's name on the side of a truck" (CSLB). A CSLB license check shows the status, the bond and the workers' compensation record. CSLB requires workers' compensation of every active C-20 contractor whether or not the company has employees (CSLB workers' compensation requirements), so a C-20 record with an exemption on it is a contradiction anyone can see.
- EPA Section 608. Technicians who maintain, service, repair or dispose of equipment that could release refrigerant must be certified under EPA Section 608. It belongs to the technician, not the company, so the honest sentence on a site is how many of your technicians hold it and at what type, not "EPA certified company".
- NATE. North American Technician Excellence is a voluntary, industry-run certification, earned by a technician in named specialties such as air conditioning, heat pumps, gas heating and air distribution (NATE). If your people hold it, name the specialties. A NATE logo in the footer with no technician behind it is a claim that fails the first time someone asks.
Publish the license the way the board prints it: the number, "C-20", the business name exactly as licensed, and a link to the lookup. A license number that only exists inside a photo of the van is a number no crawler can read. If the company name on the site and the name on the license differ, say why, for example a d.b.a.
The manufacturer's dealer locator is a page about you that you did not write
Carrier, Trane and Lennox each run a public dealer locator. If you sell their equipment, one of those pages carries your name, your phone, your address and sometimes a rating, and it is written by the manufacturer, not by you.
- Carrier Factory Authorized Dealer. Carrier says these dealers must "maintain all required local licenses", carry appropriate insurance, and honor its 100% Satisfaction Guarantee (Carrier). If you hold the status, the site should say so in words, with a link to your listing.
- Trane Comfort Specialist. Trane's dealer locator lists its Comfort Specialists by city. Check that the listing names the towns you actually serve and the number that actually rings.
- Lennox Premier Dealer. Lennox says its Premier Dealers "must maintain a 4-star rating among consumers" and that the ratings appear on its dealer locator pages (Lennox). That rating is about you and sits on a page you do not control.
Nobody outside these companies knows how an assistant weighs a manufacturer listing against your own site, and we have not measured it. What is certain is that it is a second public record of the same business. When the locator shows last year's phone number and the site shows this year's, a reader has two answers and no way to pick. And the reverse rule matters as much: do not put a manufacturer's logo or program name on your site for a status you do not hold. Reviews follow the same logic. Ask every customer, not only the happy ones, and remember the FTC's 2024 rule bans fake reviews, reviews bought on the condition that they are positive, and suppressing negative ones (FTC).
No showroom: how an assistant learns which towns you drive to
Most heating and air companies run out of a shop or a warehouse that no homeowner ever visits. The address on the license is not where the work happens, so an assistant answering "AC repair in" a named town has to work out from what you publish whether your trucks go there.
Google treats that as a service-area business. It asks for one profile for the central office "with a designated service area", for the address to be hidden if customers are not served there, and for a service area that "shouldn't extend farther than about 2 hours of driving time" from the base (Google Business Profile guidelines).
HVAC adds a wrinkle other trades rarely have: the radius for a maintenance visit booked a week out and the radius for a no-cooling call at 9 p.m. are often different. Say both. A list of forty cities in the footer and a dozen nearly identical city pages, each calling you "local", is three answers to one question. One list of real towns, in plain text, matching the profile, is one answer.
Heat wave, cold snap: the week your claims get tested
HVAC demand arrives with the weather, all at once. The first hot week of summer and the first cold night of winter are when "24/7", "same-day service" and "no overtime charges" stop being marketing and become promises that a lot of people test on the same evening.
Google asks a profile for "regular customer-facing hours" (Google Business Profile guidelines), so a site that says 24/7 next to a profile that closes at 5 is a contradiction every reader sees. Write what the promise really is: an on-call technician with an after-hours rate, an answering service that books the morning, or same-day only when the call comes in before noon. Say which brands you service and whether a no-heat call at night gets a truck. When the queue is two days long in a heat wave, the site should say so, because the review that reads "they promised today, came Thursday" is the sentence a summary keeps.
Maintenance plans, rebates and the numbers that expire
HVAC sites carry more dated claims than most trades: this season's tune-up price, a utility rebate, a federal tax credit, a refrigerant rule. Each one has an official source an assistant can check it against, and a page that was right two years ago can be wrong today without anyone touching it.
- Say what the maintenance plan includes. Visits per year, heating and cooling or both, what is checked, what discount applies to repairs, and the price or how it is set. "Priority service" means nothing a reader can hold you to until it says how much sooner.
- Check every tax credit line. The IRS describes the Energy Efficient Home Improvement Credit as allowed for qualifying property "placed in service on or after Jan. 1, 2023, and before December 31, 2025" (IRS). A heat pump page still promising that credit on a 2026 install is making a claim the source contradicts.
- Date your rebate pages. State and utility incentives such as TECH Clean California change as programs are funded and closed. Link to the program itself and write the date you last checked it.
- Be careful with refrigerant claims. The EPA rules on which refrigerants new residential systems may use have been written and amended more than once since 2023 (EPA Technology Transitions). A page that tells homeowners what is "banned" needs checking against the current rule, or needs to come down.
Repair or replace: answer the question homeowners actually type
The most common HVAC question is not "who installs Carrier". It is "is my 15-year-old air conditioner worth fixing". The company that answers that plainly, on its own site, gives an assistant something to quote. The one that only lists "repair, replacement and installation" gives it nothing.
Write the answer the way you would say it in the driveway: what you check, what makes a repair sensible, what makes it a waste of money, and roughly what a replacement involves. In California that includes the permit. CSLB told C-20 contractors in writing that a building permit is required for an HVAC change out, "including the air-handler, coil, furnace or condenser" (CSLB open letter to C-20 contractors). If you pull permits, say so.
- Name the jobs, not the category. "Furnace replacement", "ductless mini split for a garage conversion", "heat pump to replace a gas furnace", "duct sealing". Those are what people ask. "Residential and commercial HVAC solutions" is not.
- Only list what you do. If you do not install boilers or commercial rooftop units, leave them off. When the services page and the C-20 scope disagree, an assistant has a reason to repeat neither.
- Use the type that matches your license. The structured data vocabulary has a specific HVACBusiness type. Use it rather than a generic local business.
- Show real equipment you installed. A photo of your own crew's install, with the town, says more than a manufacturer's stock image of a condenser on a lawn.
Where AI visibility work falls short for an HVAC company
- A no-cooling call goes to whoever answers. On a 105 degree evening the homeowner calls the first number that picks up. No page replaces a phone that is answered.
- The weather sets the volume. A clear, checkable site helps you get chosen. It does not make a mild summer busy.
- Paid placements are their own system. Local Services ads are bought and screened on their own terms (Google Local Services screening). This work does not put you in them, and they do not fix an unreadable site.
- Manufacturer listings are theirs. You can ask for a correction on a dealer locator. You cannot decide what it says or how it ranks.
- A clean site cannot outrun bad reviews. If reviews describe missed appointments, a better services page will not change what a summary says.
- Our evidence is narrow. Fifteen sites in one metro area, scored by two engine versions, and no measured set of HVAC prompts. We have not shown that any single change here moves an AI answer.
Nothing on this page is legal or tax advice. Licensing, permit, refrigerant and incentive rules are set by federal, state and local agencies, and they change.
Questions HVAC company owners ask about AI
Each page answers one question for an owner-operated heating and air company, with the license board, IRS, EPA, platform and manufacturer sources it rests on.
- Where should my C-20 license number go on my website so AI can check it?
- Is my website blocking ChatGPT and other AI from reading it?
- Does my Carrier, Trane or Lennox dealer listing change what AI says about my company?
- How does AI know which cities my HVAC company serves if I have no storefront?
- Can I say 24/7 emergency AC repair if nobody answers at 2 a.m.?
- How should I describe my maintenance plan so AI can explain it to a homeowner?
- How do I write a repair or replace page that AI will quote?
- Which HVAC reviews does AI read: Google, Yelp, the BBB or my dealer page?
- Can I still advertise the federal heat pump tax credit in 2026?
- Where does AI visibility work fall short for an HVAC company?
HVAC Companies and AI Search
A short list of heating and air companies it can find and check in public: the company website, the Google Business Profile, directories, manufacturer dealer listings and reviews. ChatGPT, Perplexity and Google AI Overviews all answer this kind of question, and none of them publishes how it chooses one HVAC company over another.
Yes, in text, with the C-20 classification, the business name as licensed and a link to the CSLB license lookup. The Contractors State License Board says the license number belongs on every contractor advertisement, online ads and the name on a truck included. A number that only appears in a photo cannot be read by a crawler.
It adds a second public record of your business, written by the manufacturer. We have not measured how assistants weigh it. What matters is that the dealer locator and your own site agree on your name, phone, address and service area, and that you never claim a dealer status you do not hold.
Yes, accurately. EPA Section 608 certification belongs to each technician who handles refrigerant, and NATE is a voluntary certification earned in named specialties. Say how many of your technicians hold each and in what, rather than calling the whole company certified.
Check the IRS first. The IRS describes the Energy Efficient Home Improvement Credit as allowed for qualifying property placed in service on or after January 1, 2023, and before December 31, 2025. A page promising that credit on a 2026 installation says something the official source contradicts. This is not tax advice.
Exactly as it works. Say whether nights mean an on-call technician with an after-hours rate, an answering service that books the morning, or same-day only before a cutoff time, and make the hours on your Google profile match. A promise that fails in a heat wave becomes the review a summary repeats.
Yes. The AIOInsights check is free, needs no account, and returns a real, deterministic score with the single fix that matters most. A deeper Full Evaluation is available through Digilu.
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