On September 20, 2026, Kodec ran the exact question a Boulder City homeowner types into an AI assistant — "I need a good HVAC company in Boulder City NV for an AC repair. Who do people actually recommend, and what should I look for to pick a good one?" — through ChatGPT and Google AI Mode. Both engines answered with company names. Neither answer was the same. The structured capture is below, verbatim.
The two engines overlap on exactly two names
ChatGPT's answer runs roughly ten company names across its full length. Google AI Mode's names four. The overlap between the two lists is exactly two businesses: Modern Air Conditioning & Heating and Knight AC & Heating. Every other name is engine-specific, which means a homeowner who asks ChatGPT and a homeowner who asks Google AI Mode on the same afternoon walk away with almost entirely different shortlists.
- In ChatGPT only: A‑Tech Heating & Cooling, LLC; One Hour Air Conditioning & Heating; Express Home Services.
- In Google AI Mode only: Boulder City Air Conditioning; Richner Air Conditioning, Refrigeration & Heating.
- In both answers: Modern Air Conditioning & Heating; Knight AC & Heating.
The two engines also disagree on the same business's numbers, on the same day. ChatGPT reports Modern Air Conditioning & Heating as "5.0 from 23 reviews"; Google AI Mode renders the same company as "5.0 (43)." Knight AC & Heating is "Superb reviews (~4.7–5)" to ChatGPT and "4.9 (55)" in AI Mode. The engines are not reading the same review set — one is summarising aggregator pages, the other is rendering its own local business data.
There is a geographic split inside the answers too. ChatGPT tags One Hour Air Conditioning & Heating as "(Las Vegas)" and adds a postscript that further names it mentions serve Boulder City but are based in Las Vegas or Henderson. Google AI Mode frames its list the opposite way, opening with "Several tightly knit, highly rated local operators consistently come recommended for Boulder City, rather than just the massive Las Vegas/Henderson franchise conglomerates." If your shop is physically in Boulder City, that sentence is the one currently doing the work for the four names it lists.
Where the two answers came from: 6 sources vs. 21
ChatGPT cites six sources for the whole answer, and they are aggregator-shaped: angi.com's Boulder City HVAC company list (which feeds the first names in the answer), bestprosintown.com on two pages, homeadvisor.com on two pages, and one vendor-owned page — a company's own "Boulder City, NV" service-area page. That last one is the structural tell: the engine is willing to lift a company's self-published service-area page into what reads as an independent recommendation list.
Google AI Mode cites 21 sources, and every titled entry we captured resolves to a google.com searchviewer URL — the engine's own local business data and map listings, not third-party editorial. Its four named companies arrive with street addresses attached (Nevada Way, Forest Ln, Industrial Rd, Canyon Rd), which is the signature of a business-profile render rather than a citation of anyone's website.
Not all 21 are on-target for a Boulder City query. Two of the source titles are for different markets entirely — one is titled for Boulder rather than Boulder City, another for Lake City — and both are served from google.com searchviewer URLs. When the retrievable local material for a market is thin, out-of-market pages get pulled into the evidence base the answer is built from.
There is no Boulder City journalism in the layer the AI reads
Not one source in either answer is a Boulder City publication. No local news outlet, no local business writeup, no local trade coverage appears across ChatGPT's six sources or Google AI Mode's 21. ChatGPT leaned entirely on nation-scale directories. Google AI Mode leaned entirely on its own business data. The AI's picture of Boulder City HVAC is assembled from review aggregators plus the business profiles of companies that have already claimed and populated them — and nothing else. If that layer is the whole record, whoever is in it is in the answer.
What happened when one HVAC contractor's identity was made consistent
One measured outcome from outside this market, because it is the closest thing we have to a number on the other side of this problem: a Bay Area HVAC contractor's site we tracked went from roughly 206 to roughly 2,038 daily impressions — a 421% rebound — after a navigation fix, area pages, and consistent business-identity reinforcement across the sources AI systems cross-check. Sessions arriving from AI answers engaged at about 50%, versus 24.1% for non-AI traffic, a 2.08× rate. That is 4 AI sessions against 399 non-AI sessions in 30 days, so treat the engagement multiple as a small-volume signal, not a law. The impressions rebound is the more durable number, and none of it came from buying links or publishing a content blitz.
of independent HVAC and plumbing contractors have effectively zero AI citation share in their own metro.
5W HVAC & Plumbing AI Visibility Index 2026
How the AI builds that answer — in two sentences
The engine reads what other sites already say about a market — review aggregator pages, business profiles, service-area pages — and repeats the consensus back as a recommendation. It does not inspect workmanship, and it cannot name a company that nothing retrievable says anything about. SOCi's 2026 Local Visibility Index found ChatGPT names roughly 1.2% of local businesses in a given market, against about 11% for Gemini and 7.4% for Perplexity — so whether you get surfaced at all is a function of which engine the homeowner happened to open.
of consumers now use AI to find local services, up from about 6% a year earlier.
BrightLocal 2026 Consumer Review
If your HVAC company isn't in that answer, the call already happened
The Boulder City homeowner who asked this question got a list from ChatGPT, a different list from Google AI Mode, and made their calls off those two lists. There is no page-two visit, no click into your site, no quote request from a company the answer didn't surface — the research window closes inside the AI response itself. Google AI Mode even told them the screening criteria it applies: upfront flat-rate pricing, an active NV contractor's license and EPA Section 608 certification, a local footprint instead of a big-aggregator dispatch model, and a clear labor warranty. An engine can only state those things about a business whose profile, reviews, and licensing details actually carry them.
We can run this exact capture against your market — the same question, the same two engines, dated — show you which companies get named and which sources the engines are reading to name them, then move your business identity into those sources. That is the work, and it is measurable.