On 2026-09-18, Kodec ran the exact question a Spring Valley homeowner types into an AI assistant — “I need a good HVAC company in Spring Valley 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, and recorded both answers verbatim. This page is the capture: who each engine named, which sources it read in order to name them, and the precise point where the two answers stop agreeing.
The two engines overlap on exactly one company
ChatGPT’s answer ran to ten ranked companies and then a second tier of “other local recommendations.” Google AI Mode’s answer presented four companies as local listing cards. Cross-referencing the two named sets, the overlap is exactly one business: Nevada Residential Services Air Conditioning & Heating (ChatGPT’s #1, at a ServiceAgent Score of 8.7/10) and Nevada Residential Services (AI Mode’s card, 4.9 from 790 reviews) are the same company under two different labels.
Everything else is exclusive to one answer. ChatGPT-only: Fast Affordable Air (#2, also 8.7/10), Bumble Breeze (#3, 8.6/10), Pro Price Heating & Cooling (#4, 8.4/10) and Bob’s Repair (AC, Heating & Solar Experts) (#5, described with NV Lic #0085640 and NATE-certified technicians) — with further names including Ray’s Heating & Air, Lee’s Air (Plumbing & HVAC) and Sunrise Services, plus Sahara Air, Air Pro Master and Cool Tech Heating and Air in the resident-recommendation tier. Google AI Mode-only: Air Done Right (4.9, 359), Blue Collar HVAC (5.0, 121) and Super Service Cooling, Heating & Plumbing (4.9, 1.4K).
One more divergence worth logging: every card in AI Mode’s answer is addressed Las Vegas, not Spring Valley — 2475 S Jones Blvd, 3125 W Ali Baba Ln, 4620 S Arville St and 6625 S Valley View Blvd — even though the query named Spring Valley. ChatGPT’s answer, by contrast, was built on Spring Valley–suffixed pages for most of the ranked names.
Where ChatGPT got its list: nine sources, one scoring directory
ChatGPT attached nine citations to its answer. Four of its top five positions — 8.7, 8.7, 8.6 and 8.4 — trace back to a single page: a ServiceAgent directory listing for Las Vegas ZIP 89103, described in the answer as scoring based on “trust and recommendations, using a transparent methodology and no paid placement.” For the #1 company, the second source cited is that company’s own testimonials page at hvac.nrs.vegas, presented as evidence that “customer testimonials frequently mention fast, friendly, honest, and professional service.”
- serviceagent.ai — HVAC directory page for Las Vegas ZIP 89103 (the source behind ranks 1 through 4)
- hvac.nrs.vegas — the testimonials page of the company ranked #1
- reddit.com — an r/vegaslocals thread on Vegas AC companies, cited twice
- bobsrepair.com, thecoolingco.com, raysheatingandairco.com, leesair.com, sunrisehvac.com — the ranked companies’ own Spring Valley service-area pages
- houzz.com — a national home-remodel marketplace professional profile
None of the nine is out-of-market in the geographic sense: every URL is keyed to Las Vegas or Spring Valley. What is missing is independent verification. Five of the nine sources are pages the ranked companies published about themselves, one is a scoring directory, one is a Reddit thread, and the Houzz source title is a heating-and-cooling sales-and-repair marketplace listing — a national remodel profile page, not a local HVAC review.
Where Google AI Mode got its list: three citations, all on one platform
AI Mode cited three sources, and all three are Yelp URLs. Two of them carry different titles but resolve to the same page — “Best Air Conditioning Services in Spring Valley, NV - Yelp” and “What to Look for in a Good HVAC Tech” both point at www.yelp.com/questions/loc/spring-valley-nv/air-conditioning-services. The third, “Yelp’s Spring Valley HVAC Directory,” is a Yelp search URL (m.yelp.com/search?find_desc=Hvac+Companies&find_loc=Spring+Valley%2C+NV) rather than a curated roster of local contractors.
The rest of the answer’s structure comes from listing fields attached to those cards: rating counts of 4.9 (359), 5.0 (121), 4.9 (790) and 4.9 (1.4K), open/closed status, and directions links. AI Mode also tells homeowners to cross-reference a contractor’s license number with the Nevada State Contractors Board — and no NSCB page appears anywhere in the three sources it cited to support that.
There is no Spring Valley journalism in the layer the AI reads
Across both engines, not one local publication appears. ChatGPT’s nine sources are a third-party scoring directory, one company’s testimonials page, a Las Vegas subreddit thread, a national remodel marketplace profile, and five company-owned service-area pages. AI Mode’s three sources are three Yelp URLs, two of which are the same page. A homeowner asking who to call in Spring Valley gets an answer assembled entirely from directories, forums, marketplaces and contractors’ own marketing pages — no reporting, no local news outlet, no state licensing body, no trade-association page. That is the layer. If your business isn’t represented inside those specific places, the engine has nothing about you to repeat.
How the AI builds that box
Both engines did the same thing: retrieve pages, read what those pages said about Spring Valley HVAC, and repeat the parts that matched — ChatGPT’s answer says so in its opening line (“based on recent local reviews and verified directories”), and AI Mode’s says so by leaning on one platform’s pages. Neither engine inspected a truck, a permit or a warranty. It repeats what the source layer already says.
What this means if you run an HVAC company in Spring Valley
The research window for a Spring Valley AC repair now closes inside the answer. A homeowner reads one box, sees four or five names, and calls one of them — the comparison you would normally win on responsiveness, pricing or a neighbor’s referral never happens out loud. Your absence from that box isn’t a judgment about your work; it’s the predictable result of not appearing in the directory pages, forum threads and marketplace listings the engines happened to read on 2026-09-18.
of local businesses are named by ChatGPT in local-intent answers (Gemini ~11%, Perplexity ~7.4%)
SOCi 2026 Local Visibility Index
of independent HVAC and plumbing contractors hold effectively zero AI citation share in their own metro
5W HVAC & Plumbing AI Visibility Index 2026
of consumers now use AI to find local services, up from ~6% a year earlier
BrightLocal 2026 Consumer Review
One measured outcome from a market we fixed
The work that changes this is not a content blitz. For a Bay Area HVAC contractor’s site we tracked, the change looked like a navigation fix, service-area pages, and consistent business-identity reinforcement across the sources an AI cross-checks — not link-buying. Daily impressions rebounded +421%, from roughly 206 to roughly 2,038. AI-referred sessions engaged at 2.08× the rate of non-AI sessions (about 50% versus 24.1%). Honest caveat: that’s 4 AI sessions against 399 non-AI sessions over 30 days, so treat the multiple as directional on small volume, not settled.
We ran this capture for Spring Valley on 2026-09-18. We can run the same capture for your market, show you the exact sources the engines are reading, and work on getting your business into the list the AI repeats.