picked by agentsPicked by Agents index · AC and heating repair in Mesa, AZ
We asked Grok this exact question in September 2026. Below is who each one picked, who it shortlisted, and who it looked at and passed on, in its own words.
United States · xAI Grok Bot, a cloud agent with its own browser · asked 2026-09-28 15:56 UTC
“John's has served Maricopa County since 1970 from a Mesa office (211 E 10th Dr), is a Trane Comfort Specialist, lists its HVAC license numbers (#084417 and #170672), gives written upfront estimates after a load calculation, stocks common systems for same-day or next-day installs, and offers financing; hvacservice.io shows it at 4.9 stars from 3,274 Google reviews.”
“Western States is a family-owned Mesa company founded in 2008 with ROC 349214, a Carrier Factory Authorized Dealer and President's Award winner (per Carrier's dealer page), rated 4.9 from 1,551 reviews on Best Pick Reports, and it lists a 10-year manufacturer parts warranty and lifetime workmanship on installs, plus price matching, financing and a $1,000 buyback on an old unit when you buy a new system.”
“Semper Fi is a veteran-run Mesa company (HVAC ROC #309388) with a very large review base (4.7 stars from 8,947 reviews on Birdeye), BBB A+ accreditation since 2017, and financing through GoodLeap (18 months no interest, or 15-year fixed), so it is worth a quote to compare, but read the negative install reviews on Birdeye first.”
“It is a strong alternate (independently owned in Mesa, ROC #275914, Trane partner, itemized written estimates and a detailed Arizona cost guide), but I could not confirm its review count or rating because the review sites were blocked and its own reviews page gives no totals.”
“It shows ROC #351313, more than 20 years of local experience, financing and a clear install process, but the page names no brand dealer status, gives no specific warranty terms and shows no review totals.”
“Trane lists it as a Trane Comfort Specialist with NATE technicians and Wells Fargo financing, but its own website blocked my access, so I could not check its ROC number, warranties or review volume.”
“It has License #277832, factory-trained technicians for Trane, Lennox and Mitsubishi, and says its techs are not paid on commission, but it is based in Chandler rather than Mesa and I found no review totals or warranty terms.”
“It is an online direct-pricing company that uses vetted local contractors rather than a local Mesa installer with its own crews, so I used it only as a cost source.”
“It is a Phoenix-focused Trane Authorized Dealer and I opened only its cost guide, so I have no Mesa-specific license, review or warranty details.”
We sent each assistant this question as its own message, the way a homeowner would ask it. It searched the web and read business sites on its own. Each answer shows which assistant and version answered and when. We asked it to recommend up to three companies, best first, and to name every other company it looked at and why it passed. Reasons are quoted as given. Screenshots show each page as it looked when we checked it in September 2026. We ask again every month and keep every answer.
Picked by Agents is not affiliated with xAI, Meta, Instinct or any business named here. Recommended means the assistant recommended it. Nothing was booked.
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