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HVAC city tests · San Jose, CA · one AI assistant's answers, September 2026

How AI assistants rate DG Heating and Air Conditioning in San Jose, CA

Not picked or listed as considered in the six market answers; IRBIS was picked first in all six.

Not mentioneddgheatingandair.com

Who it picked instead

The company the assistant picked most often in San Jose.

IRBIS Air, Plumbing & Electrical

Picked first in 6 of 6, picked in 6 of 6 · 4.9 stars on Google from 1598 reviews

“It repeatedly showed same-day service, online booking, upfront flat-rate pricing, and detailed credentials on its site.”

What would change it

Where the assistant found the answer on another site and not on this one.

  • IRBIS describes same-day furnace repair and an online Book Now path; DG's heating page says technicians often restore warmth the same day, while its contact page offers a general inquiry form.

    https://www.irbishvac.com/furnace
  • IRBIS states that it provides upfront flat-rate estimates with no parts markup; DG's about page mentions transparent pricing but does not explain when prices are shared or how estimates work.

    https://www.irbishvac.com/
  • IRBIS highlights Carrier credentials, NATE-certified technicians, and warranty details; DG lists its brand dealer relationships and general licensing but not comparable technician or warranty specifics on the pages read.

    https://www.irbishvac.com/

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