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HVAC city tests · California · one AI assistant's answers, September 2026

Who an AI assistant picked for HVAC in Danville, CA

Across six questions, Qualtech Heating & Cooling was picked first in five questions and Stewart Heating, Plumbing & Air Conditioning was picked first once.

Who came up in Danville

Every company the assistant named across the six questions, ordered by how often it was picked first. Tested on 2026-09-30.

CompanyPicked firstPicked
Qualtech Heating & Coolingqualtechhvac.com5 of 65 of 6
Stewart Heating, Plumbing & Air Conditioningstewartheatingandair.com1 of 65 of 6
Air Design Heating and Coolingairdesignheatingandcooling.com0 of 64 of 6
Bay Area Climate Controlbayareaclimatecontrol.com0 of 62 of 6

Question 1 of 6

“My furnace won't turn on. Who can fix it this week in Danville, California?”

Picked

  1. First
    Qualtech Heating & Cooling
    “It advertises same-day and 24/7 heating repair in Danville and handles furnaces.”
  2. #2
    Stewart Heating, Plumbing & Air Conditioning
    “It serves Danville and offers 24/7 emergency HVAC repair with upfront written estimates.”
  3. #3
    Air Design Heating and Cooling
    “It serves Danville, repairs all makes and models, and says emergency service is available.”

Considered and passed

  • Passed
    Bay Area Climate Control
    “Its Danville page focuses on furnace installation and says same-day availability, but does not give the same explicit same-day heating repair promise as Qualtech.”
  • Passed
    Fairview Heating & Air Conditioning
    “It advertises same-day Danville service, but I did not find a directly accessible furnace repair page to verify the specific service details.”

Question 2 of 6

“Who is the best heating and air company in Danville, California?”

Picked

  1. First
    Qualtech Heating & Cooling
    “Its site combines local ownership, a stated 2007 start, same-day and emergency service, and free installation estimates.”
  2. #2
    Stewart Heating, Plumbing & Air Conditioning
    “Its Danville repair page describes NATE-certified technicians, 24/7 emergency service, and written upfront estimates.”
  3. #3
    Air Design Heating and Cooling
    “It serves Danville, identifies as family-owned and operated, and offers free in-home installation estimates.”

Considered and passed

  • Passed
    Bay Area Climate Control
    “It has detailed Danville service pages and upfront pricing, but the site identifies it as owned by Galaxy Services, so I prioritized businesses presenting themselves as locally owned.”
  • Passed
    AC Repair Danville
    “It advertises furnace repair and emergency availability, but the pages I found gave less verifiable detail about ownership, technician qualifications, and service process.”

Question 3 of 6

“I need a new furnace or heat pump installed in Danville, California. Who should I get quotes from, and roughly what will it cost?”

Picked

  1. First
    Qualtech Heating & Cooling
    “It installs furnaces and heat pumps and offers free estimates on replacement equipment.”
  2. #2
    Air Design Heating and Cooling
    “It offers free in-home estimates on Trane heating products, including furnaces, and installs other heating equipment.”
  3. #3
    Bay Area Climate Control
    “It serves Danville, offers free estimates, and publishes a local furnace installation range of $4,500 to $10,000.”

Considered and passed

Question 4 of 6

“My AC isn't working, can someone come out today? I'm in Danville, California.”

Picked

  1. First
    Qualtech Heating & Cooling
    “It explicitly advertises same-day service and 24/7 AC repairs for its East Bay service area.”
  2. #2
    Stewart Heating, Plumbing & Air Conditioning
    “Its Danville HVAC repair page advertises round-the-clock emergency service.”
  3. #3
    Air Design Heating and Cooling
    “It serves Danville and says it provides emergency service for heating and cooling repairs.”

Considered and passed

  • Passed
    Bay Area Climate Control
    “Its Danville service pages describe same-day availability, but I did not verify a same-day AC repair claim on the page reviewed.”

Question 5 of 6

“I want my furnace serviced before winter in Danville, California. Who can I book online?”

Picked

  1. First
    Qualtech Heating & Cooling
    “It offers furnace maintenance, an online service request form, and lists an $89 furnace tune-up offer.”
  2. #2
    Stewart Heating, Plumbing & Air Conditioning
    “It offers furnace maintenance and an online service scheduling page.”

Considered and passed

  • Passed
    Air Design Heating and Cooling
    “It offers maintenance and tune-ups, but the pages reviewed provide a request-service form rather than a clearly described online booking flow.”

Question 6 of 6

“Which heating company in Danville, California has upfront pricing, so I know the cost before they come?”

Picked

  1. First
    Stewart Heating, Plumbing & Air Conditioning
    “It says it provides a detailed written estimate before beginning repair work.”
  2. #2
    Bay Area Climate Control
    “It advertises transparent upfront pricing and free itemized installation estimates for Danville homeowners.”

Considered and passed

  • Passed
    Qualtech Heating & Cooling
    “It advertises competitive pricing and select service offers, but I did not find a general repair price list or a written upfront repair estimate promise on its pages.”
  • Passed
    Air Design Heating and Cooling
    “It mentions competitive rates and free installation estimates, but does not explain when repair pricing is provided.”

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