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HVAC city tests · Washington · one AI assistant's answers, October 2026

Who an AI assistant picked for HVAC in Arlington, WA

Cozy Heating Inc. was picked 4 times and ranked first 2 times; Snohomish Furnace & Air was picked 5 times and ranked first 3 times.

Who came up in Arlington

Every company the assistant named across the six questions, ordered by how often it was picked first. Tested on 2026-10-01.

CompanyPicked firstPicked
Cozy Heating Inc.cozyheatinginc.com3 of 66 of 6
Snohomish Furnace & Airsnohomishfurnace.com3 of 66 of 6
CM Heatingcmheating.com0 of 65 of 6

Question 1 of 6

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

Picked

  1. First
    Snohomish Furnace & Air
    “Its Arlington page describes furnace repair, same-day service when possible, and a $69 diagnostic fee credited toward repairs.”
  2. #2
    Cozy Heating Inc.
    “It offers furnace repairs and advertises emergency services for Arlington homeowners.”
  3. #3
    CM Heating
    “Its Arlington page says its team is available 24 hours for emergencies and describes furnace repair.”

Considered and passed

  • Passed
    Frog HVAC
    “It says it repairs furnaces and serves Arlington, but its site gives less specific scheduling and diagnostic-price information.”
  • Passed
    Northern Comfort Heating & Cooling
    “Its site advertises emergency furnace service in Arlington, but does not state a same-day commitment or diagnostic price on the pages reviewed.”

Question 2 of 6

“Who is the best heating and air company in Arlington, Washington?”

Picked

  1. First
    Cozy Heating Inc.
    “It pairs decades of Arlington service and family ownership with a 4.9 rating and 512 reviews shown on its site.”
  2. #2
    Snohomish Furnace & Air
    “It identifies itself as a local, non-franchise company and publishes a diagnostic fee and review figures on its Arlington page.”
  3. #3
    CM Heating
    “It serves Arlington and advertises 24-hour emergency availability, financing, and a satisfaction guarantee.”

Considered and passed

  • Passed
    Frog HVAC
    “It is a family-owned local option with a long operating history, but its site provides less visible review and pricing detail.”
  • Passed
    Northern Comfort Heating & Cooling
    “It identifies as family-owned and Arlington-based, but the reviewed pages do not show comparable review totals or diagnostic pricing.”

Question 3 of 6

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

Picked

  1. First
    Cozy Heating Inc.
    “Its Arlington heating page describes furnace and heat-pump installation and links to financing options.”
  2. #2
    Snohomish Furnace & Air
    “It lists furnace and heat-pump installation, upfront pricing, and financing on its Arlington page.”
  3. #3
    CM Heating
    “Its Arlington page lists furnace and heat-pump installation and financing for qualifying applicants.”

Considered and passed

  • Passed
    Frog HVAC
    “It offers heat-pump installation, but the reviewed pages do not make furnace installation or project pricing as clear.”
  • Passed
    Northern Comfort Heating & Cooling
    “It serves Arlington and advertises new heat pumps, but I did not find a comparable published price range.”

Question 4 of 6

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

Picked

  1. First
    Snohomish Furnace & Air
    “Its Arlington page specifically lists same-day AC repair and says same-day service is available on weekdays.”
  2. #2
    CM Heating
    “It serves Arlington, repairs air conditioners, and advertises 24-hour emergency availability.”
  3. #3
    Cozy Heating Inc.
    “It offers AC repair and advertises emergency services, though its site does not promise same-day service on the reviewed page.”

Considered and passed

  • Passed
    Frog HVAC
    “It offers AC repair in Arlington, but I did not find an explicit same-day commitment or emergency-hours claim on its homepage.”
  • Passed
    Northern Comfort Heating & Cooling
    “It offers emergency AC repair in its service area, but the reviewed page did not confirm same-day availability.”

Question 5 of 6

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

Picked

  1. First
    Cozy Heating Inc.
    “Its site has a Schedule Service link and describes furnace maintenance and annual tune-ups.”
  2. #2
    Snohomish Furnace & Air
    “It lists annual furnace tune-ups and says customers can schedule online 24/7.”
  3. #3
    CM Heating
    “It lists furnace tune-ups and provides a Book Now link for service in Arlington.”

Considered and passed

  • Passed
    Frog HVAC
    “It has an appointment request link, but its homepage does not clearly describe annual furnace maintenance.”
  • Passed
    Northern Comfort Heating & Cooling
    “It offers furnace service, but I did not verify an online booking option on the pages reviewed.”

Question 6 of 6

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

Picked

  1. First
    Snohomish Furnace & Air
    “It publishes a $69 diagnostic fee credited toward repairs and says it provides a written estimate before work begins.”
  2. #2
    Cozy Heating Inc.
    “It states that it offers clear, honest pricing, though a specific diagnostic fee was not found on the reviewed pages.”

Considered and passed

  • Passed
    CM Heating
    “It offers service and installation estimates, but I did not find a published diagnostic price on its Arlington page.”
  • Passed
    Frog HVAC
    “It offers a free quote request for installations, but the reviewed pages do not publish repair diagnostic pricing.”

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