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

Who an AI assistant picked for HVAC in Collinsville, IL

Across 6 questions, Ernst Heating & Cooling was picked 5 times and ranked first 4 times; Embrich Plumbing, Heating & Air Conditioning was picked in all 6, first once.

Who came up in Collinsville

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

CompanyPicked firstPicked
Ernst Heating & Coolingernstheating.com5 of 66 of 6
Embrich Plumbing, Heating & Air Conditioningembrichplumbing.com1 of 66 of 6
Garwood's Heating & Coolinggarwoodsheating.com0 of 65 of 6

Question 1 of 6

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

Picked

  1. First
    Ernst Heating & Cooling
    “Its Collinsville furnace repair page explicitly covers a furnace that will not start and offers 24/7 emergency repair and online appointments.”
  2. #2
    Embrich Plumbing, Heating & Air Conditioning
    “It serves Collinsville, advertises 24/7 heating emergencies, and says furnace repairs are usually completed on the same visit.”
  3. #3
    Garwood's Heating & Cooling
    “It lists furnace repair for Collinsville and says its certified technicians service all makes and models.”

Considered and passed

  • Passed
    BELOMAN
    “It offers furnace service in Collinsville but the page gives no specific emergency or same-week availability claim.”
  • Passed
    Polar Plumbing, Heating & Air Conditioning
    “It offers furnace repair in Collinsville, but the pages reviewed did not establish an appointment window for this week.”

Question 2 of 6

“Who is the best heating and air company in Collinsville?”

Picked

  1. First
    Ernst Heating & Cooling
    “Its site combines Collinsville HVAC service, a three-generation family business history, and a displayed 4.9 rating with more than 1,300 reviews.”
  2. #2
    Embrich Plumbing, Heating & Air Conditioning
    “It serves Collinsville and advertises upfront pricing and 24/7 heating emergency service.”
  3. #3
    Garwood's Heating & Cooling
    “It lists broad furnace, AC, and heat pump work in Collinsville and offers financing with approved credit.”

Considered and passed

  • Passed
    BELOMAN
    “It has a Collinsville HVAC service page and describes its heating and cooling work, but the evidence reviewed offered less detail about current customer feedback than Ernst.”
  • Passed
    Lair Mechanical
    “It serves Collinsville but its location page gives fewer specifics about residential heating service than the selected companies.”

Question 3 of 6

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

Picked

  1. First
    Ernst Heating & Cooling
    “Its furnace installation page explains equipment options, financing, and that technicians discuss the price and options before installation.”
  2. #2
    Embrich Plumbing, Heating & Air Conditioning
    “It lists furnace and heat pump installation in its Collinsville heating services and advertises upfront pricing.”
  3. #3
    Garwood's Heating & Cooling
    “It lists new furnace and heat pump sales and replacement work for Collinsville.”

Considered and passed

  • Passed
    BELOMAN
    “It offers furnace and heat pump installation locally, but the reviewed page did not publish a price or range.”
  • Passed
    Polar Plumbing, Heating & Air Conditioning
    “It lists furnace installation, but I did not find a local installed price or range in the reviewed result.”

Question 4 of 6

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

Picked

  1. First
    Ernst Heating & Cooling
    “It serves Collinsville for cooling and promotes service in just hours.”
  2. #2
    Embrich Plumbing, Heating & Air Conditioning
    “It serves Collinsville and advertises 24/7 emergency service, though the page does not promise an arrival today.”
  3. #3
    Garwood's Heating & Cooling
    “It lists AC repair in Collinsville, but publishes weekday operating hours.”

Considered and passed

  • Passed
    BELOMAN
    “It offers Collinsville AC repair but did not specify same-day availability on the page reviewed.”
  • Passed
    Lair Mechanical
    “It serves Collinsville for AC repair, but its location page did not establish availability today.”

Question 5 of 6

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

Picked

  1. First
    Ernst Heating & Cooling
    “It offers furnace tune-ups and an online Schedule Service option.”
  2. #2
    Embrich Plumbing, Heating & Air Conditioning
    “It lists furnace maintenance and provides a Book Now link on its heating services page.”
  3. #3
    Garwood's Heating & Cooling
    “It lists heating maintenance contracts for Collinsville, though its page asks customers to call.”

Considered and passed

  • Passed
    BELOMAN
    “It offers furnace maintenance locally, but an online booking flow was not clear on the page reviewed.”
  • Passed
    Polar Plumbing, Heating & Air Conditioning
    “It offers furnace maintenance but the page centers on calling to schedule.”

Question 6 of 6

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

Picked

  1. First
    Embrich Plumbing, Heating & Air Conditioning
    “Its heating services page explicitly advertises upfront pricing.”
  2. #2
    Ernst Heating & Cooling
    “Its installation page says the team explains how much the system costs before it is ordered.”

Considered and passed

  • Passed
    BELOMAN
    “It says it provides an estimate after inspection, but the page does not explicitly claim upfront or pre-visit pricing.”
  • Passed
    Garwood's Heating & Cooling
    “The Collinsville page mentions financing but does not state an upfront pricing policy.”

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