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

Who an AI assistant picked for HVAC in Dundalk, MD

Across 6 questions, Reliability Home Services was picked 5 times and ranked first 2 times; Comfort Systems was picked 6 times and ranked first 4 times.

Who came up in Dundalk

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

CompanyPicked firstPicked
Comfort Systems, Inc.comfortsystemsbaltimore.com4 of 66 of 6
Reliability Home Servicesreliabilityhome.com2 of 65 of 6

Question 1 of 6

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

Picked

  1. First
    Reliability Home Services
    “Its Dundalk furnace page describes no-heat repairs and claims most Dundalk calls receive same-day or next-day service.”
  2. #2
    Comfort Systems, Inc.
    “It offers Dundalk heating emergency repair, online booking, and says to call for urgent and same-day needs.”

Considered and passed

  • Passed
    Maryland Oil Company
    “It lists furnace repair and a 24-hour emergency answering service, but its service page does not state same-day furnace availability.”

Question 2 of 6

“Who is the best heating and air company in Dundalk, Maryland?”

Picked

  1. First
    Reliability Home Services
    “Its local service pages combine furnace-specific support, emergency options and same-day or next-day service claims with a substantial Google review profile.”
  2. #2
    Comfort Systems, Inc.
    “It offers residential heating and cooling, upfront pricing, emergency service and online booking, and describes itself as family-owned since 1995.”

Considered and passed

  • Passed
    Maryland Oil Company
    “It is a local family-owned option offering HVAC and heating oil services, but the evidence reviewed gives less detail about its HVAC credentials and customer review profile.”

Question 3 of 6

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

Picked

  1. First
    Comfort Systems, Inc.
    “It installs heating systems and publishes Maryland-specific guidance explaining the factors behind furnace and heat-pump costs.”
  2. #2
    Reliability Home Services
    “It offers furnace and heat-pump installation in Dundalk, free estimates and financing options.”

Considered and passed

  • Passed
    Maryland Oil Company
    “It installs furnaces, boilers and heat pumps, but the reviewed pages do not offer a cost range or detailed equipment-selection guidance.”

Question 4 of 6

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

Picked

  1. First
    Comfort Systems, Inc.
    “Its Dundalk AC emergency page advertises urgent repair and directs customers to book online or call for urgent and same-day needs.”
  2. #2
    Reliability Home Services
    “It serves Dundalk with AC repair and advertises emergency service through its home and service pages.”

Considered and passed

  • Passed
    Maryland Oil Company
    “It offers air-conditioning repairs and a 24-hour emergency answering service, but does not claim an appointment is available today.”

Question 5 of 6

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

Picked

  1. First
    Comfort Systems, Inc.
    “Its maintenance plan includes spring and fall checkups, and its website links to online booking.”
  2. #2
    Reliability Home Services
    “It offers preventive maintenance each heating season and provides an online scheduling option.”

Considered and passed

  • Passed
    Maryland Oil Company
    “It offers preventive heating maintenance, but the pages reviewed direct customers to call rather than book online.”

Question 6 of 6

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

Picked

  1. First
    Comfort Systems, Inc.
    “It explicitly advertises upfront pricing and clear written options after assessing the home.”

Considered and passed

  • Passed
    Maryland Oil Company
    “It mentions competitive pricing, but the reviewed pages do not say customers receive a price before work begins.”
  • Passed
    Reliability Home Services
    “It describes its rates as affordable and offers free estimates, but the reviewed pages do not explicitly describe upfront pricing or written quotes.”

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