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

Who an AI assistant picked for HVAC in Tewksbury, MA

Frank's Heating Service was picked in all 6 questions and ranked first in 5; CoolAir Company was ranked first once and appeared among the alternatives in several answers.

Who came up in Tewksbury

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

CompanyPicked firstPicked
Frank's Heating Servicefranksheating.com4 of 66 of 6
CoolAir Companycoolaircompany.com2 of 65 of 6
CSB Plumbing Companycsbplumbing.com0 of 61 of 6

Question 1 of 6

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

Picked

  1. First
    Frank's Heating Service
    “It serves Tewksbury for furnace repairs and says it can usually schedule appointments with a 24-hour turnaround, with after-hours emergency service advertised.”
  2. #2
    CoolAir Company
    “It offers local furnace service, and its site displays recent customer reviews describing same-day and rapid service.”

Considered and passed

  • Passed
    CSB Plumbing Company
    “Its Tewksbury heating page offers furnace repair, but I found no specific appointment turnaround claim.”
  • Passed
    Mike Giasullo Oil Burner Service
    “It specializes in oil heating and says it responds promptly, but does not give a specific Tewksbury appointment window.”

Question 2 of 6

“Who is the best heating and air company in Tewksbury, Massachusetts?”

Picked

  1. First
    CoolAir Company
    “Its owner describes a small family-run company serving the area since 1977, and its site displays a 4.8 Google rating with 40-plus reviews.”
  2. #2
    Frank's Heating Service
    “It has served the area since 1981 and describes upfront project-cost communication and satisfaction and performance guarantees.”

Considered and passed

  • Passed
    D & C Mechanical
    “It offers residential heating and cooling locally, but the available pages provide less detail about specific homeowner guarantees and review volume.”
  • Passed
    Mike Giasullo Oil Burner Service
    “Its work is focused on oil burners and oil heating rather than the broader heating and air service requested.”

Question 3 of 6

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

Picked

  1. First
    Frank's Heating Service
    “It installs furnaces locally and publishes a broad replacement-cost range while explaining the main factors that affect quotes.”
  2. #2
    CoolAir Company
    “It offers furnace and heat-pump installations in Tewksbury and invites homeowners to request a free estimate.”

Considered and passed

  • Passed
    D & C Mechanical
    “It offers heating installation and free estimates but the pages I read did not provide pricing ranges.”
  • Passed
    Mike Giasullo Oil Burner Service
    “It installs oil heating equipment, but the evidence I found did not establish heat-pump installation or broad furnace options.”

Question 4 of 6

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

Picked

  1. First
    CoolAir Company
    “Its site offers AC repair in Tewksbury and shows recent customer reviews describing same-day or rapid service.”
  2. #2
    Frank's Heating Service
    “It repairs AC in Tewksbury and advertises emergency service, though its standard appointment claim is usually within 24 hours.”

Considered and passed

  • Passed
    Excel Mechanical
    “It serves Tewksbury and advertises emergency HVAC repair, but I found less specific information about same-day AC availability.”
  • Passed
    CSB Plumbing Company
    “It offers heating and cooling services in the area, but I did not find a specific same-day AC claim.”

Question 5 of 6

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

Picked

  1. First
    Frank's Heating Service
    “It offers furnace tune-ups and an online request form where customers can select availability for a call-back confirmation.”
  2. #2
    CoolAir Company
    “It accepts online service requests and offers HVAC maintenance, though the form does not show a live appointment calendar.”

Considered and passed

  • Passed
    CSB Plumbing Company
    “It promotes online scheduling, but I found less explicit information on a dedicated seasonal furnace-tune-up booking page.”
  • Passed
    Mike Giasullo Oil Burner Service
    “It offers maintenance and online booking, but focuses on oil burners rather than all furnace types.”

Question 6 of 6

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

Picked

  1. First
    Frank's Heating Service
    “Its about page explicitly says customers are told the cost up front, and its furnace-repair page includes a typical repair-cost range.”
  2. #2
    CSB Plumbing Company
    “It says it offers straightforward pricing for heating services in Tewksbury.”

Considered and passed

  • Passed
    CoolAir Company
    “It offers free estimates but the pages I read did not publish a diagnostic fee or an explicit upfront-pricing promise.”
  • Passed
    D & C Mechanical
    “It offers free estimates and says it provides clear estimates, but I found no defined pricing before a service visit.”

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