Boost Comfort with Expert HVAC Solutions
Honored for Outstanding Work
  • MyIntown Readers Choice Winner
  • Cobb Chamber of Commerce Business of the Year
  • Dekalb County Helping Hands Award
  • Soldier's Angels Donor of the Year
  • Best of Douglas County

    Serving Union City and beyond Air Conditioning Service Union City

    If you want to make sure your air conditioner works as it should, all year long, you need to hire a professional.

    Assured Comfort Heating, Air & Plumbing offers experienced AC services that address every aspect of your system’s needs, from preventative maintenance to optimizing performance. We can also make sure your system is working efficiently, protecting you from unnecessarily high energy bills.

    When you call Assured Comfort Heating, Air & Plumbing, you can trust us to deliver the quality workmanship we’re known for. Our technicians are not only qualified to handle the job, but they perform the work with pride and integrity. AC service may be the only thing standing between you and complete comfort, no matter how high the temperatures climb this summer. Make sure you choose Assured Comfort Heating, Air & Plumbing for a job well done.

    Protect your comfort and prevent unnecessary breakdowns with AC service by Assured Comfort Heating, Air & Plumbing. Call (770) 464-5745 to schedule an appointment!

    Union City AC Service
    Call for More Information Today!
    770-464-5745
    From Our Customers
    • J
      "Cory was great!"
      Cory was great! He checked my HVAC system and was very thorough.
      Jean Carmony
    • R
      "Michael Simmons Jr did an excellent job"
      He provided great service. He is very thorough and polite, very professional.
      Renonda Dorgan
    • E
      "The techs were very knowledgeable"
      The techs were very knowledgeable in explaining what my HVAC system needed.
      Evelyn Price
    • J
      "Got My Toilet Back in Working Condition"
      Bruce was able to adequately locate the issue and get the toilet back in working condition.
      John Green
    • M
      "Very Thorough Diagnostic Review"
      Michael Simmons was very thorough with his diagnostic review.
      Marcia Davis
    • C
      "Very Thorough and Professional"
      Michael Simmons Jr did a great job maintaining my system.
      Chris Davidson
    • J
      "A joy to work with"
      Michael Simmons Jr. was on time and a joy to work with!
      Judy MacManus
    • D
      "Michael Simmons Jr: Great Job"
      He provided great customer service.
      David Diamond
    • K
      "Super Friendly and Respectful"
      Michael Simmons Jr was super friendly and respectful.
      Kellyn Wolber
    • J
      "EJ and Mr. Luther were amazing"
      They explained everything that was wrong with the system and everything that needed to be fixed.
      Josuha Simpson
    • R
      "Michael Simmons Jr did a great job"
      He fixed my heat and explained everything he was doing.
      Raye Lyle
    • R
      "Very Experienced and Knowledgeable Technician"
      He gave insight for future work and explained why the system is functioning.
      R Fowler
    • S
      "Did an excellent job today"
      Michael Simmons Jr and Ryan did an excellent job today in performing maintenance on our HVAC system.
      Stephen Thomas
    • A
      "Did a great job today"
      On time, fast, and friendly!
      Alan Jordan
    • C
      "Service technician was professional"
      Service technician was professional and friendly.
      Charles Saul
    • J
      "Very professional and detailed"
      They were very professional and detailed.
      Jeanette PARHAM CARROLL
    • I
      "Kyle was great"
      Kyle was great. He did a great job.
      Ida Ware
    • m
      "Did a Great Job Checking Our Systems"
      Michael Simmons did a great job checking our systems.
      melissa johnson
    • D
      "Always a Good Experience"
      EJ and Bradley came out today to inspect our AC and furnace.
      David Rhoades
    • S
      "Michael Simmons Jr and Luther"
      Michael Simmons Jr and Luther did a great job.
      Stephanie Simmons
    • d
      "Great Job Maintaining My HVAC System"
      Michael Simmons and Ben Scott did a great job maintaining my HVAC system.
      dan hennessy
    • C
      "I would recommend them to anyone"
      He answered every question and detailed everything very well.
      Catrina Mizell
    • D
      "EJ was here right after 2"
      EJ was here right after 2 and moved efficiently throughout the process.
      Denise Brooks
    • R
      "Had the Air Working in No Time"
      They were extremely knowledgeable and answered all the questions I had.
      Racheous Point of view
    • A
      "Did a great job"
      Michael Simmons Jr., Luther, and Roger Coleman
      Aaron Lynch
    • M
      "E.J. was great"
      E.J. was great and explained everything perfectly.
      Matt Peters
    • M
      "Very Pleasant and Professional"
      E.J. was very pleasant and professional.
      Michael Cooper
    • P
      "Brandon Was a Pleasure"
      Very friendly and humble person.
      Pamela Gorges
    • M
      "Great service"
      Michael Simmons Jr did a great job today.
      Mike Sherman
    • T
      "Very respectful and very knowledgeable"
      Michael Simmons Jr was on time, very respectful, and very knowledgeable about the issues with our A/C unit.
      Thomas Ohanu
    Cory was great!
    5-6-26 Cory was great! He checked my HVAC system and was very thorough.
    Jean Carmony
    Michael Simmons Jr did an excellent job
    Michael Simmons Jr did an excellent job. He provided great service. He is very thorough and polite, very professional.
    Renonda Dorgan
    The techs were very knowledgeable
    The techs were very knowledgeable in explaining what my HVAC system needed. I’m discussing with my husband at this time.
    Evelyn Price
    Got My Toilet Back in Working Condition
    After arriving back home from a hospital visit, there was a plumbing issue with my toilet. Bruce was able to adequately locate the issue and get the toilet back in working condition. This is the only company out of five that I called on a Sunday that sent someone out.
    John Green
    Very Thorough Diagnostic Review
    Michael Simmons was very thorough with his diagnostic review. Highly recommend.
    Marcia Davis
    Very Thorough and Professional
    Michael Simmons Jr did a great job maintaining my system. Michael is very thorough and professional.
    Chris Davidson
    A joy to work with
    Michael Simmons Jr. was on time and a joy to work with! Always a pleasure working with Assured Comfort.
    Judy MacManus
    Michael Simmons Jr: Great Job
    Michael Simmons Jr, great job. He provided great customer service. I am very pleased with his work. Thank you, Michael Simmons.
    David Diamond
    Super Friendly and Respectful
    Michael Simmons Jr was super friendly and respectful, hope to see him again on our next service!
    Kellyn Wolber
    EJ and Mr. Luther were amazing
    EJ and Mr. Luther were amazing. They explained everything that was wrong with the system and everything that needed to be fixed. They also showed me clear pictures and were also giving their professional opinion on what they would do, which also helped me figure out my next steps.
    Josuha Simpson
    Michael Simmons Jr did a great job
    Michael Simmons Jr did a great job. He fixed my heat and explained everything he was doing. He is very polite. Thank you, Michael, great customer service.
    Raye Lyle
    Very Experienced and Knowledgeable Technician
    Roger Coleman was a very experienced and knowledgeable technician. He gave insight for future work and explained why the system is functioning.
    R Fowler
    Did an excellent job today
    Michael Simmons Jr and Ryan did an excellent job today in performing maintenance on our HVAC system and walking me through the options for keeping it in good shape moving forward.
    Stephen Thomas
    Did a great job today
    Michael Simmons Jr. and Tim Duncan did a great job today. On time, fast, and friendly!
    Alan Jordan
    Service technician was professional
    Service technician was professional and friendly. Took time to explain warranty, service agreement, and installation costs, etc. for new water heater.
    Charles Saul
    Very professional and detailed
    Michael Simmons Jr. and Luther were here today for a service check-up. They were very professional and detailed.
    Jeanette PARHAM CARROLL
    Kyle was great
    Kyle was great. He did a great job; very satisfied.
    Ida Ware
    Did a Great Job Checking Our Systems
    Michael Simmons did a great job checking our systems, identifying issues, and taking care of them.
    melissa johnson
    Always a Good Experience
    We have used Assured Comfort for years and have always had a good experience. EJ and Bradley came out today to inspect our AC and furnace. They provided a clear explanation of recommended services and were friendly and professional.
    David Rhoades
    Michael Simmons Jr and Luther
    Michael Simmons Jr and Luther did a great job as always!
    Stephanie Simmons
    Great Job Maintaining My HVAC System
    Michael Simmons and Ben Scott did a great job maintaining my HVAC system. Thanks for great customer service.
    dan hennessy
    I would recommend them to anyone
    He answered every question about all my parts and replacing and detailed everything very well. I would recommend them to anyone.
    Catrina Mizell
    EJ was here right after 2
    I was scheduled for maintenance between 2-5. EJ was here right after 2, explained what he was doing, and moved efficiently throughout the process.
    Denise Brooks
    Had the Air Working in No Time
    Kyle and Lucas showed up in great timing. They were quick to handle the issues and had the air working in no time. They were extremely knowledgeable and answered all the questions I had. Even offered reasonable payment options if necessary.
    Racheous Point of view
    Did a great job
    Michael Simmons Jr., Luther, and Roger Coleman did a great job.
    Aaron Lynch
    E.J. was great
    I’m a tenant and E.J. was great. Explained everything perfectly.
    Matt Peters
    Very Pleasant and Professional
    E.J. was very pleasant and professional. Did a great job explaining all of the things going on within our home.
    Michael Cooper
    Brandon Was a Pleasure
    Brandon was a pleasure! Very friendly and humble person. If you're a customer and Brandon is your technician, you'll be very pleased!
    Pamela Gorges
    Great service
    Michael Simmons Jr did a great job today. He fixed my AC. Great service.
    Mike Sherman
    Very respectful and very knowledgeable
    Michael Simmons Jr was on time, and very respectful and very knowledgeable about the issues we were having with our A/C unit. I highly recommend.
    Thomas Ohanu
    Why Trust Our Services?
    • Trusted Since 2002

      Family-owned, local HVAC experts in Atlanta.

    • Community First Approach

      Actively engaged in local initiatives and charities.

    • Comprehensive HVAC Services

      Residential and commercial solutions tailored to you.

    • Budget-Friendly Pricing

      Quality services at prices that fit your budget.

    Current Promotions
    • Assured Comfort Heating, Air & Plumbing Assured Comfort Heating, Air & Plumbing
      Your Comfort Can't Wait But Your Payment Can:

      Pay NOTHING for 12 months When you buy a new HVAC, Water Heater, Generator or any repair or system over $500.

      Valid Mar 31, 2026 - Jun 30, 2026 Download
    • Assured Comfort Heating, Air & Plumbing Assured Comfort Heating, Air & Plumbing
      Seniors Save 10% Offer valid for customers 55 years of age or older and/or AARP members and/or military veterans and/or first responders. Proof of age or occupation may be required. Coupon valid for repairs and services only. Expires as indicated and cannot be combined with any other offers or comfort club member discounts. Must mention coupon when scheduling and present at time of service. Valid Apr 2, 2025 - Jun 30, 2026 Download
    • Assured Comfort Heating, Air & Plumbing Assured Comfort Heating, Air & Plumbing
      FREE A/C, Heating, Plumbing or Electrical Repair Service Call With Paid Repair Cannot be combined with any other offers or comfort club member discounts. Must mention coupon when scheduling and present at time of service; repairs not included. Additional terms and conditions may apply, call for details. Valid Apr 2, 2025 - Jun 30, 2026 Download
    Plumbing Services In Your Area
    • Union City
    • Fulton County
    • Atlanta
    • East Point
    • College Park
    • Smyrna
    • Douglasville
    • Peachtree City
    • Forest Park
    • Riverdale
    • Morrow
    • Fairburn
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