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We Love Doing Our Best for Customers. Read What Customers Have to Say about Our Services and Skills

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We love getting feedback from our clients. If you have something to say about the service you received, let us know!

When you’re in the market for a heating or cooling system, we want you to choose us: Vanguard Heating & Air Conditioning, Inc. Take a moment to check out our customer testimonials. Our dedication to customer service is the main reason we’ve been in business for over thirty years. At Vanguard Heating and Air Conditioning, we make the air conditioner feel frosty, not the customer.

  • “Reliable and dependable” – MJ 
  • “Overall, we are very pleased. I feel that that this installation presented some challenges, and your men were able to meet them. Initially, I thought your price was a lot higher. But when the men were here, I saw how many hours they spent modifying our old set up to meet the new system. I now realize that another contractor may have had a lower estimate, but would surely have had many extras.” – Mrs. Willy
  • “We have known Gary for many years. We do trust him; we do like his recommendations and work that has been done. Staff has been knowledgeable, courteous, and helpful. We have and will continue to recommend Vanguard.” – Mr. & Mrs. Dakis
  • “We have been a customer for many years and always very satisfied! Thank you.” – Mrs. Shalzi
  • “I can always count on Vanguard to do the job right!” – Mr. Olson
  • “We have been a customer for a long time and like the good service we’ve always received.” – Mr. Pozniak
  • “Our A/C went out on a Thursday. The first company we called couldn’t come until Monday. I’m glad we called you. It was fixed (and at a lower cost) on Friday.” – Mr. Kim
  • “Just wanted to thank you for sending a refund for the part warranty. It was a pleasant surprise, and we appreciate your honesty and great service. We’ll continue to call you when needed, as well as refer you.” – Mr. & Mrs. Harrison
  • “Your techs always do an excellent job: check everything on the appliance, explain any problems, fix any problems, answer all questions in a courteous manner, and take care of any follow through (getting a part, etc.).” – Mr. Foley
  • “Gary, thank you! Good to see you again. We appreciate you all taking such good care of our home!” – Mrs. Larson
  • “Very, very satisfied with the work and also the technician.” – Mr. Lignowski
  • “I am a preferred value customer for at least 18 years.” – Mr. Salvadore
  • “Very satisfied as always. Thank you Vanguard. Technician did mention a couple things to watch for due to the age of furnace. Very courteous and helpful.” – Mr. & Mrs. Malchiodi
  • “Always great service. I give you five stars.” – Mrs. O’Donnell
  • “Chris changed out the tubing for the condensate pump and went to extra effort to get the correct tubing so it could be done that day. I appreciated the extra effort!” – Mrs. Wachtel
  • “We have dealt with you a long time and will continue to do so.” – Mr. & Mrs. Ladendorf
  • “We love your company. Wouldn’t use anyone else.” – Mrs. MacDonald
  • “Keep up the good work.” – Mr. Hartmann
  • “Thank you again. Excellent work!” – Mrs. Konrad
  • “Tech called when he was on his way and was punctual. Was professional and clean in appearance. Cared about keeping worksite (my home) clean. I think highly of your company and not only would recommend you to family and friends but am using you for a new furnace.” – Mr. Dibbern
  • “Have been with Vanguard since 1979 or 1980!” – Mrs. Constant
  • “We and other family members have been using them for years. Good knowledge of old boilers and old homes. In fact, with our new house, I convinced the GC to contract them to install all new systems.” – Anonymous

Call (847) 934-3900 for award-winning customer service!

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Address & Phone

Office Address:
453 S Vermont Street
Palatine, IL 60067


Hours of operation

MONDAY 8:00AM - 5:00PM
TUESDAY 8:00AM - 5:00PM
THRUSDAY 8:00AM - 5:00PM
FRIDAY 8:00AM - 5:00PM
SATURDAY By Appointment

453 S Vermont Street 
Palatine, IL 60067