American Society of Heating & Cooling Specialists LLC logo
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American Society of Heating & Cooling Specialists LLC

Appliance (Major Electric Appliance) - Install or Replace, Thermostat - Install or Replace, Thermostat Service,

About us

HVAC Technicians At Your Service Since 1991; As a fully licensed, bonded and insured air conditioning, heating and ventilation company, American Society of Heating and Cooling Specialists provides residential and commercial maintenance, installation and repair services on all major brands of heating, air conditioning and restaurant equipment to customers throughout St. Louis, St. Charles, and the surrounding areas.

Business highlights

Emergency services offered
31 years of experience

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.314 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
71%
4
14%
3
0%
2
7%
1
7%

Filter reviews by service

Showing 1-14 of 14 reviews
Terry H.
Jul 2026
5.0
Central A/C - Service or Repair
Install a heat strip to AC handler in attic. He provides service with a smile.
Response from American Society of Heating & Cooling Specialists LLC
"Working with customer that have great happiness around them is always a pleasure. Im great full to know you. Thank you"

J S.
Jul 2026
5.0
Refrigeration System - Repair or Service
$650
Seems I was spending a ridiculous amount of money on electricity because my central unit was not operating correctly. I now have flowing cold air.
Response from American Society of Heating & Cooling Specialists LLC
"Im very happy that we resolved your issues. Please know that we will be available to you 24hrs and it was great meeting you. I wish you many blessings."

Homeowner
Jul 2026
5.0
Electric Furnace or Forced Air Heating System Repair Service
$50,000
Professional, fast response. Very knowledgeable. Diagnosed problem almost immediately.

W. H.
Jul 2026
4.0
Central A/C - Service or Repair
Clean and check Arrived with in time window of what was given Simply went to service and cleaning Offered to change filter but noticed it was not needed Was as finished and cleaned up quickly

Joseph K.
Mar 2022
5.0
Water Heater Installation and Replacement
Yes, I recommend this pro
I could not have been more pleased with the quality of the work. Patrick explained all my options and helped me select the best water heater for my requirements. Very professional and friendly to talk to. Iâ m very meticulous and shopped around. The other companies didnâ t compare to the value and price. I would recommend this company to my family and friends.

Meghan R.
Mar 2021
2.0
$972
I hired Patrick to fix the boiler to the radiant heating system in my home. The pump needed to be replaced. I told Patrick ahead of time that I just needed an inspection and, depending on the cost of the repair, whether I would get the repair done right away or have to wait to save up more money. He agreed to do the inspection and we set up an appointment. He was late on the day of the appointment. I paid for the inspection and told him I would call once I have all the money for the repair and maintenance. He also said he would order the pump and have it ready once I call. Around 2 weeks later, I called him back, letting him know I had the money and set up an appointment. We set up another appointment, then had to reschedule it, because he no longer had the part or it never got ordered. I'm not sure. I called on a Wednesday, then he said he would call the following Tuesday. I texted him on Tuesday, he said he would call the next day. On Wednesday, he said my appointment would be the following Monday. At this point, I was already frustrated, but was trying my best to be polite. On Monday, he called and said he needed to reschedule again for the next day. I asked why, he rudely stated, "Because that's just what we have to do." He also texted to make sure I had the funds after I let him know several times that I did. It recently snowed a lot and was freezing inside. My husband and I have 5 kids and we're using 5 space heaters to warm my house. The following day, he gave me a price that was about $200 more than what he previously quoted me & didn't include the maintenance that I asked him to do, which he said would only be about $75 more (lie), so $972 just for the pump replacement. He came buy Tuesday for what I thought was going to be the repair, but nope, he was just collecting the $500 deposit that he never mentioned (I have all the texts to prove all of this) and scheduled the actual repair for the next day. On Wednesday, he was late as always, replaced the pump, got paid the rest of the money and went about his merry way. Not even a month later, the boiler started leaking. I had to shut off the valves to the boiler and I'm so glad my daughter heard it in time that it didn't damage my floors. I called and texted Patrick to let him know what happened and we needed him ASAP, but of course, he wouldn't be available until the following week. Understandable. I gave him my availability and he said he would get back to me. He didn't reach out to me until a week later. Luckily, it hasn't been very cold. Therefore, I am going to hire someone else to fix the boiler. I was very disappointed in the service I received and am only giving 2 stars, because he replaced the pump. Seems likes a janky job, but I'll give Patrick the benefit of the doubt. God Bless.

Sakrita J.
Dec 2020
5.0
Gas Furnace / Forced Air Heating System - Repair
Yes, I recommend this pro
The work was done with perfection Patrick made sure everything was done and done correctly
Response from American Society of Heating & Cooling Specialists LLC
"Thank you for becoming a new member of our Patriot club annual service agreement we look forward to many years of service and God bless."

Christopher C.
Oct 2020
5.0
Yes, I recommend this pro
$600
Prompt response and great service. Though the team needed additional time to start my repair, they were up front and very communicative as to why, which I greatly appreciated. Work was high quality and the technician even assisted with advisement on how to mitigate a secondary minor issue. Would definitely recommend!

Justin R.
Jun 2020
0.5
Central A/C - Service or Repair
$905
Tech was more than a day late for an appointment, which pushed delivery for parts to the following week. Tech offered rushed delivery at our expense. After installation, tech offered to refill freon for an additional fee, which was rejected due to the high cost. The homeowner wanted to get it done anyway, so I informed the tech. The tech then asked, Do you want me to fix the leak too?- which was never mentioned during the initial diagnostic. This incurred another fee. It seemed as though every time we communicated with the tech there was another issue that could have all been mentioned during the initial consultation. The only reason I gave one star is that the air finally works. If he arrived at his scheduled time, he would have received the parts during the week, instead of ordering on the weekend when suppliers were closed, costing an additional fee. When I voiced my concerns, he either did not remember what he said or denied altogether. I like the ease of use for the website itself but would not recommend this person due to poor time management and inconsistent communication.

Christine M.
Apr 2020
4.5
Central A/C - Service or Repair
Yes, I recommend this pro
Patrick was very knowledgeable and had many years experience so I felt comfortable he was giving me good quality service. We had to reschedule a couple times due to the weather but he was very communicative and was able to fix any issues at a reasonable cost.

Mateyas H.
Apr 2020
4.5
Central A/C - Service or Repair
Yes, I recommend this pro
$525
Patrick was very responsive and explained the process and programs in detail.

Laura P.
Apr 2020
5.0
Yes, I recommend this pro
They have repaired my furnace and are now installing a new air conditioner
Response from American Society of Heating & Cooling Specialists LLC
"It was great working with you. Thank you for becoming a new member of our Patriot Club program."

Mea B.
Mar 2020
5.0
Yes, I recommend this pro
Showed up at the time given. Was thorough with finding the problem. And I was happy with the amount that it cost for the service. Will call them again if need be.
Response from American Society of Heating & Cooling Specialists LLC
"Thank you for your new membership on our Patriot Club program"

Ann H.
Mar 2020
4.0
Central A/C - Service or Repair
Yes, I recommend this pro
.
Response from American Society of Heating & Cooling Specialists LLC
"we appreciate the many years as a member of our Patriot Club..."

Licensing

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

American Society of Heating & Cooling Specialists LLC is currently rated 4.3 overall out of 5.

Monday: Open All Day Tuesday: Open All Day Wednesday: Open All Day Thursday: Open All Day Friday: Open All Day Saturday: Open All Day Sunday: Open All Day

American Society of Heating & Cooling Specialists LLC accepts the following forms of payment: CreditCard

Yes, American Society of Heating & Cooling Specialists LLC offers free project estimates.

No, American Society of Heating & Cooling Specialists LLC does not offer eco-friendly accreditations.

Yes, American Society of Heating & Cooling Specialists LLC offers emergency services.

Yes, American Society of Heating & Cooling Specialists LLC offers warranties.