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Guaranteed Comfort and Energy
HVAC Contractor
Today 12AM–11:59PM
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Building C 20 Schiber Ct Maryville, IL 62062
Building C, 20 Schiber CourtUSIllinoisMaryville62062
HVAC Contractor, Air Conditioning Contractor
HVAC Contractor
Air Conditioning Contractor
Air Conditioning Repair Service
Air Duct Cleaning Service
Air Filter Supplier
Furnace Repair Service
Heating Contractor
Home Inspector
Insulation Contractor
Water Softening Equipment Supplier
Today 12AM–11:59PM
Friday 12AM–11:59PMSaturday 12AM–11:59PMSunday 12AM–11:59PMMonday 12AM–11:59PMTuesday 12AM–11:59PMWednesday 12AM–11:59PMThursday 12AM–11:59PM
Guaranteed Comfort and Energy is a whole-house comfort and energy solution company that specializes in lowering utility costs by providing energy efficient home comfort solutions. We are an HVAC, Air Conditioning, Furnace, repair and installation company. We also provide home performance analysis or energy audits to scientifically measure your homes comfort, energy, and health and safety. We work to improve your quality of life through the following products/services: Air filtration, Water softening and purification, Tankless water heaters, Heat pumps, hybrid systems, geothermal systems, duct sanitizing/cleaning, duct sealing, high-efficiency air conditioning/furnace installations, UV lights, Home Automation, humidifiers, dehumidifiers. We service the entire Metro-East area. Including: Collinsville 62234, Maryville 62062, Glen Carbon, 62034, Caseyville 62232, Edwardsville 62025, Troy 62294, Fairview Heights 62208, O'Fallon 62269, St Jacob 62281, Marine 62061, Alhambra 62001, Highland 62249, Worden 62097, Trenton 62293, Lebanon 62254, Mascoutah 62258, Belleville 62221, Freeburg 62243, Belleville 62220, Belleville 62223, Millstadt 62260, Columbia 62236, Waterloo 62298, Hecker 62248, Smithton 62285, Granite City 62040, Wood River 62095,  Cottage Hills 62018, Bethalto 62010
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Review Summary
4.6
55 reviews
5 star
47 reviews
4 star
3 reviews
3 star
No reviews
2 star
2 reviews
1 star
3 reviews
"He spoke highly of and recommended a Navien Tankless Water Heater."
"The service and knowledgable service man were exceptional."
"Our AC unit died during the hottest part of this summer."
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Jeffrey Myers
2 months ago
We had Guaranteed Comfort out last winter to repair our furnace. We were pleased w/ the work & price of repair and purchased a maintenance package. Brian & Jim (the Owner) did the furnace work. Today, Chris came out to check out our air unit. Chris fully explained everything he was doing & answered all of my questions. Very professional service! We highly recommend using these guys!!! They are our "go to" guys from now on.
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Jeff Kirkley
a year ago
Brian, from Guaranteed Comfort and Energy came out to my house today to service my two furnace units. He was very friendly, very thorough,and even resolved a problem with one of the units. He serviced my air conditioner units back in the summer and did a great job then as well! I trust Guaranteed Comfort and Energy to do a great job right the first time and with friendly, professional, and exceptional service. If I ever need work in the future, I will not hesitate to call them first. Thank you! -Jeff
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George Miller
a year ago
I am retracting a favorable review that I left for Guaranteed Comfort and Energy out of Collinsville IL . The owner is Jim Fleming. Jim is a very good salesman and knowledgeable about his trade. It is his business ethics that is at issue. Bottom Line is to be very careful if you are going to deal with this company. I had Jim come over to my house to give me a quote for a replacement outdated A/C unit that was having a hard time cooling my house. I agreed to a sweet talking man who sold me on a Trane Heat pump and a rebuild of my existing furnace at the cost of 7000.00 along with a bunch of promises that had to be worked out latter of which some he fixed and others he tried to break the bank on. Here is a list of what went on. First Day no show due to vehicle breaking down, I Lost a day of vacation to be there. Next day Installed unit in the rain, hmm big red flag. After install came the final inspection from JIM. He was not happy with the way the technicians installed a cold return air. He calls the installer and told them to come out the next day to correct. They did. A couple days later I noticed that I did not receive a new electrical disconnect as promised nor did I get a complete new A/C line set. Instead I got a mixture of new and old line set because they felt it better not to disturb the concrete in which the old lines went thru. After a complete loss of Freon and a resolder of the joint I was assured it would not leak again. They did replace the old disconnect with a new one. The reason for the old one was better left alone because of the rain. A couple months later the upstairs and the down stairs was off by 12 to 15 degrees. The new air return was going to fix that. No problem they came out again and put baffles in the duct work to balance out the house. This worked great in summer but come winter and the house is still unbalanced and to date is still that way. I gave up on this. Had a new 600.00 smart thermostat that needed new firmware but had no way to update it because it did not come with a 20.00 memory card. They gave me a new memory card no cost. A new high dollar smart blower motor that was replaced in the heater is running so fast that it is hard to hear TV. They determined it was bad and replaced it after pulling it out and in about 6 times. Now a year later it is making a new loud noise and that was going to cost me 800.00 for a replacement of the squirrel cage. For the money I spent it should have come as a replacement when they did the original install. Today I still wonder how it got out of balance. After all it was only pulled in and out about 6 times. Cost me 70.00 to hear about that. I told Jim no thanks. I bought a brand new one from York and replaced it myself in 30 minutes for a total cost of 79.00. While i was in there I noticed how the technicians ran the new wires from motor into a panel that eventually would have shorted out. I called and they did come out again and fixed it. I was told I would get a rebate for my electric bills for the next 12 months after 4 months I started to make calls and on the sixth month eventually they did get that straighten out. Now the straw that made me retract my great review. The heat pump dies in December 2014 it is 18 months old. A high pressure line explodes they come out and again I am bent over when I was told it would cost about 1100.00 to resolder a line and refill with Freon. I asked about how many hours we are talking about and was told between 2 and 3 hours. But I get a break and they will do it for 600. I am not going to pay them 200 or 300 an hour to fix a factory defect. I did get to pay another 70.00 for their time.
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Steve Gould
a year ago
BUYER BEWARE: We called Guaranteed out to check our carbon monoxied level as our alarm had gone off when we ran our boiler heating unit. The service tech shows up and says the reading is the highest he has ever seen at 4000 parts per million. Not once when the service guy was there did our CM alarm go off. Next, the service guy said there was nothing he could do to fix the unit. Then he said he would leave a list of options for fixing the unit. Then he said it would cost thousands to fix it. He then said he had to call his boss. The owner Jim came out to look at our boiler. First thing he said was I am glad we didn't read about you in the paper. Started putting the scare into us about carbon monoxied. He then explained he couldn't track down the comapny name on the unit. He said the company must have only been in business a couple years. The boiler is an Edwards, the biggest boiler company in the world. I found a parts supplier by googleing on my phone. Then he claimed that my hot water heater is about to go out because they only last 10 years. No issues with the water heater ever. Then he tried to sell my wife and I on an $8,000 boiler/water heater combined unit. Said it would normally be $9,000 but was going to give us a 15% discount. He said he could start work the very next day if we called to get financing right away. We got very nervous and called a friend that has worked in the heating cooling industry. He came over and told us that many of these companies work on the scare tactics that we experienced with Guaranteed. The only issue with our boiler was that the vent stack had a build up of leaves because our chimney didn't have a hat/cover. They never once said that may be the issue. Total cost of repair $554 to clear the leaves and install a new hat. As I said, BUYER BEWARE!!! Get a second or third quote to make sure you don't get hooked like we almost did.
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Lorraine Dixon-Young
11 months ago
Jim and his team rescued us from a horrific experience dealing with my HMS Home Warranty. We were already on the fence on whether we should go with HMS when our A/C finally went out. Prior to that decision, we did get estimates from 5 different HVAC companies. Guaranteed Comfort & Energy being one of them. We were so impressed with the personal care and professionalism of Jim and Charlie-This was a few months before the A/C stalled. When it did on April 27, 2015, we made the ultimate mistake of going with the home warranty company. On July 17, 2015, after the installation of a broken a/c unit was put on our home by HMS (yes 3 months) we finally said heck with it, call Guaranteed Comfort. Jim came by that same day. Not only did he honor the quote we had months before, but he installed a temporary a/c unit at no cost until they were able to get us on their schedule to install a new system. Who does that! Jim at Guaranteed Comfort does. He did this because it was a busy season and he went above and beyond to help with our situation. His team, Chris and his co-worker, Mason, put the “P” in professional. I can say this because the previous contractor did not do half of what these gentlemen did. Simple things like; lay down carpet protector in the areas from the door to the a/c unit so they wouldn't track anything in the house. Chris explained the work that was done, the whys and how’s, and answered all questions. The new thermostat is awesome! Our home is comfortable and controlled for when we are home and away. We LOVE it! I recommend this company to any and every one in search of a professional, quality company to fix or install a new a/c. Don't even wait until your old one goes out. Jim and his crew are one of a kind. Thank You Jim!
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Mark Clark
10 months ago
Chris and Mason Installed a new AC unit, blower, coil, thermostat, transfer vent and sealed my duct work. They did a good job, worked quickly, and cleaned up after they were done. They laid down carpets to keep the mess to minimum and explained the system to me. I appreciated that they were careful when walking on the still soft ground of the new landscaping I recently had done, which was where the new AC unit had to be installed.
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Rob Holloway
a year ago
This is a tough review to write, as there was a lot that I liked about this organization, but there were also a number of challenges. I will do my best to articulate my experiences. Cost. Overall, this organization charges a healthy price for their work. While I don't mind paying a good price, I do expect a certain level of service for paying top dollar. Communication is definitely not this organization's strong suite. There was some follow up work that needed to be done, and rather than them being pro-active, it required us to call them and get on their schedule. There were two follow up issues that required their attention. On both occasions, they put forth a solid effort to rectify the issues, and ultimately, I was pleased. One of the issues was pretty major, and while they did fix it, it caused us to endure a lot of trouble and mess in our home. I was rather disappointed that we didn't receive a proactive call from management to apologize and check in. As I said, they did make it right, but it really caused me to do extra work that wasn't anticipated or appreciated. In the meantime, I did have them provide me a quote for another product, and found that they were significantly higher than another, professional contractor. So, they didn't win this business, but I am open to having them bid additional work in my home. On a very positive front, the employees of this organization are extremely polite and conscientious. It is nice to have a professional presence when someone is working in your home. Energy savings. With the insulating and sealing, we have seen a sizable decrease in our energy usage. In this area, we are extremely pleased. I am pleased with the overall quality of work, and the fact that they made sure that I was satisfied with the end result. If they would be more proactive in their communication, and would have reached out as we dealt with a few 'issues,' I think they would have been worthy of a higher rating. Would I / will I do business with them again? Yes, they will be invited out to quote additional work that we may need in the future.
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Stephen Tippit
2 years ago
Awesome! These guys are the best. Brian was just here. Checked everything out thoroughly. couldn't say enough good things about the prompt attention and quality of service! Thank you!

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This is a truly powerful Air Filtration System by Trane. Check it out for yourself with this smoke test. 
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In their circles
2 people
Have them in circles
15 people
Jim Fleming's profile photo
Home Renewable energy: Solar power, wind energy, and geothermal heating and cooling's profile photo
Judi Underhill's profile photo
Steve O'Daly's profile photo
Glenn Hough's profile photo
doudi mohamedelamine's profile photo
ABC Air Conditioning and Heating Specialist's profile photo
Certified HVAC Network's profile photo
Tracy Savoy (ACCA Manual J)'s profile photo
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Before you make any changes to your home, find out scientifically what is wrong with it. Check out our most recent blog post! We discuss the differences in the approach we take to your home, compared to most other companies. 
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