Guaranteed Comfort Energy Heating & Cooling


20 Schiber Ct
Maryville, IL 62062
(618) 726-3287
Today: 12:00 PM to 12:00 PM
American Express, ATM/Debit, Discover, Personal Checks, Cash, Mastercard, Visa
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. Our skilled technicians and installation teams are all highly qualified, background checked and maintain all proper state certifications for the safety of your home. The Guaranteed Comfort and Energy AC and Furnace service departments offer FREE service calls with any repair, FREE estimates, FREE second opinions and 24 hour emergency service. We offer many different air conditioning units, gas furnaces, heat pumps, boilers, as well as AC repair service, gas furnace service, heat pump service, boiler service, and indoor air quality service that make homes safer, more energy efficient, and more comfortable.
Mon 12:00 PM to 12:00 PM
Tue 12:00 PM to 12:00 PM
Wed 12:00 PM to 12:00 PM
Thu 12:00 PM to 12:00 PM
Fri 12:00 PM to 12:00 PM
Sat 12:00 PM to 12:00 PM
Sun 12:00 PM to 12:00 PM

Products and Services

24-Hour Availability
24-Hour Emergency Repairs
AAA Discounts
Air Conditioning
Air Conditioning Contractors
Air Conditioning Repair
Air Conditioning Service
Air Duct Cleaning
Antibacterial Treatments
Central Air Conditioning
Central Heating Systems
Chemical Cleaning
Cleaning Services
Coil Cleaning
Commercial HVAC
AC Compressors
AC Parts
Air Conditioners
Air Ducts
Air Filters
Air Purifiers
Attic Fans
Baseboard Heating
Boilers & Water Heaters
Central Vacuum Systems

Reviews for Guaranteed Comfort Energy Heating & Cooling

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Terrible experience with Guaranteed Comfort And Energy by Jerry C via Customer Lobby on 11/17/2014

My experience was totally different; like night and day from what I have read. Jim and Guaranteed Comfort did not treat me with any of the respect from what I am a custom to. He never returned calls when I had issues. He did not stand…

We have now had 2 Ameren bills since Guaranteed Comfort & Energy worked their magic at our house. Last month our bill was $80 and this month $100. This is exactly 1/4 of the amount we previously spent at the same time last year. I am SO IMPRESSED by John & Lynn F via Customer Lobby on 6/6/2014

Cannot say enough about how pleased we are with Guaranteed Comfort & Energy crew. Add that to 1/4 the amount of our last two bills from Ameren compared to last year. You all are the best!

Very Professional and informative staff to work with by Michael M via Customer Lobby on 12/8/2013

Just had new system installed in November. It has made a big difference in the comfort of our home, especially in our master suite and our son's bedroom. These two rooms were the coldest ones in the house and now they are extremely…

Thanks Jim, Chris & Allen! by Dan F via Customer Lobby on 12/6/2013

The crew at Guaranteed Comfort did a great job diagnosing the problem on my 37 year old furnace and giving me some great options for repair or replacement. I got a good price on a new high-efficiency furnace. They installed the new…

professional service by Marian A via Customer Lobby on 11/21/2013

I had Jeramy Weyman conduct an annual service on my furnace. He was very professional, showed up on time, and told me exactly what he had done for the service.

Fast and Easy and Better by John B via Customer Lobby on 10/17/2013

So our water heater goes kaput . We want to go with the new energy stingy tankless water heaters. We call Mon. On Tuesday, 8am, Chris and Brad are at our house. They are, by the way, very friendly and knowledgeable and more than willing…

First class act I would recommend them to anybody by John B via Customer Lobby on 8/18/2013

Jim and his installers are extremely knowledgeable. They came up with ideas to make our house more comfortable And heat and cool cheaper. They are professionals that do their tasks quickly and efficiently and safely. They left zero mess…

My Review by margaretm641098686 via Citysearch on 7/23/2013

I had just moved into my new home and my handyman noticed that the A/C unit was very dirty. He put me in contact with Guaranteed Comfort and they came out the next morning. Jeramy was very efficient and friendly not only taking care of…

Great experience. by Matt L via Customer Lobby on 5/14/2013

This was my first time using Guaranteed Comfort and Energy. They were very helpful and upfront. They did a good job and it turned out great.

Flawless. by Brad W via Customer Lobby on 5/10/2013

All of the work by Guaranteed Comfort and Energy was flawless! They were very detailed, very neat, and the follow up is awesome.

Worked on my 38 year old furnace and AC unit by Aletha T via Customer Lobby on 5/8/2013

I had a furnace and AC unit that were 38 years old that needed to be replaced or repaired. I called Guarenteed Comfort and Energy and they poured in a heat pump and outside exchange unit for me. That was handled very professionally and…

Saticfied Customer by Michael A via Insider Pages on 5/8/2013

For past two years after evicting renters have not had heat or AC in home except fire place and electric space heaters,and fans do to high cost of the system required for home. Contacted number of heating/cooling companys price was over…

Great price but service leaves much to be desired. by Ken F via Customer Lobby on 5/7/2013

I got a good deal financially with Guaranteed Comfort and Energy, but their service leaves much to be desired. I have had problems with their sales representative not keeping appointments, so far he has broken three. The men who installed…

Trane Heatpump by Darla B via Customer Lobby on 4/28/2013

Jim, management Dan,Sales,Chris and Brad in Service install They are just the best from putting down mats and sweeping after the job is done. No fooling around work in a timely fashion and we enjoyed the comfort within hours. Our unit was…

Exceptional energy savings solution and service provided by Guaranteed Comfort and Energy. by Lori H via Customer Lobby on 3/7/2013

The staff, solutions and service provided by Guaranteed Comfort and Energy was exceptional. They evaluated our 23,000 sq foot warehouse and office space for energy savings solutions. Their recommendation of a zoning sytem and…

Wonderful service, a pleasure doing business. by Peggy P via Customer Lobby on 2/15/2013

Quality team of service people. Jim knows his stuff and will solve any heating or cooling problems you may have. He literally makes your problem his problem until it is solved. We recently upgraded our heating and cooling in our home and…

Great Service!!!!!! by Carrie S via Customer Lobby on 1/25/2013

Last month our furnace went out right before Christmas. Even though that is one of the worse times to experience something like that Guaranteed Comfort made it better. Luckily it was just the igniter on the furnace but thankfully Jeremy…

Great Service Team by Amie K via Customer Lobby on 12/13/2012

I was very pleased with the service your company provided. When we noticed yesterday morning are furnace was once again blowing cold air my husband called and Jeremy came out yesterday morning and found cracks in the furnace and told us…

The staff at Guaranteed Comfort and Energy is wonderful. by josh w via Customer Lobby on 11/4/2012

We had our new system installed last month and have had no problems. I had a question the day after they installed the unit and Jim sent someone within twenty minutes to go through the system and see if there was an issue. He then called…

The BEST Company and Employees that I have ever done business with. by Gail H via Customer Lobby on 10/16/2012

I have had my furnace and air conditioner for a year and I couldn't be more satisified. My energy bills have gone down a fair amount and I couldn't be happier. Jim and his employees are very knowledgeable and friendly, and, are always…

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