Xcell Williams Heating & Cooling, St. Louis MO

Great customer service friendly technician he explained me to me what the problem was and took care of it I would recommend this company top notch customer service

Tech was very professional he was on time and reliable didn’t have the part to fix my furnace due to the holidays supply possibly wouldn’t be open the tech made it happen repaired my furnace

Amazing company. The lady who answered was an absolute sweetheart and the man (Casey) who showed up was an absolute gentleman and extremely kind and helpful. Helped me get my furnace working the day before Christmas. Lovely company. 10/10

They installed a new AC for us. We are now scheduling a heater replacement as well. The service was very good and prompt. They were able to come out the same day we called to get our estimate and did the work within 2 days. Office staff and technicians were very friendly and helpful.

Xcell Williams heating and cooling is the best. I needed my ac repaired and left a message late Tuesday night. My call was returned before 7am on Wednesday and a Technician (Wyatt) was at my home before 11am to fix the problem. Repairs were explained; reasonably priced and done in a timely manner. Now that’s what I call service! Not only were they responsive, but they were professional and courteous.

I used this company a few years ago for my ac installation and they were just as nice and professional then as well. I will definitely use them again and refer them to all of my friends and family! During this day and time, we could all use a company like them.

Karen Sumrall

William heating and cooling professionals and they know what they are doing and they are reasonable in their prices.

I've been referring and doing business with company even when they were under a different name, however the same great quality of service which is second to none. The repair technician was Johnny Luv and I HIGHLY RECOMMEND him for your service and install needs. In conversation with Johnny Luv, he informed me that his prior experience was with SPIRE GAS Company.

This company had great service Great products they were on time. Hassle free no problems. Best of all great prices.

I needed a new furnace for one of my rental properties. Xcell Williams Heating Co.came out and looked at it. They offered to repair the furnace, but since the furnace was 17 years old, they gave me a good deal on a new one. Came out an installed it the next day, The installers where organized and knowledgeable. Good service great price! I would recommend this company. Bill Lenich

I used Xcell for a recent installation and was very happy with them. Sara in the office was very professional and courteous. The guys that performed the install did a quality job. I will be using them again.

Whenever I have maintenance performed I'm always left with a problem. Currently, no air.

Hands down the lowest price in the area. They quoted us thousands of dollars lower than any other company. Not only was their price the best, their work was top notch.
Casey was amazing and was very responsive. He walked us through everything that needed to be done and never tried to up sale us on something we didn’t need. Jason installed our system and did an amazing job. He took the time to answer any and all questions we had, was on time, finished quicker than expected, and made sure to leave our place clean.
If you need anything done with heating/cooling, you will be overpaying if you go with anyone else. These guys do amazing work!

This company was great with working with me on getting my air back working sense i was past customer with them. They did a fantatic job with my furnace and my AC unit. I will recommend this company with anybody. Shot out to Sara you are a wonderful representative for Xcell Williams.you went above and beyond on my behave. Thank you

Xcell Williams Heating and Cooling did an excellent job.

We had been without air conditioning for 3-4 weeks waiting for another company to repair our HVAC. I called Xcell Williams Heating and Cooling and they sent Casey out the next day. Casey came to examine our system and was able to have workers come out to fix our problem the next day. We are so happy we chose them and that we have a working Air Conditioner!

I was very pleased with the service I received. The installers and office people were outstanding. I would recommend them to anyone I know.

This company was outside my service area but still very helpful when they didn't have to be.

Jason the representative was knowledgeable and helpful with all my questions.
Was helpful with questions concerning another project that I am thinking of pursuing.
They have in the past replaced furnaces to my satisfaction.
Courteous and informative staff.
I recommend Xcell Williams Heating and Cooling.

Brand new install of AC at my business. Very prompt, great communication, and quick service. Machine is running great. Matt was extremely helpful and professional!

I was getting frustrated in getting information from a number of plumbing companies regarding changing out my home's water heater. I was referred to Xcell Williams Heating & Cooling and spoke with Casey H, who got me pricing, installation timing and made sure I was putting in the right size water heater for my home. The process was effortless on my part, Sara (the Operations Manager) and Casey coordinated everything and the installation crew showed up on time and did a great job of replacing the water heater. The water heater works great, and, the installation job is very professional. I know water heater replacement isn't something they advertise, but, they do a great job. Thank you.

In 2019, when I was in the market for a new HVAC system, my mother recommended Xcell Williams Heating and Cooling. During the research process, I met with at least ten HVAC contractors and/or businesses. Xcell clearly stood out from the rest. The installers were knowledgeable, considerate, and did excellent work. Customer service was outstanding; pricing was fair, and the purchase transaction was flawless.

Since then, there has been a change in ownership, and from my perspective, the transition has been seamless- with the exact same excellent customer service, value, and experienced, respectful technicians.

Xcell conducted my Spring check-up today, and uncovered an issue. Still under warranty, Xcell resolved the issue, on-site. Casey, Xcell technician, was timely, efficient, professional, and courteous. Casey, Sara, and, perhaps, the owner, took great care of me.

I highly recommend Xcell Williams.