Sep 2026
I highly recommend Xcell Williams. Communication was professional and clear. The technician, Eric was awesome! He diagnosed the problem with our AC and returned the same day with the parts needed to fix it.
About Xcell Williams Heating & Cooling
Xcell Williams Heating & Cooling, based in St. Louis, is dedicated to providing exceptional HVAC services, including installation, maintenance, and repair. Customers appreciate the company's fast service, great prices, and commitment to cleanliness after installations. The office staff is noted for their professionalism and proactive communication, especially in coordinating with home warranty companies. Technicians are described as skilled and thorough, ensuring optimal performance of heating and cooling systems. They quickly identified the issue, diagnosed the problem, and had everything fixed within a day. Many clients express gratitude for the attentive care they receive, highlighting the company's focus on customer satisfaction and affordability. The team is very friendly, professional, and knowledgeable, offering great tips on maintenance without an upsell. Overall, Xcell Williams is highly recommended for anyone seeking reliable heating and cooling solutions.
Reviews
Aug 2026
I was referred to Xcell heating and cooling by home warranty company. There were lots of issues with that Company. Sara was a god send in helping us get through the issues. She went above and beyond trying to resolve the issues. She gave us options we didn’t know we had. Sara has sold us on Xcell. They will be our heating and cooling company for here on out. A shout out to the two techs that put in our new system. Great guys. Fantastic people at this company. Thank you Sara for all your help
Jul 2026
Tommy was very courteous, patient and knowledgeable. It was an all day job but he remained professional. Ran into a little glitch and was still courteous and informative. I have no doubt that any customer who has him will be totally satisfied.
Photos
Hours
Monday Open 24 hours
Tuesday Open 24 hours
Wednesday Open 24 hours
Thursday Open 24 hours
Friday Open 24 hours
Saturday Open 24 hours
Sunday Open 24 hours
Good to know
- on-site services
- no online estimates
- accepts credit cards
Location
3901 Shirley Ave, St. Louis, MO 63121
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