AL-DON Indoor Air Quality Specialists 11740 Lackland Industrial Drive, St. Louis, MO 63146

"I had a heating issue with the cold- the entire Aldon team was awesome . They were very responsive, knowledgeable, respectful. Bottom line was the entire unit had to be replaced. Install team of 4 went above & beyond to make sure the unit was working! I cannot give enough accolades to ALL of them they went beyond expectations even though ive used Aldon for 40 years & cannot express my gratitude enough. The best! I’ve referred them to every one i know. The BEST! Call them! Highly recommend! Kathy OBrien"

"We called Al-Don on the recommendation of a family member and we were not disappointed! They were incredibly helpful and easy to work with. One of the parts we needed was ordered and they were able to locate a temporary part so that we stayed warm during brutally cold days. Lisa, Ryan and Hector were all efficient, helpful, kind, and considerate. Would highly recommend this company for any future heating or cooling needs!"

"I have Jeff and his technicians do the service on my house and my daughter’s house and we are always completely satisfied. I really enjoy the yearly service contract. That way I don’t have to mess with stuff."

"They did a great job fixing my water heater situation in my home. They also showed up on-time on the day of the appointments unlike other companies I've used in the past."

"AL-DON was great to work with. They offered me several different HVAC options for my new install. Their prices and technology offered were WAY better than the two other contractors I had received quotes from. The install was flawless. They have great attention to detail and left everything looking professional. I highly recommend AL-DON for all your hvac needs. I got a state of the art Diakin Fit at a price that beat everyone else. Their communication and professionalism was great."