In the Knoxville area, A-1 Certified Service, Inc. is well known for providing exceptional furnace repair, installation, and service. The people we send out to serve you are also top notch, something you'll see in their reviews below. Everyone you deal with at our company has the goal of making sure your experience with us will be so good you'll call us every time you need help. You can feel confident working with A-1 Certified Service, Inc. because we stand behind our work and comply with all local codes. This is why, as you can see by the map and reviews below, we are rated so highly for AC, Insulation, & Furnace Repair in Clinton, TN. Call us today at (865) 691-5088!
Juan was very cordial, thorough and professional. He did not try to upsell me anything while providing maintenance service. You may want to confirm prices as they’ve had a rate hike since here last year. I wish the company would’ve made me aware of this when the appointment was made.
Jason S. was very professional and always does a great job servicing our air and heating units. We've been with A1 CSI for many years and have always been satisfied with their work!
She was very good
Excellent service, competent workers
Replaced 5 mfd capacitor on a 2.5 ton Colman package unit
Replaced 5 mfd capacitor on a 2.5 ton Colman package unit
Replaced 5 mfd capacitor on a 2.5 ton Colman package unit
Replaced 5 mfd capacitor on a 2.5 ton Colman package unit
2 system fall Maintenance on Amana split systems