Google reviewers rate A+ Derr Heating & Cooling 4.9 out of 5 based on 209 reviews, with the owner responding to 96% of them. Customers frequently praise the company for punctual technicians, clear communication, and reasonable pricing for furnace and air conditioning installations and maintenance. However, some lower-rated reviews highlight issues with scheduling reliability, inconsistent service quality, and billing discrepancies for specific repairs.
Google rating: 4.9 out of 5 from 209 reviews (95% five-star).
Reviews on this page: 209 Google reviews (158 with written comments, 10 with photos).
Owner responses: the business replied to 96% of reviews.
Most recent review: October 21, 2026.
Service: Dryer Vent Installation Service serving Louisville, Kentucky.
Data from Google, last updated October 26, 2026.
Photos
Customer reviews
4.9
★★★★★
209 reviews on Google
5★198
4★5
3★2
2★1
1★3
Reviews from Google, shown as published (original wording, unedited).
TT
Thomas T3 reviews
★★★★★
I've been a customer for 3 years. A+ Derr installed my air conditioner and furnace. Very happy with the installation. I've always had positive interactions with the company.
Thank you for your fantastic review, Rose! We're glad to hear that you found our service to be great. Your trust in A+ Derr Heating & Cooling means a lot to us, and we're always here to assist you whenever you need us!
Scheduled them and they came without the right tools the 1st day so then they rescheduled to the following day. 2nd day was canceled..... 3rd day and they come out and snakes the line and cant fix it. Still asked for $100......
Called Dauenhauer Plumbing Heating Air & Electric and they came the same day and fixed it within 3 hours from calling. Said if the problem comes back within a month they'll come back and fix it for free.
Response from the owner · 3 days ago
Thank you for sharing your thoughts, Michael. Our team takes pride in delivering outstanding service and would value the opportunity to discuss your concerns further. Please feel free to reach out to us at [email protected] at your convenience.
Paul was terrific. Very professional and personable
Price assessment: Reasonable price
Price: $200–400
Response from the owner · 6 days ago
Thank you for your fantastic review, Michael! We're glad to hear that our team provided you with professional and personable service. Your trust in A+ Derr Heating & Cooling means a lot to us, and we’re here to assist you whenever you need us!
I was very happy with Jordyn. He was very friendly and helpful and did a good job. I would recommend A + Derr for any of your Air conditioning and Heating problems you are having. We have had hours for a couple of years and they have done a good job a good job of taking care of it. So thank you
Price assessment: Great price
Services: A/C system maintenance
Response from the owner · 5 months ago
Thank you for your wonderful review, Gary! We're glad to hear that Jordyn provided friendly and helpful service while effectively addressing your needs. Your recommendation means a lot to us, and we're always here to assist with any future heating and cooling concerns!
This visit was our bi-annual check up. Very thorough and professional.
Price assessment: Reasonable price
Price: $200–400
Services: A/C system maintenance
Response from the owner · a week ago
Thank you for your fantastic review, Cathy! We're glad to hear that our team provided a thorough and professional service during your bi-annual check-up. Your trust in A+ Derr Heating & Cooling is greatly appreciated, and we're always here to assist you with any future needs!
Shaun, the technician was professional, knowledgeable and did a thorough analysis of my HVAC system by cleaning component parts, checking wires, the thermostat and replacing the air filter. He was very efficient and was on time completing the job in under an hour. He also answered my questions about what he would be doing today so I knew ahead of time before he started the process. Great customer service by Shaun!
Thank you for your fantastic review, Lawana! We're glad to hear that Shaun provided you with professional and efficient service, ensuring your HVAC system was thoroughly analyzed and maintained. Your satisfaction is important to us, and we're always here to assist with any future needs!
I had a great experience A+ Derr. From the estimation thru the installation. Very professional company with excellent pricing!!
Services: A/C system maintenance, HVAC duct & vent installation
Response from the owner · 4 months ago
Thank you for your fantastic review, David! We're glad to hear you had a great experience from the estimation through the installation, and that you found our pricing excellent. Your trust in A+ Derr Heating & Cooling means a lot to us, and we're always here to assist you whenever you need us!
Lafonzo has to be the best technician at A+Derr. He's a great person and really cares about the customer and their equipment. Always very polite and explains how your equipment is running. Anytime I have a question he has the answer.
Response from the owner · 3 weeks ago
Thank you for your fantastic review, Brenda! We're glad to hear that our technician made a positive impression with his caring attitude, politeness, and willingness to explain how your equipment is running. Your trust in A+ Derr Heating & Cooling is greatly appreciated, and we're always here to assist you whenever you need us!