
A+ Derr Heating & Cooling
A+ Derr Heating & Cooling
A+ Derr Heating & Cooling provides heating, air conditioning and indoor air quality services in Louisville and surrounding communities. It offers 24/7 heating and cooling emergency service, with next-day installations available.
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Business Highlights
- It is a fourth-generation family-operated company.
- It has served the area for over 50 years.
- It lists Kentucky license HM06269.
- It identifies itself as a Lennox Premier Dealer.
- It offers a 100% satisfaction guarantee.
- It describes its technicians as licensed and experienced.
Service Area
Louisville, Evansville, Newburgh, Boonville and Western Kentucky.
Active Business Listing
A+ Derr Heating & Cooling is one of 11 HVAC companies ProsGrade lists in Louisville, Kentucky.
5 services listed, including Heating, Air conditioning and Boilers. Open 24 hours, 7 days a week. 2,283 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How A+ Derr Heating & Cooling compares with the other 10 HVAC companies on ProsGrade in Louisville, using public Google ratings and review counts.
- Has the most Google reviews (2,283) of the 11 Louisville HVAC companies on ProsGrade.
Trust Signals
Open 24 hours for scheduling and support; call to check current response times.
Services Covered
5 services- HeatingInstallation, replacement, repair and maintenance; furnaces, heat pumps and ductless mini-splits
- Air conditioningRepair, installation and maintenance; traditional units, heat pumps and ductless mini-splits
- BoilersReplacement, repair and maintenance
- Geothermal systemsRepair and replacement
- Indoor air qualityDuct cleaning, dehumidifiers and air purifiers
Reviews
What customers say
Customers praise staff members’ knowledge and describe installation visits as punctual and tidy. One customer appreciated being shown furnace options without pressure and having a Saturday installation arranged for the next morning. A humidifier customer says a technician returned to adjust settings after installation; another describes a fast response to a weekend issue through the company’s 24-hour service.
Customer Reviews
Melissa Banks
P OBryan
Christina Ludwig
Robbie Ostyn
Ann Holder
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Frequently Asked Questions
How does A+ Derr schedule a service visit?
After service details are submitted, A+ Derr confirms the information and schedules a visit; a technician is dispatched at the scheduled time.
Does A+ Derr offer financing?
It offers financing through multiple lenders; loans are subject to credit approval.










