HVAC Services in Louisville & Lexington, KY — Heating, Cooling & Air Quality

Louisville’s HVAC Company Since 1958

Dauenhauer Plumbing, Heating & Air has been serving Louisville homeowners since 1958. Our team has been offering top heating, cooling, and air quality service for over 67 years. Our licensed and background-checked technicians have received more than 10,000 five-star Google reviews from satisfied customers in Louisville, Lexington, Elizabethtown, and Shelbyville, KY. Dauenhauer is one of the few local home services companies to offer plumbing, HVAC, and electrical services with 24/7 emergency availability. Dauenhauer is your trusted source for whole home comfort.  

Let’s explore our heating, cooling, and indoor air quality services in Central Kentucky.  

Heating Services in Louisville & Lexington 

Dauenhauer repairs, maintains, and installs all major heating systems in Louisville and Lexington, KY. We also offer 24/7 emergency heating repairs to ensure your safety and comfort. 

Furnace Repair & Installation 

Louisville and Lexington winters demand reliable heating—that’s why we’re proud to offer emergency same-day service for furnace repairs and installation. Our team performs furnace installations and repairs on all brands. We’ll provide repair or replacement guidance based on your unit’s age or condition.  

Heat Pump Services 

Dauenhauer also offers installation, repair, and seasonal tune-up services for heat pumps. Heat pumps are an ideal option for Louisville’s mixed climate and can cut heating costs compared to gas furnaces due to higher energy efficiency.  

Boiler & Additional Heating Systems 

If you have a boiler at home, we can take care of that too! Our technicians specialize in boiler repair, maintenance, and replacement. Additionally, we can install and maintain infrared garage heating systems.  

Air Conditioning Services in Louisville & Lexington 

When Louisville summers push temperatures past 90 degrees, Dauenhauer’s AC technicians are available 24 hours a day, 7 days a week.  

AC Repair Lexington, KY 

Our technicians can diagnose and repair all AC makes and models. Whether your AC is blowing warm air or has broken down completely, Dauenhauer can help. We ensure that our service vehicles are fully stocked to support same-day repairs. AC repair in Louisville, KY is a primary emergency service offering 24/7 availability.  

AC Installation & Replacement 

Our air conditioning installation services ensure that you get the right-sized unit for your home. We carry major brands, conduct on-site estimates and offer financing options for  

AC installations and replacements.   

Ductless Mini-Split Systems 

Ductless systems are ideal for home additions, garages, or older Louisville homes without existing ductwork. These systems offer efficient heating and cooling in one unit, making them an all-in-one solution.  

Air Quality & Indoor Comfort Services 

Dauenhauer also proudly offers indoor air quality testing and solutions in Central Kentucky. 

• Air purification systems 
• Duct cleaning 
• Dehumidifier installation and repair 
• Indoor air quality testing 

Whether you need allergy or asthma relief or are seeking preventative indoor air quality measures, Dauenhauer can provide a solution. Note that Dauenhauer’s indoor air quality services pair with HVAC installs at no additional trip charge! 

How Much Does HVAC Service Cost in Louisville, KY? 

In Louisville, KY, HVAC service costs vary depending on the type of repair needed for your AC or furnace. Full system replacement pricing depends on factors like equipment type and home size, while standard HVAC tune-ups and maintenance visits are typically much more affordable. With Dauenhauer Plumbing, Heating & Air, you’ll get on-site estimates on all system installations and replacements, as well as financing options for qualified homeowners. We also offer a VIP Membership plan that lowers the cost of routine maintenance. 

Final costs depend on system age, brand, and complexity. Call (502) 275-0400 for an on-site estimate. 

Signs Your HVAC System Needs Service 

Here are some of the top warning signs your HVAC system needs professional evaluation.  

• Warm air blowing from your AC vents when the thermostat is set to cool 
• Heating or cooling bills spiking without a change in usage habits 
• Unusual noises, such as banging, squealing, or rattling, coming from your unit 
• Uneven temperatures between rooms or floors of your home 
• Frequent on-off cycling without reaching the set temperature 
• Ice forming on your outdoor AC unit or refrigerant lines 
• Your system is over 10-12 years old and has not been serviced recently 
• Poor indoor air quality with excessive dust, humidity, or stale odors 

If you notice any of these signs, call Dauenhauer 24/7 at (502) 275-0400 for fast, local HVAC service. 

Serving Louisville, Lexington & All of Central Kentucky 

Dauenhauer’s licensed, insured, and background-checked technicians service homes in Louisville, Lexington, Elizabethtown, Shelbyville, Jefferson County, Fayette County, and surrounding areas.  

With 24/7 emergency availability, Dauenhauer is your trusted source for HVAC repairs and installations. Our VIP Membership plan for recurring customers helps you save money on routine maintenance.  

Dauenhauer also handles your plumbing and electrical systems, so you can make one call for everything! 

Schedule online or call (502) 275-0400 for emergency service! 

Frequently Asked Questions 

How often should I have my HVAC system serviced?  

You should have your HVAC system serviced twice per year: once in the spring for your AC and once in the fall for heating. Routine maintenance helps keep your system efficient, maintain your warranty, and catch issues early. Dauenhauer’s VIP Membership reduces the cost of routine maintenance for recurring customers.  

How long does an HVAC system last? 

Central air conditioners typically last 15 to 20 years if properly maintained, while gas furnaces can last 20 to 30 years with annual service. Due to Louisville’s hot summers and cold winters, HVAC systems work harder than in milder climates, which makes regular maintenance even more important for equipment lifespan. Dauenhauer recommends two tune-ups per year: once in the spring before cooling season, and once in the fall before heating season. Routine maintenance extends your system’s lifespan and helps maintain manufacturer warranty coverage. 

Should I repair or replace my AC unit?  

Generally, if the repair cost exceeds 50% of the replacement cost, or the unit is over 12 years old, replacement is more cost-effective for homeowners. Dauenhauer provides on-site estimates and honest recommendations.  

What is included in an HVAC tune-up? 

During a tune-up, Dauenhauer’s technicians will inspect the heat exchanger, clean coils, check refrigerant levels, test the thermostat, lubricate moving parts, and inspect ductwork for leaks. 

Does Dauenhauer offer HVAC financing?  

Yes, financing is available for qualifying homeowners on new system installations and replacements. Ask us about current promotional rates.