KLM
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KLM Heating & Cooling has kept Louisville comfortable since 1997 as a family-owned, A+ rated BBB business. This contractor holds Kentucky license #KY1742 and serves residential and commercial clients across Louisville, Hurstbourne, Jeffersontown, Fern Creek, Lyndon, Middletown, Mount Washington, and St. Matthews. With a near-perfect 4.9-star average from 577 reviews, their team of Nate-certified technicians handles furnace repairs, heat pump installations, boiler services, and preventative maintenance. The office at 11216 Decimal Drive operates Monday through Friday from 7:30 AM to 5 PM, with 24/7 emergency service available for sudden HVAC failures.
What distinguishes KLM is their commitment to individualized solutions over cookie-cutter replacements. Every new installation is uniquely designed to match the specific needs of each home or business, and the company backs all work with a 100% satisfaction guarantee. They offer financing options for qualified buyers and maintain certifications in commercial HVAC, refrigeration, and restaurant equipment repair, a niche specialization not common among residential-focused contractors. As a Christian-based company, their service philosophy emphasizes honest diagnostics and transparent pricing rather than recommending unnecessary replacements.
Rich and Carol Ann's recent review highlights how technicians Sean, Nick, and Bradley completed a challenging new system installation during rain, taking care to protect flooring with drop cloths while answering every question. Angie White described receiving a same-day estimate followed by installation just two days later, Jermane and Dan managed the seamless replacement of a failed heat exchanger. Another reviewer, Megan, appreciated that the service technician correctly identified an old filter issue rather than overselling repairs, saving her from an unnecessary expense.
What Customers Say
577 reviewers award 4.9 stars, with multiple customers specifically praising same-day response times and honest diagnostics, Angie White received an estimate the same day she called, and Megan Chan noted the technician found her furnace issue was simply an old filter. Five-star reviews consistently mention named technicians and efficient, professional service, while one 4-star review cited incomplete maintenance on a furnace cover.
Working Hours
| Sunday | Closed |
| Monday | 7:30 AM–5 PM |
| Tuesday | 7:30 AM–5 PM |
| WednesdayToday | 7:30 AM–5 PM |
| Thursday | 7:30 AM–5 PM |
| Friday | 7:30 AM–5 PM |
| Saturday | Closed |
Services
Furnace & Heating Repair
Diagnostic and repair services for furnaces, heat pumps, and heating systems, including emergency breakdowns.
AC Repair & Maintenance
Air conditioning tune-ups, diagnostics, filter replacements, and repair services for cooling systems.
New System Installation
Custom-designed AC, furnace, and heat pump installations uniquely tailored to each home or business.
Heat Pump Services
Installation and repair of traditional and ductless heat pump systems for year-round efficiency.
Commercial HVAC
Heating and cooling services for commercial buildings, including industrial and retail properties.
Restaurant Equipment Repair
Specialized repair and maintenance for commercial kitchen refrigeration and ventilation equipment.
Indoor Air Quality Solutions
Services addressing ventilation, air filtration, and overall indoor airhealth concerns.