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Claim This BusinessJ. Molnar Heating & Cooling, Inc. has built a loyal following across Lakeland and Polk County since earning a perfect 5-star average from 709 reviews. Homeowners trust this locally operated contractor for installations and repairs on both standard air conditioning systems and heat pump technology. The company maintains standard weekday hours Monday through Friday, with Saturday availability for homeowners who need weekend service. Whether the job involves a new installation, an emergency repair, or routine annual maintenance, the crew takes time to explain findings and options before recommending any work.
What distinguishes J. Molnar Heating & Cooling is their diagnostic precision. Multiple reviewers report that the crew identified root causes that other contractors missed for years. Patricia Cordero explains that after three years of recurring problems and multiple technicians recommending replacement, David and Pete isolated the real issue and fixed it for a fraction of replacement cost. The company handles diverse home types including mobile homes and older houses with limited attic access, adapting installation approaches to each situation rather than applying standard solutions.
When Carla Bragg needed a new system in her older home with tight attic constraints, Matt and Jerry worked nonstop and completed the installation so efficiently that she noticed energy savings within two months. Mark guided John Parker through unit selection with detailed explanations, resulting in a clean installation completed on schedule. Ron Tomlin requested annual maintenance scheduling after David and Jose repaired his malfunctioning heat pump, a decision based on seeing the crew troubleshoot and resolve the issue directly. These named technicians represent the consistent, knowledgeable approach that earns repeated business from Lakeland homeowners.
J. Molnar Heating & Cooling, Inc. has built a loyal following across Lakeland and Polk County since earning a perfect 5-star average from 709 reviews. Homeowners trust this locally operated contractor for installations and repairs on both standard air conditioning systems and heat pump technology. The company maintains standard weekday hours Monday through Friday, with Saturday availability for homeowners who need weekend service. Whether the job involves a new installation, an emergency repair, or routine annual maintenance, the crew takes time to explain findings and options before recommending any work.
What distinguishes J. Molnar Heating & Cooling is their diagnostic precision. Multiple reviewers report that the crew identified root causes that other contractors missed for years. Patricia Cordero explains that after three years of recurring problems and multiple technicians recommending replacement, David and Pete isolated the real issue and fixed it for a fraction of replacement cost. The company handles diverse home types including mobile homes and older houses with limited attic access, adapting installation approaches to each situation rather than applying standard solutions.
All 709 reviewers awarded 5 stars, with repeated praise for diagnostic accuracy and fair pricing. Technicians Mark, Matt, Jerry, David, Jose, and Pete appear by name across multiple reviews, each time paired with positive outcomes including same-day repairs and complex installations.
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| ThursdayToday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | 8 AM–5 PM |
New system installation for standard air conditioners and heat pump systems, including replacements in challenging layouts like mobile homes and older homes with limited attic access.
Troubleshooting and repair services for systems that have stumped other contractors, with technicians trained to identify root causes rather than recommend premature replacement.
Annual maintenance, performance tune-ups, and repairs for heat pump systems, including emergency responses when heating or cooling functions fail.
Removal of older furnaces and installation of modern heat pump alternatives, with ductwork modifications when existing systems are incompatible.
Same-day service for urgent breakdowns, with technicians who arrive within quoted time windows and work efficiently to restore comfort quickly.
Annual service agreements that keep equipment running efficiently and catch potential issues before they escalate into expensive failures.
Specialized installation and repair services for mobile home heating and cooling systems, including custom ductwork routing and equipment placement.