JLM Heating and Air Conditioning

JLM Heating and Air Conditioning has earned a perfect 5.0-star rating across 165 reviews in St. Louis, Missouri. This family-rooted contractor handles residential heating and cooling needs across the metro area, with technicians available six days a week from early morning through mid-afternoon. Emergency service is available, as evidenced by a reviewer who contacted them on a Tuesday evening and had a technician at their home by 8am the following morning. The company maintains standard business hours Monday through Friday from 7am to 4:30pm, with Saturday availability until noon and Sunday hours until 11am.

What distinguishes JLM from competitors is the direct involvement of ownership in customer interactions. The owner, Jozo, answers calls personally rather than routing inquiries through a dispatch center, providing estimates without requiring upfront diagnostic fees, even when another company has already identified the issue. This approach contrasts sharply with competitors who charge $89 just to assess a problem that has already been diagnosed. Reviewers specifically commend this honesty, noting Jozo recommended against unnecessary repairs for a three-year-old system that another contractor claimed needed a new heat exchanger.

Customer stories highlight specific technicians and scenarios. When Dan G's mother faced a costly and unnecessary repair recommendation from another company, Jozo provided an honest second opinion that saved her thousands. For Kimara Cobbs, technician Grant performed a thorough boiler inspection, explaining the issue in detail and discussing additional services before departing. Andy, who handled control valve replacement, was described as professional, friendly, and informative throughout the service process.