Customers generally praise Harlen Johnson's technicians for being friendly, professional, and knowledgeable. However, some reviewers have had issues with the company's scheduling and honesty, with a few feeling that they were pushed to buy new equipment rather than having their existing units repaired.
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Create a Free Account"Customers generally praise Harlen Johnson's technicians for being friendly, professional, and knowledgeable. However, some reviewers have had issues with the company's scheduling and honesty, with a few feeling that they were pushed to buy new equipment rather than having their existing units repaired."
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Last updated 9/3/2026
See what homeowners said about response time, pricing surprises, clean-up, and whether they would hire again.
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"Our main A/C unit stopped working during the July 4th weekend. I called Harlan Johnson Saturday afternoon and Nathan came out first thing on Sunday morning to fix our issue (faulty dual capacitor). My old maintenance…"
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Create a Free Account"Tankless water heater repair: after 2 visits in a week and paying them $1,318, they told me they couldn't fix my unit and that I was probably better off buying a brand new one. I'll never call them again!"
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Create a Free Account"Good service - had my annual summer inspection and a coolant leak was discovered. Since the unit was 20 years old we decided to replace it. Edwin and his crew did the installation - they were friendly and courteous.…"
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Create a Free AccountHeating & Air Conditioning/HVAC in Dallas · All Dallas categories · How Mike's List ranks businesses
