Pro Business

Harlen Johnson HVAC, Plumbing & Electrical

Dallas HVAC Companies
Ranked #6 in Dallas | Grade B+
4.80 (1162 reviews)

Harlen Johnson HVAC, Plumbing & Electrical

Local HVAC, plumbing, and electrical provider serving Dallas with around-the-clock availability. Technicians focus on practical fixes and clear communication.

Why Homeowners Choose This Business

Local team serving Dallas with full HVAC, plumbing, and electrical coverage. Open 24 hours with scheduling options to fit busy days. Strong recent customer ratings and consistent follow-through from first call to final cleanup.

Service Area

Serving Dallas from the Royal Ln location, with calls across surrounding neighborhoods and nearby suburbs.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Shows strong customer satisfaction signals based on review quality and volume.

Trust Signals

Emergency Service - Open 24 hours; call for availability and dispatch times.

Services Covered

  Electrical Services
  General Contractor
  Plumbing Services
  Service
  AC Repair
  Commercial Service
  Furnace Repair
  Residential Service
  Heat Pump Service
  Installations
  HVAC replacement
  Repairs
  HVAC Maintenance
  Thermostat Installation
  Ductless Mini-Split
  Indoor Air Quality
  Plumbing Repair
  Drain Service
  Electrical Repair
  Panel Troubleshooting

Services include AC repair and replacement, heating repair and replacement, seasonal HVAC maintenance, thermostats and controls, basic plumbing fixture service and drain issues, and common residential electrical troubleshooting and repairs.


Recent Reviews

4.80

(Based on 1162 reviews)

Google rating 4.80 from 1162+ reviews reflects timely scheduling, courteous techs, and solid cleanup after the job.

Harlan Johnson maintains & services our commercial HVAC units.

Very impressed with how this company handled a recent service situation. When a follow-up issue came up, the service manager took the time to review it and resolved everything quickly and fairly. That kind of accountability and customer care is rare these days. I truly appreciate a company that stands behind their work.

The HJ tech Charles was on-time, friendly, and professional on the HVAC maintenance visit. He patiently answered my questions, and was efficient and clean in his work. I would definitely use him and HJ again in the future.

Jose rescued my house. I had 50 year old cast iron pipes that had to be replaced, plus other plumbing issues. Jose was so patient with me as I had lots of questions, and he explained things clearly. He was professional, yet always sensitive to my anxieties that come with undertaking such a huge disruptive project. It was clearly evident that he took immense pride in doing his job well. It was a comfort knowing he would do the right thing, the right way. I found him to be a man of integrity-- which you don't always find as we all know.

Best service I’ve received for any type of home repair in years. Jennifer at dispatch was so caring and efficient. Our technician, Jesus, was top notch an went above and beyond to help. He was also patient with our toddler and dog. I highly recommend.

This review is not really about NTX but about the person they sent out from a different company. His name was Miguel and he was excellent. Very knowledgeable, didn't rush thru his evaluation of our problems even though it was very late in the afternoon/evening! He works for Harlin Johnson Plumbing and I would definitely use him again fingers crossed we don't need one anytime soon!


Special Offers

Emergency Service

Emergency service may be available for urgent issues.


Frequently Asked Questions

Yes. The business lists Open 24 hours daily on Google, and phone lines are available at any time. Actual dispatch availability can vary by workload, but you can call to request service whenever you need it.

They service central air conditioners, furnaces, heat pumps, and indoor air components. Typical visits include diagnostics, repairs, maintenance, and system replacements when needed.

Same-day service is often available, especially for urgent no-cool or no-heat calls. Availability depends on routing and current demand, so calling early improves your chances.

Yes, the team also performs common plumbing and electrical services. Scope can vary by technician and parts on hand, so describe your issue when booking.

Call the office to set a visit so a technician can assess your home and discuss options. Estimates are based on system size, efficiency goals, and any needed code or ductwork changes.
 Verified Listing

Opening Hours


  • Monday Open 24 hours
  • Tuesday Open 24 hours
  • Wednesday Open 24 hours
  • Thursday Open 24 hours
  • Friday Open 24 hours
  • Saturday Open 24 hours
  • Sunday Open 24 hours

Request Service


Business Details


Business Rating
4.80 (1162 reviews) Pro Business
Address
2643 Royal Ln, Dallas, TX 75229, USA, Dallas, TX 75229, US
Business Type
general_contractor

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