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Home
About Us
- Financing
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- Specials
- FAQ
- Blog
- Contact Us
Air Conditioning
Heating
Electrical
Plumbing
Commercial Plumbing Services
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Service Areas

Home
About Us
- Financing
- Qualifications
- Specials
- FAQ
- Blog
- Contact Us
Air Conditioning
Heating
Electrical
Plumbing
Commercial Plumbing Services
Sewer & Drain
Service Areas

Home
About Us
- Financing
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- Specials
- FAQ
- Blog
- Contact Us
Air Conditioning
Heating
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Our Services

SERVICE AREAS

We are Serve The DALLAS Metroplex

Addison
Allen
Balch Springs
Bedford
Carrollton
Colleyville
Coppell
Dallas
Euless
Farmers Branch
Flower Mound
Frisco

Parker
Plano
Preston Hollow
Richardson
Rockwall
Rowlett

Garland
Hebron
Highland Park
Hurst
Irving
Lake Dallas
Lewisville
Mesquite
McKinney
Murphy
North Richland Hills

Sachse
Southlake
Colony
University Park
Wylie

Parker
Plano
Preston Hollow
Richardson
Rockwall
Rowlett
Sachse
Southlake
Colony
University Park
Wylie

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Reviews

What Our Customers are Saying

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.

Deborah McFarland

Our daughters AC went out on Sunday and when we called Monday morning an appt was set for that day. Unfortunately as it got later in the day and the original tech was showing to come way out of service window they sent a new tech David. He was professional pleasant and explained exactly what was going on and what we could do to have back in working order. He immediately got to work in the heat and cleaned an added a part to help it run better. He was wonderful and would definitely call for him specifically for our home too. Thanks Harlan Johnson !

john hansen

We were having major a/c problems. We called this company and they immediately sent out their technician, Emmanuel Luna I can't safe enough good things about this company and particularly Emmanuel. He identified and repaired an ongoing problem no other company was able to solve. We are so impressed we signed up for their yearly service on all three of our units. Most importantly the service charge was very reasonable.

Dennis Van Fossen

Kudos and thanks to Emmanuel for doing a fantastic job! An error was on the thermostat and no one else could figure it out but he solved the mystery in that a critter had chewed a wire in the outside ac unit. He efficiently resolved the issue and was also very thorough in explaining the rest of the work he did and recommendations to improve the lifespan of the unit. He’s awesome!

Rekka Melby

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.

Melinda Balli

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Our Blog

AC Blowing Hot in Dallas, TX

AC Blowing Hot in Dallas, TX? Get Fast AC Repair From HJAC

If your ac blowing hot is making your home uncomfortable, you may be dealing with a thermostat issue, dirty filter, airflow

HVAC Installation

HVAC Installation Cost in Dallas, TX: Full Homeowner Pricing Guide for 2026

Understanding the HVAC installation cost in Dallas, TX is one of the most important steps before replacing or installing a new

Heating Services

Heating Services That Enhance Energy Use In Larger Residential Homes

Large residential properties face unique challenges when it comes to heating. Bigger layouts, expanded square footage, and multiroom zones can strain

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Call Us 972-241-7771

Harlen Johnson HVAC, Plumbing & Electrical

HVAC License Number #TECL 588921
Plumbing License Number #RMP38583

24/7 Emergency Services

Call 972-241-7771

Contact Us

2643 Royal Lane
Dallas, TX 75229
sales@hjac.com

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