Note: these maintenance plans are for residential units only. Maintenance plans for Commercial units are available upon request.
Enhance Performance and Efficiency of Your AC with Professional Maintenance and Cleaning Services. Keep Your System Running Smoothly.
Boost Your AC's Performance with Expert Maintenance and Tune-Up Services. Ensure Optimal Efficiency and Comfort in Your Space.
Enhance Your Cooling System's Lifespan with Professional Maintenance and Replacement Services. Keep Your Space Comfortable and Energy Efficient.








Welcome to Mondragon Mechanical, your trusted provider of air conditioner maintenance services in Dallas. Our expert technicians offer comprehensive AC tune-ups, thorough cleanings, timely filter replacements, and flexible service contracts.
With our professional maintenance, you can ensure your AC system operates at peak performance, providing optimal cooling and energy efficiency. Regular AC maintenance not only extends the lifespan of your unit but also helps prevent unexpected breakdowns and costly repairs. At Mondragon Mechanical, we prioritize customer satisfaction and deliver reliable, top-quality service. Our skilled technicians are equipped with the knowledge and tools to handle any maintenance task, ensuring your air conditioner operates smoothly all year round.
Don’t compromise on comfort and efficiency—schedule your AC maintenance with Mondragon Mechanical today. Experience the benefits of a well-maintained AC system and enjoy cool, clean air in your home or office. Trust our expertise and let us take care of your air conditioner, so you can stay cool and comfortable during the hot Texas summers.
Contact us now to book your AC maintenance appointment and take the first step towards a hassle-free cooling experience.

When it comes to air conditioner maintenance, it’s crucial to understand what tasks are involved and what components should be checked.
At Mondragon Mechanical, our comprehensive AC maintenance service ensures your system remains in optimal condition.
1. Filter Replacement: We start by inspecting and replacing the air filters, ensuring proper airflow and improved indoor air quality.
2. Coil Cleaning: Our experts clean the evaporator and condenser coils, removing dirt and debris that can hinder performance and efficiency.
3. Drain Line Cleaning: We clear the condensate drain line to prevent clogs and potential water damage.
4. Electrical Connections: Our technicians check and tighten all electrical connections to ensure safe and reliable operation.
5. Refrigerant Level Check: We measure and adjust the refrigerant levels to optimize cooling performance and efficiency.
6. Condenser Unit Inspection: Our team inspects the outdoor condenser unit, cleaning it and ensuring proper airflow around the unit.
7. Fan and Motor Inspection: We inspect and lubricate the fan motor, ensuring it operates smoothly and efficiently.
8. Thermostat Calibration: Our technicians calibrate the thermostat, ensuring accurate temperature control.
9. Overall System Performance Check: We perform a thorough evaluation of the entire system, identifying any potential issues or areas for improvement.
Regular AC maintenance not only enhances the lifespan of your unit but also helps prevent costly breakdowns and ensures energy-efficient operation.
Keeps your system running smoothly and your home comfortable. Schedule your maintenance appointment today!


Regular maintenance helps ensure optimal performance, energy efficiency, and prolongs the lifespan of your AC unit. It also helps prevent costly breakdowns and ensures clean and healthy air quality.
It is recommended to schedule maintenance at least once a year. Ideally, it’s best to have it done before the cooling season begins to ensure your system is in top condition.
Maintenance typically includes tasks like cleaning or replacing filters, inspecting and cleaning coils, checking refrigerant levels, lubricating moving parts, and verifying system performance.
Some signs include reduced cooling efficiency, strange noises, unpleasant odors, poor airflow, frequent on/off cycling, or noticeable increases in energy consumption.
The duration depends on the complexity of the system and the tasks involved. Typically, a comprehensive maintenance visit can range from one to two hours.








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EXCELLENT Based on 486 reviews Michelle PerezTrustindex verifies that the original source of the review is Google. Great customer service , reliable and easy service!!! Highly recommend ❤️ Kevin CoffeyTrustindex verifies that the original source of the review is Google. Jorge and staff are very efficient and organized. Always does what they say they are going to do. Old fashion integrity to sum it all up. Highly recommend their professional services to whom is in need. greg77059Trustindex verifies that the original source of the review is Google. Mondragon Mechanical is the most trustworthy and reliable HVAC company I’ve ever worked with. Guillermo and Kimberly are simply the best! This was my first time using them, after finding them through Trane’s official website, and I am beyond impressed with the entire experience from start to finish. My service technician was Guillermo, and let me just say -- don’t let his young age fool you. He is extremely knowledgeable, professional, and friendly. I’ve dealt with other HVAC companies over the years for my Trane system, but I can honestly say Guillermo is one of the best technicians I’ve ever met. He knows his stuff, explains things clearly, and truly cares about making sure the system is running perfectly. Thanks to him, my AC is now working like a charm! A special shoutout also goes to Kimberly in the office, who was equally wonderful. From the moment I called to schedule a service call, she was kind, helpful, and kept me informed every step of the way. I had asked for a 30-minute heads-up before the technician arrived, and Kimberly followed through perfectly with that, giving me Guillermo’s exact ETA this morning. Right on schedule -- something that’s rare these days! What stands out most about Mondragon Mechanical is their honesty and integrity. They truly put the customer first and can absolutely be trusted. That is a rare quality in today’s world, and it’s exactly why I will be calling them for all of my future HVAC needs. I’m already planning to sign up for their seasonal service package for ongoing tune-ups each year. Thank you, Mondragon Mechanical, and an extra thank-you to Guillermo and Kimberly for turning what could have been a stressful AC problem into such a positive experience. I’m a very happy customer and thrilled to have found a company I can finally trust! Lorenzo MunozTrustindex verifies that the original source of the review is Google. Amazing work, Guillermo (Memo) was the one that did maintenence very professional, clean work and organized and very nice and answered all my questions about my air conditioning... Mike AdkinsTrustindex verifies that the original source of the review is Google. Thanks for the efficient service call for my Goodman split unit heat pump. The service technicians did a good job making sure that my Goodman was in good running order. They also took the time to provide me with some technical information about the units that was to my benefit. Thanks, Mike Adkins Brandi WilliamsTrustindex verifies that the original source of the review is Google. Mondragon has always taken care of me. They have great prices and friendly staff. My technician, Bryan, was very knowledgeable and patient with all my questions. I’ve referred a couple people to them and both were very satisfied with Mondragon’s service. Syed KarimTrustindex verifies that the original source of the review is Google. I had a new carrier unit installed this week. Kimberly was really sweet and helpful throughout the process. She gave me a good price, answered all my questions. The guys who came to install were very thorough and willing to answer my questions. We passed Frisco city inspection today! Thank you Kimberly and your team! I will be recommending this company to everyone!! The process was very easy, unlike other companies I have had to deal with in the past! Ana MaldonadoTrustindex verifies that the original source of the review is Google. I purchased a whole new inside and outside unit last year. I’ve recently had issues with it not blowing as cold air as before, i had them come out to check on it and turns out, either they left the coolant low when installing or it has a leak.. mind you think is a whole new unit i paid $8,500. Now they said it’s not their fault and i have to pay an additional $360 to fix? this is ridiculous! Do not purchase here they leave things half done and then try to get more money to get it fixed. Graciela GuerraTrustindex verifies that the original source of the review is Google. I loved this company! They walk you thru it and make sure they explain everything to you and the installation was super fast and really nice workers! The prices are really good!!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more