(281) 630-1129

mjsairconditioning.com
mjsairconditioning.com
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      • AC & HEATING REPAIR
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      • Indoor Air Quality
    • Contact
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(281) 630-1129


  • Home
  • Services
    • AC & HEATING REPAIR
    • AC & HEATER INSTALLATION
    • AC Maintenance
    • Indoor Air Quality
  • Contact
  • BOOK NOW
  • About

HVAC Maintenance Services

Keep Your System Running Efficiently THROUGHOUT THE YEAR

Maintenance Inspection

Regular HVAC maintenance helps prevent costly breakdowns, improves energy efficiency, and extends the life of your system. Whether it’s your AC in the summer or your heater in the winter, our team makes sure everything is running at peak performance when you need it most.


What's included in our maintenance service:


  • Inspect all air filters, including media and whole-home systems, to ensure proper indoor air quality 
  • Inspect the blower wheel for buildup and performance issues 
  • Inspect and test the condensate drain line 
  • Inspect the outdoor condenser coil (if accessible) 
  • Visually check for refrigerant leaks 
  • Test thermostat operation and calibration 
  • Check refrigerant levels 
  • Measure return and supply air temperatures 
  • Verify proper temperature split (temperature drop across the system) 
  • Inspect disconnect box, wiring, and tighten any loose electrical connections 
  • Check operation of service valves 
  • Test and measure capacitor voltage and start components 
  • Measure compressor amperage 
  • Inspect contactors and relays 
  • Check compressor and fan motor current 
  • Measure suction line temperature and pressure 
  • Measure superheat and subcooling levels 
  • Measure discharge temperature and pressure 
  • Evaluate overall system condition and efficiency 
  • Perform visual inspection of air ducts 
  • Clean condenser coil with a professional water wash

WHY ROUTINE MAINTENANCE MATTERS

  • Prevent unexpected repairs 
  • Lower energy bills 
  • Improve indoor comfort and airflow 
  • Extend the life of your HVAC system 
  • Maintain manufacturer warranties


Stay Ahead of Costly Repairs

Small issues can turn into expensive problems if left unchecked. Our maintenance service helps catch problems early—saving you time, money, and stress down the road.

24/7 Emergency Service

We offer 24/7 emergency HVAC services to ensure that your home or business stays comfortable no matter what time of day or night.

BOOK HVAC MAINTENANCEHVAC REPAIR CALL US TODAY
  • Home
  • AC & HEATING REPAIR
  • AC & HEATER INSTALLATION
  • AC Maintenance
  • Indoor Air Quality
  • Contact
  • BOOK NOW

MJS AC & HEATING LLC

19407 Park Row Blvd. Katy, TX 77084

+1.2816301129

Copyright © 2026 MJS AC & HEATING LLC - All Rights Reserved.

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