Professional HVAC Services

AC repair, maintenance, and installation. Our highly skilled technicians will arrive quickly and complete your project to the highest standards and customer satisfaction.

Commercial HVAC Services

From minor repairs to larger scale projects requiring an experienced HVAC Contractor, Dragon A/C & Heating can handle it all. We offer quality work at fair and competitive prices.

  • Commercial Service Call

    Repair and inspection of your HVAC system. Parts, components, systems larger than 5 tons, or visits longer than one hour may incur an extra cost. Fuel surcharge may apply.

    $85, plus parts.

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  • Commercial Maintenance

    Multi-point preventative service cleans and protects your equipment, keeps utility bills lower, and extends its service life. We also inspect and replace parts intended to wear out including belts, filters, and UV bulbs. We offer bi-annual or quarterly plans. 

    Starting at $125 per system. Pricing varies depending on number of units and type/tonnage. See below for more information.

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  • Warranty Service

    We service all brands. We will confirm your warranty coverage and complete the work to get your system operating. Warranty fee may apply for certain manufacturers. Labor and any parts or components not covered under warranty will be extra.

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  • Commercial HVAC Design

    New construction, system replacement, or remodel. We will work with your specs to design and quote your new HVAC and duct system and offer options to meet your budget.

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  • Free System Estimate

    Quick, easy, and emailed to you. New construction, remodel, or second opinions for your new system install.

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  • Air Purification Addition

    Add a filtration device to your existing duct system. We install UV lights, media filters, and in-duct air purifiers.

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Trust Dragon A/C & Heating when you're looking for an experienced, licensed HVAC Contractor for your next project. We work with you every step in the process to ensure you stay on schedule and on budget.

Commercial HVAC

 Maintenance Program

Quarterly or bi-annual service to keep your HVAC system operating when you need it most.

Maintenance At-a-Glance

  • Commercial Pricing

    Plans start at $125 a year. Maintenance pricing varies depending on the number of units, type, and tonnage. Parts or filters cost extra.

  • Commercial Spring-Summer Service

    A multi-point inspection of your a/c system ensures proper operation for the hot Texas summer. We also replace parts intended to wear out including belts, filters, and UV bulbs, clean the condenser, and inspect the coil for cleaning.


    See below for complete maintenance service details.

  • Commercial Fall-Winter Service

    A multi-point inspection of your heating system ensures proper and safe operation for when temps cool down. We also replace parts intended to wear out including belts, filters, and UV bulbs, inspect air quality systems, and check for leaks.


    See below for complete maintenance service details.

Detailed Service Checklist

Maintenance Details

  • Testing of the a/c unit in cool mode for operation.
  • Inspect & replace belts: for belt-driven systems, this component is designed to wear out and regular inspection ensures safe operation and prevents costly repairs later. 
  • Clearing out drain lines: flushing any blockages prevents backups into the drain pan and possible water damage.
  • Anti-algae treatment: placement of tablets in the drain pan prevents algae growth which could cause drain line blockages.
  • Inspect & replace air quality media: changing return filters if needed, changing media filters when needed for media cabinets, and changing bulbs for UV systems. (Filters or bulbs cost extra).
  • Cleaning of the outside unit: rinsing off the unit and removing any obstructions ensures proper airflow for operation.
  • Inspect thermostat operation: ensuring proper programming, system response, function, and addressing any error codes.
  • Inspect evaporator coil for cleaning: for a/c systems where accessible, to identify cleaning needs for proper operation and indoor air quality. (Coil cleaning costs extra).
  • Test & adjust refrigerant charge: recording pressures can identify a leak or diagnose a system issue. (Refrigerant costs extra).
  • Test electrical components: recording the amprerages can identify capacitor or startup issues.

Maintenance Details

  • Testing of the heating system for operation.
  • Inspect & replace belts: for belt-driven systems, this component is designed to wear out and regular inspection ensures safe operation and prevents costly repairs later. 
  • Test heat strips: for electric heaters or heat pump systems w/ heat kits, recording amperage to ensure operation.
  • Test blower motor: recording amperage current and inspecting function to ensure proper operation.
  • Inspection of safety devices: for gas furnaces this ensures safe operation and con identify any leaks.
  • Inspection of flame: inspecting the roll out color ensures safe operation.
  • Heat exchanger: visual and operational inspection will determine proper operation.
  • Inspect air quality systems: changing return filters if needed, changing media filters when needed for media cabinets, changing bulbs for UV systems. (Filters or bulbs cost extra).

Click here for maintenance agreement terms & conditions.