Facilities Service Group

Commercial HVAC and plumbing emergency repair and scheduled maintenance services for Central and South Texas.

24/7 emergency maintenance and repair services for mechanical systems

24/7 Emergency Mechanical Systems Services

Can you afford system downtime? When things do go wrong, we are there to fix it with our 24-hour emergency services.

Our emergency mechanical system service includes:

  • 24 hours a day, 7 days a week, even on holidays

  • Assigned technical project manager for direct contact

  • Guaranteed 2-hour response time

Need emergency service? Call us now at (210) 824-9461.

signing maintenance agreement for mechanical systems

Service & Maintenance Agreements

From seasonal equipment checkups to fully-customized maintenance programs, we offer a wide variety of contract services to keep your HVAC, plumbing and mechanical systems running smoothly for a longer period at its peak efficiency.

Our technicians have the experience and knowledge to determine a system defect in the initial stages and fix it before it leads to expensive repairs.

Inspections and Certifications We Offer:

  • Mechanical system audits and reports

  • Annual backflow prevention device inspections and certifications

  • Annual gas inspections and certifications

  • Fire safety testing for fire and smoke dampers

Need Emergency Commercial HVAC or Plumbing Services or Repair?

What We Service

Maintain and service your existing commercial HVAC units and systems.

Our certified technicians can confidently service a variety of complex commercial HVAC and plumbing systems.

  • Commercial plumbing systems

  • Commercial chillers

  • Commercial VAV systems

  • Water and steam boilers

  • Food service equipment

  • Vacuum systems

  • Built-up air handler systems

  • Dust collection systems

  • Cooling towers

  • Medical gas systems

  • Water heaters
    (tank and instantaneous)

  • Fuel gas systems

  • Rooftop units

  • Backflow prevention devices

field service group maintenance and repair

Why Work with Mueller & Wilson for Commercial Plumbing & HVAC Services?

With a history dating back to 1949, MWI has a strong record of serving businesses in the Central and South Texas region, providing repair and maintenance services on commercial mechanical systems.

Our project managers and certified technicians have top industry experience and thrive on troubleshooting complex issues.

Learn more about who we are and what drives us.

Want More Information?

Learn more about our 24/7 system maintenance program, or contact us to get a quote for your next project.