# Mueller & Wilson, Inc. — Full AI Context
> Mueller & Wilson, Inc. (MWI) is a licensed commercial and industrial mechanical contracting company headquartered in San Antonio, Texas. Established in 1949, MWI has over 75 years of experience providing HVAC, plumbing, sheet metal fabrication, and facilities maintenance services to commercial, industrial, and institutional clients across Central and South Texas — from Austin to the Rio Grande Valley.
HVAC License: TACLA85102C | Plumbing License: M-46422
Phone: (210) 824-9461 | Fax: (210) 824-6577
Address: 12747 Cimarron Path, San Antonio, TX 78249
Hours: Monday–Friday, 8:00 AM–5:00 PM | 24/7 emergency service available
Website: https://www.mwiusa.com
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## Company Overview
Mueller & Wilson, Inc. is a San Antonio-based mechanical contractor serving the commercial and industrial sectors. The company was founded in 1949 and has built its reputation on four core service lines: mechanical contracting, plumbing and HVAC, facilities maintenance, and custom sheet metal fabrication.
MWI's clients include major regional enterprises such as JW Marriott San Antonio Hill Country Resort, Methodist Stone Oak Hospital, and CBRE/JP Morgan Chase. The company operates across four industry verticals — healthcare, manufacturing, hospitality, and corporate facilities — and is capable of handling projects from new construction to emergency repair.
Mission: To be a trusted resource to our clients, exceeding their expectations through prompt and reliable work, flexible engagements, and quality guaranteed.
Core Values: Integrity, Technical Excellence, Passion, Teamwork, Craftsmanship, Trusted Partner, Personal Service.
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## Services
### Mechanical Contracting
[https://www.mwiusa.com/mechanical-contracting](https://www.mwiusa.com/mechanical-contracting)
MWI provides full-scope commercial and industrial mechanical contracting services including the fabrication, installation, maintenance, and repair of mechanical systems. Service scope includes:
- HVAC system design, installation, and commissioning
- Plumbing and piping systems for commercial and industrial facilities
- Construction management for mechanical scopes — on-time, on-budget project delivery
- New construction and renovation projects of all sizes
- Emergency repairs and scheduled maintenance
- Pipe spooling and specialty piping for potable, sanitary, and stormwater systems
MWI's project managers and field technicians are experienced in identifying best-fit solutions for complex mechanical scopes. The company serves as a trusted mechanical subcontractor to general contractors, construction managers, and directly to facility owners.
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### Plumbing & HVAC
[https://www.mwiusa.com/plumbing-and-hvac](https://www.mwiusa.com/plumbing-and-hvac)
Certified plumbing, heating, cooling, ventilation, and refrigeration services for commercial and industrial clients. Specific capabilities include:
- Commercial HVAC installation, service, and maintenance
- High-efficiency and low-profile HVAC systems
- Filtration systems for manufacturing environments
- Commercial kitchen hood, fan, and grease duct installation
- Backflow preventer installation, testing, and certification
- Commercial plumbing fixtures (bathrooms, kitchens, utility rooms)
- Drain cleaning and jetting; sewer lines and lift stations
- Commercial water heater and boiler installation and service
- 24/7 emergency repair — after-hours calls routed to emergency line
- Refrigeration installation and service
All work is performed by licensed technicians using high-quality products and parts.
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### Facilities Service Group
[https://www.mwiusa.com/facilities-service-group](https://www.mwiusa.com/facilities-service-group)
Ongoing maintenance and repair contracts for commercial mechanical systems across Central and South Texas. MWI's Facilities Service Group provides:
- Preventive maintenance contracts for HVAC, plumbing, and mechanical systems
- Reactive service and emergency repair — 24/7 availability
- Scheduled maintenance for complex commercial and industrial systems
- Kitchen equipment service and maintenance
- Drain cleaning and jetting
- Certified technicians with experience on a wide range of commercial systems
MWI has a history dating back to 1949 serving businesses in the Central and South Texas region with repair and maintenance services.
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### Sheet Metal Fabrication
[https://www.mwiusa.com/sheet-metal-fabrication](https://www.mwiusa.com/sheet-metal-fabrication)
MWI operates an in-house sheet metal fabrication facility equipped with modern machinery capable of producing both standard and highly custom metal components. Capabilities include:
- Standard and specialty ductwork fabrication
- Specialty welded duct systems
- Fiberglass-reinforced plastic (FRP) duct systems
- Pipe spooling and custom piping fittings
- Safety ladders and catwalks
- Custom skid fabrication
- Machine shop and certified welding services
- Scale: Projects from 1.4 million pounds of ductwork down to single custom components (e.g., computer terminal covers)
Notable completed project: Outside air duct installation at Guadalupe Regional Medical Center in Seguin, TX.
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## Industries Served
### Healthcare
[https://www.mwiusa.com/healthcare](https://www.mwiusa.com/healthcare)
MWI provides mechanical contracting services for hospitals, medical office buildings, clinics, and healthcare facilities. Healthcare-specific experience includes:
- HVAC systems designed and installed per ASHRAE HVAC Design Guide for Hospitals and Clinics
- Replacement of freeze-damaged chilled water coils (coordinated with facilities to minimize downtime)
- Complete buildout of ICU rooms in shell spaces
- Afterhours and weekend work to minimize disruption to patient care
- Energy-efficient systems that address the fact that reheating is often the largest single energy-consuming process in healthcare facilities
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### Manufacturing
[https://www.mwiusa.com/manufacturing](https://www.mwiusa.com/manufacturing)
MWI specializes in the heavy industrial market with experience across power, petrochemical, industrial gases, telecom, food and beverage, and general manufacturing. Capabilities include:
- Turnkey mechanical solutions for manufacturing facilities
- Plant expansions with live-operation coordination (plant operations maintained throughout)
- Renovation of existing manufacturing lines (e.g., lead acid battery manufacturing line renovation and plant expansion)
- Industrial HVAC, plumbing, and piping
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### Hospitality
[https://www.mwiusa.com/hospitality](https://www.mwiusa.com/hospitality)
MWI provides HVAC and plumbing services for hotels, resorts, and event venues. Cooling and heating represent approximately 40–80% of total building energy use in hospitality facilities. MWI's 75 years of experience in mechanical services enables seamless HVAC, heating, and plumbing delivery for guest comfort. Named client: JW Marriott San Antonio Hill Country Resort (Director of Engineering: Steve R. McGuire).
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### Corporate
[https://www.mwiusa.com/corporate](https://www.mwiusa.com/corporate)
Single-vendor commercial HVAC and plumbing solutions for corporate office and security-critical facilities. MWI's capital equipment investment ensures tools and personnel are available for any mechanical project. Notable project: redundant HVAC system construction for a 24-hour security operations command center. Named client: CBRE / JP Morgan Chase (Senior Facility Manager: Romel White).
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## Service Area
[https://www.mwiusa.com/service-area](https://www.mwiusa.com/service-area)
MWI serves commercial and industrial clients across Central and South Texas, including:
- San Antonio metropolitan area (primary service hub)
- Austin and surrounding Central Texas region
- Rio Grande Valley
- Seguin, New Braunfels, and other South/Central Texas communities
MWI is headquartered at 12747 Cimarron Path, San Antonio, TX 78249.
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## Associations & Certifications
MWI is a member of the following industry organizations:
- Mechanical Contractors Association of America (MCAA)
- United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry (UA)
- Mechanical and Sheet Metal Contractors Association of San Antonio
- Sheet Metal and Air Conditioning Contractors' National Association (SMACNA)
- Sheet Metal Workers International Association (SMWIA)
- Testing, Adjusting and Balancing Bureau (TABB) — Certified
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## Client Testimonials
Steve R. McGuire, Director of Engineering, JW Marriott San Antonio Hill Country
Services provided: Preventive & Reactive Events/Maintenance, Contracted Project Renovations
Ronni Bishop, Director of Facilities Management, Methodist Stone Oak
Services provided: HVAC, Plumbing, Maintenance, Equipment Installation
Romel White, Senior Facility Manager, CBRE / JP Morgan Chase
Services provided: Backflow Preventer Testing, Ductwork/Specialty Metal Fabrication, Drain Cleaning/Jetting, HVAC Installation/Service/Maintenance, Kitchen Equipment Service/Maintenance, Plumbing System Installation/Service/Maintenance
Flor Garcia, Alliance Contractor/Project Manager, Beck
Services provided: Mechanical contracting
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## Contact & Request a Consultation
[https://www.mwiusa.com/contact-us](https://www.mwiusa.com/contact-us)
Phone: (210) 824-9461
Address: 12747 Cimarron Path, San Antonio, TX 78249
Hours: Monday–Friday, 8:00 AM–5:00 PM | Saturday–Sunday: Closed
LinkedIn: https://www.linkedin.com/company/mueller-wilson-inc/
To request a consultation for a new project, use the contact form at https://www.mwiusa.com/contact-us.
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## Careers
[https://www.mwiusa.com/careers](https://www.mwiusa.com/careers)
MWI is a growing mechanical contractor seeking skilled technicians, project managers, and apprentices in the San Antonio and Central Texas area.
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## Safety
[https://www.mwiusa.com/safety](https://www.mwiusa.com/safety)
MWI maintains a strong jobsite safety record and is committed to safety-first practices on every project and service call.
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Last updated: June 2026. Content sourced from mwiusa.com. For the most current information, visit https://www.mwiusa.com or call (210) 824-9461.