Western Allied Corporation

Is this your business?
Verify your details, earn a verified badge, and start getting customer inquiries. Takes about a minute by phone.
Claim This Business FreeClaiming is free. Featured placement is optional, $99/mo.
About Western Allied Corporation
Western Allied Corporation operates as a mechanical contractor in Santa Fe Springs, California, specializing in commercial HVAC systems. The business holds a 4.7-star rating derived from 19 customer reviews, reflecting consistent service quality in the region. Since 1960, the company has delivered design-build HVAC solutions across Southern California, establishing itself as a longstanding presence in the commercial contracting sector. The contractor maintains union affiliations with Local 105 for sheet metal work and United Association Local 250 for piping, demonstrating formalized workforce credentials.
The contractor distinguishes itself through specialized prefabrication capabilities and advanced building automation expertise. Their piping division handles projects from 2-inch to 16-inch plus systems, while the controls team possesses over two decades of open-protocol experience in LonWorks, BACnet, and Modbus technologies. A notable operational characteristic is the ratio of degreed engineers to field technicians, which the company claims is the highest in Southern California. Service operations run around the clock, addressing commercial HVAC needs without stated limitations on project scale or complexity.
Customer feedback highlights specific service experiences. Lisa Harmon noted the contractor's comprehensive capabilities spanning design through custom ductwork to ongoing service, emphasizing a 60-year track record. Max Warner described the team as ahead of the curve in mechanical HVAC work, awarding a perfect score. Beatriz Andrade mentioned rapid service and friendly interactions, while Hugo Barrales specifically called out reliability and professionalism in his review. These accounts reference the contractor's ability to handle large-scale commercial work with documented consistency.
What Customers Say
Five of six reviewers awarded perfect scores, with specific praise for design-build capabilities, rapid service response, and technical expertise. The single lower rating references logistical matters rather than service quality concerns.
Working Hours
| Sunday | Closed |
| Monday | 7:30 AM–5 PM |
| Tuesday | 7:30 AM–5 PM |
| Wednesday | 7:30 AM–5 PM |
| Thursday | 7:30 AM–5 PM |
| Friday | 7:30 AM–5 PM |
| SaturdayToday | Closed |
Services
Design-Build HVAC Solutions
Comprehensive commercial HVAC system design and construction services delivering lasting value on every project.
Sheet Metal Fabrication
In-house custom ductwork fabrication performed by certified Local 105 union sheet metal workers.
Piping & Prefabrication
Expert pipe prefabrication and startup services for systems ranging from 2-inch to 16-inch plus diameters.
Building Automation Controls
Open-protocol expertise in LonWorks, BACnet, and Modbus systems for integrated building management.
Commercial HVAC Service
24/7 maintenance and emergency repair services for commercial heating and cooling systems.