Southwest Mechanical

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About Southwest Mechanical
Southwest Mechanical operates as a licensed general contractor based in Covina, California, serving the broader Southern California region. The company holds California State License #761417 and has accumulated 15 years of operational experience in the area. With a rating of 4.9 stars derived from 28 customer reviews, the business demonstrates consistent service quality across its client base. The contractor maintains standard office hours Monday through Friday from 7 AM to 5 PM, while offering around-the-clock emergency service for urgent situations requiring immediate attention.
What distinguishes Southwest Mechanical from regional competitors is its breadth of in-house capabilities across multiple building systems. The company designs, builds, and services HVAC installations, plumbing networks, boiler and hot water systems, electrical infrastructure, and energy management solutions without relying on subcontractors for core trades. This integrated approach allows project coordination under a single point of contact, which property owners and management companies particularly value. The business operates as a vendor-approved service provider for commercial clients, indicating established relationships with property management firms throughout Southern California.
Customer reviews reference specific technicians by name, with Karissa Hickman appearing repeatedly for her communication skills and project coordination. One reviewer describes an experience during an extreme heat wave when the company dispatched service the same day despite high demand, with a team member arriving quickly to diagnose issues and order necessary parts. Another reviewer notes that the technician completed installation the following day once parts arrived. These accounts illustrate the company's approach to time-sensitive repairs and ongoing maintenance for both residential and commercial properties.
What Customers Say
Four of five detailed reviews specifically mention Karissa or team members by name, with all five-star ratings highlighting communication quality and technical skill. Positive feedback emphasizes problem-solving ability and efficient project updates, while one reviewer briefly references pricing as a consideration without detailed elaboration.
Working Hours
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| SaturdayToday | Closed |
Services
HVAC Installation & Repair
Complete heating and cooling system design, installation, maintenance, and emergency repairs for residential and commercial properties.
Plumbing Services
Full plumbing system installation, diagnostics, and repair including water heaters, pipe networks, and fixture connections.
Boiler & Hot Water Systems
Specialized boiler installation, maintenance, and hot water system services for commercial and residential applications.
Electrical & Energy Management
Electrical infrastructure work and energy management system design to optimize building performance and reduce operational costs.
General Contracting
Project coordination across multiple trades with single-point accountability, serving property owners and management companies.