McCarthy

McCarthy Building Companies is one of the nation’s oldest and largest commercial construction companies. Founded in 1864, the firm is currently the 12th largest builder in America (Engineering News-Record, May 2015). Throughout all phases of a project, from early integrated design phase services, through construction and after completion, McCarthy builders utilize industry-leading construction techniques and the most sophisticated technology tools to deliver the highest quality, jobsite safety and ultimately, the best value.

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Our Unique Value

Xcel Mechanical Systems will make your next project easier to manage, and your client's physical plant more energy efficient and cost-effective to own. We have an excellent safety record and talented team of engineers, project managers and more than 200 trained and certified field technicians ready to help. We are licensed, bonded and insured, and can scale quickly to execute projects of any size.

Xcel Mechanical Joins LAWA and MATOC Partners at 2025 Aviation Career Day Xcel Mechanical Systems Engages Local HireLAX Graduates to Work on Future LAX Projects Xcel Mechanical Participates in Safety Stand-Down at Cedars-Sinai Medical Center Xcel Mechanical Participates in Safety Stand-Down at 29 Palms Job Site Xcel Mechanical Connects with Future Industry Leaders at CPMCA’s Cal Poly Pomona Industry Networking Event Unique Campus Expertise Defines Xcel Mechanical’s Education Market Strategy Xcel Mechanical Working on Mission-Critical Aerospace Projects with Nation’s Top Defense Contractors Thriving in Acute Patient Care Environments Through Campus Command and Collaboration Xcel Mechanical Systems Wins Third MCAA/CNA National Safety Excellence Award in Five Years Engineering Excellence Fuels Aerospace Design-Build Capability Xcel Mechanical Recognized as “Procore Groundbreaker Award Finalist”S.A.F.E. Jobsite Recognition: UCLA Franz Tower Xcel’s Performance at LAX Lands Another Big Win Just in Time! Meet our Safety Techs Expertise Helps Drive Strategic LAX Projects Project Delivered: Large K-12 HVAC Modernization Project Complete Our Field Leaders Get It – Leadership by Example to Get the Jobs Done Xcel Mechanical Systems Recognized as Safest Mechanical and Plumbing Contractor in the U.S.Company’s Top Safety Officer Attends National Safety Director’s Conference Xcel Mechanical Employees Bring Holiday Cheer to Neighborhood Kids Safety First: Xcel Mechanical Posts Record Low EMR Safety Award: Xcel Mechanical Nets Fifth Cal/OSHA Golden Gate Recognition Project Update: UCLA Luskin Conference Center Achieves LEED Platinum Certification Xcel Mechanical Lands Strategic Aerospace Service & Maintenance Contract Xcel Mechanical Begins Work on Cal Poly Pomona’s New Student Services Building Xcel Mechanical’s Safety Program Gains Statewide and National Recognition Time to Recognize! Meet Our “10-Year Club”Xcel Mechanical Project Team Honored by General Contracting Partner PCL Construction Project Delivered: New Qantas LAX Hangar the Largest of its Kind in North America Xcel Mechanical Named 6th-largest Mechanical and Plumbing Contractor in California

XCEL Mechanical Systems

HVAC. ENGINEERING. PLUMBING & PIPING. SERVICE

McCarthy

Our Unique Value