W.E. O’Neil

Established in 1925, W.E. O’Neil Construction Company has flourished into an award winning and nationally ranked industry leader. Our foundation is rooted in our people and our commitment to quality, integrity and responsiveness to our clients’ needs. Through four generations of O’Neil family leadership and 90 years of experience, the O’Neil name has been synonymous with quality professional construction services.

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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.

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 Communication, Collaboration and Hard Work.Staying the Course Proves Essential for Xcel Xcel’s Performance at LAX Lands Another Big Win Just in Time! Meet our Safety Techs OSHA 10 and OSHA 30 Training Certifications Critical at LAX New Shop Rules A Sign of Things to Come Business Continuity – When it Matters Most UA & MCAA – “Essential, but not Dispensable”Xcel Mechanical’s Safe Jobsite Guidelines Updated CDC Updates Return-to-Work Guidelines for Essential Workforce Xcel’s COVID-19 Employee Resource Page Xcel Mechanical’s Response to COVID-19 Continues to Build COVID-19 Task Force Works to Stay in Front Xcel Mechanical’s Response to COVID-19 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.We’re hiring! Project Manager Needed for HVAC, Plumbing and Piping Projects We’re Hiring! Safety Representative Needed for Palmdale Jobsites 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

XCEL Mechanical Systems

HVAC. ENGINEERING. PLUMBING & PIPING. SERVICE

W.E. O’Neil

Our Unique Value