What Our Clients Say

UMI Service has been terrific with a focus on customer service and response time.
Jay Momet
Director of Real Estate and Facilities


On behalf of Webcor Builders and the entire project team at The Infinity Towers Project, we would like to thank United Mechanical Inc. for helping us deliver another successful project to San Francisco.
Thomas Soohoo
Corporate Small Business Manager


It has been a pleasure to work with you (UMI) and I hold you in the highest regard.
Clint Simpson
Senior Superintendent

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Commercial / Industrial Plumbing

United Mechanical Plumbing, formally known as METRO PLUMBING, is a trusted name in all phases of commercial and industrial plumbing.  Since 1984, Metro Plumbing managed projects in Santa Clara, Oakland Alameda, Contra Costa, San Benito and Monterey counties.  Staffed by highly qualified, Union plumbers, our projects are carried out with the utmost care and professionalism.

Our commercial plumbers make intelligent decisions quickly and provide professional, courteous, and reliable service.  Years of combined experience in the plumbing and mechanical trades and the broad range of our knowledge enable us to respond to the particular needs of each client in the most effective way, regardless of job size.

METRO PLUMBING who is now United Mechanical is proud to list a few of our recent projects as testimony to our distinction as one of the finest plumbing companies in the Bay Area.

Auto Dealerships

Lexus of Serramonte - Stevens Creek Acura; Stevens Creek Volvo; Smythe European; Capitol Volvo; in the San Jose, Santa Clara area, Park Avenue Motors in Palo Alto, Allison BMW in Mountain View and Hayward Nissan and Fremont Toyota in the East Bay; Stevens Creek BMW and Magnus, Lexus of Fremont, South Bay Honda. 

Churches and Schools

Stanford University – Faculty Club, Congregations Shir Hadash, Cathedral of Faith, St. Francis of Assisi, St. Joseph School, Emanuel Baptist, First Unitarian in San Jose; River of Life Christian Church in Santa Clara County;  St. Josephs, Mountain View, St.  Zion Church of Praise in Fremont, Temple Emanuel in San Jose.

Restaurants and Retail

The complete remodel of the Jose Theater into the new San Jose Improv and Restaurant; McCormick & Schmicks in the Fairmont Annex, San Jose; Stacks in Campbell; CasCal and Scotts Cantankerous Fish in Mountain View; Pietra Santa winery in Hollister and CloLaChance winery

Industrial Building Shells and Tenant Improvements

Palo Alto Golf & Country Club, San Jose Country Club, Ericcson Company, GSA Federal Building, Hewlett Packard Pavillion, Berryessa Industrial Park, Cadence Campus, River Corp complex (Ricochet) at Julian and 87, PeopleSoft campus in Pleasanton, Tri-Valley Business Campus in Livermore, new IDT plant in Salinas.

Medical Facilities

Medimunne, O’Conner Medical Building, San Jose, ValleyCare Health Center and Lifestyle RX in Livermore, Community Psychiatric in San Mateo,  Hazel Hawkins Hospital, Hollister and Tiburcio Vasquez Health Center in Hayward; Monterey Medical building in Monterey and Los Gatos Medical Office buildings.

Process Piping

Bloom Energy, Mt. View, Coapt Systems, Palo Alto, Nextest Systems, San Jose CA, 3 Par Data in Fremont, Daystar Technologies, San Jose, Benteck, San Jose, LSI Corporation,  Milpitas, General Dynamics in Santa Clara, EXAR, Fremont, Medimune, Mt. View, Intuitive Surgical, Sunnyvale and Crystal Technologies in Sunnyvale.