HVAC design-build

United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout Northern California. Founded in 2003, it serves general contractors, developers, owners, and property managers in the Bay Area and ranks among the top mechanical contractors in the region.

24/7 emergency serviceboiler serviceDDC controlseddy current testingEnergy Optimizationfabricationinstallationlarge tonnage chiller servicelaser alignmentplumbingpreventive maintenanceproject managementrepairretrofitre-tubingvariable frequency drive retrofitsVibration analysis

Controlled Air, Inc. is a commercial HVAC and energy solutions provider serving commercial and industrial facilities in Connecticut, Massachusetts, and Rhode Island. Founded in 1980, the company offers design-build HVAC, building automation and controls, combined heat and power, gas heat pumps, microgrids, and energy efficiency services, along with service and preventative maintenance.

building automation and controlscombined heat and powerenergy evaluationsmicrogridspreventative maintenancerefrigeration and gas pipingsheet metal fabrication

Demco, Inc. is a full-service commercial HVAC and metal specialties contractor based in Melrose Park, Illinois, serving Chicago and its suburbs since 1985. The company provides HVAC installations, repairs, design-build solutions, maintenance contracts, and certified fire and smoke damper inspections, along with specialty products such as trash compactors, trash and linen chutes, tenant storage lockers, wire mesh partitions, steel lockers, bicycle racks, mailboxes, and folding gates. It is a certified Women's Business Enterprise and a union member of SMAR

fire and smoke damper inspectioninstallationmaintenancerepairssheet metal fabrication

DWR Construction Inc. is a Service Disabled Veteran Owned Small Business and one of the leading private critical systems, network, AV and SCIF building contractors in the USA. The company has 22 years of U.S. Government experience and provides secure facility design build services.

AV design and installationcabling installationelectrical distributionemergency power backup systemsEPSS consulting, design & buildfiber optic networksFire Suppressionflooringframingground-up constructionICD 705 design buildinterior worksteel workstructural work