San Ramon Gas Companies 2010 Crow Canyon Place, Suite 100 MB Services has consistently and safely installed more than 20,000 automatic gas shut-off valves on meters throughout California. With years of dedication, study, and attention to detail it has helped them develop and perfect multi-step systems that insure a perfect installation every time. MB Services is also the largest online wholesaler of automatic gas shutoff valves. San Ramon CA Gas Companies MB Services www.turnoffgas.com gas shut off valve excess flow valves natural gas valves earthquake gas shut off valve gas leak detector gas shut off valve excess flow valves natural gas valves earthquake gas shut off valve gas leak detector Business Reviews MB Services Testimonials