We're Fire Detection Unlimited, Inc. (FDU), a fire alarm construction, service, and distribution company located in Concord, California. We service the needs of general and electrical contractors, building and electrical engineers, and building owners in Greater San Francisco Bay. The high quality services you can trust us to deliver on any sized-project
Brian Bruckner —
Paid for a service, that did not get done. Hired a new company to fix what FDU did. Trying to get a hold of someone was impossible
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