Need a reliable plumber in Sango? Call Anderson Plumbing, Heating Air! Offering years of industry experience a Customer Satisfaction Guarantee..Bill Howe is the leader in high quality Sango plumbing repairs, maintenance, and installs. Contact us today for a free estimate!.Reviews of Courtesy Plumbing “I’ve received services from them twice same guys for both occasions, one with French accent and his sidekick , they’re the best!!.Sango Municipal Code SDMC ., requires that all buildings, prior to a change in property ownership, be certified as having water conserving plumbing .