Plumbing Resources & Local Guides
How-to guides and the local rules that matter in Sonoma and Marin County, from sewer lateral inspections to permits.
Marin County Sewer Lateral Inspections: Point of Sale Rules and RepairsSelling in Marin? Ross Valley Sanitary District and Sanitary District No. 5 require sewer lateral inspection at sale. CNTRline handles it. (707) 308-5599.Sonoma County Plumbing Permits: What Needs One, Who Issues It, and What It CostsWater heaters, repipes, and gas lines need permits in Sonoma County. See which office handles yours and what it costs. CNTRline pulls permits. (707) 308-5599.How to Shut Off Your Water Main in an EmergencyBurst pipe? Find your main water shutoff in the garage, crawlspace, or meter box and turn it clockwise. CNTRline answers 7 days a week. (707) 308-5599.Plumbing After a Wildfire: Water, Gas, and RebuildingHeat can make plastic water pipe leach benzene even when the house survives. What to test, how gas comes back on, and what a rebuild needs. Call (707) 308-5599.Eichler Slab Leaks: Is It the Radiant Heat or the Water Line?Two systems run through an Eichler slab. A closed fill valve and a magnet tell you which one is leaking and whether it can be fixed. Call (707) 308-5599.
Free Homeowner's Guide
The Sonoma & Marin Homeowner’s Plumbing Guide
Spot problems before they flood, find your shutoffs, and see real 2026 cost ranges. A free PDF, straight from a licensed local plumber.
- 5 signs to call before it floods
- Where your three shutoffs are
- Real 2026 cost ranges for the big jobs