Plumber in Sausalito

What the first visit covers

A good first visit is mostly measurement, taken before anyone says a word about parts.

Static pressure at a hose bib. Pressure follows elevation, so two houses on the same hillside street live in different worlds. A home sitting low relative to its supply runs hard, and a hard-running house eats supply lines, fill valves, cartridges, and relief valves no matter how many parts get swapped. High gauge, and a pressure-reducing valve is the real repair. Low gauge on a high lot usually traces to a partly closed valve or a corroded galvanized main.

A meter test for hidden loss. Every fixture off, then watch the dial. Movement with nothing running means a leak, and with a long service line from the street it is often outside the house and under hardscape.

Piping material, everywhere we can see it. Galvanized steel supply is common in the older parts of town and fails from the inside out: the bore rusts closed, flow drops at the furthest fixture, and hot water browns first because heat accelerates the reaction. Cast iron drain piping scales shut the same way. Either finding turns a repair into a plan, since a spot fix only relocates the next failure.

The water heater, in detail. Age off the serial, condition of the flue and draft hood, whether the tank is braced, where the relief line discharges, whether an expansion tank exists. Marine air is hard on galvanized flue sections and on the jacket of a heater in a vented under-house space, and we find corrosion here that a valley house of the same age would not show.

Drain behavior under load. We run fixtures together and listen for what gurgles, because a venting problem and a partial blockage look identical to a homeowner and are different repairs.

Where the main shutoff is, and whether it turns. Plenty of them here are original, seized, and buried in ivy, and the day you need one is a bad day to learn it does not move. We show you yours.

The sizing that decides the job

Once we know what the house is, we size the fix. This is the step homeowners get sold past most often.

Water heaters get sized on first-hour rating, not on gallons. Two people showering back to back have a different demand curve than a household running the dishwasher, washer, and a tub at once, and a tank picked off the label often disappoints the same way the old one did. Where a heat pump unit is on the table, three constraints come first: a 240-volt circuit with panel capacity behind it, enough surrounding air to draw heat from, and somewhere for condensate to go. A sealed interior closet will underperform where a vented under-house space or roomy garage does well. That is a site question, not a brand question, which is why this conversation often becomes a panel upgrade conversation before it becomes an order. More on our water heater page.

Tankless gets sized on the gas side before the water side. They draw far more gas at peak than the tank they replace, so the line and meter are the first calculation, not the last. On a hillside house with a long run from the meter, an upsized or dedicated line is frequently part of the true scope, and a bid that never mentions it has not looked. Venting is the second constraint, since a sealed vent path has to be found in a house built before anyone imagined the appliance. The tankless page covers the trade-offs.

Repipes get sized by fixture count and simultaneous demand, then routed. Routing is the local part: on a multi-level hillside home the question is which walls, floors, and exterior chases we can use without gutting finished space, and that moves the price further than the pipe does.

Drains and sewers get a camera before a recommendation. We locate the line, record the run, and show you the footage. Roots, a belly, an offset joint, and a grease-scaled pipe all clear the same way for a week, and only one stays clear.

The permit, and which agency it goes to

This is where Sausalito differs most from its neighbors, and there are two moving parts.

The building permit. Inside the city limits, plumbing permits go to the City of Sausalito Building Division and are submitted electronically through the city's online permitting portal. A Sausalito mailing address does not always mean a property sits inside those limits. Where it does not, the authority is the Marin County Community Development Agency, and filing with the wrong one costs you the calendar. The city also publishes a retroactive permit path for work done without one.

The sewer lateral, which is its own animal. The collection system serving the city is owned and operated by the Sausalito-Marin City Sanitary District rather than by the city. The district requires a compliance certificate for private laterals in Sausalito, and the city's sewer lateral inspection page lists the triggers: transfer of title on a resale, a change in customer, a remodel or construction project above a set valuation threshold, and a change in use. That last pair matters. A remodel with nothing to do with the sewer can still pull your lateral into scope, and a line that fails its test joins the timeline whether or not it was in the plan. We camera it early on any job that could trip the requirement, so the finding arrives during planning instead of during escrow. Our sewer repair page goes deeper on repair versus replacement.

Water heaters must be braced, anchored, or strapped. California Health and Safety Code section 19211 applies that to "all new and replacement water heaters, and all existing residential water heaters," and defines a water heater as a unit "with a capacity of not more than 120 gallons." It is among the first things an inspector looks at.

Replacements must meet Title 24 energy requirements. California's 2025 Building Energy Efficiency Standards took effect January 1, 2026, per the California Energy Commission. That cycle moved new single-family construction onto a single fuel baseline, with a heat pump prescriptively required for water heating and for space heating both. It governs new construction. Nobody should stretch it into a claim about the house you already live in.

Sausalito sits fully inside the Bay Area Air Quality Management District, so the zero-NOx appliance rules apply. None of that bans the gas heater already in your house. It does mean a buyer in 2026 should ask what applies on the installation date.

The incentive check, before the equipment order

Rebate programs here change faster than the equipment, so eligibility gets confirmed before the order goes in.

Marin's community choice electricity provider is MCE, which means the Sonoma Clean Power water heating rebates you may have read about do not reach a Sausalito address. That trips people up constantly, since both get covered in the same regional press.

Inspection, and the tests we run first

We do not cover work an inspector needs to see. That is where cheap bids get expensive.

On a water heater, the inspector looks at seismic bracing, the relief valve and its discharge, combustion air and venting on a gas unit, the circuit and disconnect on a heat pump unit, expansion control, and connections. On a repipe: pressure test, support spacing, materials, penetrations of fire-rated assemblies. On a lateral, the district's testing requirement governs and the certificate is the deliverable. Inspections inside the city limits are scheduled through the city's building inspection process.

Before the inspector arrives we run our own tests, so the visit confirms rather than surprises. Drain and sewer work gets re-cameraed after the repair and you keep the footage. Supply holds pressure, gas gets tested, and anything that fails, fails on our time.

What keeps it working after we leave

Water heaters. Flush the tank annually and check the anode every few years. The anode is a sacrificial rod that corrodes so the tank lining does not, and a tank that outlives its anode is on borrowed time. On a tankless unit, annual descaling is a warranty condition, not optional upkeep.

Pressure. Re-gauge every year or two. Regulators fail slowly and drift high, and the first symptom is usually a run of small fixture failures people blame on cheap parts.

Drains. Kitchen grease causes more of the clogs we return for than anything else. On homes with long or shallow laterals we suggest a scheduled camera check rather than waiting for a backup, and the drain cleaning page covers when cabling beats hydro jetting.

Filtration. Marin Water disinfects with chloramines, per its water quality page. About 75 percent of supply "originates from rainfall on the Mount Tamalpais Watershed and in the hills of west Marin," with the balance contracted from the Sonoma County Water Agency's Russian River supply, per Marin Water. Practically: a filter specified for free chlorine is not the same product as one specified for chloramine, and buying the wrong one is a quiet waste of money.

Power shutoffs. Hillside Sausalito is exposed to PG&E's Public Safety Power Shutoff program, which homeowners file under electrical only. It is a plumbing issue too: tankless units, heat pump water heaters, and any modern gas heater with electronic ignition or a powered vent stop when the power does, and ejector and sump pumps stop with them.

The parts of town we work in

We work the hillside, the waterfront, and Old Town, all of it served from our Petaluma headquarters. The older streets give us galvanized supply, cast iron drains, tight utility spaces, and access problems. Remodeled homes give us better materials and worse documentation, since plenty of past work left no record. Waterfront properties give us shallow runs, marine corrosion, and the easiest working conditions in town. The full matrix sits on our Sausalito service area page, the regional view on our Marin County plumbing page.

How to choose a plumber for this work in Sausalito

Four questions separate the bids, and none are about price.

Who pulls the permit, and in whose name? A licensed contractor pulls it under their own license. One who asks you to pull an owner-builder permit is moving liability onto you.

What did they do to check the lateral? Given the district's certificate triggers, a plumber who priced a remodel-adjacent job without looking at that line left a large unknown in your project.

What did they measure? Static pressure, gas capacity, panel capacity, drain slope. An estimate with no number attached to any of those is a guess on letterhead.

What do they hand you at the end? Camera footage, a passing test, the permit final, a written scope. All four should be routine, not a special request.

What North Bay homeowners say

Two of the reviews behind our rating, in the customers' own words.

Plumbing across Sausalito and Marin County

More from us here: water heaters, tankless, drain cleaning, sewer repair, panel upgrades, the full Sausalito matrix, and plumbing across Marin County. Nearby: Mill Valley and Corte Madera.