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Petaluma · Sonoma County · Licensed C-36
Plumber in Petaluma — fast, honest, and local since 2007.
Simeone Plumbing is your go-to plumber across Petaluma, from the West Side’s historic Victorians to the newer tracts of East Petaluma and Cherry Hill. A lot of these older homes still run on galvanized supply and cast-iron drains, so we handle water heaters, drains, leaks, repipes, and aging sewer laterals, all at a price agreed before we start.
often available
Plumbing services we offer in Petaluma
Why Petaluma homeowners call Simeone
From a dripping faucet to a whole-home repipe, one trusted local team handles it all — at a price you approve first.
Local & responsive
- Same-day appointments often available
- Crews based in Sonoma County
- We know local homes & water
Upfront, honest pricing
- A fixed price before we start
- No hourly clock
- No pressure, no upsells
Licensed & guaranteed
- CA C-36 #890196
- Family-owned since 2007
- Make-It-Right Guarantee
Full-service plumbing in Petaluma
Residential plumbing
Repairs, installs, water heaters, drains, leaks, fixtures, repipes, and remodels for Petaluma homes — done cleanly and backed by our guarantee.
Commercial plumbing
Dependable plumbing for Petaluma businesses, property managers, and light commercial — from service calls to tenant improvements.
How it works
Book in minutes
Call or book online and tell us what’s going on at your Petaluma property.
Fixed price first
We diagnose and give you one upfront price — no hourly clock.
Done right
We do the work cleanly, test it, and back it with our Make-It-Right Guarantee.
Backed in writing
Every job is backed by full warranties — plus our Make-It-Right Guarantee on workmanship.
Your Petaluma neighbors count on us.
Simeone Plumbing has served Petaluma homes and businesses since 2007 — from the historic West Side and downtown to East Petaluma, Cherry Hill, Oak Hill, and the McNear and Westridge neighborhoods. Licensed, family-owned, and backed by our written Make-It-Right Guarantee.
- Serving every Petaluma neighborhood
- Licensed CA C-36 #890196
- Upfront pricing — no surprises
- Family-owned since 2007
What plumbing in Petaluma actually looks like
Petaluma is the oldest incorporated city in Sonoma County — 1858 — and it still has the housing to prove it. Roughly one home in ten predates 1940 and more than half was built before 1980. That shapes almost every call we take here.
The Victorian core: original pipe under original houses
Petaluma’s downtown escaped the 1906 earthquake largely intact, and the Depression kept the wrecking ball away afterward. The result is three designated historic districts — A Street, Oakhill-Brewster and Downtown — plus a National Register commercial district with buildings running from 1882 to 1941. Beautiful houses, and underneath them the original galvanized supply and cast iron or clay sewer laterals. On a house this age, a camera down the lateral is the cheapest twenty minutes you will ever spend.
The 1970s growth spurt, now at fifty
Petaluma went from about 300 building permits in 1969 to 900 in 1971, which is what prompted the city’s famous 1972 growth-control plan. Those tracts are now half a century old. The 1970s and 1980s together account for roughly a third of the city’s housing, and they are hitting the age where angle stops seize, water heaters that were never flushed give out, and the original supply lines under sinks have gone brittle.
Hard water — and Petaluma’s is the hardest around
The city’s most recent water quality report puts total hardness at 176 ppm, about 10.3 grains per gallon. For comparison, the Sonoma Water supply it blends with runs around 91 ppm. That is a real difference you can see: scale inside tank water heaters, crust on aerators and shower heads, and softeners that earn their keep faster here than in most of the county.
Flooding, and what it does to a sewer system
Petaluma has spent decades on flood control — the Payran Reach widening and flood walls, the Denman Reach floodplain work on Industrial Avenue, and the Capri Creek project east of North McDowell. If you are in a low-lying part of town, the plumbing questions that follow a big storm are backflow prevention, sump pumps, and whether your sewer clean-out cap is actually sealed.
About the water
Most of Petaluma’s water is imported Russian River water, delivered by the Sonoma Water aqueduct since 1961. The city also owns deep groundwater wells — over 400 feet — held in reserve for shortages and peak summer demand; they were not brought online at all in 2024. Outside the city limits, rural properties in the Petaluma Valley basin are generally on private wells, where nitrate in the western part of the basin and salt intrusion near the tidal reach of the river are the known issues.
About sewers and permits
The city runs more than 195 miles of sewer collection pipe and nine pump stations, treating at the Ellis Creek Water Recycling Facility — and it also serves neighboring Penngrove. Worth knowing: Petaluma offers a Sewer Lateral Replacement Grant to help homeowners replace a failing lateral. If you are looking at a lateral repair, ask us about it before you commit. Permits for water heaters, repipes, sewer work and gas lines go through the City of Petaluma Building Division. We pull them and meet the inspector.
Petaluma neighbors, in their words
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We moved into a house that needed some sewer work done, called around and got three estimates and we decided to work with Simeone. From the first time we chatted... read more Jordan L.
11/12/2025 Amazing people! They really saved my butt on this one. They were able to quickly come out and line a pipe. Very professional. Did an amazing job. Gina and... read more Michael O.
10/30/2025 I have an old family cabin on the Russian River that is complicated to access (it's actually on a trail). With flooding in the area it got even harder. Gena... read more Liz R.
3/11/2025 - Friday night a few weeks. I received an email from windsor water department. Saying I was using 3 too 4 times. I searched the 3 access and 9 single family... read more Peter M.
9/04/2024 We recently had Simeone Plumbing replace our aging 75-gallon water heater, recirculating pump and leak detector. They responded quickly to our inquiry and Domenic himself came out to review... read more K T.
8/10/2024 Very happy with the service we received! I needed my water heater replaced. They were so quick to respond and got the job done the next day! And the price... read more SJ K.
7/18/2024 - I have worked with Simeone for years now, and they are amazing. Their plumbers, their office, and their ownership have been nothing but responsive and helpful and always make... read more Dee Dee G.
11/20/2023 Our old boiler died. The local plumbing company gives terrible service, and quoted an outrageous price for a new boiler. We contacted a top notch boiler manufacturer, and they... read more Lorna E.
4/13/2023
Petaluma plumbing questions, answered
Is Petaluma water hard enough to need a softener?
Petaluma’s water tests around 176 ppm total hardness — roughly 10.3 grains per gallon — which is the hardest municipal supply in this part of the county. Whether you need a softener depends on what is bothering you: scale in the water heater, spotting on glass, or stiff laundry. We can test at your tap and tell you honestly whether a softener, a conditioner, or just an annual heater flush is the right answer.
My house is from the 1920s. Should I be worried about the sewer lateral?
Worth checking, not worth panicking about. Laterals from that era are cast iron or vitrified clay, and clay joints are where roots get in. A camera inspection tells you whether you are looking at roots, a belly, or a crack — and whether it can be lined without digging up the yard. Petaluma also runs a Sewer Lateral Replacement Grant, which can offset the cost.
Do I need a permit to replace a water heater in Petaluma?
Yes — through the City of Petaluma Building Division. The permit covers the things that matter: seismic strapping, venting, the expansion tank, and the drain pan and discharge line. We pull it as part of the job.
I flooded. What plumbing should I check?
Start with the sewer clean-out cap — if it is missing or cracked, storm water goes straight into the sewer and comes back up through the lowest fixture in the house. After that: the water heater if it sat in water, any gas appliance that was submerged, and whether a backwater valve makes sense for your address.
Do you offer same-day plumbing in Petaluma?
Often, yes. Our office hours are Monday to Friday, 7:30am to 4:30pm. Call and we will tell you the soonest we can be there.
What parts of Petaluma do you serve?
All of it — downtown and the historic districts, east Petaluma, Denman Flat, and the rural properties out toward the county line — plus the rest of Sonoma County.
Need a plumber in Petaluma? Let’s get it scheduled.
Same-day appointments often available across Sonoma County.