Who Serves Novato Water and Sewer?
Novato, California is supplied by North Marin Water District for water and served by Novato Sanitary District for sewer, and knowing which agency covers a property matters more than it sounds — in Marin, town lines and utility boundaries do not match, and the agency that treats the wastewater is often not the agency that regulates your private lateral. Unlike Ross Valley, Tiburon, Corte Madera and Sausalito–Marin City, no private sewer lateral inspection or point-of-sale ordinance is documented for Novato Sanitary District. That means a Novato sale does not automatically trigger a lateral certificate the way it does a few miles away, though it is still worth confirming with the district. Avanté Plumbing does leak detection, drain and sewer clearing, water heater work, repiping, gas lines and fixture installation across Marin County under California CSLB licence #841938 (C-36 Plumbing), family-run since 2004.
What does a plumber cost in Novato?
Avanté Plumbing charges the same rates across every city we serve, so these are the Novato prices — there is no travel surcharge and no per-neighborhood pricing.
| Water heater replacement (40–50 gal tank) | $2,500–$2,850 |
|---|---|
| Tankless water heater (Navien), installed | $5,400–$6,500 |
| Drain cleaning, kitchen line to main | $195–$465 |
| Toilet repair & installation | $195–$565 |
| Leak detection & repair | $175–$5,000 |
| Sewer repair & replacement | $350–$6,000 |
| Whole-house repipe | $4,500–$10,000 |
| Gas line repair or new gas line | $250–$3,000 |
| Sewer camera inspection | $225–$325 |
| Garbage disposal installation | $250–$425 |
| Appliance hook-ups & water softeners | $650–$3,000 |
Standard labor rate is $175 an hour. Diagnostic fee is $45 and comes off the job if you go ahead. Kitchen and bathroom remodel plumbing is quoted per job; a full written estimate is $55.
Prices current as of September 2026. Every job is quoted before work starts.
Last updated: August 2026 · Written by Karl D'Angelo, CSLB #841938 (C-36 Plumbing), plumbing in Sonoma & Marin since 2004.
Trusted and timely plumbing solutions for your home in Novato, CA. Let Avante Plumbing serve you with excellence and care.
Expert installation and repair for reliable hot water solutions.
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Local detail
Plumbing in Novato: what's actually different here
Water chemistry, housing age and city rules vary across the North Bay. Everything below is sourced from Novato and Marin County public records.
Does Novato require a sewer lateral inspection when you sell?
Not that we can document. No private sewer lateral inspection or point-of-sale ordinance is documented for this district in its published material. That is not the same as confirming none exists, so it is worth a call to the district before a sale rather than assuming. Neighbouring districts differ sharply on this — Ross Valley, Sanitary District No. 2, Sanitary District No. 5 and Sausalito–Marin City all run programmes, so buyers moving within Marin often assume a rule applies when it does not, or the reverse.
Who do you call about a Novato sewer problem?
It depends which side of the property line the problem is on. Novato Sanitary District is responsible for the public main. The private lateral running from the house to that main is the owner's, which is the section that blocks, cracks and takes on roots. A camera inspection is what settles which side of the line the fault is actually on before anyone starts digging.
How hard is Novato's water?
Novato is supplied by North Marin Water District rather than Marin Water, which is the exception in eastern Marin. North Marin does not publish a hardness figure we could verify in its current report, so we are not going to put a number on it. If scale on fixtures or short water heater life is the actual concern, a hardness test on the property answers it directly and costs very little.
Available in Novato
Plumbing services we provide here
- Appliance Water Line Hookups→
- Backflow Prevention Testing & Installation→
- Commercial Plumbing Services→
- Drain Cleaning & Hydro Jetting→
- Fixture Installation (Faucets, Sinks, Toilets & Showers)→
- Garbage Disposal Repair & Installation→
- Gas Line Repair & Leak Detection→
- Kitchen & Bathroom Plumbing Remodels→
- Leak Detection & Repair→
- Whole-Home Repiping→
- Pump & Well Repairs→
- Sewer Camera Inspections→
- Sewer Repair & Replacement→
- Toilet Repair & Replacement→
- Trenchless Sewer Repair→
- Water Heater Repair & Replacement→
- Water Heater Installation (Tank & Tankless)→
- Water Softener Installation→
Reviews
What North Bay customers say
“Karl was very helpful in explaining what needed to be done, and then did what needed to be done with our gas line very well. He was very punctual and gave us a good rate for the job. Thank you Karl!”
“knowledgeable, experienced, friendly and fast.”
“Karl came in and was polite, professional, and did a fantastic job.”
Rated 4.9 stars across 32 Google reviews — read all 32 reviews, or see photographs of real jobs across Sonoma and Marin.
Common questions
Plumbing in Novato — FAQs
Does Avanté Plumbing serve Novato, CA?
Yes. Novato is one of 32 cities we cover across Sonoma and Marin County, working from our base at 1677 Centurion Dr in Santa Rosa. Nearby Marin County cities we also serve include Belvedere, Corte Madera, Fairfax.
What plumbing services are available in Novato?
All 18 of our services are available in Novato: repairs and maintenance (leak detection, clogged drains, toilet repair, water heater repair, garbage disposals, gas lines, pump and well repairs), installation and replacement (water heaters, fixtures, whole-home repiping, sewer main lines, water softeners, appliance water lines), and specialty work (sewer camera inspections, trenchless sewer repair, hydro jetting, backflow prevention testing, kitchen and bathroom remodel plumbing, and commercial plumbing).
Do you serve both homes and businesses in Novato?
Yes. Avanté Plumbing takes on residential and commercial work in Novato, from a single leaking fixture in a home to plumbing an entire commercial fit-out. Our commercial experience includes a full plumbing package for the L'Occitane store in Montgomery Village, Santa Rosa.
Is Avanté Plumbing licensed and insured to work in Novato?
Yes. Avanté Plumbing holds California CSLB licence #841938 (C-36 Plumbing), issued in 2004 and current and active, backed by a $25,000 contractor's bond and workers' compensation insurance. The licence is issued by the state and valid throughout California, including Novato. You can verify it on the CSLB website at any time.
How do I get a quote for plumbing work in Novato?
Call (707) 231-0790 or send the details through the contact form. We diagnose the problem first and quote it before any work starts, so you can decide with the number in front of you.
Sonoma & Marin County
Need a plumber in Novato?
Call (707) 231-0790 or send a note — we'll get back to you fast with a straight answer.
Licensed, bonded & insured · CSLB #841938 · Mon – Sun, 7:00 AM – 7:00 PM