Water Heater Repair & Replacement in Santa Rosa, CA

Cold showers are no way to start the day in Santa Rosa. Ray's Rescue Plumbing repairs and replaces tankless and tank water heaters for homeowners across town — from older homes near Downtown and the Junior College area to rebuilt and newer houses in Coffey Park and Fountaingrove. We're locally owned and based at 8412 Lakewood Ave in Cotati, about 15 minutes south of downtown Santa Rosa on Highway 101. We find the cause first, tell you straight whether a repair or a new heater makes more sense, and give you a no-cost water heater estimate before any work starts. Same-day service available. Emergency calls taken. Call or text (707) 596-3095. CA License #1112228. Serving Sonoma County.

Tankless water heaters in Santa Rosa

Many Santa Rosa homes — especially rebuilt after the 2017 fires in places like Coffey Park and Fountaingrove — already have tankless water heaters. We install, descale, service, repair and replace them. Minerals in Sonoma County water build up as scale inside the heat exchanger; regular descaling keeps the unit running and helps it last. Error code on the display, water that goes hot then cold, or no hot water at all? Call or text (707) 596-3095 and we'll tell you what we can do. No-cost tankless water heater estimates. See also our tankless water heaters page.

Tank water heater repair & replacement

For gas and electric tank water heaters, we diagnose first. Repair usually makes sense when the heater is fairly young and one part has failed — thermostat, heating element, thermocouple, igniter, gas control, or a leaking valve or fitting — and the tank itself is dry. Replacement usually makes sense when the tank is leaking (a leaking tank can't be repaired), the heater is near the end of its life, or you keep running out of hot water. We also install heat pump water heaters when the space and electrical setup fit. See our county page: water heater repair & replacement.

Signs your Santa Rosa water heater needs attention

  • No hot water, or it runs out fast
  • Lukewarm or too-hot water
  • Rusty or discolored hot water
  • Popping, rumbling or banging from the tank
  • Water pooling around the base of the tank
  • A rotten-egg smell from the hot water
  • A tankless unit showing an error code or shutting off mid-shower

Whole-house no hot water usually points to the heater (or its gas/power). One fixture usually means a worn cartridge or valve — not a new water heater.

What a replacement includes (when you need one)

  • Removing and hauling away the old water heater
  • Installing the new unit with proper connections and venting
  • Earthquake strapping (required for water heaters in California)
  • Expansion tank installation where needed
  • Testing for leaks and safe operation before we leave

Santa Rosa neighborhoods we serve for water heaters

Downtown, Railroad Square, West End, McDonald Avenue, Junior College, Burbank Gardens, Bennett Valley, Rincon Valley, Montgomery Village, Oakmont, Fountaingrove, Coffey Park, Roseland, Southwest Santa Rosa, and everywhere in between. Serving Sonoma County — including Rohnert Park, Petaluma, Cotati and the City of Sonoma (Sonoma the city is not the same as Sonoma County).

How calling works

  1. Call, text or book online. Tell us gas, electric or tankless, and what it's doing. A photo of the label helps.
  2. We diagnose it and explain repair vs. replace in plain words.
  3. You get the price first — no work starts until you say go. Water heater estimates are no cost.
  4. We fix or replace it, test it, clean up, and make sure you have hot water before we leave.

Hours: Mon–Fri 7am–5pm. Emergency calls taken.
Shop: 8412 Lakewood Ave, Cotati, CA 94931 · (707) 596-3095 · CSLB #1112228

Broader plumbing

If you need more than a water heater: tankless water heaters; water heater repair and replacement; drain and water line repair; fixture replacement; drain cleaning and clog clearing — in that order of focus. Full list on services and plumber Santa Rosa.

Frequently asked questions

Should I repair or replace my water heater in Santa Rosa?

If the unit is fairly young and the problem is a part like a thermostat, element, thermocouple or valve, repair usually makes sense. If the tank is leaking or the heater is near the end of its life, replacing it is usually the better buy. We'll tell you which makes sense and give you a price before any work begins. Call or text (707) 596-3095.

Do you charge for water heater estimates in Santa Rosa?

No. Estimates on water heaters — tank or tankless — are no cost. That no-cost estimate is for water heaters only, not other plumbing work. Call or text (707) 596-3095 to set one up.

How much does it cost to replace a water heater in Santa Rosa?

It depends on the type of heater (gas, electric, tankless or heat pump), where it sits (garage, closet or attic), and what California code requires for your home — earthquake strapping, an expansion tank, venting and the permit. A like-for-like tank swap is the simplest job; switching to tankless often needs gas line and venting work. Water heater estimates are no cost: we look at your setup and give you a written price before any work starts. Serving Sonoma County. Call or text (707) 596-3095.

Can you repair or replace a Santa Rosa water heater the same day?

Same-day service is available, and many water heater replacements are done the same day or the next day, depending on the schedule and getting the right unit. Regular hours are Monday through Friday, 7am to 5pm, and we take emergency calls. If you have no hot water, call or text (707) 596-3095 and we'll tell you when we can be there.

Do you service tankless water heaters in Santa Rosa?

Yes. We install, descale, service, repair and replace tankless water heaters in Santa Rosa homes, including many rebuilt after the 2017 fires. No-cost tankless estimates. Call or text (707) 596-3095.

Do you work on gas and electric water heaters?

Yes. We repair and replace both gas and electric tank water heaters, install heat pump water heaters, and repair, replace and install tankless units. If you're thinking about switching types, we'll tell you what your home's gas, venting and electrical can support.

Are you a licensed plumber near Santa Rosa?

Yes. Ray's Rescue Plumbing holds California contractor license (CSLB) #1112228. We're based at 8412 Lakewood Ave, Cotati, CA 94931 — about 15 minutes south of downtown Santa Rosa on Highway 101. Call or text (707) 596-3095.

Get your hot water back in Santa Rosa

Call or text (707) 596-3095 · email ray@raysrescueplumbing.com · or Book Now on the site.
No-cost water heater estimates. Same-day service available. Serving Sonoma County.
8412 Lakewood Ave, Cotati, CA 94931 · CA License #1112228