Efficient Water Heaters, Inc. — San Jose Navien tankless specialists

Contact Efficient Water Heaters, Inc.

Contact a Navien Specialist in San Jose

Call, text a photo, or send the form — a specialist responds 24/7, and same-day service is available.

Call (408) 470-0191Send a Message
San Jose Navien specialist arriving for a same-day water heater service call

How to reach us

To reach Efficient Water Heaters for Navien tankless service in San Jose, call (408) 470-0191 any time, 24 hours a day, 7 days a week, and you will reach a specialist rather than a dispatch center. You can also email contact@efficientwaterheaterssanjose.com or send the form on this page with photos of your unit and its data plate for a phone estimate. The company serves San Jose plus 18 more cities across the South Bay and Peninsula, with same-day service available.

Three ways to start

Call or text

  • (408) 470-0191 — open 24 hours, 7 days a week.
  • Same-day service is available.
  • Fastest route when the hot water is already gone or an error code is flashing.
(408) 470-0191

Send photos for a phone estimate

  • Photograph the full unit on the wall, the data plate or model label, the top connections, and the venting.
  • Add a shot of any leak, drip, or error display.
  • Most jobs can be scoped by phone from those pictures before a truck rolls.

Prefer to write it out?

  • The form below reaches a specialist directly.
  • You can also email contact@efficientwaterheaterssanjose.com — replies come 24 hours a day, 7 days a week.
  • Email or the form both work for non-urgent questions and estimates.

Send a message

No spam. No pressure. A specialist reviews every message 24/7.

Send a photo of your data plate for a faster estimate.

SMS consent — Efficient Water Heaters, Inc.

Both checkboxes below are optional and start unchecked. You can submit this form without opting in to SMS. By checking a box you certify you are at least 18 years old and are the account holder or have the account holder's permission for the mobile number provided.

Providing a phone number alone does not grant permission to send SMS messages — consent is collected only via the checkboxes above. SMS consent and phone numbers are not shared with third parties for marketing purposes (we share only with our SMS delivery provider as required to send the message). See our Privacy Policy and Terms of Use.

No spam. No pressure. A specialist reviews your request 24/7.

Prefer to call? (408) 470-0191 · Open 24/7

Hours

Open 24 hours a day, 7 days a week.

What to expect

  • Same-day responses, 24/7.
  • Same-day service available.
  • Phone estimates before any visit.

Cities we cover

Based in San Jose, serving 19 cities across the South Bay and Peninsula.

San Jose + Santa Clara County

  • San Jose
  • Santa Clara
  • Sunnyvale
  • Cupertino
  • Mountain View
  • Milpitas
  • Campbell
  • Los Gatos
  • Saratoga
  • Los Altos
  • Monte Sereno
  • Palo Alto

San Mateo County / Peninsula

  • Redwood City
  • Menlo Park
  • East Palo Alto
  • Atherton
  • Portola Valley
  • Woodside

South Santa Clara County

  • Morgan Hill
  • Gilroy
  • San Martin

Contact questions

Calling (408) 470-0191 is fastest — the line is answered 24 hours a day, 7 days a week, by a specialist rather than a call center. If you are without hot water or looking at a flashing error code, call rather than filling out the form.

Hot water problem? Don't wait on a form.

A specialist answers 24 hours a day, 7 days a week.

Call (408) 470-0191
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