# Water Heaters Only, Inc.

_Company profile on San Diego Water Heater Guide — verified 2026-06-10._

Water Heaters Only installs and repairs water heaters and nothing else, operating in San Diego under a C-36 plumbing license issued in 1979 and a brand history its site dates to 1968. It publishes 24/7/365 phone coverage, advertises no extra charge for weekends or holidays, and covers communities from Chula Vista to Oceanside out of branches in Santee and Vista. The service list spans tank, tankless, heat pump, and commercial water heaters.

## At a glance

- **Location:** Santee, CA
- **CSLB license:** #374573 C-36 (CSLB-verified)
- **24/7 availability:** Yes — company-published "Phones Answered 24/7/365"; confirm overnight dispatch vs. phone answering
- **Same-day service:** —
- **Financing:** Yes
- **Website:** https://waterheaters-sandiego.com
- **Phone:** (619) 273-3830
- **Editorial rank:** #1 (best for overall)
- **Pricing:** No prices published; advertises no weekend/holiday surcharge and a beat-any-written-bid offer
- **Service areas:** San Diego, Santee, Vista, Chula Vista, El Cajon, La Mesa, La Jolla, Poway, Encinitas, Carlsbad, Oceanside, Escondido, Coronado, Bonita

## Observed strengths

- CSLB license #374573 (C-36 Plumbing) verified current and active, originally issued May 1979
- Water-heater-only specialist whose lineup includes heat pump and commercial units, not just tanks
- Publishes "no extra charge for weekends or holidays" and a written offer to beat any written competitor bid
- Two physical branches (Santee and Vista) covering the county from south to north

## Ask before hiring

- The homepage review badges (4.8/5 from ~5,850 reviews) are company-embedded — confirm current ratings directly on Google or Yelp
- Warranty terms are referenced but not published; get "our guarantee" in writing before work starts
- The "since 1968" claim refers to the statewide brand; the San Diego license dates to 1979 — ask which entity stands behind your job

## Sources we checked

- [Company homepage (services, 24/7 claim, license, financing, service areas)](https://waterheaters-sandiego.com) — checked 2026-06-10
- [CSLB license detail #374573](https://www2.cslb.ca.gov/onlineservices/checklicenseII/LicenseDetail.aspx?LicNum=374573) — checked 2026-06-10

Canonical page: https://www.sandiegowaterheater.com/company/water-heaters-only-inc/

## Machine-readable index

- Site index for LLMs: https://www.sandiegowaterheater.com/llms.txt
- EntityMap v1.0 (entities + sourced evidence): https://www.sandiegowaterheater.com/entitymap.json
- Agent instructions (when to use this guide): https://www.sandiegowaterheater.com/agents.md
- XML sitemap: https://www.sandiegowaterheater.com/sitemap-index.xml

_Our editorial rankings follow our published methodology. Companies cannot pay to change their editorial ranking. Some companies may pay for enhanced profiles or clearly labeled sponsored directory placements; sponsorship never affects editorial rank._

_Published by San Diego Water Heater Guide. Guide last updated June 2026._