# Happy Plumbing

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

Happy Plumbing is an East County company (Happy Plumbing Inc) on a verified C-36 license, with dedicated tankless and heat pump water heater pages alongside standard tank repair and replacement. It advertises same-day appointments and emergency service across 16 listed communities, and offers financing through PowerPay. No founding year is published, and its CSLB address of record (El Cajon) differs from the Santee office shown on the site.

## At a glance

- **Location:** Santee, CA
- **CSLB license:** #971548 C-36 (CSLB-verified)
- **24/7 availability:** —
- **Same-day service:** Yes
- **Financing:** Yes
- **Website:** https://happyplumbing.com
- **Phone:** (619) 317-0600
- **Service areas:** San Diego, Santee, El Cajon, La Mesa, Lakeside, Lemon Grove, Alpine, Chula Vista, Coronado, Poway, Point Loma, Ocean Beach

## Observed strengths

- CSLB license #971548 (C-36) verified active (Happy Plumbing Inc)
- Dedicated tankless and heat pump water heater pages in addition to tank repair/replacement
- Publishes same-day and emergency availability across 16 East County and metro communities

## Ask before hiring

- No founding year or history is published — ask how long it has operated
- The CSLB address of record (El Cajon) differs from the Santee office shown on the site — confirm which is current
- No written warranty or pricing is published — ask what workmanship warranty applies

## Sources we checked

- [Happy Plumbing homepage (license, services, same-day/emergency claims, service areas)](https://happyplumbing.com) — checked 2026-06-10
- [Heat pump water heater page (heat pump line, financing)](https://happyplumbing.com/heat-pump-water-heaters/) — checked 2026-06-10
- [CSLB license detail #971548 (Happy Plumbing Inc, C-36, active)](https://www.cslb.ca.gov/onlineservices/checklicenseII/LicenseDetail.aspx?LicNum=971548) — checked 2026-06-10

Canonical page: https://www.sandiegowaterheater.com/company/happy-plumbing/

## 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._