Home / Directory Directory · updated June 2026 Water heater companies serving San Diego
Every company we have researched, not just the ranked picks — each with services, license
signal, coverage, and the sources we checked. Default order is editorial relevance;
sponsored listings are labeled and never jump the order.
Disclosure: 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. Read the full policy. All (40) Repair Install & replace Tankless Heat pump Emergency Maintenance Commercial Recirculation Expansion tanks Gas line Water treatment
Repair Install & replace Tankless Heat pump Commercial 24/7
License #374573 C-36 (CSLB-verified)
Coverage San Diego, Santee, Vista +11 more
History Brand dates itself to 1968; the San Diego C-36 license was issued in 1979 Repair Install & replace Tankless Maintenance Emergency Commercial 24/7
License #488413 C-36 (CSLB-verified)
Coverage San Diego County, San Diego, Chula Vista +5 more
History Serving San Diego since 1980; corporate C-36 license issued 1986 Repair Install & replace Tankless Maintenance Commercial Emergency 24/7
License #836216 C-36 (CSLB-verified)
Coverage San Diego, San Diego County, Chula Vista +5 more
History Founded "over three decades ago" per the company; license issued April 2004 Repair Install & replace Tankless Heat pump Maintenance
License #887621 C-20 (CSLB-verified)
Coverage San Diego, El Cajon, La Mesa +7 more
History Family-owned since 2006; license issued November 2006 (consistent) Repair Install & replace Tankless Heat pump
License #1059444 C-20 (CSLB-verified)
Coverage San Diego County
History Founded 2019; license issued October 2019 (consistent) Repair Install & replace Tankless Water treatment 24/7
License #957978 C-36 (CSLB-verified)
Coverage San Diego, Clairemont, Chula Vista +8 more
History BBB lists business start July 2010; license issued February 2011 Install & replace Tankless Maintenance Recirculation Water treatment 24/7
License #348810 B (CSLB-verified)
Coverage San Diego, Allied Gardens, San Diego County +2 more
History Founded April 1960; license issued December 1977 (incorporation of an older business) Repair Install & replace Tankless Heat pump Maintenance Water treatment 24/7
License #967435 C-36 (CSLB-verified)
Coverage San Diego, Kearny Mesa, La Jolla +10 more
History BBB lists business start 1999; corporate license issued 2011 (common after incorporation) Repair Install & replace Maintenance Tankless 24/7
License #1120624 C-36 (CSLB-verified)
Coverage San Diego, Escondido, El Cajon +14 more
History Brand claims "since 1969"; the verified license was issued May 2024 — ask about the gap Repair Install & replace Tankless Maintenance Emergency 24/7
License #1078951 C-36 (CSLB-verified)
Coverage San Diego, Pacific Beach, La Mesa +12 more
History BBB dates the business to 2010; the current operating license was issued July 2021 to a successor entity Repair Install & replace Tankless Emergency Expansion tanks Gas line
License #1010820 C-36 (CSLB-verified)
Coverage Chula Vista, Bonita, National City +11 more
History Conflicting site claims (“over 28 years” and “Since 2014”); the license issued in 2016 Repair Install & replace Tankless Emergency Gas line 24/7
License #956336 C-36 (CSLB-verified)
Coverage Chula Vista, National City, Lemon Grove +11 more
History Site claims “over 20 years”; the C-36 license issued in 2011 Repair Install & replace Tankless Emergency 24/7
License #986372 C-36 (CSLB-verified)
Coverage Poway, San Diego, Rancho Bernardo +3 more Install & replace Repair Maintenance Tankless Heat pump
License #1045495 C-36 (CSLB-verified)
Coverage San Diego, Carmel Valley, Chula Vista +5 more
History Site claims “since 2001”; the C-36 license issued in 2018 Repair Install & replace Tankless Maintenance Emergency Water treatment 24/7
License Not shown on site
Coverage San Diego County, El Cajon, San Diego +1 more
History Serving the greater San Diego area since 1978 (company claim) Repair Install & replace Tankless Commercial Emergency 24/7
License #1081682 C-36 (CSLB-verified)
Coverage San Marcos, Escondido, Vista +11 more
History Site claims “15 years experience”; the active license (held by Andersen Commercial Plumbing LLC) issued in 2021 after the original ASAP entity’s license was canceled in 2010 Repair Install & replace Maintenance Tankless Emergency Water treatment
License #513115 C-10 (CSLB-verified)
Coverage San Diego, North County, East County +1 more
History Site claims “since 1952”; the current license issued in 1987 Repair Install & replace Tankless Heat pump Maintenance Emergency 24/7
License #782799 C-36 (CSLB-verified)
Coverage San Diego, Scripps Ranch, Poway +9 more
History Site claims “since 1993”; the current C-36 license was issued in 2000 Repair Install & replace Water treatment
License #718202 A (CSLB-verified)
Coverage Encinitas, Vista, Carlsbad +2 more
History Site claims over 30 years; the license issued in 1996 (consistent) Repair Install & replace Maintenance Tankless Heat pump Commercial
License #919636 C-36 (CSLB-verified)
Coverage Chula Vista, San Diego, National City +5 more
History Site claims “since 1993”; the license issued in 2008 (held by CSLB as a sole ownership under “Castillo Works”) Repair Install & replace Maintenance Tankless Emergency
License #1101228 C-36 (CSLB-verified)
Coverage Oceanside, Carlsbad, Vista +2 more Repair Install & replace Tankless Maintenance Emergency 24/7
License #866264 C-36 (CSLB-verified)
Coverage San Diego, Clairemont, Kearny Mesa +11 more Install & replace Heat pump
License #875279 C-20 (CSLB-verified)
Coverage San Diego, Chula Vista, Escondido +6 more
History Since 2005 (BBB start date matches); license issued 2006 Repair Install & replace Tankless Heat pump
License #971548 C-36 (CSLB-verified)
Coverage San Diego, Santee, El Cajon +9 more Repair Install & replace Tankless Heat pump Emergency Recirculation 24/7
License #1102931 C-36 (CSLB-verified)
Coverage San Diego, Miramar, La Jolla +3 more
History C-36 license issued March 2023 Repair Install & replace Maintenance Tankless Water treatment
License #1080062 C-36 (CSLB-verified)
Coverage San Diego, Chula Vista, Oceanside +13 more
History License issued August 2021; site claims "combined 10 years of experience" Repair Install & replace Tankless
License #1001815 C-36 (CSLB-verified)
Coverage Rancho Peñasquitos, Carmel Valley, Del Mar +8 more
History License issued March 2015 Repair Install & replace Tankless Maintenance Emergency 24/7
License #1048184 C-36 (CSLB-verified)
Coverage San Marcos, Encinitas, Vista +5 more
History Site claims "40+ Years in Business"; the license dates to December 2018 — the figure likely refers to personal experience, not the entity's age Repair Install & replace Tankless Heat pump Maintenance Emergency 24/7
License #938964 C-36 (CSLB-verified)
Coverage Poway, San Diego, Carlsbad +11 more
History Site claims “since 1984”; the current corporate license dates to 2009 (founder-era license expired 1995) Repair Install & replace Tankless Emergency 24/7
License #981489 C-36 (CSLB-verified)
Coverage San Diego, La Jolla, Pacific Beach +11 more
History Site claims “Since 2013”, consistent with the license issue date Repair Install & replace Tankless Heat pump Solar Maintenance
License #931938 C-10 (CSLB-verified)
Coverage San Diego, Point Loma, Pacific Beach +9 more
History Site claims “since 1988”; the current license issued in 2009 to Dent Electric Inc (dba Point Loma Home Pros) Repair Install & replace Tankless Heat pump Expansion tanks Gas line 24/7
License #937646 C-36 (CSLB-verified)
Coverage San Marcos, Vista, Escondido +11 more
History Site claims "Serving North County San Diego Since 2009" — consistent with the license's September 2009 issue date Repair Install & replace Tankless Maintenance Emergency 24/7
License #1041118 C-36 (CSLB-verified)
Coverage San Diego County Repair Install & replace Maintenance Tankless Emergency Gas line 24/7
License #1087971 C-36 (CSLB-verified)
Coverage El Cajon, La Mesa, Lemon Grove +11 more
History Site claims “over 21 years”; the LLC license issued in 2022 Repair Install & replace Maintenance Tankless Emergency 24/7
License #1116833 C-36 (CSLB-verified)
Coverage Carlsbad, San Diego, Oceanside +3 more Repair Install & replace Tankless Commercial Emergency Gas line 24/7
License #1115102 C-36 (CSLB-verified)
Coverage Chula Vista, Bonita, Eastlake +9 more
History Qualifier has held a San Diego plumbing license since 1982; the operating corporation’s current license dates to 2024 Repair Install & replace Tankless Heat pump Emergency 24/7
License #1130366 C-36 (CSLB-verified)
Coverage Oceanside, Carlsbad, Vista +4 more Repair Install & replace Tankless Heat pump Maintenance Emergency 24/7
License #1087368 C-36 (CSLB-verified)
Coverage San Diego, La Mesa, Chula Vista +9 more
History License issued February 2022; no founding year published Install & replace Tankless Emergency 24/7
License #1075084 C-36 (CSLB-verified)
Coverage San Diego, Clairemont, Kearny Mesa +3 more
History Site claims “over 30 years of experience”; the corporate license issued in 2021 Install & replace Tankless Water treatment
License #1079845 B (CSLB-verified)
Coverage Vista, Oceanside, Carlsbad +3 more
History Site claims "Over 30 Years of Plumbing in Vista" and 51 years of combined experience; the license was issued in August 2021 — the figures refer to personal experience, not the entity's age All 40 companies are listed above; filters require JavaScript, but every company and service is visible on this page and on the ranked guide .