# Guthrie & Sons Heating, Air & Solar

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

Guthrie & Sons is an HVAC and solar company operating since 2005 that has moved into heat pump water heaters with unusual equipment specificity: its page details the 120V plug-in Rheem ProTerra hybrid with its 10-year parts warranty, and publishes federal and state rebate guidance with 0% financing offers. Its verified corporate license is current and active — but carries C-20 HVAC and B General Building classifications, not C-36 Plumbing, which is the right first question for a water heater job.

## At a glance

- **Location:** San Diego, CA
- **CSLB license:** #875279 C-20 (CSLB-verified)
- **24/7 availability:** —
- **Same-day service:** —
- **Financing:** Yes
- **Website:** https://www.guthrieandsons.com
- **Phone:** 619-269-3013
- **Pricing:** Publishes promotions (up to $1,500 off new systems; free diagnostic with repair) and 0% financing; no installed prices
- **Warranty:** Claims lifetime workmanship guarantee and 2-year labor warranty; Rheem ProTerra carries a 10-year manufacturer parts warranty
- **Service areas:** San Diego, Chula Vista, Escondido, La Mesa, El Cajon, Carlsbad, Oceanside, Temecula, Murrieta

## Observed strengths

- CSLB corporate license #875279 verified current and active; CSLB address and phone match the company exactly
- BBB accredited since 2008 with A+ and a business start matching the "since 2005" claim
- Unusually specific heat pump equipment detail: 120V plug-in Rheem ProTerra with a 10-year manufacturer parts warranty
- Publishes rebate guidance and 0% financing for 24–48 months; claims lifetime workmanship guarantee

## Ask before hiring

- The verified license carries C-20 (HVAC) and B (General Building) but no C-36 (Plumbing) — ask which classification covers your water heater installation
- Confirm which state rebate program backs the "up to $6,000" claim and whether funding is currently available
- Clarify whether "24/7 live answering" means after-hours dispatch or phone answering only

## Sources we checked

- [Company homepage (claims, warranties, financing, promos)](https://www.guthrieandsons.com) — checked 2026-06-10
- [Heat pump water heater page (Rheem ProTerra detail, rebate claims)](https://www.guthrieandsons.com/heat-pump-water-heaters/) — checked 2026-06-10
- [CSLB license detail #875279 (classifications, address/phone match)](https://www2.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=875279) — checked 2026-06-10
- [BBB profile (A+, accredited since 2008, start 2005)](https://www.bbb.org/us/ca/san-diego/profile/heating-and-air-conditioning/guthrie-and-sons-1126-29008524) — checked 2026-06-10

Canonical page: https://www.sandiegowaterheater.com/company/guthrie-and-sons/

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_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._