Same Day Heating, Cooling & Plumbing
Ranked #5 in our 2026 San Diego water heater guide — best for same-day arrival, in writing
Same Day Heating, Cooling & Plumbing, founded in 2019 in Kearny Mesa, makes the most enforceable scheduling promise in the San Diego market: if it does not arrive the same day it schedules plumbing service, the service fee is waived — in writing on its water heaters page. Its verified CSLB license (C-36, C-20, C-10, issued October 2019) matches the founding claim exactly. It publishes a $99 diagnostic fee, advertised water heater replacement discounts, and claims a two-year money-back guarantee on replacements and repairs.
Services
- Repair
- Install & replace
- Tankless
- Heat pump
- 24/7 availability
- —
- Same-day service
- Yes
- Financing
- Yes
- Pricing
- Publishes a $99 diagnostic fee and advertised replacement discounts
- Warranty
- Claims a two-year money-back guarantee on replacements and repairs — get written terms
License & contact
- CSLB license
- #1059444 · C-20 HVAC, C-10 Electrical, C-36 Plumbing · current and active (expires 10/31/2027) (verified against the CSLB lookup)
- History
- Founded 2019; license issued October 2019 (consistent)
- Address
- 9771 Clairemont Mesa Blvd. Suite E, San Diego, CA 92124
- Phone
- (619) 762-3044
- Website
- samedaysd.com
- Service area
- San Diego County
Observed strengths
- Written same-day guarantee with a real penalty: the service fee is waived if arrival slips
- CSLB license #1059444 verified active (C-36 + C-20 + C-10); issue date matches the founded-2019 claim — no history gap
- Publishes a $99 diagnostic fee and specific promotional pricing — rare fee transparency here
- Claims a two-year, 100% money-back guarantee on replacements and repairs
Ask before hiring
- The only 24/7 wording on its site covers air conditioning — confirm after-hours water heater coverage before an overnight emergency
- A 2019 founding means a shorter track record than the legacy firms — ask for water-heater-specific references
- Request the two-year money-back guarantee terms in writing as applied to your job
Sources we checked
- Company homepage (license display, guarantees) — checked 2026-06-10
- Water heaters page (same-day guarantee wording, promo pricing, CSLB link) — checked 2026-06-10
- About page (founded 2019, owners) — checked 2026-06-10
- CSLB license detail #1059444 (entity, classifications, issue date) — checked 2026-06-10
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