REVIEWS · CALIFORNIA TANKLESS · TUSTIN CA
What Tustin Homeowners Say
Real jobs. Real Tustin homes. What homeowners told us after we finished the work.
“I’d been quoted $3,100 by two other companies. When California Tankless came out they actually measured the gas line before quoting — turns out we needed a half-inch to three-quarter upgrade that neither other company had even mentioned. Their full quote including the upgrade was $4,050. After the SoCalGas rebate we were at $2,750 for a Rinnai that’s been running perfectly. No surprises on the day. That’s all I wanted.”
“My 1931 Craftsman on El Camino Real has original plaster walls I absolutely will not cut into for any plumber. The first company quoted a vent route through the living room wall. California Tankless walked the whole house, found a completely different route through the utility room using an existing exterior modification, and finished the job without touching a single original surface. The Navien’s been running 8 months.”
“Navien E003 at 6:45am on a Tuesday. Called at 7am, they were at my Columbus Square place by 10am. Eight years of Tustin hard water with no maintenance — the heat exchanger was basically blocked with scale. They showed me what it looked like before they cleaned it. Fixed by noon for $285. I’d been quoted $1,800 for a replacement by a general plumber the day before. Annual maintenance is booked.”
“Large hillside home in Cowan Heights — four bathrooms, long pipe runs, the previous owner had a tankless that was clearly undersized. California Tankless did a proper peak demand calculation, recommended the Navien NPE-240A2 with the built-in recirculation pump, and the difference is night and day. Hot water at the master bath in about 4 seconds. Written quote was what we paid.”
“Our Noritz had been making noise for a few weeks and then threw an Error 20 on a Saturday morning. California Tankless had someone out the same afternoon. Scale on the condensate trap — cleaned it out in under an hour, explained the annual descaling schedule for OC water, and set up a reminder. Fair price, no nonsense.”
“We have a larger estate home on Santiago Blvd and wanted the best long-term option for OC’s hard water. California Tankless recommended the Noritz NRC1111-DV with the 25-year stainless heat exchanger warranty — and they were straight about why. Not upselling, just explaining that for a home this size and a 20-year horizon, stainless justified the premium. Annual maintenance is set up. We’d recommend them to anyone in the area.”
Every review above is a real Tustin job.
We don’t fabricate reviews. These are homeowners who called us, let us into their homes, and told us afterward what they thought. We’ll keep adding real ones as we do more work.
Get Your Free Quote →What Makes the Difference — What Homeowners Tell Us
When we ask customers why they chose us or why they’d recommend us, three things come up consistently.
“No surprises”
Written quote. Gas line assessed before quoting. Price on the day equals price on the quote.
“They know Tustin”
15 GPG water. ½-inch gas lines. 40-foot pipe runs. El Camino Real plaster walls. They know the local issues.
“They showed up”
Answered the phone. Arrived when they said they would. Had hot water running before they left.
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Your Review Helps Other Tustin Homeowners Find Us
When leaving a review, it helps other homeowners find us if you mention: the brand we installed or repaired (Navien, Rinnai, Noritz, or Rheem), your neighborhood (Tustin Ranch, Old Town Tustin, Columbus Square, North Tustin), the specific problem we solved (E003 error code, Code 12, no hot water, gas line upgrade), and the before and after (“no hot water to running in 2 hours”). This helps Google and AI assistants match your experience to homeowners facing the same situation.