Your Tankless Water Heater
Deserves Better Than Hard Water.

For most Orange County homes, we recommend flushing your tankless water heater once a year. Orange County water hardness typically ranges from 15 to 25 grains per gallon, which is classified as very hard by the Water Quality Association. This mineral-rich water deposits calcium and magnesium carbonate inside your heat exchanger every time you use hot water. In cities with especially hard water like Anaheim, Santa Ana, and Garden Grove, flushing every 6 months is ideal. If you have a properly maintained water softener, you may be able to extend to every 18 months. The bottom line: annual flushing is the safest default for any tankless water heater owner in Orange County.

Our tankless water heater flush is $349 flat rate, all-inclusive. That covers everything: the food-grade citric acid descaling solution, 60 minutes of circulation through the heat exchanger, inlet filter cleaning, full system inspection, flow rate testing, and a written service report with photos. There are no trip charges, no diagnostic fees, no parts markups, and no upsells. The price is the same whether you have a small Bosch point-of-use unit or a high-capacity Rinnai whole-house system. We believe tankless maintenance pricing should be transparent and predictable, which is why we publish our rate and stick to it.

We service all major tankless water heater brands including Rinnai, Navien, Noritz, Rheem, Takagi, and Bosch. Our technicians are trained on the specific maintenance requirements of each manufacturer and follow their recommended flushing procedures. Whether you have a condensing or non-condensing unit, natural gas or propane, indoor mount or outdoor mount, we have the expertise and equipment to flush it properly. Each brand has slightly different isolation valve configurations and diagnostic interfaces, and our team knows them all.

A complete flush takes 60 to 90 minutes. The core of the service is a 60-minute circulation of food-grade citric acid descaling solution through the heat exchanger, which is the time needed for the solution to dissolve calcium and mineral deposits. Before the flush, our technician isolates the unit, connects the flushing equipment, and cleans the inlet filter. After the flush, we test flow rates, check temperature differential, review error code history, inspect venting and gas connections, and document everything in a written service report. We never rush the process because a thorough flush is the only flush worth paying for.

No, flushing will not void your warranty. In fact, the opposite is true: most manufacturers including Rinnai, Navien, Noritz, Rheem, Takagi, and Bosch require annual flushing and descaling as a condition of their warranty coverage. If you skip annual maintenance and your heat exchanger fails due to scale buildup, the manufacturer can deny your warranty claim entirely. We provide a detailed written service report after every flush that includes the date, technician name, work performed, and photos of scale removed. This report serves as your proof of maintenance for warranty purposes.

Yes, we ask that an adult be present during the appointment. Our technician needs access to your tankless unit, which may be located in a garage, utility closet, attic, or mounted on an exterior wall. At the end of the service, the technician walks you through the results, shows you photos of the scale that was removed, and explains the condition of your unit. We offer flexible scheduling Monday through Saturday from 7 AM to 6 PM, including same-day and next-day appointments, so finding a time that works for your schedule is easy.

If your tankless unit has never been flushed or it has been more than two years since the last service, there is likely significant mineral scale buildup inside the heat exchanger. The good news is that our professional flushing process can remove even heavy deposits in most cases. For severely scaled units, we run additional cycles of descaling solution at no extra charge until the water runs clear. In rare situations where scale has caused permanent damage to the heat exchanger, we will be honest with you about the condition and discuss your options. The longer you wait to flush, the harder the deposits become, so we always recommend scheduling sooner rather than later.

Yes. Our annual maintenance plan locks in your flush at the current $349 rate, includes priority scheduling so you get first pick of appointment times, and we send you reminders when it is time for your next service so you never have to remember. There is no long-term contract and no cancellation fee — you can cancel at any time for any reason. Many Orange County homeowners sign up for the plan simply because it eliminates the hassle of remembering when their last flush was. Set it and forget it: we handle the scheduling so your tankless unit stays in peak condition year after year.