As a Los Angeles homeowner, you may be looking into making updates or upgrades to your digs. While you could always remodel the kitchen, one upgrade that you might want to consider is switching from a traditional water heater to a tankless one. Not only do these units provide you with unlimited hot water, but they also cut your monthly costs significantly.

We’re known for being upfront—so here are a few common tankless services and what they typically cost. Some items are flat-price (no guessing), and some start at a base price because the final cost depends on your home’s setup and the parts your unit needs. Either way, you’ll know what’s going on before any work starts.

Tankless Water Heater Service Pricing


This is the standard tune-up that keeps a tankless system running efficiently and helps prevent avoidable breakdowns. Maintenance typically takes about 90 minutes and includes flushing the unit to remove scale buildup, clearing debris, checking gas lines, and doing an overall assessment to make sure everything is operating properly. In hard water areas, routine upkeep is especially important—and staying on schedule can also help protect manufacturer warranty coverage.


A neutralizer is a canister filled with media that’s installed on condensing tankless water heaters to neutralize acidic condensation before it drains out. This helps protect concrete, landscaping, and drain/sewer lines from damage, and it can also reduce algae buildup near the unit. In Los Angeles County, it’s commonly required for environmental compliance. Most neutralizers last around 2–3 years. Without one, acidic water can corrode pipes, stain surfaces, harm plant life, and even create slick conditions near the drain area.


A recirculation pump helps deliver hot water faster at sinks and showers by cycling water through the plumbing system—either continuously or on-demand—so you don’t have to wait as long and you can cut down on water waste. Replacements typically take 1–4 hours depending on the home and setup. Pricing varies based on whether you have a dedicated return line or a retrofit that uses the cold line, how accessible the water heater is, the type of pump (timer, demand, or sensor-based), whether hard water filtration is recommended, and if any electrical work is needed.

One quick note: with retrofit systems that use the cold line as a return path, the cold tap may run slightly warm at first. Dedicated return lines avoid that, and many systems use sensors or bypass valves to help keep the cold line cold.


Heat exchanger replacement is needed when the internal component that heats water becomes clogged with scale or fails due to age, hard water, or missed maintenance. Since the heat exchanger is the core of the tankless unit, problems here can lead to inconsistent hot water—or no hot water at all. The job typically takes 2–4 hours, but the final cost depends on the unit make/model, parts availability, whether the part is covered under warranty, how severe the scale or corrosion is, and how accessible the unit is. Regular maintenance can extend the life of the heat exchanger and help keep warranty options open.