Tankless Water Heater Services in Los Angeles

Quick answer: A tankless water heater heats water only when you use it, so it never runs out of hot water as long as it's sized correctly, and it frees up the space a tank takes. Switching from a tank usually means a larger gas line, new venting and sometimes a condensate drain, so proper sizing and installation matter. Boss Plumbing installs, repairs and descales tankless water heaters across Los Angeles. Call or text (323) 464-4700.

Tankless services we provide

New tankless installations and tank-to-tankless conversions
Gas line upsizing and venting for tankless units
Descaling and flushing, which matters with Los Angeles hard water
Repairs for ignition failures, error codes, low flow and temperature swings
Recirculation pumps for faster hot water at distant fixtures

Is tankless right for your home?

Good fit: households that run out of hot water, homes short on space, and owners who plan to stay long enough to benefit from a longer service life.
Check first: whether your gas meter and gas line can supply the unit, where the vent can run, and how many fixtures run at the same time.
Consider a tank instead: when the existing gas supply can't support a tankless unit without major work, or when the lower upfront cost of a tank matters more. See tank vs. tankless.

How we size and install a tankless water heater

Count the demand. We add up the flow rate of the fixtures you use at the same time, such as two showers and a dishwasher.
Match the unit. Tankless capacity depends on flow and temperature rise, so we choose a model that meets your peak demand.
Check gas and venting. Tankless units need much more gas while running than a tank heater. We size the gas line and plan the vent route.
Install to code. We pull the permit, install isolation valves for easy descaling and schedule the inspection.

Tankless maintenance in Los Angeles

Los Angeles water is hard, and minerals build up inside a tankless heat exchanger. Left alone, scale causes error codes, reduced flow and early failure. We recommend descaling regularly; how often depends on your water and usage, and we can advise after the first service. Isolation valves installed during setup make descaling quick.

Tankless water heater questions, answered

How much does a tankless water heater cost to install in Los Angeles?

It depends on the unit, whether the gas line and venting need upgrading, the installation location and the permit. A conversion from a tank usually involves more work than replacing one tankless unit with another. We give you the price after looking at your setup.

Do I need a bigger gas line for a tankless water heater?

Often, yes. Tankless units draw much more gas while running than a tank heater, and many existing lines are too small. We check the gas meter and line before installing.

How long do tankless water heaters last?

With regular descaling, tankless units often last longer than tank water heaters. Hard water without maintenance shortens their life considerably.

Why does my tankless water heater go cold in the middle of a shower?

Common causes are too many fixtures running at once for the unit's capacity, scale buildup, a clogged inlet filter, or a low-flow fixture that doesn't trigger the burner. We diagnose and fix it.

How often should a tankless water heater be descaled?

In hard-water areas like Los Angeles, descaling regularly prevents most problems. The right interval depends on your water and usage.

Do I need a permit for a tankless water heater in Los Angeles?

Yes. In the City of Los Angeles the permit comes from LADBS; Glendale, Burbank, Beverly Hills, Santa Monica and Culver City issue their own. We handle it.

Can you install a tankless water heater outside?

Many models are rated for outdoor installation, which avoids indoor venting. We check the model, the location and the gas line route.

Do you repair tankless water heaters you didn't install?

Yes. We service and repair most major tankless brands.

Areas we serve

We provide tankless water heater installation and repair across Los Angeles, including Hollywood, Los Feliz, Silver Lake, Glendale, Burbank, Studio City, Sherman Oaks, Encino, Bel Air, Beverly Hills, Westwood, West Los Angeles, Rancho Park, Beverlywood, Culver City, Santa Monica and Venice. Our shop is at 826 Seward Street in Hollywood.

Related services and guides

Thinking about going tankless?

Call or text (323) 464-4700 and we'll look at your gas line, venting and household needs, or send the form on this page. Boss Plumbing is family-owned, has served Los Angeles for over 37 years and is licensed and insured; see our license information.