Tankless Water Heater Installation & Repair
Bay Area's #1 Choice

The most significant benefit is an endless supply of hot water. Unlike traditional tanks that store a finite amount, tankless units heat water on demand as it flows through a high-efficiency heat exchanger. This means you won’t run out of hot water, even if multiple showers are running simultaneously.

If you are replacing an existing tankless unit, installation typically takes 3 to 5 hours. However, if you are converting from a traditional tank to a tankless system, the process can take a full day (8+ hours). This is because tankless units often require larger gas lines, specialized stainless steel or PVC venting, and new electrical connections.

"Endless" water is not the same as "instant" water. The unit still needs a few seconds to ignite and heat the water, and that water still must travel through your pipes to reach the faucet. To get truly instant hot water, we can install a system with an integrated recirculation pump that keeps hot water moving through your lines.

Because tankless units heat water so rapidly, minerals like calcium and magnesium can quickly "scale" onto the heat exchanger. If not flushed annually with a descaling solution, this buildup reduces efficiency, restricts water flow, and can eventually cause the heat exchanger to overheat and crack.

Yes. Since there is no large tank of water to keep hot 24/7, you eliminate "standby heat loss." Tankless units only consume gas when you turn on a hot water tap. For many households, this results in a significant reduction in natural gas consumption compared to a standard tank heater.

This happens when you turn a faucet off and then back on quickly. A small pocket of unheated water remains in the plumbing between the two hot water cycles. Higher-end 2026 models mitigate this with a small internal "buffer tank" that keeps the output temperature consistent during rapid on-off use.

Most tankless units require a higher BTU (British Thermal Unit) input than a standard tank. This often means the gas line feeding the heater must be upgraded to a larger diameter (typically 3/4 inch) to ensure the unit doesn't "starve" for fuel when firing at maximum capacity.

If you live in an area with hard water, a softener or a scale-inhibitor is highly recommended. Hard water is the leading cause of premature failure for tankless heat exchangers. Using conditioned water can significantly extend the life of the unit and reduce the frequency of mandatory descaling flushes.

Yes, specific outdoor-rated models are designed to be mounted on an exterior wall. This saves interior square footage and eliminates the need for complex indoor venting. These units include internal freeze protection to ensure the components remain safe during cold snaps.

Yes. Tankless heaters are highly computerized and will display specific error codes (e.g., ignition failure or venting issues) if they detect a problem. We provide 24/7 emergency diagnostics to decode these errors, clear blockages, or repair sensors to get your hot water back online immediately.