Electric tankless water heater — Boulder, CO

Last updated: September 24, 2026

What affects the price

Replacing a water heater involves several variables that change the final bill. The main factors are the type of unit you choose—like standard tank models versus tankless systems—and the fuel source, whether gas or electric. Installation complexity also plays a role, especially if we need to update venting, gas lines, or electrical wiring to meet current building codes. Relocating a unit or upgrading to a higher capacity will also shift the bottom line.

About this service

Electric tankless heaters are compact units that heat water instantly using high-powered electrical coils. These are ideal for small spaces or point-of-use needs, like a single sink or a guest bathroom. Because they draw significant power, it is vital to have the correct electrical wiring and circuit capacity installed. If you are considering switching to an electric tankless unit, we can evaluate your home's electrical panel to ensure it can safely support the power requirements of the system.

Frequently asked in Boulder

Also serving nearby: Longmont · Westminster · Arvada · Thornton · Lakewood

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More on this: DOE water heating — efficiency and sizing.

Service area details

Serving all of Boulder — population 105,898; about 3,937 residents per square mile across 26.9 sq mi. ZIP codes covered include 80301, 80302, 80303, 80304, 80305, 80306, 80307, 80308.

Neighborhoods served in Boulder: Gunbarrel, Louisville, Lafayette, Longmont, Erie, Westminster — and every surrounding area.