How Long Does a Water Heater Installation Take?

water heater installation

Installing a new water heater is an important home improvement, but many homeowners wonder how much time it will take. Whether you’re replacing an old unit or upgrading to a larger model, understanding the installation process helps you plan your day and avoid surprises.

Here’s what to expect when scheduling a water heater installation.

Typical Installation Time

On average, a standard water heater installation takes 2–4 hours from start to finish. However, the exact timing depends on several factors:

  • Type of Water Heater: Tankless models can take longer than traditional tank-style units due to additional plumbing and electrical work.

  • Existing Setup: Replacing a water heater of the same type and size is usually faster than switching to a different style or location.

  • Condition of Plumbing: Older or corroded pipes may need extra work, extending the installation time.

  • Permits and Inspections: Some areas require permits or post-installation inspections, which can add time.

Step-by-Step Installation Process

  1. Turn Off Utilities
    The plumber shuts off the water supply and power (or gas) to ensure a safe installation.

  2. Drain the Old Water Heater
    Water is drained from the existing tank, and any connections are carefully removed.

  3. Remove the Old Unit
    The old water heater is disconnected and removed from the space.

  4. Prep the Area
    The plumber inspects plumbing connections, vents, and electrical or gas lines to ensure everything is ready for the new unit.

  5. Install the New Water Heater
    The new unit is positioned, connected to water lines, and hooked up to power or gas.

  6. Fill and Test
    The tank is filled with water, the system is checked for leaks, and the water heater is powered on to ensure proper operation.

  7. Clean Up
    All packaging, the old unit, and any debris are removed, leaving your space clean and ready for use.

Tips for a Smooth Installation

  • Schedule in Advance: Book your installation at a time when you can be home and prepared.

  • Clear the Area: Make sure the space around your old water heater is accessible.

  • Ask About Permits: Your plumber can handle necessary permits to avoid delays.

  • Plan for Hot Water Downtime: You may be without hot water for a few hours during installation.

When to Call Davis Plumbing & Heating, Inc.

If you’re ready to replace or install a new water heater, Davis Plumbing & Heating, Inc. provides fast, professional service in Riverside County, Menifee, Perris, and surrounding areas. Our licensed technicians ensure your water heater is installed safely and efficiently.

Signs you need professional installation:

  • Your current water heater is old, leaking, or inefficient

  • You’re upgrading to a larger or tankless unit

  • You want to ensure proper installation and avoid future problems

Final Thoughts

Water heater installation doesn’t have to be a major disruption. With a professional plumber handling the process, you can expect a safe, efficient, and timely installation, leaving you with reliable hot water for years to come.

📞 Call Davis Plumbing & Heating, Inc. at (951) 657-0393 to schedule your water heater installation today.