If your water heater has stopped working, you’re probably wondering how long does it take to install a water heater. The good news is that most water heater installations are completed in just a few hours. At Anytime Plumbing, Heating & Cooling, we’ve installed thousands of water heaters in and around Las Vegas. Here’s what you need to know about how long water heater installation takes and what can affect that timeline.
Average Installation Time
While every home and system is a little different, here’s what you can typically expect:
- Standard tank water heater installation: 2 to 4 hours
- Tankless water heater installation: 4 to 8 hours
If you’re replacing an old unit with the same type and size, the process is usually fast and straightforward. Switching to a different type (like from gas to electric or from tank to tankless) takes longer but may offer long-term savings in efficiency and space.
What Affects Water Heater Installation Time?
To give you the most accurate estimate for your water heater installation, consider these variables that can affect the timeframe.
1. Type of Water Heater
Tankless systems require additional plumbing, gas line work, or electrical adjustments. Traditional tank water heaters are simple and quick to install.
2. New Installation vs. Replacement
Replacing an old unit with the same style takes less time. First-time installs (e.g., for a room addition or remodel) require new hookups and more labor.
3. Gas or Electric
Electric water heaters are typically easier to install than gas models, which may require additional venting or gas line checks.
4. Location and Accessibility
Units tucked into tight closets, attics, or basements may take longer to remove and replace than those in garages or utility rooms.
5. Code Requirements and Permits
If your home needs updated plumbing or electrical work to bring it up to code, or if a permit is required, installation can take longer. Our team will walk you through what’s needed.
Water Heater Installation Duration FAQ
How long does it take to get a permit for water heater installation in Las Vegas?
Obtaining a permit can add 1–2 business days to the overall timeline. Whether or not you need a permit depends on jurisdiction and project size. While a standard replacement often doesn’t require a lengthy permitting process, switching to a different type of heater or upgrading from tank to tankless may require permits. Our team will secure the permit if you need one.
Can a plumber install a water heater in one day?
Yes. A licensed plumber can usually install a water heater in a single visit. Typically, it will take between 2 and 4 hours to install a water heater. More complex setups can take longer.
Do I need to be home during the water heater installation?
Yes, someone 18 or older must be present during water heater installation to give our technicians access, discuss any findings, and review the completed installation before we leave.
What should I do to prepare for my water heater installation?
To prepare for water heater installation, you should clear the area around your current unit, secure any pets, and ensure a clear path to the installation site. Your technician will handle the rest.
Restore Your Hot Water Today
You don’t have to wait days to restore comfort to your home. If you need to install a new water heater, our team will respond quickly. Call Anytime Plumbing, Heating & Cooling today at 725-237-1727 to request a quote or schedule a water heater installation. We’ll have your hot water flowing again as soon as possible.Â
