Greater San Antonio's Trusted Plumbing Experts
Water Heater Installation in Castroville & San Antonio, TX
When the hot water runs out faster than your shower does—or your old unit finally calls it quits—you deserve more than a quick fix. You deserve a solution built to last. At Five Star Plumbing, we help families and businesses in Castroville, San Antonio, and nearby communities enjoy dependable hot water again with expert water heater installation. From space-saving tankless units to efficient heat pump water heaters and trusted gas models, our licensed local plumbers handle every step with care, code compliance, and a focus on long-term comfort.
Expert Water Heater Installation Services
Whether you’re replacing a standard tank or upgrading to a tankless water heater, we’ve got you covered. We also install heat pump water heaters that pull warmth from the surrounding air to heat your water efficiently—even during colder months in Castroville and San Antonio.
Installing a new water heater isn’t just a box to check—it’s about making sure your home stays comfortable every day. After all, few things are more frustrating than running out of hot water. With over 15 years of experience serving families across Bexar and Medina County, we know how essential reliable hot water is—especially when Texas weather can swing from chilly mornings to scorching afternoons in a heartbeat.
We manage every detail of the installation process—from connecting your cold water supply to securing the right permits—so your water heater works reliably and meets Texas codes:
We also provide $150 off installation when you purchase your water heater through us—a thank-you for trusting our local team.
A heat pump water heater is a smart choice for homeowners who want to cut energy bills without compromising performance. These systems use ambient air to heat your water, making them one of the most energy-efficient solutions available.
Whether you’re in a Castroville ranch-style home or a San Antonio townhome, we make sure your new heater fits your space and needs.
- Disconnecting and removing your existing water heater
- Evaluating your current water supply pipes and connections
- Installing tankless, traditional, or heat pump water heater systems
- Connecting your unit to the gas supply or electric power
- Ensuring all local building codes are met for safety and performance
- Help you select the right size and brand for your home
- Set up your unit in heat pump mode for maximum efficiency
- Explain how to maintain your system year-round
The Installation Process – What to Expect
We believe in clarity and transparency. Here’s how our water heater installation process works:
No shortcuts. No surprises. Just professional service that leaves your home cleaner than we found it.
- Old System Removal – We safely disconnect and remove your existing water heater.
- Connection Setup – We prepare the cold water supply, connect the hot water supply line, inspect the cold water inlet, and make sure the gas water heater or electric unit is properly hooked up.
- Drainage and Safety – A drain pan is installed under your tank with a connection to a floor drain. We also add a pressure relief valve and thermal expansion tank to protect against water pressure spikes.
- Final Testing – We verify the tank temperature, install the junction box cover, inspect the ground wire, and ensure safe, leak-free operation.
Hot Water Where and When You Need It
A reliable hot water supply is essential—especially for large households or homes with high-demand appliances. We make sure your system delivers consistent hot water to every hot water faucet without running cold halfway through your shower.
Whether it’s early-morning routines in a busy San Antonio home or evening cleanup in a Castroville kitchen, your new unit will provide the reliable hot water you count on.
Drain Pan, Safety, and Energy Efficiency
Every water heater installation includes a proper drain pan setup. This is critical in two-story homes or homes with water heaters in closets or attics. If a leak occurs, water is directed to a floor drain, preventing costly water damage.
We take every step seriously—like checking the pressure relief valve and thermal expansion tank—to make sure your system stays safe and stable, even as water temperatures and pressure shift. It’s one of the ways we help protect your home and your investment.
And if saving money matters to you (it does to us too), we’ll help you find a solution that’s energy-efficient from day one. Whether you go with a classic gas water heater or a newer heat pump model, our goal is to give you reliable hot water without the high utility bills.
Why Choose Five Star Plumbing for Your Installation?
We’re proud to offer water heater installation in:
We know local water quality and plumbing infrastructure. That’s why our installations are tailored to your property and community.
- Local and Family-Owned – Based in Castroville and proudly serving San Antonio and surrounding towns like Hondo, LaCoste, and Helotes.
- Licensed and Certified – Our plumbers are certified by the Texas State Board of Plumbing Examiners.
- Experienced – Over 15 years of plumbing and water heater experience.
- Warranty-Backed – We offer a 1-year installation warranty on most water heaters.
- Flexible Options – Choose from leading brands and models with guidance from our team.
- Bexar County – Helotes, Leon Valley, and more
FAQs – Water Heater Installation
Most standard installations take 2–3 hours. Weather conditions, especially during extreme Texas heat or winter cold snaps, may slightly impact scheduling and setup, especially for outdoor or garage installations.
Castroville Location
Greater San Antonio Location
Schedule Your Installation Today
Don’t let cold showers or outdated equipment disrupt your day. Get ahead of issues with a professional water heater installation by the trusted local team at Five Star Plumbing.
Call Us
(210) 673-0797
Service Hours
24/7 Emergency Availability
Office Location
2780 FM 471 N, Castroville, TX 78009