Water Heater Services
Hot water is a necessity, not a luxury. H3 Plumbing & Drains keeps your hot water flowing with fast, reliable water heater services — from routine maintenance to full replacement on tank and tankless units.
About This Service
At H3 Plumbing & Drains, we provide reliable, high-quality water heater services for residential and commercial customers across Spartanburg, SC. We service all major brands including Rheem, Rinnai, Bradford White, Bosch, AO Smith, and Navien. Whether you're dealing with no hot water, inconsistent temperatures, rust-colored water, or a leaking tank, our licensed technicians will diagnose the problem and deliver The Most Correct Solution.
What's Included
- Tank water heater installation & replacement
- Tankless (on-demand) water heater installation
- Water heater diagnostics and repair
- Anode rod replacement and tank flushing
- Thermostat and heating element replacement
- Gas, electric, and hybrid heat pump units
- All major brands serviced (Rheem, Rinnai, Bradford White, etc.)
- Commercial water heater service
Types of Water Heaters
Electric
Electric water heaters use heating elements to warm water inside an insulated tank. They're simple to install, don't require a gas line or venting, and are a great fit for homes without natural gas. State water heaters and Rheem are reliable brands for electric tank installs in a range of capacities. We install, repair, and replace electric units of all sizes.
Gas
Gas water heaters use a burner to heat water quickly and tend to cost less to operate where natural gas is available. They recover faster than electric units, making them ideal for larger households with higher hot water demand. American water heaters and Rheem are popular choices for dependable gas tank systems. We handle full installation, venting, and repairs.
Tankless
Tankless (on-demand) water heaters heat water only when you need it — no standby heat loss and no bulky tank. They deliver a continuous supply of hot water, last 20+ years, and save space and energy. Rinnai and Navien are the brands we most commonly install for tankless systems. We size, install, and service tankless units from all major brands.
Water Heater Brands We Service
We install, repair, and maintain all major water heater brands. Explore our brand pages for details.
Why Choose H3 Plumbing & Drains?
Licensed & Insured
All work performed by licensed, insured plumbing professionals.
The Most Correct Solution
We diagnose the root cause and fix it right — no band-aids, no unnecessary upsells.
Same-Day Service
We respond fast. Most service calls are scheduled same-day or next-day.
Honest, Upfront Pricing
We quote before we work. No surprise charges, ever.
Frequently Asked Questions
Should I repair or replace my water heater?
If your water heater is under 8 years old and the repair is minor, repair often makes sense. If it's over 10–12 years old or repairs are recurring, replacement is usually more cost-effective. We'll give you an honest assessment either way.
What are the benefits of a tankless water heater?
Tankless (on-demand) units heat water only when needed — no standby heat loss. They last 20+ years (vs. 8–12 for tank units), provide unlimited hot water, and are more energy-efficient. The upfront cost is higher but pays back over time.
My water heater is leaking — is this an emergency?
Yes, treat it as one. A leaking water heater can fail completely and flood your space. Shut off the cold water supply to the tank and call us immediately.
Need Water Heater Services?
Call H3 Plumbing & Drains today for fast, reliable service across Spartanburg and surrounding communities.
(864) 308-1159