Top-Rated Tankless Water Heater Services in San Antonio, TX
Anchor Plumbing Services provides end-to-end tankless water heater solutions for San Antonio homes and businesses. From installation to flushing and repair, we tailor your system to match your home size, usage, and water conditions.
We size your system by GPM and temperature rise, design proper venting/condensate or 240V circuits, and install to code under Master Plumber oversight. Our licensed, insured, background-checked technicians also diagnose/repair flow sensors, igniters, thermistors, controllers, and scale-impacted heat exchangers, then commission the unit for stable setpoints.
To protect efficiency and warranties, we offer annual flush & tune maintenance and water-quality solutions (NOVO-certified) for San Antonio’s hard water. Expect same-day and 24-hour service, flat-rate pricing with written quotes, and work backed by our satisfaction guarantee.
Expect same-day/24-hour service, flat-rate pricing with written quotes, and work backed by a satisfaction guarantee—all from a team trusted with a 4.9★ rating, 1.5K+ Google reviews, a Yelp Award, and 5,000+ customers served.
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Tankless Water Heater Installation in San Antonio, Texas
Get a properly sized, code-compliant tankless system installed the right way. We calculate BTU and flow rate (GPM) needs based on your fixtures, temperature rise, and simultaneous usage. Then we recommend gas or electric models, condensing or non-condensing, and the best location (indoor or outdoor) for performance and access. Our team mounts the unit, routes intake/exhaust venting, installs a condensate drain where required, and verifies NG/propane gas line sizing or 240V circuit capacity. We use PEX or copper to meet code and manufacturer specs. Expansion tanks are added on closed systems to protect components and warranty coverage. We commission the unit and lock in stable temperatures.
Gas Tankless Installation
We design gas tankless installs around safe combustion and full output. Our plumbers verify natural gas or propane supply, meter capacity, and line sizing to meet appliance BTU demand. We select approved vent materials and route intake/exhaust with proper clearances. For condensing models, we add a condensate neutralizer and drain to protect your plumbing and meet code. Connections are pressure-tested and leak-checked. Clearances and service access are planned before mounting. The unit is commissioned with target setpoints, recirculation options (if installed), and homeowner walkthrough. Result: code-compliant, efficient, and durable hot water on demand.
Electric Tankless Installation
Electric tankless systems require adequate panel capacity. We confirm amperage, breaker count, and wire gauge for the specific model. Dedicated 240V circuits are installed per manufacturer and NEC requirements. Multi-module or multi-breaker units are balanced to reduce nuisance trips and maintain stable output. We mount the unit with service access in mind, connect water lines, purge air, and verify temperature rise under load. Final commissioning includes setpoint tuning and homeowner education. You get stable hot water, safe wiring, and inspection-ready documentation.
Indoor vs. Outdoor Tankless Water Heater Installation
Placement affects efficiency, serviceability, and lifespan. Indoors, we consider wall-mount height, sealed air intake or combustion air, proper venting, and drip protection. Outdoors, we use weather-rated enclosures, clearances, and freeze protection methods for San Antonio’s occasional cold snaps. We assess routing for gas/electric, condensate, and recirculation lines so maintenance stays simple. The goal is longevity and easy access for flushing, filter cleaning, and diagnostics. Our team recommends the location that best fits your layout, noise preferences, and code constraints—then installs and commissions for consistent performance.