Tankless Water Heater Installation & Conversion in Temecula, CA
Thinking about converting from a tank water heater to tankless? Williams Mechanical Co installs and services Navien, Noritz, and Rinnai tankless units throughout Temecula. We handle the full gas line conversion, venting, and permitting — one call, one crew. Temecula's hard water averages 250 PPM calcium, so we also include a descaling plan with every install to protect your investment long-term.
Frequently Asked Questions
Common questions about tankless water heater conversions in your area.
How much does it cost to convert to tankless in Temecula?
A full conversion including the Noritz EZTR40 — a Japanese-made all-in-one kit with venting included — runs around $5,000 installed. For homeowners wanting a premium option, we also install the Navien NPE. Free estimates and Wisetack financing available.
How long does a tankless conversion take in Temecula?
Most conversions are completed in one to two days. The Noritz EZTR40 is designed as an all-in-one replacement kit so we're not sourcing separate venting components — cleaner install, less time. And if you need hot water during the conversion, we offer rental water heaters so you're never without.
What if my furnace shares a vent with my water heater?
This is common in Temecula homes. When the furnace and water heater share a flue, the tankless unit needs its own dedicated vent run. In that case the Navien NPE is often the better choice since it uses a smaller PVC exhaust — and we'll give you an accurate quote once we see the existing setup. Shared venting situations can add to the overall cost.
Whats the process?
We provide a full range of HVAC services, including installation, maintenance, and repair of heating and cooling systems. Our team ensures your home or business stays comfortable year-round.
Why Choose Us
Simple upgrades like programmable thermostats, regular maintenance, and sealing leaks can significantly enhance your home's energy efficiency. Our experts can provide tailored recommendations.
Tax Credit
In case of a plumbing emergency, turn off the water supply to prevent further damage and contact us immediately. Our team is available 24/7 to handle urgent plumbing issues.
