Tankless Water Heater Installation Near Brea, California
Tankless Water Heater Installation Near Brea, California
Hot water on demand — installed the right way.
Tankless units are amazing, but they have to be installed and sized correctly. Gas line, venting, condensate, and water flow all need to match the heater’s requirements. Our plumbers handle the full installation, test it under load, and show you how to get the best performance.
We install popular Southern California tankless brands and can replace an existing tank or upgrade an older tankless.
What’s Included in a Service Lion Tankless Install
- Evaluate current water heater location and venting
- Confirm fuel type (natural gas/propane/electric)
- Size the tankless by GPM and temperature rise
- Install or upgrade venting per manufacturer specs
- Connect hot/cold, gas, and condensate drains
- Add isolation valves and service ports (recommended)
- Start-up and performance test at fixtures
- Go over owner settings and maintenance
If your current gas line or venting is undersized, we’ll tell you up front what’s needed to do it right.
Choosing the Right Tankless Size
Tankless water heaters are sized by flow rate (GPM) — how many fixtures you want to run at once. We’ll help you choose a unit to handle:
- 2–3 showers at the same time
- Shower + dishwasher + washing machine
- Larger homes with multiple bathrooms
- Homes that want hot water to far-away fixtures
We’ll also factor in your incoming water temperature (SoCal is easier than cold climates, but we still size it properly for winter temps).
Recirculation Options (Faster Hot Water)
Hate waiting for hot water? We can install or enable recirculation with your new tankless (when supported), so you get hot water to distant fixtures faster. Great for larger or two-story homes.
Why Choose Service Lion for Tankless Installation?
- Local Brea / North OC plumbing pros
- We install to California and manufacturer requirements
- We protect floors and clean the workspace
- We explain maintenance (flushing/descaling) so your tankless lasts
- Clear, up-front installation pricing
- We can service what we install
Tankless vs. Tank — When Tankless Wins
- You’re out of hot water all the time
- You’re adding bathrooms or a suite
- You want to save space in the garage
- You want better efficiency and lower energy usage
- You plan to stay in the home and want long-term value
If tankless isn’t the best fit for your setup, we can quote a high-recovery tank instead.
Ready to Schedule Your Tankless Install?
Call (657) 669-0259 or request service online. We’ll confirm you’re in the Brea / Orange County service area and schedule your tankless water heater installation.
Tankless Water Heater Offers & Services
Related Plumbing Services
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Tankless Water Heater Installation FAQs
Can you replace my old tank with a tankless the same day?
Often yes — it depends on venting and gas line requirements. We’ll tell you during the estimate.
Do I need a bigger gas line for tankless?
Sometimes. Tankless units can need more BTUs. If your current line is undersized, we can upgrade it.
How often do tankless water heaters need maintenance?
Usually once a year in hard-water areas — we can add a flushing/descaling visit.
Can tankless work with low-flow fixtures?
Yes, but we’ll match the unit to your home’s flow so it doesn’t keep shutting off.
Do you install homeowner-supplied tankless units?
In many cases, yes — we still have to install it to code and to the manufacturer’s specs, and we’ll explain labor/warranty differences.
