Tankless Water Heater Installation & Repair
Get the hot water your home actually needs. We install, repair, replace and flush tankless systems with correct sizing, clean workmanship and straight answers before the work begins.
- Licensed & insured
- Upfront flat-rate pricing
- Lifetime workmanship guarantee
Start with the problem.
We’ll find the right fix.
Not every tankless issue needs a replacement. We inspect the whole system, explain what failed and give you clear repair or replacement options.
Tankless repair
Error code, ignition failure, temperature swings, leak or shutdown?
Talk to a plumber READY TO UPGRADE?New installation
Plan a properly sized system or a complete tank-to-tankless conversion.
Schedule an estimate MAINTENANCE DUE?Flush & descale
Remove mineral buildup and keep flow, heating and efficiency on track.
Book maintenanceOne team from the first test
to the final hot-water check.
Gas or electric. Repair or replacement. We handle the details that determine whether a tankless system actually performs.
Tankless installation
Whole-home gas and electric tankless systems selected around your fixtures, incoming water temperature, fuel source and real hot-water demand.
- New installs
- Right-sized equipment
- Clean finish work
Tankless repair
Clear diagnosis for error codes, ignition failures, leaks, low flow, temperature swings and units that stop heating during use.
- Error codes
- No hot water
- Ignition & flow
Flushing & descaling
Maintenance that removes mineral scale, cleans the inlet filter and helps protect the heat exchanger in hard-water conditions.
- Mineral scale
- Filter cleaning
- Performance check
Tank-to-tankless conversion
A full feasibility review before equipment is sold: gas capacity, venting, electrical, drainage, water lines, location and permitting needs.
- Conversion planning
- Gas & vent review
- Upfront options
From an aging tank to a clean, space-saving tankless system.
This is the kind of upgrade that needs more than a new box on the wall. The complete system has to be planned, piped and tested as one installation.
Our team reviews hot-water demand, gas capacity, venting, isolation valves, condensate, expansion control and future maintenance access before calling the job complete.
- Purpose-built layoutClean piping, service access and organized components
- Performance verifiedHot-water delivery, combustion and leak testing
- Workmanship protectedBacked by our lifetime workmanship guarantee
A great tankless unit can still perform badly when the setup is wrong.
Tankless is not a simple swap. The equipment has to match the home, and the home has to support the equipment.
Before recommending a system, we look at simultaneous fixture use, temperature rise, gas or electrical capacity, venting, clearances, condensate, recirculation needs and water quality. That is how you avoid cold-water surprises and an expensive do-over.
Plan Your Upgrade- 01Hot-water demandFixtures, bathrooms, flow rate and simultaneous use
- 02Fuel or powerGas-line capacity or available electrical service
- 03Venting & drainageApproved vent path, combustion air and condensate
- 04Water qualityScale risk, isolation valves and maintenance access
- 05Code & finishClearances, shutoffs, permits and clean workmanship
Call when your system starts doing this.
No hot water
The unit does not fire, shuts down or never reaches the set temperature.
Hot-cold swings
Water changes temperature during a shower or when another fixture opens.
Error code
The display shows a fault for ignition, venting, flow, temperature or another system check.
Leak or dripping
Water appears at connections, valves, the case or condensate components.
Low hot-water flow
Hot-side pressure is weak, fixtures do not trigger the unit or the inlet filter is restricted.
Noise or scale
Rumbling, whistling or poor heating may point to mineral buildup or flow trouble.
Is tankless the right move for your home?
Sometimes it is. Sometimes a high-quality tank is the smarter value. We will show you both paths when both make sense.
Compare Water Heater OptionsA better tankless service call,
from first knock to final test.
Listen & inspect
We start with the symptoms, the current system and how your household uses hot water.
Diagnose or size
We test the cause of a failure or calculate the demand for a new system.
Explain your options
You get clear recommendations and upfront pricing before approved work begins.
Complete & verify
We finish cleanly, test hot-water delivery, check for leaks and explain maintenance.
Neighbors call us because the details matter.
“They are very friendly and provided good service. They have helped me several times and are always professional and informative. I highly recommend them.”
“Mike, Nick and the crew were professional and knowledgeable. They were honest and showed integrity. Their website was easy to use to make an appointment.”
“They quickly identified the problem and fixed it just as fast. Everyone was incredibly friendly, professional, and took the time to explain the entire process clearly.”
Upgrade the hot water.
Keep the budget comfortable.
Qualified homeowners can review financing options for tankless replacement and conversion projects before moving forward.
Explore FinancingServing homes across Southern California’s Inland Empire.
Precision One provides tankless water heater installation, repair, flushing and replacement throughout Riverside County, San Bernardino County, the San Gorgonio Pass and Coachella Valley.
Tankless water heater questions homeowners ask us.
Still deciding? Call and tell us what your current water heater is doing. We will help you choose the right next step.
Ask a PlumberHow much does tankless water heater installation cost?+
Cost depends on the unit, fuel type, hot-water demand and what the home needs to support the installation. Gas-line upgrades, new venting, electrical work, condensate drainage, water-line changes and permits can all affect the total. We inspect the setup and present options and pricing before approved work begins.
Can I replace a standard tank water heater with a tankless unit?+
Often, yes. A conversion should start with a review of gas capacity or electrical service, venting, water connections, drainage, installation clearances and household flow demand. We verify those details before recommending equipment.
How often should a tankless water heater be flushed?+
The correct schedule depends on water hardness, household use and the manufacturer's maintenance instructions. Homes with hard water may need more frequent descaling. We can inspect the unit and recommend a practical service interval.
Why does my tankless water heater go hot, then cold?+
Temperature swings can come from low flow, a dirty inlet filter, mineral scale, gas-supply problems, a sensor or ignition issue, plumbing crossover or an undersized unit. An error code helps, but the complete system still needs to be tested.
Do you repair tankless water heater error codes?+
Yes. We diagnose error codes along with ignition, flame, airflow, venting, flow, temperature and leak issues. The code is a starting point; testing confirms the actual cause before a repair is recommended.
Is gas or electric tankless better?+
It depends on the home. Gas models are often better suited to higher whole-home demand but require adequate fuel supply and venting. Electric models can fit certain applications but may require substantial electrical capacity and multiple dedicated circuits.
How long does a tankless water heater last?+
Service life varies by equipment, water quality, installation quality, usage and maintenance. Correct sizing, proper venting and regular descaling can make a major difference. We do not promise a one-size-fits-all lifespan without seeing the system.
Do you offer financing for tankless installation?+
Financing options may be available for qualified customers. You can review options before deciding on a replacement or conversion project.