Tankless Water Heater Installation & Repair
Certified Noritz and Navien installers, with free estimates on every new install
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Who Installs and Repairs Tankless Water Heaters?
We do, and tankless units make up a growing share of our water heater calls. We are certified installers for Noritz and Navien, we give free estimates on new installs, and every unit we put in comes with a thermal expansion tank and a sediment trap. When a tankless unit stops making hot water, we try to get you on the schedule the same day, and for emergencies we can typically be there in 30 minutes to an hour.
- ✓New tankless installs, $2,000 to $5,000
- ✓Heat exchanger replacement, $800 to $2,000
- ✓Igniter cleaning and repair
- ✓Yearly descaling
- ✓Sediment filters and water softeners
- ✓Certified Noritz and Navien installers
- ✓Free estimates on new installs
Written by Nick Moore, Owner and C-36 Licensed Plumbing Contractor, CA Lic. #1097482
Third-generation plumber, 20+ years in the trade.
What We Cover
Services We Provide
Tankless Installation
New installs with a thermal expansion tank and sediment trap on every job, from certified Noritz and Navien installers.
Tankless Repair
Heat exchanger replacement for leaking units, and igniter service when the unit no longer sparks strongly enough to light.
Descaling & Protection
Yearly descaling, plus the sediment filter and water softener that keep hard water from destroying the unit.
How We Work
Why Choose Regal?
Free Camera After We Clear It
On a drain call we cable the line first, then we typically run a camera through it free of charge as a courtesy, so you can see why it backed up.
Shielded Bands, Not Rubber
On sewer repairs we typically use a heavy-duty Husky band with a full metal shield, not the rubber Fernco band held on by two hose clamps.
30 Minutes to an Hour on Emergencies
A real person answers around the clock, and we can typically reach an emergency call within 30 minutes to an hour.
1-Year Warranty on Labor
Our labor comes with a 1-year warranty. Anything we note on your invoice as not covered by warranty isn't included.
Explore
Other Services We Offer
Emergency Plumbing
Rapid-response emergency plumbing for Ontario, CA and surrounding cities. We’re on call around the clock.
Learn More →Drain Cleaning
Professional clearing of kitchen, bathroom, and main sewer line blockages.
Learn More →Sewer Line Repair
Camera inspection, trenchless repair, and full sewer line replacement.
Learn More →Water Heater Services
Installation and repair of tank, tankless, and heat pump water heaters.
Learn More →Slab Leak Detection
We find slab leaks with acoustic equipment, by pressurizing the line and with thermal equipment, then reroute most of them through the attic.
Learn More →Hydrojetting
High-pressure water jetting to scour pipe walls and restore full flow.
Learn More →Gas Leak Detection
Gas line leak detection and repair.
Learn More →Water Filtration
Whole-home water softeners and filtration systems installed.
Learn More →Pipe Repair
Expert pipe repair and replacement for copper, PVC, and galvanized systems.
Learn More →Commercial Plumbing
Commercial plumbing service for businesses.
Learn More →Service Coverage
Cities We Serve
We serve these cities from our shop in Ontario.
Real Photos
From Recent Jobs
Pricing
How Much Does a Tankless Water Heater Cost to Install?
A typical tankless installation runs $2,000 to $5,000. The application decides where your job falls in that range, along with whatever the site needs before the new unit can go in.
Every install we supply includes a thermal expansion tank and a sediment trap. Estimates on new installs are free, and financing is available.
Lifespan
How Long Does a Tankless Water Heater Last?
Most tankless units last 10 to 20 years. Maintenance is what separates a unit that reaches 20 from one that struggles at 10.
Tankless technology has come a long way over the last 15 years. Early units were overbuilt and arrived before the technology had settled. Current models are dependable when they are installed right and kept up.
Repairs
What Goes Wrong With a Tankless Water Heater?
The most common tankless failure we see is a leaking heat exchanger. Fixing it means taking the unit apart, installing a new heat exchanger and rebuilding it, which takes 3 to 6 hours and runs $800 to $2,000.
Igniter trouble is the other common call. When the ignition coils stop throwing a strong enough spark, we open the unit and clean them.
A tankless heater has far more components than a tank, so there are more places for a problem to start.
Maintenance
Does a Tankless Water Heater Need Maintenance?
Yes, once a year. A descaling solution has to be run through the unit to clear the scale out, and most owners are never told.
We are regularly called to tankless units giving trouble around year 5. When we ask when the unit was last descaled, the answer is usually that the owner didn't know it needed it.
Hard water destroys tankless units. At a minimum, put a sediment filter in front of the unit so sediment never gets inside. We recommend a water softener on every tankless install.
Some owners decide not to wait for the next failure. We recently replaced a tankless unit whose parts were still under warranty, because the homeowner wanted a brand-new unit with a water softener and filtration combo in front of it so the problems would stop.
We see a lot of tankless units in Ontario, where the newer tracts near the Buzzers minor league stadium are mostly PEX with tankless water heaters, and the city water is very hard.
Large Households
Is a Tankless Water Heater Worth It for a Big Family?
For a large household, yes. A tankless unit heats water as you use it, so whoever showers last during the morning rush gets the same hot water as whoever went first.
The water stays as hot at the end of a long shower as it was at the start. If your family has ever run a tank dry before everyone got through, this is the problem tankless solves.
A tank still has real advantages, and we install both. Our water heater repair and replacement page covers tank units.
Tank vs. Tankless
How Does a Tankless Compare to a Tank?
The lifespans overlap. A tankless unit lasts 10 to 20 years depending on maintenance, and a standard tank lasts about 10 to 15.
The installed prices overlap. A typical tankless install runs $2,000 to $5,000 depending on the application, and a standard 40 to 50 gallon tank replacement runs $2,100 to $2,800.
A tank is the simpler machine. Fewer parts can fail, upkeep costs much less, and if your water supply is ever shut off you still have a full tank on hand. A tankless unit asks for a yearly descaling in return for hot water that doesn't run out.
Brands
Which Tankless Brands Do You Install?
We are certified installers for Noritz and Navien, and we offer top-quality brands on every new tankless install.
Brand matters on a tankless unit. Some brands bring us far more frequent repair calls than others, and a cheap water heater tends to come with problems.
Venting
Why Does Tankless Venting Matter?
A tankless unit is forced air, not atmospheric, so its venting has to be right and airtight. Venting that is wrong or leaks can push carbon monoxide into the space you live in.
Venting is one of the first things we check on a tankless unit someone else installed.
Financing available. Learn about financing options.
Common Questions
Frequently Asked Questions
Ask about our current specials when you call.
Thinking About Going Tankless?
Call for a free estimate on a new tankless install
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