Built for desert homes
110° summers that push air conditioners to the limit and hard water that wears out water heaters and fixtures — we know your climate.
Tankless Water Heaters in St. George
Hot water when you need it, not all day
A tank heater keeps 40 or 50 gallons hot around the clock, even through a 110° afternoon when nobody is home. A tankless unit fires only when a tap opens, so it wastes less energy standing by, hangs on the wall instead of filling a closet and never runs out halfway through the third shower. Looked after properly, tankless units also tend to outlast tanks by years.
Getting that result in St. George takes a careful install. Most gas units need a larger gas line and different venting than the tank they replace, and our plumbers handle the gas line work, venting, water connections and permit in one job. We size the unit to how many fixtures you run at once, and we fit isolation valves so routine descaling is quick. Because hard water is a tankless unit’s main enemy, we’ll also talk through softening before we finish.
- Never Runs Out Hot water for as long as the tap is open.
- Service Valves Fitted Descaling takes minutes, not a teardown.
- One Team, Whole Job Gas, venting, water and permit handled together.
Is Tankless Right?
Good reasons to go tankless
If several of these fit your home, a tankless system is worth a serious look.
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Hot Water Runs Out
Back-to-back showers leave the last person with cold water.
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You Need the Space
A wall-mounted unit frees up a closet or garage corner.
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Your Tank Is Aging
Replacing anyway is the natural time to switch.
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Lower Standby Waste
No energy spent keeping a full tank hot all day.
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A Big Tub or New Bath
More demand than your current tank can keep up with.
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Staying Put
A longer-lasting unit pays off when you plan to stay.
What We Do
Tankless service from install to upkeep
Everything a tankless water heater needs over its life.
- Tank-To-Tankless Conversions Old tank removed, lines rerouted and a new unit mounted.
- Sizing & Load Calculation Matched to your peak flow and incoming water temperature.
- Gas & Venting Upgrades Larger gas supply and the correct vent for the new unit.
- Descaling Flushes Heat exchanger cleaned of hard water scale.
- Tankless Repair Error codes, ignition, flow sensors and temperature swings.
- New Construction Placement, gas and venting planned before the walls close.
How It Works
Switching to tankless, step by step
Most conversions are finished in a single day.
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Site Visit
We check your gas line, venting path, water quality and space.
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Size and Price
You get unit options and a price that includes the upgrades.
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Install
Tank out, unit mounted, gas, vent and water connected.
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Test and Explain
We run hot water at every fixture and show you the controls.
Southern Utah crews. Desert‑tough service.
Why Southern Utah homeowners choose Element
Two offices, one local team
Real offices in St. George and Hurricane, with crews serving Washington, Santa Clara, Ivins, Cedar City and Springdale — not a call center.
Award-winning work
Voted Best of Southern Utah Gold in 2025 and 2026, and Best of Iron County 2025.
Here 24/7
Burst pipe at 2 a.m. or no AC on a 110° Sunday — a real technician answers the call.
Thinking about going tankless?
Get sizing and options from our St. George plumbers. Financing is available.
Maintenance Membership
Ready for 110° desert summers.
Seasonal checkups for every system in your home.
Seasonal checkups catch small problems before they become emergencies — and keep your systems running efficiently all year.
- Annual whole-home plumbing inspection
- Water heater flush & safety check
- Seasonal heating & AC tune-ups
- Priority scheduling for members
- Member savings on repairs
Tankless water heater questions in St. George
Does hard water ruin tankless water heaters?
It doesn’t have to, but it’s the biggest threat. Scale builds on the heat exchanger and cuts efficiency, then triggers error codes. Regular descaling through the service valves we install keeps it in check, and a water softener slows the buildup a great deal. Skip both and the unit won’t reach its full lifespan.
How long does a tankless water heater last?
A well-maintained tankless unit often lasts many years longer than a typical tank, frequently close to twenty. In St. George, “well maintained” mainly means descaling on schedule. A unit that’s never flushed in our hard water will lose efficiency and may need repairs far sooner.
Will I need a bigger gas line?
Usually. A gas tankless unit needs much more gas at full fire than a tank heater, and many existing lines are too small. We check the size and length of your line and what else runs on it, then upsize where needed. That work is included in the price we give you.
How do you choose the right size?
We add up how many fixtures you’re likely to run at once, like two showers and the dishwasher, and how much the unit has to raise the incoming water temperature. Groundwater in St. George is warmer than in mountain towns, but it still varies by season, so we size for winter.
Can I finance a tankless conversion?
Yes. A conversion costs more up front than a tank swap because of the gas, venting and labor involved, and financing lets you spread that out. If a tank still makes more sense for your budget, see water heater replacement and the current tank offer.
*Offers cannot be combined with other promotions or applied to dispatch fees. No cash value. Must present offer at time of service. Call for details.