Built for mountain & desert homes
Frozen lines in Jackson and Flagstaff, hard water in St. George, high-altitude heaters in Durango — we know your climate.
Tankless Water Heaters
Heat only the water you use
A tankless water heater fires up when you open a hot tap and shuts off when you close it. There’s no tank to keep warm through the night and no waiting for it to recover after the third shower. The unit hangs on a wall, freeing floor space, and typically outlasts a tank. Tankless water heater cost runs higher up front, and most of that goes into getting the details right: enough gas supply, the right venting and a unit sized for how cold your incoming water gets.
Altitude matters here. Thinner air changes how a gas burner performs, and winter water in mountain towns arrives much colder than in the desert. We size each unit for the flow your household needs at your elevation and water temperature, and handle the gas, electrical and venting work. Hard water is the other enemy, so we also descale and repair tankless units. To compare with a tank, see water heater replacement.
- Sized for Elevation Burner output matched to your altitude and water temperature.
- One Team, Start to Finish Gas line, venting and plumbing handled together.
- Descaling Service Hard-water scale flushed from the heat exchanger.
Is Tankless Right for You?
Reasons homeowners go tankless
If several of these sound like your house, tankless is worth pricing.
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Running Out of Hot Water
Back-to-back showers that end cold.
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Short on Space
A closet or garage corner you’d like back.
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An Aging Tank
A replacement is coming anyway.
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A Big Soaking Tub
A fill that would drain a standard tank.
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Lower Standby Energy
No tank to keep hot around the clock.
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Staying for Years
Long service life rewards the higher upfront cost.
What We Do
Tankless installation and service
New installs, conversions and care for the unit you already have.
- New Installation Gas and electric on-demand units, mounted and connected.
- Tank-To-Tankless Conversion The tank removed and the system adapted for tankless.
- Gas Line Upsizing A bigger line where the burner needs more fuel.
- Venting Code-compliant venting for safe combustion.
- Descaling Mineral buildup flushed out to restore flow and efficiency.
- Tankless Repair Error codes, ignition failures and flow sensor faults.
How It Works
What tankless water heater installation costs
The unit, the gas line, the venting and any electrical work make up the price. Here’s how we get to a firm number before any work starts.
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Measure Demand
We count fixtures and check incoming water temperature.
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Check Gas & Venting
We confirm the supply and vent route can support the unit.
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Approve the Plan
Unit, changes and price laid out before any work.
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Install and Test
Mounted, connected, fired and checked at full flow.
Local crews. Mountain-tough service.
Local in five communities
Real offices and crews in St. George, Hurricane, Durango, Jackson and Flagstaff — 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 heat on a Sunday — a real technician answers the call.
Thinking about tankless?
Every Element location installs and services tankless water heaters. Ask for a tank and tankless price side by side.
Maintenance Membership
Ready for desert summers & mountain winters.
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 (St. George & Hurricane)
- Priority scheduling for members
- Member savings on repairs
Tankless water heater cost, pros and cons
Does a tankless water heater work at high elevation?
Yes, when it’s chosen and set up for the altitude. Gas burners lose some output in thinner air, and mountain water can arrive near freezing in winter, so the unit has to be sized with both in mind. An undersized unit at altitude delivers lukewarm water when two showers run at once.
How often does a tankless unit need descaling?
In hard-water areas, about once a year is a good starting point. Scale coats the heat exchanger, which cuts flow and can trigger error codes. A water softener slows the buildup considerably and protects the rest of your plumbing too.
Do all Element locations install tankless water heaters?
Yes. Each team installs, descales and repairs them: Flagstaff, Durango, St. George & Hurricane and Jackson. Your local page covers the conditions that team designs around, whether that’s a frozen winter supply or desert water loaded with minerals.
How much does a tankless water heater cost to install?
Nationally, a gas tankless unit often runs about $2,500 to $6,000 installed. The unit itself is the biggest piece, and a tank-to-tankless conversion adds more when it needs a larger gas line, new venting or a new electrical circuit. Electric units cost less to buy but may need heavy electrical work. Those are national ranges that vary by home. Element gives a written, upfront price for your home, with a tank option priced beside it if you’d like to compare.
What are the pros and cons of a tankless water heater?
Pros: hot water that doesn’t run out, no standby heat loss from a tank, a wall-mounted unit that frees floor space, and a service life that often doubles a tank’s. Cons: a higher upfront price, a flow limit that two showers and a dishwasher can push past if the unit is undersized, yearly descaling in hard-water areas, and a small delay before hot water reaches a distant tap. At altitude, sizing matters even more. If you stay in the home for years, the long life and lower running cost usually win; if you’re selling soon, a tank may be the sensible choice.
Can I finance a tankless water heater?
Yes. Tankless installations can be paid over time, which helps with the higher upfront cost. See financing for current plans, and ask us to price a tank option at the same visit if you’d like to compare. Seeing both numbers together makes the choice easier.
*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.