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3580 Polaris Ave #17, Las Vegas, NV 89103
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Tankless Water Heater Conversion from Tank-Style Heater in Las Vegas, NV
If your traditional tank water heater is leaking, out of warranty, or just can’t keep up, it’s the perfect time to upgrade to a tankless system. But a tank-to-tankless conversion isn’t a drop-in swap—it often means updating gas or electric service, venting, water piping, and sometimes location. Active Plumbing provides tankless water heater conversions from tank-style heaters in Las Vegas, Henderson, North Las Vegas, Summerlin, and nearby communities—handling both emergency replacements and planned upgrades.
✓ Hard-water smart: Conversions tailored for Las Vegas hard water and easy descaling.
✓ Licensed local pros: Clean, code-compliant tankless conversions in the Las Vegas valley.
✓ From tank to tankless in one project: We remove the old tank and install a properly sized tankless unit.
✓ Gas, venting & piping addressed: We check and upgrade what’s needed—not just “hook it up” and hope.
✓ Hard-water smart
✓ Licensed local pros
✓ From tank to tankless in one project
✓ Gas, venting & piping addressed
What our Clients think about us
Your satisfaction is our priority.
What Is a Tankless Water Heater Conversion from Tank-Style Heater?
A tankless conversion is more than just swapping one box for another. It typically includes:
Removing your old tank-style heater
Installing a new, properly sized tankless unit (often wall-mounted)
Ensuring your gas line and regulator (for gas units) can supply enough fuel
Adding or modifying venting and combustion air to match the new heater’s requirements
Reworking hot/cold water connections and adding isolation/flush valves
Handling condensate drain routing for condensing units
Starting up and testing the new system so it delivers stable, reliable hot water
Done right, you go from a bulky, aging tank to a compact, efficient, on-demand water heater that is easier to live with and maintain.
Why Choose Active Plumbing
We design the whole conversion—not just swap units: Gas sizing, venting, location, and water lines are all checked and upgraded as needed.
Right-sized tankless, not guesswork: We size your new unit for fixture count, usage patterns, and incoming water temperature.
Hard-water aware installs: We set conversions up with service valves and descaling in mind, because Las Vegas water is tough on equipment.
Space and layout smart: We consider garage, closet, attic, or exterior wall options and explain what’s realistic.
Emergency or planned: We can jump in when a tank fails or plan an upgrade ahead of time.
Licensed & insured: Nevada License #0047021, trusted locally for tankless conversion work.
Immediate Actions (What to Do Now)
If your current tank is leaking, turn off the cold water supply valve above the heater.
If you can safely access it, shut off gas or power to the existing water heater.
Take photos of your current heater, including the label, surrounding piping, gas/electric connections, and vent.
Make note of how many bathrooms, showers, big tubs, and hot-water appliances you use regularly.
Call Active Plumbing at (702) 438-3357 and let us know you want to convert from a tank-style heater to a tankless water heater, and whether you currently have hot water or not.
Common Tank-to-Tankless Conversion Situations
Old tank is leaking, rusted, or out of warranty and due for replacement
Family has outgrown the hot water capacity of a single or even dual tanks
Want to free up floor space in a garage, closet, or utility room
Upgrading during a remodel, repipe, or home addition
Replacing an improperly installed or undersized older tankless with a properly designed system
If your tank is already on its last legs, conversion now can prevent back-to-back replacements and give you a long-term upgrade.
Phone Consultation & Pre-Sizing
You call (702) 438-3357, tell us about your hot water issues and home layout, and whether your current heater is working or failed. We start by estimating the size of tankless unit you’ll likely need based on fixture count and demand.
On-Site Evaluation & Final Sizing
We visit your home to inspect your existing tank location, gas line size and routing, venting, electrical needs, and wall space. We confirm proper tankless size and model and evaluate whether the unit should stay in the same spot or move slightly.
Clear Proposal & Conversion Plan
After seeing the real-world conditions, we give you a clear, itemized estimate covering removal of the old tank, installation of the new tankless, and any required upgrades (gas, venting, condensate, etc.) to meet code and manufacturer specs.
Old Tank Removal & Site Prep
On installation day, we turn off gas/power and water, drain and remove the tank-style heater, and prep the conversion area. That may include mounting brackets, moving or adjusting piping, and planning vent and condensate routes.
Tankless Installation, Connections & Venting
We install the new tankless heater, run or upgrade gas piping, install hot/cold lines with isolation/flush valves, set up proper venting and condensate disposal (for condensing units), and make sure everything is secure and code-compliant.
Startup, Testing & Homeowner Walkthrough
We restore gas and water, purge air from the lines, power up the unit, and test for leaks, proper combustion/venting, stable temperature, and flow. We set an appropriate temperature and show you how to operate, shut down, and maintain the tankless, including future descaling.
Tankless Water Heater Conversion from Tank-Style Heater Active Plumbing fix now
On-site evaluation and sizing confirmation for your new tankless heater
Safe removal and disposal of your old tank-style water heater (if in scope)
Installation of a properly sized tankless unit, wall-mounted where appropriate
Gas, water, vent, and condensate connections updated to code and manufacturer requirements
Startup and functional testing for leaks, temperature stability, and vent performance
Basic training on operation and maintenance, including descaling expectations for Las Vegas water
Costs & Timelines (What to Expect)
Most straightforward tank-to-tankless conversions can be completed in a single scheduled visit, depending on gas, vent, and access.
You’ll receive upfront, line-item pricing after the on-site evaluation so you know exactly what your conversion includes.
Cost drivers include unit size and type, gas line upgrades, venting path and material, condensate routing, possible electrical needs, and how complex it is to work in the existing location.
We’ll be clear about what’s required vs. what’s optional, and why each piece matters for safety, performance, and code.
Insurance & Claims Help
Replacing an old, leak-prone tank with a tankless system can reduce future leak risk, which many buyers appreciate.
For properties with water damage from a failed tank, our documentation can clarify what failed and what was upgraded as part of the conversion.
(Any insurance, value, or inspection outcomes depend on your insurer, appraiser, and inspector—this is not financial or legal advice.)
Risks of Waiting (Why Act Now)
Starved gas supply: Undersized gas lines or regulators can cause nuisance shutdowns and poor performance.
Improper venting: Wrong vent material or routing can lead to condensation damage or unsafe exhaust.
No descaling access: Conversions without isolation/flush valves make maintenance harder and shorten unit life.
Hidden leaks and corrosion: Sloppy water connections or condensate handling can damage walls, floors, or framing.
Warranty and code issues: Non-compliant installs can cause warranty headaches and failed inspections.
A tank-to-tankless conversion should solve problems, not create new ones—doing it right the first time matters.
Methods, Materials & Quality Standards
Manufacturer and code aligned: We follow installation manuals and local plumbing/mechanical codes for gas, vent, and water.
Proper gas system evaluation: We don’t hook up a tankless until we’re satisfied your gas supply can support it (or you approve needed upgrades).
Quality valves and fittings: We use reliable isolation valves, unions, and fittings to make service and future repairs easier.
Neat, serviceable layout: Piping and valves are arranged so future maintenance and descaling are straightforward.
Hard-water readiness: We advise on maintenance intervals and options to help your tankless survive Las Vegas water.
Frequently Asked Questions
Can you always reuse the same location as the old tank?
Often yes, but not always. It depends on venting, wall space, gas line routing, and clearances. We’ll show you what’s possible on site.
Will I need a bigger gas line?
Sometimes. Many homes do need gas line or regulator upgrades for tankless. We’ll test and tell you clearly if that’s required.
Does a tankless system really save space?
Yes. Most units are wall-mounted and much smaller than a full tank, freeing up floor space in garages or closets.
What about hard water in Las Vegas—will it ruin a tankless?
Hard water is tough on any heater. The difference is proper installation and regular descaling. We set you up with service valves and advise realistic maintenance schedules.
Can I convert from an electric tank to a gas tankless?
Sometimes, but it often involves new gas piping and venting. We can evaluate options and explain what’s involved.
Do you offer tankless water heater conversions near me in Las Vegas?
If you’re in Las Vegas, Henderson, North Las Vegas, Summerlin, or nearby communities, yes—Active Plumbing performs tankless water heater conversions from tank-style heaters.
More Active Plumbing Water Heater Services
Proudly Serving All of Las Vegas
Address: 3580 Polaris Ave #17, Las Vegas, NV 89103
Phone: (702) 438-3357
Hours: Open 24 hours
Email: service@activeplumbinginc.com
Active Plumbing is Las Vegas–based and available 24/7 for residential and commercial plumbing across Southern Nevada. We handle emergency plumbing, drain cleaning, sewer line repair, slab leaks, water heater repair and installation (including tankless), water softeners and filtration systems, leak detection, gas line installation, and full bathroom and kitchen plumbing upgrades—fast, professional, and backed by strong warranties.
Serving Las Vegas, Henderson, North Las Vegas, Summerlin, Paradise, Spring Valley, Enterprise, Sunrise Manor, Boulder City, and the surrounding neighborhoods.
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Hours: Open 24 hours
3580 Polaris Ave #17, Las Vegas, NV 89103