Tankless Water Heater Installation Services in Phoenix, AZ
Tankless water heaters, also known as on-demand systems, are a popular choice for homeowners looking for high efficiency, space savings, and endless hot water. If you are tired of running out of hot water or paying to heat a tank 24/7, a tankless unit might be the perfect solution.
Switching to Tankless Hot Water
Tankless systems heat water only when you need it, eliminating the standby energy loss of traditional tanks. We provide complete installation and conversion services, including:
- Sizing and selecting the right BTU/GPM unit for your family's needs.
- Safely removing and disposing of your old tank unit.
- Installing new venting and gas lines as required by the tankless system.
- Ensuring proper electrical and piping connections for peak performance.
- Converting traditional tank locations to space-saving wall-mounted units.
Water Heaters We Service
Tank, tankless, hybrid, gas, electric — every water heater eventually needs attention. We service all of them and won’t push a replacement when a repair will do.
Tank Water Heater Repair
Thermocouples, anode rods, heating elements, and T&P valves. Most repairs are same-day with parts on the truck.
Tank Water Heater Replacement
When repair isn't worth it, we replace with a properly sized unit and install code-compliant pans, expansion tanks, and shut-offs.
Tankless Water Heater Installation
Endless hot water and a smaller footprint. We size for your household and gas-supply capacity — not just the spec sheet.
Heat Pump (Hybrid) Water Heaters
Lower operating cost than electric tanks, eligible for federal and APS rebates. We'll tell you whether your home is a fit.
Annual Flushing and Maintenance
Phoenix hard water cuts a tank's life in half if it's not flushed. An annual visit pays for itself in years of extra service.
Emergency Water Heater Failure
No hot water and the unit is leaking? We respond same-day, contain the damage, and get you back to hot water as fast as the install allows.
No matter your industry, our commercial plumbers provide service you can rely on.
Why Choose Liberty Plumbing for Tankless Water Heater Installation?
We’re not just here to clear your drains – we’re here to keep your plumbing running strong for the long haul.
Fast response times with same-day service available
Licensed, bonded, and insured plumbers
Safe, effective tools that protect your pipes
Upfront, honest pricing with no hidden fees
Local expertise in Phoenix, Flagstaff, and Prescott

Is Tankless Right for Your Home?
While tankless systems offer significant benefits, they are not ideal for every home. We help you weigh the factors:
- Energy Efficiency: Tankless systems use up to 34% less energy than conventional storage heaters.
- Space Savings: They are compact and wall-mounted, freeing up valuable utility room or garage space.
- Lifespan: Tankless units often last 20 years or more, significantly longer than traditional tanks.
- Upfront Cost: The initial purchase and installation cost is higher than a conventional unit, but savings accumulate over time.
We provide honest advice to determine if the long-term benefits align with your budget and hot water habits.
What to Expect During Installation
Installing a tankless unit is a specialized job that differs greatly from standard tank installation. Our experts ensure every detail is handled correctly:
- Location Assessment: Confirming the venting and fuel source location is safe and compliant.
- Fuel Source Upgrade: Often, gas lines or electrical circuits need to be upgraded to handle the higher demand of the tankless unit.
- Venting Setup: Installing specific, specialized venting required for tankless exhaust.
- Final Testing: Testing the water flow and temperature settings to ensure immediate, endless hot water.

Schedule a Tankless Consultation
Ready to enjoy the benefits of endless hot water and energy savings?
Call Liberty Plumbing today to schedule a consultation. We will help you select the perfect tankless system for your home and provide an installation quote.