
When it’s time to replace your water heater, you don’t get second chances. A poor installation leads to leaks, early failure, energy waste, and expensive repairs. At Zest Plumbing & Drain, we install water heaters the right way, safely, cleanly, and built to last in Scottsdale’s harsh water conditions.
We install both traditional tank water heaters and high-efficiency tankless systems for homeowners throughout Scottsdale and the surrounding areas. Whether your current unit failed unexpectedly or you’re planning a proactive upgrade, we handle everything from removal to final testing.
Standard tank water heater installation is $2,195 for electric or $2,395 for gas, unit included. The price you see is what you pay, with the unit, expansion tank, drain pan, code-compliant fittings, removal of the old unit, and a 2-year labor warranty all included. Online booking is available if you want to schedule without picking up the phone.
Why the price is the price: you are paying for the stocked van, the person who answered your call, the insurance on your home, and the experience that finds the problem fast, not for the minutes the wrench is turning. An experienced plumber does not cost less for being efficient. Zest Plumbing & Drain runs on a 10 to 15 percent margin, and that is what keeps us here when you call again. Read how our pricing works.
The low install price you see advertised is generally for swapping the tank and nothing else. Then the installer finds what the ad left out: the expansion tank, the drain pan, new water lines, the gas flex, even reconnecting the temperature and pressure relief drain line that code requires. Usually every one of those is an add-on, and the final bill lands nowhere near the ad. Before you book any install, ask for a plumbing contractor license number. Some of the lowest advertised prices come from outfits that are not licensed plumbing contractors, which can limit where and what they are allowed to install. We do it differently. Our price is one number: $2,195 electric or $2,395 gas, complete, code-compliant, unit included, old heater hauled away, installed by a licensed, bonded and insured plumbing contractor, AZ ROC 310821. The price we publish is the price you pay.
A proper installation is more than swapping out a tank. Here’s how we do it:
1. Proper Sizing & Evaluation
We evaluate your household size, water usage habits, and fixture demand to ensure the new system is sized correctly. Oversized units waste energy. Undersized units run constantly and fail early.
2. Safe Shut-Off & Drain Down
We safely disconnect gas or power, shut off water supply lines, and drain the existing unit without flooding your garage or home.
3. Professional Removal & Disposal
We haul away your old water heater and dispose of it properly. You don’t lift a finger.
4. Code-Compliant Installation
We install the new system with proper venting, gas connections, expansion tank evaluation, Temperature and Pressure relief valve connection, and water line connections that meet local safety standards.
5. Expansion Tank & Hard Water Consideration
In Scottsdale, expansion tanks and proper pressure control matter. We check system pressure and confirm everything is protected. Expansion tanks and PRV's are part of this check and protection process.
6. Full System Testing
We fire the system up, test for leaks, verify temperature settings, confirm proper combustion (for gas units), and ensure everything operates safely before we leave.
We don’t rush installs. We do them correctly.
Scottsdale’s water is extremely hard. That matters.
Hard water leads to sediment buildup inside tank water heaters. Over time, that sediment:
That’s why proper installation and maintenance planning are critical here. We take local water conditions into account when recommending tank size, model type, and protection options. For ongoing maintenance after installation, ask about the Zest Protection Plan, which covers annual flushing, anode rod inspection, pressure assessment, and priority scheduling. Routine maintenance is the single biggest factor in whether a tank reaches the high end of its expected lifespan in Scottsdale's hard water.
If you’ve had a heater fail in under 8-10 years, hard water is usually the reason. If you want to address the root cause and extend the life of your new water heater, pairing the installation with a water softener is the most effective approach. We install both, and often do them together as a package.
We install systems built to handle Arizona conditions.
Most Scottsdale homeowners choose between:
If you’re considering tankless, visit our dedicated Tankless Water Heater page for detailed information, or we’re happy to walk you through the pros and cons in person.
We’ll never oversell you. We recommend what fits your home and budget.
Not sure if it’s time? Watch for:
If you’re unsure, we can inspect your system and give you a straightforward recommendation.
Sometimes a water heater repair makes sense. Sometimes replacement is smarter long-term. See our full range of water heater services or schedule with one of our experts. We’ll tell you honestly.
We are not a national chain, not private equity, and not a call center. We are a local family plumbing company serving Scottsdale since 2008.
Homeowners choose us because:
We show up when we say we will. We do the job right. We stand behind our work.
That’s how plumbing used to be done, and still should be.
Water heater installation requirements can vary by city. Our licensed technicians ensure every installation meets applicable safety and plumbing standards.
If you have questions about inspections or documentation, we’re happy to discuss your specific situation.

Whether your water heater failed unexpectedly or you’re planning a proactive replacement, we’re ready to help.
Call Zest Plumbing & Drain today to schedule your Scottsdale water heater installation.
We’ll make it simple, straightforward, and stress-free, just like it should be.
Yes. We disconnect, drain, and remove your old water heater as part of the installation process and haul it away when we leave. You do not need to arrange separate disposal or transportation. For tank water heaters, we also inspect the area where the old unit was installed, the floor pan, connections, and surrounding space, before setting the new unit. If we find any moisture damage, corrosion on the gas line, or deteriorated fittings that were hidden behind the old tank, we address those before the new installation goes in rather than covering them up.
A traditional tank water heater stores a set volume of heated water, typically 40 to 80 gallons, and keeps it ready at all times. These systems have lower upfront cost, simple maintenance, and work well for most households with predictable hot water usage. Tankless systems heat water on demand as it flows through the unit, which means you never run out regardless of how many people are showering or how much laundry is running simultaneously. Tankless units are also more energy-efficient because they don't maintain a standing tank of hot water around the clock. The tradeoff is higher upfront installation cost and, in Scottsdale specifically, the need for regular descaling maintenance because the heat exchanger is vulnerable to the same mineral buildup that affects tank units. For larger homes, high-demand households, or homeowners planning to stay in place long-term, tankless often makes financial sense over time. We walk through both options with you based on your home size, usage patterns, and budget before recommending anything.
The 6-Year "You Don't Write a Check" Warranty upgrade applies specifically to qualifying traditional tank water heaters up to 50 gallons that we supply and install. Tankless systems carry the manufacturer's warranty on the unit itself, which varies by brand and model, plus our standard workmanship guarantee on the installation. Navien tankless units carry a strong manufacturer warranty out of the box, so the YDWaC upgrade is generally not offered on tankless. Before any installation, we walk you through exactly what warranty coverage applies to your specific system so there are no surprises later.
Yes, but only for the duration of the installation itself. For a standard tank replacement, water service is shut off for the time it takes to drain and remove the old unit and complete the new installation, typically two to four hours. We work efficiently to minimize that window. Before we begin, we let you know roughly how long the job will take so you can plan accordingly. If you have specific timing constraints, let us know when you schedule and we will do our best to accommodate them. Hot water is restored and tested before we leave.
In many cases, yes. When a water heater fails unexpectedly, we understand that going without hot water is not a manageable situation for most households. Same-day installation availability depends on our schedule and the unit type needed for your home. When you call, we will tell you honestly what we can do that day rather than making a promise we cannot keep. If same-day is not possible, we work to get you scheduled as quickly as the situation requires. We stock common tank sizes for Scottsdale homes and can often turn around a same-day installation without requiring you to source the unit yourself.
Yes. Every installation is performed by a licensed Arizona plumber, not a helper or apprentice working unsupervised. That matters for a few practical reasons. Water heater installation in Arizona involves gas line connections or electrical work depending on the unit type, expansion tank evaluation, pressure relief valve sizing, and venting that must meet current code requirements. A licensed plumber is accountable for that work in a way an unlicensed technician is not. It also affects your warranty, most manufacturer warranties require professional licensed installation to remain valid. And it's the foundation of our 6-Year "You Don't Write a Check" Warranty. We stand behind the installation because we know it was done correctly.
In hard water areas like Scottsdale and the broader Phoenix metro, a conventional tank water heater typically lasts 7 to 12 years. The wide range comes down to water treatment. Homes with a properly maintained water softener tend to see water heaters last toward the higher end of that range or beyond. Homes without any water treatment, running 16 to 20 grains per gallon of mineral-laden water through the system constantly, tend to see tanks fail in the 7 to 9-year window. Tankless water heaters generally last longer, 15 to 20 years with proper maintenance, but they require annual descaling in Scottsdale to achieve that lifespan. If your tank is approaching 10 years and hasn't had regular maintenance, we recommend an inspection before it fails unexpectedly rather than after.
At Zest Plumbing & Drain, standard tank water heater installation in Scottsdale starts at $2,195 for a 40 or 50 gallon electric unit and $2,395 for a 40 or 50 gallon gas unit. A standard Navien tankless installation runs $6,495. These are flat-rate, all-inclusive prices that cover the unit, removal of the old water heater, expansion tank, drain pan, all required code-compliant connections, and our 2-year labor warranty plus the manufacturer's 6-year warranty on the tank and parts. We publish these prices online and accept online booking, which means you see the exact price before you commit and we arrive with the right unit ready to install. Most Scottsdale water heater installs in the broader market run $1,400 to $3,500 depending on what is and is not included in the quoted price. The wide range is usually because budget quotes leave out items like the expansion tank, drain pan, code upgrades, and old unit disposal that we include as standard.
Every standard tank installation at our published price includes the new 40 or 50 gallon water heater (Professional series), removal and disposal of your old unit, an expansion tank, a drain pan piped to the floor or appropriate drain location, a drip leg on the gas line if needed for gas units, all required code-compliant connections and fittings, full system testing including a leak check and combustion verification on gas units, and our 2-year labor warranty alongside the manufacturer's 6-year tank and parts warranty. There is no trip charge, no dispatch fee, and no fuel surcharge added to the published price. The only items that fall outside the standard price are non-standard situations like gas line resizing in older homes, venting modifications, relocating the unit to a different part of the home, or attic installations with limited access. If we encounter any of those during the install, we explain the work and pricing before we proceed.
Yes. Use the Book Now button anywhere on our website to access our online booking tool. Pick the unit that fits your home (40 or 50 gallon, electric or gas), see the price, choose an installation time that works for you, and confirm. The job is scheduled directly into our dispatch system at the price shown, and we arrive with the right unit ready to install. Most customers complete the booking in under two minutes. Photos of your current water heater and surrounding area help us make sure we bring the right hardware on the truck, so we ask you to upload one or two if you have them. If your situation is non-standard or you would rather talk to a person before booking, calling us at 480-618-1750 works just as well. The choice is yours.