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Tank and Tankless Water Heater Installation in Phoenix, Arizona

25+ Years of Experience

Family-Owned Business

Industry Leading Warranties

NSF/ANSI Tested and Certified Components

Licensed, Bonded, and Insured

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Why Choose Our Service Agreement?

Protect your Phoenix home with our hassle-free Water Heater Service Agreement. Enjoy worry-free maintenance and long-term savings designed for Arizona families.

No Upfront Fees

Only pay at time of service

Flexible Payment Options

Pay monthly or pay-as-you-go

Locked-In Pricing

Protection against unexpected price increases

Priority Service

Warranty coverage and fast scheduling

Trusted Local Team

Family-owned business, no subcontractors

Why Choose Our Service Agreement?

Protect your Phoenix home with our hassle-free Water Heater Service Agreement. Enjoy worry-free maintenance and long-term savings designed for Arizona families.

No Upfront Fees

Only pay at time of service

What Your Neighbors Say About Us

What’s Included With Your Water Heater Package

From installation to yearly care, we’ve got you covered with dependable service and homeowner-friendly benefits.

Standard 40/50 Gal Package
Standard installation - ground floor no obstructions
Included ✅
Haul away of your old water heater
Included ✅
First Year Maintenance (Flush)
Included ✅
Lead free ball valve for water shut off
Included ✅
Stainless steel water supply lines
Included ✅
Drain pan if applicable
Included ✅
Dielectric/brass nipples & union set
Included ✅
Ongoing Maintenance & Perks
1st Year Maintenance (Flush)
Included ✅
Priority scheduling within 24–48 hours
Included ✅
Discount Anode Rod Every 2 Years for Standard 40/50 Gal Water Heaters
25%
Discount On Going Flushes Yearly
25%
Discount on RO Filter Services - not covered under a CWS Service Agreement
25%
Discount on additional plumbing services
10%

Professional-Grade Water Heaters Installed in Phoenix & Across the Valley

Find the Right Water Heater for Your Home

From standard storage tanks to high-efficiency hybrid and tankless systems, we offer professional-grade water heaters built to handle Arizona’s demands. Installed by licensed experts, our options deliver reliable hot water, longer lifespans, and energy savings compared to big box units.

Trusted Brands We Install: Bradford White, Rheem, Ruud, Lochinvar, AO Smith, GE, Rinnai, Navien, and more.

If you are curious about a model not listed on our website—Contact us!

Standard 40/50 Gallon Electric or Gas 

Reliable and cost-effective, these standard water heaters are the most popular choice for Phoenix homeowners. Available in both gas and electric, they provide consistent hot water for families while offering the best balance of performance and affordability.

75 Gallon Gas Water Heaters

Perfect for large households or higher hot water demand, the 75-gallon Bradford White delivers plenty of capacity without running out. Built with professional-grade components, it offers a longer lifespan and greater efficiency compared to big box units.

80 Gallon Electric Water Heaters

Designed for homes with heavy hot water use, the 80-gallon Bradford White Electric combines capacity with durability. With professional-grade construction, it ensures dependable hot water while lasting longer than standard store-bought models.

GE Electric and Gas Water Heaters

GE water heaters offer dependable, efficient hot water for Arizona homes, with options in both natural gas and electric. These 50-gallon tall units deliver strong first-hour performance, long-lasting durability, and solid energy efficiency—making them a top choice for families who want reliable hot water at an affordable installed price.

Gas Tankless Navien & Rinnai Water Heaters

Tankless systems heat water on demand, giving you endless hot water while saving space. High-efficiency Navien models are ideal for Arizona households that want modern convenience, lower utility bills, and long-lasting performance.

*Pricing is for swap out with existing similar tankless model. If you are converting from tank to tankless, we require a free in person consultation.

Hybrid Electric Water Heaters

Hybrid water heaters use advanced heat pump technology to cut energy costs by up to 60%. They provide reliable hot water for Phoenix families while being eco-friendly and efficient — the perfect upgrade for homeowners who want long-term savings.

Electric Tankless Water Heaters

Provide hot water on demand without the need for a bulky storage tank. They’re a compact option for smaller households or specific applications where gas isn’t available. While not as common as gas tankless systems, they can be a good fit for certain homes. Contact us for available models and pricing.

Big Box vs Professional Grade Water Heaters

Wondering whether to buy from a big box store or a professional installer in Phoenix? Here’s why professional-grade water heaters offer better performance, value, and peace of mind.

Feature
Big Box Stores ❌
Professional Grade ✅
Build Quality
Basic components, thinner linings
Durable construction, commercial-grade parts
Drain Valves
Often plastic
Heavy-duty brass or metal
Initial Cost
Lower upfront
Higher quality investment
Longevity
6–8 years
12–20 years
Parts & Repairs
Limited, sometimes proprietary
Standard parts, easy to service
Serviceability
Limited access
Easy technician access
Warranty Support
Manufacturer hotline only
Local, contractor-backed support

Big Box vs Professional Grade Water Heaters

Wondering whether to buy from a big box store or a professional installer in Phoenix? Here’s why professional-grade water heaters offer better performance, value, and peace of mind.

Feature

Build Quality

Big Box Stores ❌

Professional Grade ✅

Basic components, thinner linings

Durable construction, commercial-grade parts

Drain Valves

Big Box Stores ❌

Professional Grade ✅

Often plastic

Heavy-duty brass or metal

Initial Cost

Big Box Stores ❌

Professional Grade ✅

Lower upfront

Higher quality investment

Longevity

Big Box Stores ❌

Professional Grade ✅

6–8 years

12–20 years

Parts & Repairs

Big Box Stores ❌

Professional Grade ✅

Limited, sometimes proprietary

Standard parts, easy to service

Serviceability

Big Box Stores ❌

Professional Grade ✅

Limited access

Easy technician access

Warranty Support

Big Box Stores ❌

Professional Grade ✅

Manufacturer hotline only

Local, contractor-backed support

 Protect Your Investment with Ongoing Maintenance

Routine maintenance keeps your water heater running efficiently and extends its lifespan. We offer affordable flushes, part replacements, and priority service to keep your system at peak performance.

Standard 40/50 Gal Package

Standard installation - ground floor no obstructions

Included ✅

Haul away of your old water heater

Included ✅

First Year Maintenance (Flush)

Included ✅

Lead free ball valve for water shut off

Included ✅

Stainless steel water supply lines

Included ✅

Drain pan if applicable

Included ✅

Dielectric/brass nipples & union set

Included ✅

Ongoing Maintenance & Perks

1st Year Maintenance (Flush)

Included ✅

Priority scheduling within 24–48 hours

Included ✅

Discount Anode Rod Every 2 Years for Standard 40/50 Gal Water Heaters

25%

Discount On Going Flushes Yearly

25%

Discount on RO Filter Services - not covered under a CWS Service Agreement

25%

Discount on additional plumbing services

10%

Upgrade Your Water Heater for Extra Protection & Efficiency

From leak detection to advanced anode rods, we offer upgrade options that extend the life of your water heater and protect your Phoenix home.

Leak Detection + Auto Shutoff

Water Heater Leak Prevention System is an automatic safety device designed to help protect your home from water damage caused by water heater leaks or failures. The system uses a moisture sensor placed near the base of the water heater to detect leaking water. When moisture is detected, the system automatically shuts off the water supply to the water heater, helping to minimize flooding and potential property damage.

$375.00

Electronic Anode Rod (20-Year Warranty)

An Electric Anode Rod, also known as a Powered Anode Rod, is a corrosion-prevention device designed to protect a water heater tank without being consumed like a traditional sacrificial anode rod. Instead of dissolving over time, the electric anode uses a low-voltage electrical current to prevent corrosion inside the tank, helping extend the life of the water heater.

$295.00

¾” Full Port Drain Valve

Upgrading to a ¾” full port drain valve improves the effectiveness of routine water heater maintenance, reduces the risk of clogging, and helps extend the life of the water heater by allowing sediment buildup to be properly removed.

$175.00

Thermal Expansion Tank

Homes with pressure-reducing valves, check valves, or backflow devices are considered closed systems and typically require a thermal expansion tank per plumbing code and water heater manufacturer requirements. A thermal expansion tank protects your plumbing system and water heater from pressure buildup caused by heated water in closed systems. It helps prevent leaks, valve failure, and premature equipment damage and may be required by plumbing code or manufacturer specifications.

Replacement: $350.00

Add New: $475.00

Group Photo of Complete Water Systems LLC Technicians

Why Us?

Family-owned with over 24 years of experience, Complete Water Systems is Arizona’s trusted provider of water filtration, plumbing, and service solutions. We are committed to delivering high-quality, innovative solutions with integrity and professionalism. Whether you need home filtration, plumbing services, or expert advice, our dedicated team ensures your water is clean, safe, and tailored to your needs. Contact us today to discover how we can help you achieve pure and safe water.

Easy Financing 

EASY FINANCING (TERMS 3 to 60 months / APRs range from 0 to 35.9%) Pay in installments for your purchases. It takes just a minute to see your options, and checking eligibility won’t impact your credit score. Learn more

Checkout This Transformation!

Old Tank Gas Water Heater
Tankless NAVIEN NPE-240A2 water heater conversion

Need Your Water Heater Serviced?

Complete Water Systems Technician Working on a Tankless Water Heater

Service and Repair

Flush, Anode Replacements, Heater Elements, Thermostats, Expansion Tanks, Valves, Lines, 3rd Party System Installation and more...

Complete Water Systems Truck

We've Got You Covered

We proudly serve all of Arizona with expert water filtration and plumbing services. From Phoenix to every corner of the state, we're here to ensure you have clean, safe water whenever you need it.

North Phoenix Area

Anthem

New River

Carefree

Cave Creek

Glendale

Paradise Valley

Peoria

Phoenix

Scottsdale

South Phoenix Area

Avondale

Chandler

Guadalupe

Queen Creek

San Tan Valley

Sun Lakes

Tempe

West Phoenix Area

Buckeye

El Mirage

Goodyear

Litchfield Park

Morristown

Sun City

Sun City West

Surprise

Tolleson

Youngtown

East Phoenix Area

Apache Junction

Fountain Hills

Gilbert

Mesa

Rio Verde

Others with Dispatch Fee

Casa Grande

Dewey-Humboldt

Eloy

Florence

Maricopa

Prescott

Prescott Valley

Sedona

Wickenburg

Gold Canyon

Flagstaff

Payson

Tucson

Coolidge

Need Help Choosing the Right System?

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