Tankless Water Heater Replacement in Phoenix, AZ

Donley A/C & Plumbing in Phoenix, AZ, offers unparalleled tankless water heater replacement expertise. As a family-owned business, we pride ourselves on being reliable experts.

Our team provides top-quality service with the utmost efficiency and professionalism. Choose Donley A/C & Plumbing for a seamless and trustworthy replacement.

Ensure your home enjoys continuous hot water with help from Donley A/C & Plumbing. Schedule tankless water heater replacement in Phoenix by calling 602-787-3956.

Why Replace Your Tankless Water Heater Instead of Repair? 

Replacing a tankless water heater instead of repairing it can be wise in certain situations. As tankless units age, they may require more frequent and costly repairs. When tankless water heater repair costs start approaching the price of a new unit, replacement becomes the more economical choice. 

Plus, newer models offer improved energy efficiency, significantly saving you money on utility bills over time. Replacing an old unit can also provide a more consistent hot water supply and advanced features for a better user experience.

Newer units also typically come with updated warranties, offering your investment peace of mind and protection. Replacing an aging tankless water heater can enhance performance, efficiency, and reliability.

Replace your tankless water heater by contacting us at 602-787-3956 today.

How Often Is Replacement Necessary?

Most tankless water heaters need replacement around every 15 to 20 years, a life span influenced by regular maintenance, usage intensity, and water quality. Proper care can extend this time frame, while harsh conditions may shorten it. Frequent maintenance checks can help identify when a replacement is more beneficial than repairs. 

In regions with hard water or households with high usage, replacement may be needed sooner due to increased wear and tear on the system. Regular assessments by professionals can guide homeowners on the optimal timing for replacement to ensure a reliable hot water supply.

Contact Donley A/C & Plumbing at 602-787-3956 to schedule your tankless water heater replacement.

Hire a Professional for Replacement

Hiring a professional for tankless water heater replacement is vital. Professionals have the expertise and tools to install the unit safely and correctly. They understand local building codes and regulations, ensuring the installation is compliant and safe.

A professional installation also typically comes with warranties and guarantees, providing your investment peace of mind and protection. Experts can also offer valuable advice on the best model for your specific needs, optimizing your home’s energy efficiency and water heating performance.

Schedule tankless water heater replacement by calling 602-787-3956.

Expert Tankless Water Heater Replacement

Donley A/C & Plumbing’s expert tankless water heater replacement process includes:

  • Consultation: We’ll discuss your needs and help you select the ideal unit.
  • Old unit removal: We’ll safely remove the old water heater while adhering to safety protocols.
  • Installation: Our technicians will install the new unit, ensuring proper connections and code compliance.
  • Testing: We’ll perform rigorous checks for leaks and efficiency, securing your system’s optimal operation.
  • Education: We’ll guide you through the new system’s features and maintenance tips after installation and testing.
  • Ongoing support: Count on us to provide post-installation assistance and support.

For a seamless upgrade to your home’s hot water system, schedule tankless water heater replacement with Donley A/C & Plumbing. Call 602-787-3956 to get started.

Plumbing - Water Heater | Donley

Why Choose Us?

Choosing Donley A/C & Plumbing for your tankless water heater replacement means choosing a company deeply rooted in community values. Our involvement in the local community reflects a genuine commitment to business and the well-being of our neighbors. Known for our responsiveness and honest service, Donley A/C & Plumbing stands out for providing reliable, transparent, and prompt solutions.

Experience community-driven, honest service with Donley A/C & Plumbing in Phoenix, AZ. Schedule tankless water heater replacement in Phoenix by calling 602-787-3956.

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Expert & reliable service since 1976

Since 1976, Donley A/C & Plumbing has remained committed to providing expert and reliable service. Our experienced technicians and plumbers receive over 120 hours of continuous training per year, and all our work is fully guaranteed. Every staff member undergoes a rigorous drug screening and background check before joining our team or working with our valued customers.

As a local family-owned and -operated company, we strive to give back and support the community. Our commitment to excellence is why we’re two-time winners of the Better Business Bureau Ethics Award. It’s all part of what separates us from countless others in the industry.



Responsive and honest service



Our friendly staff will work with you to schedule a convenient appointment. The plumber will call you when in route to introduce themselves, provide an ETA, and confirm the reason for the service call.


Honest & Upfront Pricing

All pricing is listed in the plumber’s price book, ensuring no hidden fees or costs. We'll work with you on financing options by request.


Swift Installation

Our plumbers have the skill and experience to complete the repair or installation on the day of service. You won’t have to worry about a drawn-out and complicated process.



The plumber will review the completed repair or installation with you, including warranties. Once the job is complete, we're available to answer any questions or concerns.

Reliable & Expert Service | Donley Reliable & Expert Service | Donley Reliable & Expert Service | Donley Reliable & Expert Service | Donley Reliable & Expert Service | Donley
Valley-Wide Service | Donley

Valley-Wide Service, 7 Days a Week

We serve the entire valley with technicians available seven days a week. Even when problems arise on weekends or after hours, our professionals are only one call away. We proudly serve these cities:


  • Ahwatukee
  • Anthem
  • Carefree
  • Cave Creek
  • Chandler
  • Fountain Hills
  • Gilbert
  • Glendale
  • Goodyear
  • Mesa
  • Peoria
  • Phoenix
  • Queen Creek
  • Scottsdale
  • Sun City
  • Surprise
  • Tempe
  • Tolleson
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