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Tankless Water Heater Installation & Repair in Winston-Salem

Upgrade Your Home or Business with Efficient Tankless Water Heating

Traditional water heaters store and continuously heat large volumes of water, which can waste energy and occupy significant space. All-Phase Heating & Cooling provides professional tankless water heater installation and repair throughout Winston-Salem, helping homeowners and business owners enjoy on-demand hot water, improved efficiency, and reliable performance.

Our locally owned and family-operated team has been delivering personalized service, expert solutions, and hands-on attention to every plumbing project since 2007. Whether you’re upgrading an older system or repairing an existing tankless unit, we combine technical skill with customer-first service to ensure your water heating works seamlessly.

Call (336) 537-5047 or contact us today to schedule a consultation or service.

Are You Getting the Most from Your HVAC System?
We make it easy for you to schedule this essential service with our Home Care Club Maintenance Plan.
STAY COZY, STAY COOL - SEASON AFTER SEASON
  • $50 OFF
    All-Phase Heating & Cooling All-Phase Heating & Cooling
    Any Repair
    Valid Nov 1, 2025 - Dec 31, 2025
  • FREE Water Heater
    All-Phase Heating & Cooling All-Phase Heating & Cooling
    with a Full System Replacement

    Get a FREE Water Heater with every Full System Change Out - for a limited time only! Replace both and save BIG! Call (336) 537-5047 to schedule.

    Valid Nov 1, 2025 - Dec 31, 2025
  • 15% OFF
    All-Phase Heating & Cooling All-Phase Heating & Cooling
    Any Repairs for Teachers and School Staff

    Residential/Light Commercial: Service, Maintenance & Installation.

    Valid Sep 1, 2025 - Dec 31, 2025
  • $50 OFF
    All-Phase Heating & Cooling All-Phase Heating & Cooling
    New Customer Special

    Save $50 on your first repair!

    Valid Nov 1, 2025 - Dec 31, 2025
  • 20% OFF
    All-Phase Heating & Cooling All-Phase Heating & Cooling
    On Indoor Air Quality Products

    Contact us today about claiming your 20% discount on indoor air quality products.

The Advantages of a Tankless Water Heater 

Tankless water heaters provide a range of advantages over traditional storage systems, including:

  • On-Demand Hot Water: Tankless units heat water only when needed, providing endless supply without waiting for a tank to refill and reheat.
  • Energy Efficiency: Reduced standby energy usage lowers utility bills, benefiting both homes and businesses.
  • Space Savings: Wall-mounted units free up floor space in basements, closets, or utility rooms.
  • Longevity: Properly maintained tankless water heaters can last 20 years or more, outliving many conventional tanks.
  • Customizable Flow: Units can be scaled for larger homes or commercial spaces to meet multiple simultaneous demands.

A professional installation ensures proper sizing, placement, and integration with your plumbing system, maximizing the performance and lifespan of your tankless water heater.

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    "Great Price"

    My wife and I are retired and have lived in multiple states before. With our almost 70 years of living experience, if someone ask me to list the best HVAC company, we would name All-Phase Heating and Cooling company without any hesitation. This company<

    - Tony M.
    "I have never been disappointed with the service that All-Phase has given me."

    They are on time and always call before arriving and follow-up after the service. Techs are very polite and knowledgeable of our heating and cooling system, and explain the work that they have performed. Five stars all the way.

    - Kenneth S.
    "This was our second HVAC purchase from All Phase Heating & Cooling and the experience was as great as the first time."

    Anthony, Bradly, Jay, Evan, Jamey and Jessica were as professional, kind, courteous, punctual and detail oriented as any organization we have ever dealt with. Hats off to Brad & Gina as they have built a world class organization. If you are fortunate enough to discover these folks, you will have a HVAC service and repair company that you can trust, for life! Many thanks to all. Kris & Nancy Buckles

    - Kris B.
    "I called All-Phase after having an issue with another company. I am glad I did!"

    All-Phase was very professional and knowledgeable, and they were able to resolve my heating issue the same day I called. I want to thank our technician Matt for taking the time to explain the process and to answer all of my concerns. If you are having heating or cooling issues don’t hesitate to call them.

    - Joe H.
  • Carrier Factory Authorized Dealer
  • NATE Certified
  • Mitsubishi Diamond Dealer
  • Carrier
  • Piedmont Natural Gas
  • Duke Energy
  • Lewisville-Clemmons
  • Home Advisor

Our Tankless Water Heater Installation Process

Installing a tankless water heater requires careful planning and expertise. 

Our team follows a thorough process to deliver reliable results:

  1. System Assessment: We evaluate your household or business water needs, reviewing pipe size, flow rate, and fuel source.
  2. Proper Unit Selection: We recommend a tankless system that matches your hot water demand and integrates with your existing plumbing and electrical or gas infrastructure.
  3. Professional Installation: Our licensed technicians handle piping, venting, electrical, or gas connections with precision, ensuring safe, code-compliant setup.
  4. System Testing: After installation, we thoroughly test flow rates, temperature consistency, and system operation to confirm optimal performance.
  5. Client Guidance: We educate you on proper use, routine maintenance, and descaling procedures to maximize efficiency and longevity.

Every installation is backed by our 100% Satisfaction Guarantee, giving you confidence in both our workmanship and the reliability of your tankless water heater.

Maintenance & Preventive Care for Tankless Water Heaters

Routine maintenance is critical to prevent scaling, corrosion, and operational inefficiencies. 

You can rely on our team for: 

  • Annual Descaling and Flushing: Removes mineral buildup to maintain heat exchanger efficiency.
  • Gas or Electrical Component Inspections: Ensures proper ignition, fuel flow, and safe operation.
  • Pipe and Valve Checks: Verifies secure, leak-free connections.
  • Temperature Calibration: Confirms consistent hot water delivery throughout the property.

By keeping your system well-maintained, you can avoid costly repairs, ensure uninterrupted hot water, and extend the lifespan of your tankless water heater.

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  • Lasting Customer Relationships
  • Locally, Independently & Family Owned
  • Service & Gratitude

SEASONS CHANGE, COMFORT REMAINS

Year-Round service Through All of Life's Phases
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  • Lasting Customer Relationships
  • Locally, Independently & Family Owned
  • Service & Gratitude