Frequently Asked Questions

Evo Water Heating & Plumbing - San Jose, Los Altos & Sunnyvale, CA

  • When should I call a professional plumber?

    Call a professional if you notice:


    • Leaking or burst pipes
    • Slow or clogged drains
    • Running toilet
    • Water heater issues
    • Low water pressure
    • Sewage smells

    These problems often get worse if ignored, leading to bigger repairs later.

  • Do you offer emergency plumbing services?

    Yes - we provide 24/7 emergency plumbing support for urgent issues like burst pipes or severe leaks so you can get help any time.

  • What types of water heaters do you install and service?

    We work with all major types of water heaters:


    • Traditional tank-style units
    • Tankless/on-demand systems
    • Heat pump/hybrid units
    • Solar & condensing water heaters

    We can repair, install, upgrade or maintain any model.

  • How do I know if my water heater needs repair or replacement?

    Common signs include:


    • No hot water or inconsistent temperatures
    • Water that is rusty or discolored
    • Leaks around the tank
    • Unusual noises (banging/popping)
    • Frequent system cycling

    A professional inspection can determine if repair or replacement is best.

  • What is the benefit of a tankless water heater?

    Tankless systems heat water on demand, offering:

    ✔ Endless hot water

    ✔ Better energy efficiency

    ✔ Longer lifespan

    ✔ Smaller footprint in your home

    They're ideal for busy households or anyone looking to lower utility costs.

  • How do I know if I have hard water?

    Signs of hard water include:


    • Mineral buildup on fixtures
    • Dry skin & hair
    • Spots on dishes
    • Shorter appliance lifespan

    A water test determines the best solution.

  • Why won't my drain clear on its own?

    Slow or clogged drains can be caused by soap buildup, grease, hair, food particles or foreign objects. Over-the-counter products often don't solve the underlying issue and can damage pipes. Professional drain cleaning gets deeper and protects your plumbing.

  • When should I call for drain cleaning?

    Call us if you notice:


    • Water backing up
    • Sluggish draining
    • Unpleasant odors
    • Recurring clogs

    Regular cleaning helps prevent bigger issues like pipe damage.

  • Do you offer estimates and consultations?

    Yes! We provide personalized estimates and expert advice for water heaters, plumbing repairs, water treatment systems, and more - just contact our team to get started.