Reliable Water Heater Services in Knoxville & Surrounding Counties

Few things are worse than stepping into a cold shower or running out of hot water when you need it most. A failing water heater can disrupt your daily routine and even increase your energy bills. That’s where Jack’s Plumbing comes in. With over 35 years of experience, our family-owned and operated plumbing company in Knoxville, TN, specializes in water heater installation, repair, and maintenance. Whether you have a traditional tank, tankless system, or hybrid model, our licensed plumbers deliver reliable solutions that restore comfort quickly. Call us today at (865) 361-4024 for a free estimate.

Complete Water Heater Services

At Jack’s Plumbing, we handle all makes and models of water heaters. Our services include:

White water heater installed in a recessed wall space, with pipes and a temperature gauge visible.
Person using a screwdriver to work on a water heater; a toolbox is in the foreground.
White boiler unit with copper pipes in a basement.
Water heater and furnace system in a home, pipes connected, with a staircase in the background.
Person testing a water heater with a digital meter.
Person repairs a wall-mounted gas boiler; copper pipes and wires are visible inside the open unit.

No matter your system, we have the knowledge and tools to keep it working efficiently.

Water Heater Installation & Replacement

If your water heater is outdated, inefficient, or beyond repair, we can help you choose the right replacement for your home or business. Our team installs standard tank water heaters, tankless units, and hybrid systems, ensuring you get the size, style, and energy efficiency that best fits your needs. We’ll remove the old unit, install the new one, and make sure everything works perfectly before we leave.

Expert Water Heater Repair

Strange noises, rusty water, or inconsistent heating are all signs your water heater may need repairs. Our licensed plumbers quickly diagnose the issue and provide cost-effective solutions to get your system running again. From replacing heating elements and thermostats to fixing leaks, we’ll restore your hot water in no time.

Tankless Water Heater Specialists

Tankless water heaters are growing in popularity thanks to their endless hot water supply and energy efficiency. At Jack’s Plumbing, we’re experts in tankless water heater installation, repair, and maintenance. If you’re ready to upgrade or need service for your existing unit, we’ll make sure your tankless system delivers peak performance.

Water Heater Maintenance for Longer Life

Routine maintenance helps extend the life of your water heater and prevents costly breakdowns. Our maintenance services include:

Tank Flushing to Remove Sediment Buildup

Anode Rod Inspection & Replacement

Thermostat and Heating Element Testing

Pressure Relief Valve Inspection

With regular care from Jack’s Plumbing, your water heater will run more efficiently and last longer.

Tank vs. Tankless vs. Hybrid Water Heaters

When it’s time to replace your water heater, it helps to understand the differences between the main types. Standard tank water heaters are the most common option, storing hot water in a tank for quick access. They’re affordable and reliable but can run out of hot water during heavy use. Tankless water heaters heat water on demand, which means you’ll never run out, and they’re far more energy-efficient, though the initial installation cost is higher. Hybrid water heaters combine both technologies, using a storage tank but operating with advanced efficiency features to reduce energy bills. Each system has its advantages—tank models are budget-friendly, tankless units save space and deliver endless hot water, and hybrids strike a balance with long-term savings. At Jack’s Plumbing, we take the time to evaluate your hot water needs, budget, and household size to recommend the system that will serve you best.

Frequently Asked Questions About Water Heaters

  • How long do water heaters usually last?

    Traditional tank water heaters typically last 8–12 years, while tankless models can last 15–20 years with proper maintenance.

  • Should I repair or replace my water heater?

    If your unit is over 10 years old, requires frequent repairs, or no longer provides enough hot water, replacement is often the more cost-effective option.

  • What are the benefits of a tankless water heater?

    Tankless systems provide endless hot water, take up less space, and are more energy-efficient. They cost more upfront but save money on utility bills over time.

  • How do I know what size water heater I need?

    The right size depends on your household’s hot water demand. Our plumbers will assess your usage and recommend the correct tank capacity or tankless system for your needs.

  • Do you offer emergency water heater service?

    Yes! Jack’s Plumbing provides 24/7 emergency water heater repair in Knoxville, TN, and surrounding areas, so you’ll never be left without hot water for long.

Call Jack’s Plumbing for Water Heater Service Today

Don’t let water heater problems leave you in the cold. Call Jack’s Plumbing at (865) 361-4024 for expert water heater installation, repair, and maintenance in Knoxville, TN, and surrounding areas. We’ll keep the hot water flowing for your home or business.