- HEP Plumbing
- Certified Plumbers

Certified Plumbers
Certified Plumbers | Tank Water Heater | Plumbing | Knoxville
When your tank water heater sputters, leaks, or just can’t keep up with Knoxville’s busy mornings, HEP’s certified plumbers are ready to restore dependable hot water in a flash. Our local team combines decades of hands-on experience with up-to-the-minute training, so whether you need a precision repair or a seamless replacement, you’ll get workmanship that meets code, maximizes efficiency, and stands up to everyday demands. We arrive on time, protect your home with clean work practices, and back every job with honest pricing and a satisfaction guarantee.
Schedule your tank water heater tune-up or installation today and discover why neighbors across Knox County trust HEP for comfort that never runs cold. From same-day emergency service to energy-saving recommendations, we make the entire process straightforward—no surprises, just hot water you can count on. Call, click, or chat with us now, and let HEP keep the heat flowing.
FAQs
How do I know whether to repair or replace my tank water heater?
Most tank water heaters last 8–12 years in Knoxville’s climate. If your unit is approaching that age, leaking from the tank itself, producing rusty-colored water, or running up your utility bills, replacement is usually more cost-effective than repair. A certified plumber can inspect the anode rod, thermostat, and valves to see if a simple fix will restore performance; otherwise we’ll recommend a properly sized, energy-efficient replacement and dispose of the old unit in an environmentally responsible way.
What size tank water heater is right for my home?
Tank capacity is based on peak hour demand. As a rule of thumb: 30–40 gallons serves 1–2 people, 40–50 gallons covers 2–3, 50–60 gallons works for 3–4, and 75+ gallons is best for 5 or more people or large soaking tubs. Our plumbers also factor in simultaneous appliance use, incoming groundwater temperature, and fuel type to perform an accurate First Hour Rating (FHR) calculation so you never run out of hot water.
How often should my tank water heater be flushed and serviced?
Manufacturers recommend a complete flush at least once a year to remove sediment that settles in the tank and insulates the burner or elements. Knoxville’s moderately hard water can make semi-annual flushing a smart idea. During service we also inspect the anode rod, test the temperature-pressure relief valve, check gas or electrical connections, and calibrate the thermostat—maintenance steps that can add 3–5 years to your heater’s life.
Are there energy-efficient options for traditional tank units?
Absolutely. Today’s gas and electric storage heaters are up to 30 % more efficient than units made a decade ago thanks to thicker foam insulation, better dip-tube designs, and high-efficiency burners or low-wattage elements. Hybrid electric heat-pump tanks and condensing gas models deliver even bigger savings and often qualify for ENERGY STAR® rebates from Knoxville Utilities Board and federal tax credits. Our team can compare payback times and handle all rebate paperwork.
How long does a typical tank water heater installation take?
For a like-for-like replacement, expect 2–4 hours on site. We start by draining and removing the old tank, then set the new heater, connect water lines, gas or electrical service, expansion tank, and venting, and finish with a full pressure and leak test. Because we keep common sizes in stock, same-day service is available, and our 24/7 emergency crew can restore hot water overnight if needed.
Do you take care of permits and code compliance in Knoxville?
Yes. Our plumbers are state-licensed, bonded, and insured. We pull the required plumbing and, when applicable, mechanical or electrical permits with the City of Knoxville or Knox County and schedule final inspections. Installations follow the 2021 International Plumbing Code, National Electrical Code, and local amendments—giving you paperwork that satisfies home insurance requirements and protects your manufacturer’s warranty.