Water Heaters · Knoxville, TN
Water Heaters in Knoxville, TN
Tank and tankless replacement, recirculation and descaling. Census data for the Knoxville ZIP codes we cover show 33% of homes heating with utility gas and 64% with electricity, so electric tank water heaters are the most common replacement here. Most tanks last about 8 to 12 years.
- Same-day service when a plumber is available
- 31 ZIP codes covered
- Quote before work
Water heaters in Knoxville homes
Utility gas heats 33%, above the Tennessee figure of 31% of homes. That ranks 13th highest of the 27 Tennessee cities we profile. Water heaters usually use the same fuel as the furnace, which decides venting and gas line work on a replacement.
With 45% of homes built before 1980, many water heaters sit in tight basements or closets that were sized for smaller tanks, so measure before ordering a replacement.
In Tennessee: Limestone areas have hard water, and older homes in the cities have cast iron and clay sewers.
Permits
Most cities require a permit for a water heater replacement, and the plumber normally pulls it.
Water Heaters services in Knoxville
Water Heater Replacement, Water Heater Flush & Descaling, Tankless Water Heaters, Hot Water Recirculation.
Knoxville figures behind this page
- Heat with utility gas
- 33%
- Heat with electricity
- 64%
- Built 2000 or later
- 27%
What to do first
- Shut the cold inlet valve and the gas or breaker if it's leaking
- Flush a few gallons from the drain valve to check for sediment
What affects the price
- Gas vs. electric
- Capacity (40, 50 or 75 gallons)
- Location: garage, closet or attic
- Code upgrades needed (expansion tank, pan, venting)
The plumber quotes on site, before any work starts.
How the job works
Every water heaters service is explained on our Water Heaters page. For the rest of Knoxville's plumbing picture, see plumbers in Knoxville and frozen & burst pipe repair in Knoxville.
Water Heaters in Knoxville: FAQ
Should I replace my Knoxville water heater with the same fuel?
Usually, because switching fuels means new gas, venting or electrical work. In Knoxville, where 64% of homes use electric heat, a like-for-like electric tank is the simplest swap.
Nearby
ZIP codes covered in Knoxville: 37901, 37902, 37909, 37912, 37914, 37915, 37916, 37917, 37918, 37919, 37920, 37921, 37922, 37923, 37924, 37927, 37928, 37929, 37930, 37931, 37932, 37933, 37934, 37938, 37939, 37940, 37950, 37995, 37996, 37997, 37998
Figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Knoxville; state comparisons use the Tennessee statewide estimate.
Need water heaters in Knoxville?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.