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New tankless and tank water heaters installed with copper piping in a Nashville, TN home utility closet
Nashville TN · Same-day · 24/7

Water Heater Replacement in Nashville, TN

Same-day tank, tankless and hybrid heat pump water heater replacement for Nashville homes and businesses. Flat up-front pricing, code-compliant installation, old unit hauled away — and 24/7 emergency response when a tank starts leaking.

  • Same-day install
  • Licensed & insured
  • Flat-rate pricing
  • Nashville & Middle TN

Nashville water heater installation options

Residential and commercial water heater replacement from one licensed Tennessee mechanical contractor — sized, installed and verified by the same techs who service HVAC and refrigeration.

Tank water heater replacement

The fastest, most affordable path back to hot water.

  • 30, 40, 50, 75 & 80 gallon sizing
  • Gas, propane and electric models
  • Same-day swaps in most of Nashville

Tankless conversions

Endless hot water and a reclaimed closet.

  • Gas line & venting sized correctly
  • Recirculation options for long runs
  • Annual descaling plans available

Hybrid heat pump water heaters

Lowest operating cost for all-electric homes.

  • Big utility savings vs. electric tanks
  • HVAC-grade refrigerant expertise
  • Rebate-eligible efficiency models

Commercial water heaters

Kitchens, franchises and multi-site facilities.

  • High-recovery units for dish machines
  • After-hours installs, zero downtime
  • Multi-site rollouts across Tennessee

Emergency leak response

24/7 when the tank lets go at 2 a.m.

  • Immediate shutdown & isolation
  • Temporary hot water options
  • Replacement started same visit

Code-compliant installation

Done right so it passes and lasts.

  • Expansion tank, pan & drain
  • Correct venting and T&P piping
  • Old unit hauled away and recycled

Signs your Nashville water heater needs replacing

Water pooling around the base of the tank
Rusty, brown or metallic-smelling hot water
Rumbling or popping from sediment buildup
Hot water runs out much faster than it used to
Pilot light or burner that won't stay lit
Heater is more than 10 years old

How a water heater replacement works

01

Call 615-509-9375

Tell us the fuel type and tank size — or send a photo and we'll identify it.

02

Flat installed quote

One price covering unit, labor, code parts, haul-away and warranty.

03

Same-day install

Licensed techs drain, remove, set, pipe, vent and test the new heater.

04

Verified & registered

Temperature check, leak check, and manufacturer warranty registered for you.

Credentials

Licensed, Bonded, Insured & Certified

Every SWIFT Hvacr technician works to code, carries the proper credentials, and documents the work — so your compliance file is always clean.

Licensed

State-licensed commercial mechanical contractor

Bonded

Fully bonded for commercial and multi-site work

Insured

General liability & workers' comp coverage

ATN Member

Aftermarket technician network standards

EPA 608 Certified

Certified refrigerant handling & compliance

Nashville water heater replacement FAQ

Straight answers on cost, timing, tankless vs. tank and what Middle Tennessee code requires.

How much does water heater replacement cost in Nashville, TN?
Most Nashville water heater replacements land between a standard 40–50 gallon gas or electric tank swap and a full tankless conversion, and the price depends on tank size, fuel type, venting and whether code upgrades (expansion tank, pan, drain, shutoff) are needed. SWIFT Hvacr quotes a flat installed price up front — including the new unit, permit-ready installation, haul-away of the old heater and warranty registration — before any work starts.
How fast can you replace a water heater in Nashville?
Most Nashville, TN water heater replacements are completed same-day or next-day. If your heater is leaking, call 615-509-9375 — we run 24/7 emergency dispatch across Davidson County, so a licensed technician can shut the unit down and get a replacement installed before water damage spreads.
How long does a water heater last in Middle Tennessee?
A conventional tank water heater in the Nashville area typically lasts 8–12 years, and a tankless unit 15–20 years with annual descaling. Middle Tennessee's hard water shortens tank life, so if your heater is past 10 years old, replacing it before it fails is almost always cheaper than emergency water cleanup.
What are the signs I need a new water heater?
Rusty or brown hot water, rumbling or popping from the tank, water pooling around the base, hot water that runs out faster than it used to, a pilot that will not stay lit, or a heater older than 10 years. Any active leak from the tank body itself means replacement — tanks cannot be patched.
Should I switch to a tankless water heater?
Tankless makes sense for Nashville homes that run out of hot water, want to reclaim closet or garage space, or plan to stay in the home long enough to recover the higher install cost through lower energy bills. We size the unit to your actual fixture load and gas or electrical capacity instead of guessing, and tell you honestly when a high-efficiency tank is the better value.
Do you install gas, electric, and hybrid heat pump water heaters?
Yes. We replace natural gas and propane tank heaters, electric tank heaters, gas and electric tankless units, and hybrid heat pump water heaters. Because we are an HVAC and refrigeration contractor, heat pump water heaters are squarely in our wheelhouse.
Do you handle commercial water heaters for restaurants and multi-site operators?
Yes. SWIFT Hvacr replaces and services commercial water heaters for restaurants, franchises, grocery and convenience stores and facility groups across Nashville and all of Tennessee — including high-recovery units feeding dish machines and three-compartment sinks, coordinated so the location stays open.
Do you remove and haul away the old water heater?
Always. Disconnect, drain, safe removal, recycling of the old unit and a clean work area are included in every SWIFT Hvacr water heater replacement in Nashville — no disposal surprise on the invoice.
Is a permit required to replace a water heater in Nashville?
Metro Nashville requires the replacement to meet current code — proper venting, temperature and pressure relief piping, expansion tank, seismic and drain pan requirements where applicable. We install to code every time and document the work so your homeowner's insurance and any future home inspection hold up.
Which areas around Nashville do you serve for water heater replacement?
Nashville proper plus Antioch, La Vergne, Smyrna, Nolensville, Hermitage, Brentwood, Mt. Juliet, Murfreesboro, Donelson and Franklin — and commercial water heater work statewide across Tennessee.

No hot water in Nashville? We can replace it today.

Call 24/7 for emergency water heater replacement, or email for a free flat-rate quote.