Water Heater Replacement Cost in New Braunfels: What to Expect

In New Braunfels the gap between a low quote and a high one comes down to local specifics. The City requires a plumbing permit (opens in a new tab) for a replacement, and the 2021 plumbing code it adopted in 2023 calls for an expansion tank and a drain pan in the right conditions.

Fuel matters too. CenterPoint gas reaches many parts of the city but not all, so a house off FM 1101 near Freiheit and one out FM 306 toward Canyon Lake can need very different work. And on New Braunfels Utilities (NBU) water, which its 2019 report (2018 data) put at an average 15.1 grains per gallon, the tank you choose matters as much as the price.

How much does a water heater replacement cost?

Most homeowners pay about $1,000 to $3,400 for a standard tank water heater, installed. Tank size, fuel and how hard the heater is to reach push a job toward one end or the other.

These are typical national ranges, not a New Braunfels quote; repairs, tankless and the other jobs are on the full list of water heater prices. You'll get the real number for your house before any work starts, or you can get your price now.

What size water heater do I need?

Match the water heater to the number of people in the house. Rheem's sizing guide (opens in a new tab) gives these starting points by household size.

• 1–2 people: 30 to 40 gallons.
• 2–4 people: 40 to 50 gallons.
• 4–5 people: 50 to 55 gallons.
• 5 or more: 75 gallons, or a tankless water heater.

Every tank label lists a First Hour Rating, the gallons it can deliver in that busiest hour; compare it with your mornings. Sizing up can also mean a bigger gas line or a heavier circuit, which is part of the price.

Is tankless a cheaper way to replace a tank?

Tankless is not a cheaper way to replace a tank up front. A tankless water heater installed typically runs about $1,600 to $4,500, and switching from a tank adds venting, gas-line or electrical work worth a few hundred dollars more.

The case for tankless rests on a longer life, 15 to 20 years by A.O. Smith's and Rheem's figures against typically 8 to 15 years for a tank, and on hot water that does not run out. The tankless installation cost guide covers that math.

Ranges are compiled from several national cost guides and rounded; see how these ranges are calculated.

What makes a replacement cost more in New Braunfels?

Five local items move a quote away from the typical range. None is optional when the code calls for it.

1. Permit: the City requires one to install, alter, repair or replace any plumbing system. It is normally pulled by the licensed plumber doing the job through the City's online portal, and the fee is not published.
2. Expansion tank: the code requires one when the cold supply passes through a check valve, pressure-reducing valve or backflow preventer (International Plumbing Code (IPC) 607.3 (opens in a new tab)). Heated water has to expand somewhere.
3. Drain pan and attic access: IPC 504.7 requires a pan with its own drain line wherever a leak would damage the house. The pan is cheap; carrying a tank up a pull-down ladder is the labor.
4. Gas or electric: like for like is cheapest. Changing fuel adds a gas line and vent, or a heavy new circuit, on top of the heater.
5. Hard water: NBU's 2019 report measured 8.1 to 19.5 grains per gallon. That argues for a tank with a better anode and a yearly flush over the cheapest heater on the shelf.

Does gas or electric change the replacement cost?

Gas or electric changes the replacement cost mostly when you switch fuels. Replacing gas with gas or electric with electric reuses the existing gas line, vent or circuit, and that keeps the job simple.

• Gas to gas: new flex connector, vent check and a leak test. At about 620 feet, New Braunfels sits well under the 2,000-foot limit gas heaters are built for, so no altitude adjustment is needed.
• Electric to electric: the same circuit usually works for the same size tank.
• Electric to gas: only possible where CenterPoint serves your street; Veramendi is the one neighborhood with a confirmed supply, so check your own address.
• Gas to electric: a new heavy-duty circuit, and room in the electrical panel to carry it.

Your electric provider depends on where you live: NBU for most of the city, Guadalupe Valley Electric Cooperative (GVEC) south of County Line Road, and Pedernales Electric west out FM 306.

What should a fair quote include?

A fair water heater replacement quote includes the heater by brand, size and fuel; labor; the City permit; haul-away of the old tank; new fittings; and each code item, with required and recommended marked separately.

• Make, model, capacity and warranty length
• Labor, as a flat price or hours at a stated rate
• City of New Braunfels plumbing permit
• Removal and disposal of the old tank
• New connectors, relief valve and discharge line to code
• Expansion tank, pan and drain, venting or wiring, as the house needs
• The plumber's Texas license number

Texas Board Rule §367.10 (opens in a new tab) requires plumbing companies to print the responsible master plumber's license number on written estimates. Master plumber numbers start with "M", and the state board runs a public search.

Why do two quotes differ by hundreds of dollars?

Two water heater replacement quotes differ by hundreds of dollars because one includes the code items and the other leaves them out, because the heaters differ in warranty, or because one priced a harder install. The low quote is often the incomplete one.

• Code items skipped: a quote with no expansion tank, pan or new relief valve can look cheaper and still fail City inspection.
• Warranty tiers: a longer-warranty tank usually carries a heavier anode, which earns its keep on hard water.
• Access: one quote saw your attic ladder; the other was priced from a phone call.
• Permit and haul-away: "permit extra" and an old tank left in the driveway are not the same as a quote that includes both.

How long does a water heater replacement take?

A like-for-like tank swap typically takes 1 to 3 hours. Converting a tank to tankless takes about 4 to 6 hours, so plan on most of a day without hot water.

Add time if the heater is in an attic, if the vent or gas line needs changes, or if an expansion tank and pan go in at the same visit. The City inspection comes after the work. Plan water heater replacement before the old tank fails, and the timing stays in your hands.

Last updated: October 1, 2026