Replacing a 50-gallon gas water heater typically costs between $1,500 and $3,500 for the unit and professional installation. The price breakdown generally includes:
Based on the manufacturer's suggested service life, the average life expectancy of a water heater is about 8 to 12 years.
The Home Depot offers traditional water heater tanks and modern tankless units, both powered by either gas or electricity. Depending on your selection, the average cost for standard tank installation is generally between $1,600 to $2,400. Tankless installation can range from $2,400 to $5,400.
Labor and Material Costs
The cost to install a gas water heater will vary depending on the type of water heater and labor rates in your area. On average, homeowners can expect to pay $500 to $2,500 for labor and $500 to $3,500 for materials. Gas tank water heaters typically cost less to install than tankless models.
Professional installation costs to replace a water heater
The more hours of electrical, carpentry and plumbing work that are required for your installation (for example, installing new electric, water or gas lines or drywall), the higher your total water heater replacement cost.
Lowe's gas water heater installation costs typically range from $1,000 to $2,500 total, depending on the unit size and your location. The labor and permit fees alone generally cost between $600 and $1,200, while the gas water heater unit itself adds $400 to $1,300+ to the overall price.
Some of the most reliable tank water heater brands in 2026 include Rheem, A.O. Smith, and Bradford White. These manufacturers have long histories of producing durable, efficient heaters with strong warranty coverage. Rheem is known for overall dependability and wide availability, A.O.
Traditional tank water heaters last 8 to 12 years, while tankless models typically last 15 to 20 years. Lifespans vary greatly depending on water quality, unit design, and whether you perform regular maintenance like flushing the tank and checking the anode rod.
5 Signs That You Need a New Water Heater
A standard tank water heater installation takes 2-4 hours for most plumbers. This includes removing the old unit, installing the new water heater, and connecting all pipes and electrical components.
The longest-lasting water heater brands are Bradford White and Rheem (specifically the Marathon series). Bradford White is favored by plumbers for professional installations and longevity, while the Rheem Marathon uses a unique fiberglass tank backed by a true lifetime warranty.
A 10-minute shower typically uses 50 gallons of water if you are using an older, inefficient showerhead (rated around 5 Gallons Per Minute - GPM). With a standard modern showerhead (2.5 GPM), it would take a 20-minute shower to reach 50 gallons.
This tax credit is effective for products purchased and installed between January 1, 2023, and December 31, 2025. Claim the credits using the IRS Form 5695.
Key signs your water heater is failing include active leaks, rust-colored water, loud popping noises, and a lack of hot water. If your unit is over 10 years old or requires frequent repairs, it is likely nearing the end of its lifespan.
Professional installation costs for an electric water heater average $600 to $900. Gas water heaters in the 50-gallon size often cost between $500 and $1,200. You'll typically need to have a gas water heater installed by a professional.
A: Traditional tank water heaters usually last 8–12 years, while tankless units often last 15–20+ years. Q: Should I replace my water heater if it's over 10 years old? A: Often yes. Even if it still works, the risk of leaks and sudden failure increases significantly after 10 years.
If your water heater isn't working, first ensure the power or gas is safely supplied and check for visible leaks. Then, check either the electrical panel or the pilot light depending on the type of unit you have.
Excessive Water Pressure: High pressure stresses your system and shortens its lifespan. A pressure-reducing valve can help. Undersized System: A unit that's too small for your household's demand works harder and wears out faster. Proper sizing during installation is critical.
When searching for the most reliable water heater, professional plumbers consistently recommend A.O. Smith, Bradford White, and Rheem. For long-term tank durability and a "set-it-and-forget-it" experience, A.O. Smith and Bradford White are top choices. If you prioritize high-tech smart features and energy efficiency, Rheem is a market leader.
Most manufacturers and plumbing experts recommend flushing your water heater once a year to prevent sediment and mineral buildup, which helps maintain energy efficiency and extends the lifespan of the tank.
If the cost of repairs exceeds 50% of the cost of buying a new water heater, replacement is likely the smarter decision, especially if your water heater is older. Older or less efficient models may result in higher utility bills. Upgrading to a newer, more energy-efficient unit can save you money over time.
There isn't a single "number 1" model, as the ideal water heater depends on your home's setup, but top-rated brands dominating the market include Rheem (best overall tank/tankless) and A.O. Smith (best for durability and commercial-grade units).
Bradford White water heaters are widely regarded as some of the most durable on the market. They come with an array of well-thought-out features that enable them to stand up to all kinds of wear and tear that results from regular use. Overall, they have a longer service life than Rheem water heaters.
As a group, heat pump water heaters are two to three times more energy-efficient than conventional electric water heaters, according to the Department of Energy. They do not generate heat directly, unlike conventional water heaters.