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Demand and fuel assessment.
Bathrooms, appliances that run together, your gas line and your venting: the numbers that decide the right system.
Water heater installation in Houston
Tank or tankless?
Your house decides.
Tank from $2,500. Tankless from $4,200. Both installed every day.
Ask three Houston plumbers what to install and you’ll get three confident answers, each matching what that company likes to sell. We install both, so we can answer a better question: what does your house need? You see the math before you commit to anything.
A.O. Smith ProLine XE series
Tank and tankless, both daily.
We install both every single day, which frees us to ask what your house needs instead of what we’d like to sell.
Right-sized, never upsold.
An undersized tank means cold showers every morning. An oversized tankless means you paid for capacity you’ll never use.
Permits and inspection included.
We pull the City of Houston permit and build every installation to pass, then hand you the paperwork and the registered warranty.
The costliest mistake is the wrong size.
We start every installation with the demand math: how many bathrooms you have, which appliances run together and what your gas line and venting can support. Then you get two real quotes, tank and tankless, with the honest trade-offs of each. The decision stays yours.
A tank: often the smartest money.
A quality tank installation runs $2,500 to $3,500 for most homes. It heats 40 to 80 gallons, recovers fast on gas, and its technology has been boringly reliable for decades. For a three-bedroom, two-bathroom home, it’s often the smartest money in the conversation.
Tankless: endless hot water.
A tankless installation runs $4,200 to $8,000, depending on capacity and what your gas line needs. You get endless hot water and a 20-year service life with annual maintenance.
The payback depends on your plans.
On energy savings alone, tankless typically takes 12 to 20+ years to pay back the price difference. Over three years before you sell the house, the math usually doesn’t work, so it suits homeowners who plan to stay for the long run.
Water heater installation, without the guesswork.
Why every quote sounds different.
Here’s something worth knowing before anyone quotes you a price: the company that only installs tankless will recommend tankless, and the company that stocks nothing but 50-gallon tanks will tell you tanks are all you need. They’re answering a different question from the one you asked, and neither one is lying, exactly.
We have installed both systems across Greater Houston for more than twenty years and earned 1,400+ reviews, most of them from homes where we did the unglamorous thing and sized the system correctly. The right water heater comes down to your house, your gas line and your family’s 7 a.m. rush hour.
Gas or electric.
About 75 percent of what we install in Houston is gas: it heats roughly twice as fast and costs less to run. If your home has no gas line at the heater location, a high-efficiency electric unit beats paying $400 to $800 to run one. We’ll tell you which side of that line your house sits on within the first ten minutes of the assessment.
What professional installation involves.
A water heater is plumbing, gas, venting and code compliance meeting in one closet, and the installation details decide the next decade of reliability. Venting is the part homeowners underestimate most. Gas units must move exhaust safely outside, and the rules differ completely between standard tanks, power-vent tanks and condensing tankless units. It’s enough of a subject that we wrote the guide Houston searches for: how tankless water heater venting actually works.
Then there’s the City of Houston permit, the expansion tank required on closed plumbing systems, the pan and drain line that protect your slab and drywall, and the combustion air a gas unit needs to burn clean. Every one of those is included in our number. When a quote comes in suspiciously low, one of those line items is usually missing.
What the inspection checks.
Houston requires a permit for water heater installation, and the inspection checks details bargain installers routinely skip: the expansion tank, the drain pan and drain line, venting, the gas sediment trap and seismic strapping where applicable. Every installation we do is built to pass that inspection, because we pull the permit and stand behind the work.
Still deciding?
We put the full tank-versus-tankless argument, with the break-even math and the ways each one fails, in one guide: tankless vs. tank water heaters in Houston. Read it, then call us with harder questions. We like those.
INSTALLATION PRICING
Tank from $2,500. Tankless from $4,200.
The permit, expansion tank, pan and code upgrades are included in our number.
Two real quotes,
side by side.
A tank installation runs $2,500 to $3,500 for most homes. A tankless installation runs $4,200 to $8,000, including the unit, depending on the type of heater, its capacity, how complex the installation is and any upgrades your plumbing, venting, gas line or electrical system needs.
Call 832-673-0909 for a free estimate over the phone. After the assessment, you get both prices and the trade-offs of each, and the decision stays yours.
Sized first.
Installed once.
Four steps, from the demand math to a walkthrough before we leave the driveway.
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A recommendation with both prices.
Tank and tankless, each with a real quote and the honest trade-offs. You choose.
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Licensed installation, permit included.
We pull the City of Houston permit and build the installation to pass inspection, right the first time.
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System test and walkthrough.
We test the system, register your warranty and walk you through it before we leave the driveway.
The systems
we install.
Tank installations from 30 to 80 gallons, gas and electric. Tankless installations up to 199,000 BTU, including gas line sizing and venting. Heat pump water heaters, too.
We install Rheem, A.O. Smith, Bradford White, Rinnai and Navien systems, backed by leading manufacturer warranties and our own labor warranty, and we register every warranty before we leave.
Serving Greater Houston.
Confirm the service address and project with the team. Some areas are subject to an additional travel fee.
Questions before you choose a system.
How much does it cost to install a tankless water heater?
Tankless installation in Houston ranges from $4,200 to $8,000, including the unit. Factors include the type of heater, how complex the installation is and any upgrades your plumbing, venting or electrical system needs. Our tankless installations start at $4,200, with a free estimate over the phone.
Should I choose a gas or electric tank water heater in Houston?
Natural gas is more popular in Houston because gas is relatively inexpensive and heats water faster than electric. Electric tanks are a great option if your home has no gas line or you want a lower upfront installation cost. Gas tanks usually cost slightly more to install because of the venting, but they cost less to run each month. We’ll look at your home’s existing setup and help you choose the most cost-effective option.
How long does a tank water heater installation take?
A standard tank-to-tank replacement typically takes 2 to 4 hours. That covers draining and removing the old unit, setting the new tank, connecting the water and the gas or electric lines, and a full safety inspection. If code upgrades are needed, such as adding a drip pan or an expansion tank or updating the venting, the job may take another 1 to 2 hours.
Does Houston require a permit for a water heater installation?
Yes. Houston requires a permit for water heater installation, and the inspection checks the details bargain installers routinely skip: the expansion tank, the drain pan and drain line, venting, the gas sediment trap and seismic strapping where applicable. We pull the permit and build every installation to pass.
What does a tankless water heater need to be installed?
Proper venting, a dedicated gas line or enough electrical capacity, and a location protected from freezing. Professional installation is recommended for safety and performance.
How does a tankless water heater work?
It heats water on demand instead of storing it in a tank. When you open a hot water tap, cold water flows into the unit, and a gas burner or electric element heats it on the way to the faucet. You get a continuous supply of hot water without a storage tank.
Get both quotes.
Then decide.
Tell us how many bathrooms you have and which appliances run at the same time. You’ll get a tank quote and a tankless quote, with the trade-offs of each.