
Tank Water Heater Installations in San Marcos, TX
Reliable Tank Water Heater Installations for Over 25 Years
- Reliable people—Our water heater replacement specialists are licensed, insured, and trained to install most tank water heater models.
- Reliable financing— High credit score? Low credit score? We can help people with either!
- Reliable relationships—Many of our employees stay for 10+ years. So you'll always hear a familiar voice on the phone or see a familiar face at your door.
Cost of a tank water heater installation in San Marcos, TX
The following factors determine the cost of installing a tank water heater:
- Type and model of water heater: The most important factor when determining the price of a water heater installation is the water heater model itself. Tank water heater models vary across the board in price due to their heating efficiency, heating components (including electric, propane, and natural gas), and other factors.
- Size of water heater: Tank water heaters come in a variety of gallon sizes. Sizing a water heater is important because it ensures enough capacity during peak use times (when the whole family is getting ready for the day, for example). Larger gallon sizes have higher costs associated with them.
- Modifications to plumbing & permits: Sometimes when we're replacing a water heater, we come across other challenges that need to be resolved first. For example, we may modify an exhaust pipe, replace a valve, or install a new water collection pan or water alarm. Regardless of what you need, we can help you get it done.
Signs you need a new water heater
- Water leakage around tank: Water leakage isn't always a guaranteed sign you'll need a replacement. But it's a major red flag if it comes from a crack in the tank. If you do see a crack, contact Reliable Air right away.
- Uneven temperatures or no hot water: Is your water heater notoriously unreliable? Maybe it's only working for a few minutes at a time, or worse, not at all! There's no guarantee you'll need a replacement here, but when combined with other signs, you'll definitely want to consider a new system.
- Constant repairs: If you've called plumbers to your home multiple times to fix your tank water heater, chances are deeper issues aren't being addressed. Constant repairs indicate that the system is on its last leg and needs replacement. This is especially true if the system is 15+ years old.
- Increased usage limiting hot water: If you've had a few additions to your family but haven't replaced your water heater for a while, it may be time for an upgrade. We can help size your new water heater so you won't have to worry about hot water running out!
Want an accurate install price?
Contact us for an in-home estimate (it's free).
- Canyon Lake
- Buda
- Cibolo
- Fischer
- Garden Ridge
- Luling
- Lockhart
- Kyle
- Manchaca
- New Braunfels
- Schertz
- Seguin
- Universal City
- Wimberley
- Dripping Springs
How we work in 5 easy steps
We lock in your appointment time
Schedule an in-home estimate online or call us at 512–396–8183. We schedule service in 2-hour windows, so you'll know when we'll arrive.
We will notify you before we arrive
Thirty minutes before your plumber arrives, you'll receive a call confirming their arrival. No need to wait around the house all day!
We give you an upfront price
You'll never be in the dark about pricing when installing your water heater with Reliable Air. We'll introduce you to various tank water heater options and provide pricing for each. You'll know exactly what system you're getting and the price you're getting it for.
We install your new system
Our plumbers are highly trained and tend to finish most water heater installations in just a few hours. We also test your new system and clean everything up before we leave.
We make sure you're satisfied
We don't dine and dash. After the installation, we call to get you're feedback so we can ensure you're 100% satisfied.

See water heater installation reviews from homeowners in San Marcos, TX and the surrounding areas
"Very professional...I highly recommend them!"
"The guys were very professional. I was expecting them to come between 2-4pm, and they actually came sooner. The guys did a great job with hardly any mess whatsoever! I highly recommend them!"
-J.D.
"Personable and completed the job without delay."
"Technician JW called ahead of arrival and was on time. JW quickly IDed the problem and explained what was happening and what needed to be done. He was personable and completed the job without delay."
-T.H.
Our 100% satisfaction guarantee
We do whatever it takes to make you happy (like, a 3-day weekend happy). So, if you have any issues with your new water heater, we'll make it right—even if that means giving you your money back.