Get matched with top water heater installers and replacers in your area
Enter your zip and get matched with up to 3 pros
Matching on HomeAdvisor
Water heater installers and replacers in San Marcos
Liquefied Propane Installations LLC, provides exceptional service to the surrounding areas. Always taking pride in all of our services. Whatever your home improvement needs may be, you can count on our company to leave you satisfied and happy. Our customer satisfaction is our top priority. We will earn your trust for a lifetime. We believe in making all clients repeat clients. Our staff listens to your needs regarding your plumbing needs. Call us today you'll be relieved you did. Thank you
"Excellent work"
Brian S on August 2023
Liquefied Propane Installations LLC, provides exceptional service to the surrounding areas. Always taking pride in all of our services. Whatever your home improvement needs may be, you can count on our company to leave you satisfied and happy. Our customer satisfaction is our top priority. We will earn your trust for a lifetime. We believe in making all clients repeat clients. Our staff listens to your needs regarding your plumbing needs. Call us today you'll be relieved you did. Thank you
"Excellent work"
Brian S on August 2023
Murphy's Plumbing offers top-tier plumbing solutions for both residential and commercial customers. We're committed to providing you with the highest quality service, available 24/7, so you can have peace of mind that assistance is just a phone call away. Plus! We offer free estimates to ensure transparency and trust in every project. Give us a call today!
"I recently hired Taylor from Murphy's pluming for a plumbing issue with my bathroom shower. He was quick to respond and arrived on time and most importantly got the problem I was having with my shower fixed quickly and it is working perfectly now!! I highly recommend Taylor for anyone looking for a reliable and skilled plumber!"
Stephanie B on June 2025
Murphy's Plumbing offers top-tier plumbing solutions for both residential and commercial customers. We're committed to providing you with the highest quality service, available 24/7, so you can have peace of mind that assistance is just a phone call away. Plus! We offer free estimates to ensure transparency and trust in every project. Give us a call today!
"I recently hired Taylor from Murphy's pluming for a plumbing issue with my bathroom shower. He was quick to respond and arrived on time and most importantly got the problem I was having with my shower fixed quickly and it is working perfectly now!! I highly recommend Taylor for anyone looking for a reliable and skilled plumber!"
Stephanie B on June 2025
Honest Plumbing & Air has been providing the best in HVAC and plumbing services to residents across Central Texas. Above all, we operate on the belief that honesty is the best policy. We will take the time to properly assess your specific situation and we will not overcharge you for unnecessary work. You can rest assured that when you call Honest Plumbing & Air, you're getting a professional technician who will be straightforward with you every step of the way. Our team will effectively diagnose your air conditioning, heating, or plumbing problem, without exaggerating the truth.
"Beware! not so honest. I had a air conditioner that would not start earlier this year and while he was here, I asked about having some general maintenance completed at the same time. I was told it could not be done at that time but the tech suggested that I purchase a maint. package that they would come out twice a year to do general maintenance on the units. He stated that they could do in a week or so, it turned out to be over 1-1/2 months for the 1st maintenance but I should clarify that it really isn't much maintenance but a opportunity to pay them to do a quote for additional work. In addition to this, one of our units was not operational arrived, before he would even move a finger I was required to sign a document for work in the amount of around $340 which ended up taking the technician 15 minutes to replace a blown fuse and loose wire, they charged $116.99 for the fuse (cost $0.1469). Not so honest, much different story from when I initially used them several years ago. "
tim h on June 2025
Honest Plumbing & Air has been providing the best in HVAC and plumbing services to residents across Central Texas. Above all, we operate on the belief that honesty is the best policy. We will take the time to properly assess your specific situation and we will not overcharge you for unnecessary work. You can rest assured that when you call Honest Plumbing & Air, you're getting a professional technician who will be straightforward with you every step of the way. Our team will effectively diagnose your air conditioning, heating, or plumbing problem, without exaggerating the truth.
"Beware! not so honest. I had a air conditioner that would not start earlier this year and while he was here, I asked about having some general maintenance completed at the same time. I was told it could not be done at that time but the tech suggested that I purchase a maint. package that they would come out twice a year to do general maintenance on the units. He stated that they could do in a week or so, it turned out to be over 1-1/2 months for the 1st maintenance but I should clarify that it really isn't much maintenance but a opportunity to pay them to do a quote for additional work. In addition to this, one of our units was not operational arrived, before he would even move a finger I was required to sign a document for work in the amount of around $340 which ended up taking the technician 15 minutes to replace a blown fuse and loose wire, they charged $116.99 for the fuse (cost $0.1469). Not so honest, much different story from when I initially used them several years ago. "
tim h on June 2025
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"Great folks. Tackled my new gas water heater. Garage closet install, a bit tight, but they made it work!"
Casey K on June 2025
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"Great folks. Tackled my new gas water heater. Garage closet install, a bit tight, but they made it work!"
Casey K on June 2025
Locally owned and operated plumbing company focused on residential and commercial installation, service, and repair. Our two Master Plumbers have over 50 years of experience. Let our service exceed your expectation.
"Quick turn around - Matthew was responsive to any concerns on the job and Zack did a great job replacing old water heater and adding new expansion tank! Reasonable Rates and even advised not doing one repair Zack determined was unnecessary!"
Becky H on July 2025
Locally owned and operated plumbing company focused on residential and commercial installation, service, and repair. Our two Master Plumbers have over 50 years of experience. Let our service exceed your expectation.
"Quick turn around - Matthew was responsive to any concerns on the job and Zack did a great job replacing old water heater and adding new expansion tank! Reasonable Rates and even advised not doing one repair Zack determined was unnecessary!"
Becky H on July 2025
Mr. Rooter Plumbing of Austin is standing by to take care of any plumbing issues you might have in your home. Our team is known for being friendly, punctual, knowledgeable, efficient, and clean. Our Austin plumbing services are known for being effective and competitively priced. Keep your home’s plumbing systems in tip-top conditions with the help of Mr. Rooter Plumbing of Austin. With routine maintenance, we can help you avoid major plumbing problems. But if they do happen, our repair services can get us at your door quickly to get things under control, even for emergencies that happen at odd hours and on weekends or holidays! We bring you the best of all worlds when you call on us to work on your Austin home plumbing services. You get the personability and quick turn-around times of a local plumber. But you also get the advanced training and top-grade equipment of a corporate plumbing company!
"It went well. They heiped get the manufacture to replace the heater for no charge. We had to pay for labor but still we didn't have to pay for the heater. Aaron was friendly and did a great job."
Cate S on July 2023
Mr. Rooter Plumbing of Austin is standing by to take care of any plumbing issues you might have in your home. Our team is known for being friendly, punctual, knowledgeable, efficient, and clean. Our Austin plumbing services are known for being effective and competitively priced. Keep your home’s plumbing systems in tip-top conditions with the help of Mr. Rooter Plumbing of Austin. With routine maintenance, we can help you avoid major plumbing problems. But if they do happen, our repair services can get us at your door quickly to get things under control, even for emergencies that happen at odd hours and on weekends or holidays! We bring you the best of all worlds when you call on us to work on your Austin home plumbing services. You get the personability and quick turn-around times of a local plumber. But you also get the advanced training and top-grade equipment of a corporate plumbing company!
"It went well. They heiped get the manufacture to replace the heater for no charge. We had to pay for labor but still we didn't have to pay for the heater. Aaron was friendly and did a great job."
Cate S on July 2023
Constructovate is a residential/commercial construction and remodeling company servicing from New Braunfels, Tx and surrounding areas. We want to be your "go-to" contractor for you home or business. Some of our services include remodeling, masonry, painting, decks, fences. Our organization has extensive hands on experience in all areas of the construction and remodeling industry ranging from small carpentry projects to complete construction of commercial buildings. With our experience, you can be assured that we can complete projects of any size in a timely manner. Having this experience makes our projects run smoother and in a timely manner. We believe that there is ALWAYS a solution to every problem that may arise during the construction process and we always look for the positive in every situation. Call us to schedule an estimate today! Visit our website @ Constructovate.com (previously DBA: Reliant Renovations)
"Great communication, beautiful results done in a timely manner. Detailed estimate of everything at a reasonable price. I would recommend Constructovate for any project!"
Melinda B on January 2024
Constructovate is a residential/commercial construction and remodeling company servicing from New Braunfels, Tx and surrounding areas. We want to be your "go-to" contractor for you home or business. Some of our services include remodeling, masonry, painting, decks, fences. Our organization has extensive hands on experience in all areas of the construction and remodeling industry ranging from small carpentry projects to complete construction of commercial buildings. With our experience, you can be assured that we can complete projects of any size in a timely manner. Having this experience makes our projects run smoother and in a timely manner. We believe that there is ALWAYS a solution to every problem that may arise during the construction process and we always look for the positive in every situation. Call us to schedule an estimate today! Visit our website @ Constructovate.com (previously DBA: Reliant Renovations)
"Great communication, beautiful results done in a timely manner. Detailed estimate of everything at a reasonable price. I would recommend Constructovate for any project!"
Melinda B on January 2024
Hi, we’re a locally owned and operated construction company, focused on craftsmanship and customer experience. We have 20+ years of experience and offer full house, bathroom and kitchen remodels, as well as additions and patio build outs. Let us help transform your house into the dream home you’ve always wanted with a turn-key experience; draw, design, build.
"Professionals - Excellent Work - 100% Service"
Zoila M on March 2025
Hi, we’re a locally owned and operated construction company, focused on craftsmanship and customer experience. We have 20+ years of experience and offer full house, bathroom and kitchen remodels, as well as additions and patio build outs. Let us help transform your house into the dream home you’ve always wanted with a turn-key experience; draw, design, build.
"Professionals - Excellent Work - 100% Service"
Zoila M on March 2025
Old School Builders LLC - Your trusted general building contractor in the Austin area. Also servicing Dripping Springs, Driftwood and Wimberley. With our expertise in new building and remodeling, we have been recognized with the prestigious Super Service Award in 2022,2019, 2018, 2016, 2015, 2014, and 2013. Contact us today for all your home improvement needs.
"Jimmy and Jeremy Leake did outstanding work for us on an attic storage remodel. On time, on budget and careful completion on every detail. We highly recommended them for any important project going forward."
Allison H on May 2024
Old School Builders LLC - Your trusted general building contractor in the Austin area. Also servicing Dripping Springs, Driftwood and Wimberley. With our expertise in new building and remodeling, we have been recognized with the prestigious Super Service Award in 2022,2019, 2018, 2016, 2015, 2014, and 2013. Contact us today for all your home improvement needs.
"Jimmy and Jeremy Leake did outstanding work for us on an attic storage remodel. On time, on budget and careful completion on every detail. We highly recommended them for any important project going forward."
Allison H on May 2024
Serving the Austin metro, we specialize in all plumbing repairs. We have the most reviews in Austin Texas on Angie's list. Top Plumber all A in all categories. Up to 15% off Angie customers- Call us anytime for a free estimate 512-259-7222. FREE ESTIMATES!!!!
"I really needed my outside faucet replaced, it was not working properly and was very hard to turn off, to prevent leaking. I called Excalibur Plumbing and they sent Curtis out to fix my issue. He was very friendly, courteous and easy to work with. I use this faucet a lot in the summer time to water my flower bed and my yard. It's now working better than ever! Thanks Curtis!"
Jerry B on April 2024
Serving the Austin metro, we specialize in all plumbing repairs. We have the most reviews in Austin Texas on Angie's list. Top Plumber all A in all categories. Up to 15% off Angie customers- Call us anytime for a free estimate 512-259-7222. FREE ESTIMATES!!!!
"I really needed my outside faucet replaced, it was not working properly and was very hard to turn off, to prevent leaking. I called Excalibur Plumbing and they sent Curtis out to fix my issue. He was very friendly, courteous and easy to work with. I use this faucet a lot in the summer time to water my flower bed and my yard. It's now working better than ever! Thanks Curtis!"
Jerry B on April 2024
FAQs for water heater installation and replacement projects in San Marcos, TX
You'll need an expansion tank if your home has a closed water system, which is standard in newer homes or those with backflow preventers or pressure regulators. Expanding hot water has nowhere to go in closed systems, creating potentially damaging pressure. The expansion tank provides space for this expanded water, protecting your plumbing system and water heater from premature failure. Many local building codes now require expansion tanks, and some water heater warranties may be voided without one.
For a standard 50-gallon water heater, a two-gallon expansion tank is sufficient. This sizing assumes normal household water pressure between 40 and 60 psi. If your home has higher water pressure (60 to 80 psi), consider upgrading to a slightly larger tank for added protection. The expansion tank's purpose is to accommodate the increased volume that occurs when cold water heats up, which is proportional to your water heater's capacity.
Watch for signs like dripping water around the tank, fluctuating water pressure throughout your home, or unusual noises in your plumbing system. A properly functioning expansion tank should feel light when tapped on the bottom—if it feels heavy or waterlogged, the internal bladder has likely failed. Other indicators include frequent triggering of your temperature and pressure relief valve, visible corrosion on the tank, or unexplained increases in your water bill, suggesting hidden leaks.
Most expansion tanks have a service life of five to 10 years, though some may last up to 12 years or more with proper maintenance. Factors affecting lifespan include water quality, system pressure, installation quality, and tank construction. Hard water areas often see shorter lifespans due to mineral buildup. Regular maintenance checks can help identify potential issues before complete failure. When your water heater is due for replacement, it's wise to replace the expansion tank simultaneously, even if it hasn't failed yet.
A 30-gallon water heater needs an expansion tank if your home has a closed plumbing system. The need for an expansion tank is determined by your plumbing system type rather than water heater size. Even smaller water heaters create thermal expansion when heating water. If your home has a backflow preventer, pressure regulator, or check valve on the main water line, you have a closed system that requires an expansion tank. Check your local plumbing codes, as many jurisdictions now mandate expansion tanks regardless of water heater size.
- Plumbing - Multiple Projects
- Shower Pan Install
- Plumbing for a Remodel or Addition - Install
- Plumbing Item Repair
- Water Heater - Repair or Service
- Sink Repair
- Steam Shower - Install
- Faucet Install or Replace
- Walk In Tub - Install or Replace
- Drain Repair
- Shower Install or Replace
- Pipe Repair
- Drain Line Breakage - Camera Locate
- Tankless Water Heater - Install
- Water Main - Install, Replace or Repair
- Sump Pump - Repair or Replace
- Drain Clog or Blockage - Clear
- Sewer Main - Clear
- Faucets, Fixtures and Pipes - Repair or Replace
- Plumbing Item Installation
- Sink Installation
- Pipe Installation
- Faucet Installation
- Gas Piping
- Whirlpool Bathtub Install or Replace
- Plumbing Multi-Item Installation
- Sewer Main - Install, Replace or Repair
- Drain Installation
- Plumbing Multi-item Repair
- Toilet Installation
- Bathtub Install or Replace
- Sump Pump or Interior Foundation Drains - Install
- Birmingham
- Phoenix
- Tucson
- Fresno
- Long Beach
- Los Angeles
- Modesto
- Sacramento
- San Diego
- San Francisco
- San Jose
- Denver
- Hartford
- Washington DC
- Fort Lauderdale
- Jacksonville
- Miami
- Orlando
- Tampa
- Atlanta
- Chicago
- Indianapolis
- Louisville
- New Orleans
- Baltimore
- Boston
- Detroit
- Grand Rapids
- Minneapolis
- Saint Paul
- Kansas City
- Saint Louis
- Las Vegas
- Albany
- New York
- Asheville
- Charlotte
- Greensboro
- Raleigh
- Winston Salem
- Cincinnati
- Cleveland
- Columbus
- Oklahoma City
- Portland
- Harrisburg
- Philadelphia
- Pittsburgh
- Providence
- Memphis
- Nashville
- Austin
- Dallas
- El Paso
- Fort Worth
- Houston
- San Antonio
- Salt Lake City
- Norfolk
- Richmond
- Virginia Beach
- Seattle
- Madison
- Milwaukee
Get our Angi-powered app
