Top-rated tankless water heater repair pros.

Get matched with top tankless water heater repair pros in San Marcos, TX

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Tankless water heater repair pros in San Marcos

Avatar for Mr. Rooter Plumbing of Austin
Mr. Rooter Plumbing of Austin
4.2(
23
)

Angi Approved

In business since 1970

Emergency services offered

Warranties offered

"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."
Recommended by73%of homeowners
Avatar for Team Enoch Plumbing Austin
Team Enoch Plumbing Austin
5.0(
126
)

Angi Approved

In business since 2013

Customers say: Quick response

"We spent 14K on two new AC units for our house in 2021. We had to get the technicians out almost every year and multiples a year because something is always wrong. Some technicians were not experienced enough to diagnose the problem and wasted hours at our house. They also made careless mistakes (not connecting the draining pipe back in the attack) in Aug 2025. We had to run very loud fans for 5 days just to dry the water leak from the attic to our ceiling. The same technician was sent out in Nov 2025 and made the same mistake again. Now our ceiling is leaking again. The customer service did not even acknowledge or apologize for what we are going through. I am now worried that repeated leak may have caused permanent damage to our house. I do not recommend this company."
102 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Roto-Rooter Plumbing & Water Cleanup
Roto-Rooter Plumbing & Water Cleanup
New to Angi

Angi Approved

In business since 1935

Free estimates

Emergency services offered

Roto-Rooter is a fully licensed and insured plumbing company providing 24/7 plumbing services, drain cleaning, and water damage cleanup. More people depend on Roto-Rooter than any other plumbing company in North America. \n

Avatar for Will's Plumbing & Testing Service
Will's Plumbing & Testing Service
4.8(
1,701
)

Angi Approved

Super Service Award Winner

In business since 1999

Emergency services offered

Warranties offered

"We had a late afternoon plumbing emergency. Marc Gonzales - Master from Will's Plumbing & Testing Service arrived within 1/2 hour and got to work quickly. He explained his work plan and kept us informed as the work was done. He gave us an accurate estimate as well. Very professional and knowledgeable. I’ll never call another plumbing service besides Will’s. "
2 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Fox Service Company
Fox Service Company
3.9(
17
)

Angi Approved

In business since 1972

Emergency services offered

Warranties offered

"PAID $14,000 for an Lennox system ONLY 2 YEARS AGO. Fox installed and serviced it. Recently, system stopped working and a Fox tech charged us $320 to fix. It stopped working 3 days later, so they came out again. Then, they wanted $3244 to replace the coil. NEVER buy Lennox (look up the class action lawsuit RE coils). NEVER use Fox (I've been pushed up to a "supervisor" 4 times with no resolution, the last one has yet to call). Lennox system's have faulty coils (see Reddit). Fox says they NOW don't use Lennox. (Head scratch) You make the connection. So, all I asked for was a new coil installed (part covered under warranty, 7 yrs left) and a guarantee that if it failed again (meaning I'd pay this time and have seven TX summers to go), Fox would not charge me for labor ($3244...pretty steep price too)...no call back."
50 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Excalibur Plumbing
Excalibur Plumbing
4.8(
2,051
)

Angi Approved

In business since 2010

Free estimates

Warranties offered

"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!"
3 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Leaky's Water and Air, LLC
Leaky's Water and Air, LLC
4.9(
1,117
)

Angi Approved

In business since 1991

Free estimates

Emergency services offered

"I had a Trane A/C installed by air systems. Carlos and his crew were on time, worked very efficiently and finished the installation within 1 day despite having to widen the attic opening. They cleaned up carefully and were professional in their communication. Also, their price was about $1000 less than the closest competitor. Would definitely hire them again!"
17 neighbors recently requested a quote
Recommended by96%of homeowners
Roto-Rooter Plumbing & Water Cleanup
4.4(
109
)

Angi Approved

In business since 1935

Free estimates

Emergency services offered

"Elderly Abuse …. Run I woke up to a leak in my front yard as I headed out of town. My wife called Roto Rooter as she left for work to come give us a quote. They said they only needed someone there to greet them when they arrived. So we had my 85 year old, legally blind, suffering from dementia mother, who lives next door, meet them outside so they could begin with their estimate. They never called us for a quote. Instead he replaced one section of pipe (which was only 4 ft. long), and a shut off valve (which he said was broken but was not) and charged a whopping $6,500. He walked next door and demanded payment from my blind mother. NO APPROVAL WAS GIVEN!!!! NO PHONE CALL WAS MADE!!! My mother, who isn’t mentally with us anymore, gave them her credit card and boom…… $6,500. We didn’t get a new water heater or a new sprinkler system. We got one 4 ft. section of pipe for $6,500 and a shiny new on/off valve which was not needed. That guy new what he was doing. He didn’t call us for a reason. He took one look at my blind old mom with dementia and charged whatever he wanted. He left us an arbitrary bill I could hardly read with little to no specifics. I have attached…. When I called the manager he did return half of the amount. It sounded like we were making progress. I still asked for an itemized receipt so I could see how 4 ft. of pipe and a valve would cost $3,250. If I stayed in town this repair would have cost me a total of $75 dollars in materials. He said he would get that itemized receipt and then has ghosted me ever since. I have reached out on numerous occasions. This company did not have permission to do $6,500 or $3,250 worth of work on my property. They were called for an estimate and took advantage of my elderly, blind, dementia plagued mother to run up a huge bill that no one can explain. They demanded that my mother, who isn’t the homeowner, pay $6,500. My wife waited by her phone all day for an estimate that never came. This is morally and ethically appalling at every level. Just for reference, we had our foundation lifted for $9,000 last year. They dug under the house in several areas and lifted it. This guy wanted about the same for replacing a 4 ft. section of pipe. How is this real????"
2 neighbors recently requested a quote
Recommended by78%of homeowners
...
Showing 1-10 of 1011