Kosta Plumbing
Company Overview
If you require water heater replacements, whether for conventional or on-demand systems, our expert plumbers can handle it! Our team of licensed plumbers can assist you with all your plumbing repairs. Our company holds a valid license from the State of California. We guarantee the work is done right on the first attempt. Our experienced professionals will provide assistance. I assure you will be pleased. Authorized Plumbing Provider License ID 1047367. Kosta Plumbing. Wondering about prices? You don’t have to just believe us; see for yourself! Reach out via call, text, or book online now!
Quality, reliability, and satisfaction.
Our commitment to San Diego spans many years, and we take great pride in helping our amazing community. We take immense pride in our work.
Business Services
- Bathtub installation
- Bathtub repair
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 8:00 AM - 5:00 PM |
Tue: | 8:00 AM - 5:00 PM |
Wed: | 8:00 AM - 5:00 PM |
Thu: | 8:00 AM - 5:00 PM |
Fri: | 8:00 AM - 5:00 PM |
Sat: | 8:00 AM - 12:00 PM |
Sun: | Closed |
Recommended Customer Reviews

George of Kosta Plumbing recently replaced my hot water heater. He was subcontracting to Unimaster Plumbing (a terrible company) that was contracted by Sears' Home warranty (a waste of money). George was very personable and did a good job. I highly recommend him, and will likely contact him directly to use him again when I have a plumbing issue.

The hot water heater in my rental property is leaking water and tenant shut off the main water valve because the valve in hot water heater was not working too. I called my warranty company old republic home protection very late at night to file the repair request. They assigned Kosta plumbing. I was worry of not able to restore the water and hot water heater fast enough for the tenant.
George from Kosta plumbing picked up my phone the next day morning. He went to the property in two hour to check it out and filed the replacement to the warranty company immediately. He arranged to replace the hot water heater and new valve the very next day.
He and his office lady are responsive and helpful. This is very hard to find especially a vender from home warranty company.
Thank you George! I will use him again for future plumbing need no question!

Thank you Kosta Plumbing! I really appreciate the quick response and the great work you guys did at my rental property.
I had no idea where the leak was coming from and your tech was able to locate and fix the leak.
Highly recommended! Thank you guys!

My wife woke up early to go to work today Saturday. I guess she didn't want to wake me so she let me sleep. When I got up around 7:30am and went to the restroom, there were towels in the floor and it was wet. I went out side to see the water heater and it had indeed burst and water all over. So the first step was to find a plumber and, the first place to look was here on Yelp. I have not been mislead by either positive or negative reviews because they are from people like me that tell it like it is. I searched for a plumber in my zip code and found Kosta. I saw he was open until 12 noon today and I figured he couldn't do he job today. But I called anyway. And to my pleasant surprise, George said ""yes. I will do it."" He asked me for pics and I sent them. In about an hour he had arrived with a new Rheem water heater. By 11:30am, George had finished the work and we had hot water again. I can't say enough nice things. George was very professional, courteous and polite. He hauled away my old water heater. You know, many times emergencies seem to happen on the weekends. And many businesses aren't available. Plumbing issues are stressful but, they don't have to be if George is around I provide you peace of mind. Which is what he did for me and my family today. Thanks George!

George at Kosta Plumbing is extremely knowledgeable about his trade. When my Water Heater unexpectedly failed he was able to expertly diagnose the problem and identify the best path forward. George went above and beyond to contact the manufacturer of the water heater and see if spare parts were available. George is proactive, very responsive, and gives a fair price. I would recommend him and will be using Kosta Plumbing for my next project.

Great coordination, value and service. I had Kosta plumbing remove and replace my toilet with a different one that I had picked out from a local hardware store. They picked it up from the store, did the install and removal on time and let me pay electronically, which was really convenient.

George was prompt and did the repairs for a bit less than quoted, which was already fair. Would use again and again.

George is awesome, he came right away to my house with a new and affordable water heater to instal and he takes the old one. and also changed my kitchen sink faucet. Super clean, friendly and profesional. I would definitely recommend him and will call him again need be.

George came to the house through our home warranty company and did an amazing job! Our shower was leaking because of a faulty cartridge which he replaced. I appreciate his work ethic and professionalism. Will definitively call Kosta Plumbing and Water Heaters for future issues.

My water heater broke and floated the garage floor. My coworker recommend me Kosta Plumbing. When I called then the guy was so professional and honest, He explain to me every step and help me with my problem. Also He gave me the best quote in the area. Excellent job. Thank You George