Alt Plumbing and Leak Detection
Company Overview
At Alt Plumbing, we tackle projects ranging from minor issues like a jammed disposal or a running toilet to larger undertakings such as remodels and the replacement of sewer, gas, or water lines. Leak detection and repair is our forte, and we’ll guide you through dealing with your insurance company. Additionally, we focus on high-end fixtures for remodels.
Hello, I’m John, a second-generation plumber. With more than 30 years of experience, my family-owned business is dedicated to quality plumbing services. I take pride in my work and strive to ensure my customers are satisfied. If our service doesn’t meet your expectations, I am committed to making it right. I use high-quality materials that may cost a bit more but offer greater durability over time. I aim to present all available options to facilitate an informed decision regarding the best plumbing solution for your home. We take pride in our work and eagerly anticipate meeting you. We treat our clients like family. You can count on us to be reliable, punctual, courteous, ethical, and fair. We aim to impress you with our service and earn your loyalty.
We are the go-to solution for all your plumbing needs in North County. We welcome your questions and feedback, so please reach out anytime. We can’t wait to hear from you soon.
Your business is essential for our growth.
John Alt, Owner
As a second-generation plumber, I am a proud local of North County San Diego. I have a deep passion for my career, my family, and providing excellent service to my clients. I am confident in my ability to deliver top-quality service with the best materials, one client at a time.
Business Services
- Bathtub installation
- Bathtub repair
- Damage restoration
- 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
- Mold remediation
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer 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: | 7:00 AM - 11:00 PM |
Tue: | 7:00 AM - 11:00 PM |
Wed: | 7:00 AM - 11:00 PM |
Thu: | 7:00 AM - 11:00 PM |
Fri: | 7:00 AM - 11:00 PM |
Sat: | 7:00 AM - 11:00 PM |
Sun: | 7:00 AM - 11:00 PM |
Recommended Customer Reviews

John was absolutely terrific and super helpful! We called him for a master shower draining issue and because our water bill had been so high and needed leak detection services. He was very prompt, there was no service fee and he fixed the master drain right away. He thoroughly spent time asking questions, looking at every zone on our water irrigation system for our yards and making notes. We found out very quickly that we were wasting a ton of water through a broken irrigation system. He answered all our questions, gave us super valuable information, and genuinely cared about the issue to fix it. I will 1000% choose him and this company every time for any plumbing issue!

Made an appointment on Saturday over phone for a Monday appointment. Got verbal confirmation from office manager and email confirmation from the system. No one showed up and no one called. When receiving my inquiry call at the end of day, the office had no idea what had happened. Not very professional, in my definition.

Fast, skilled, clean and courteous, service. Best plumbing company ever. Highly recommended

John Alt is such a great guy to work with. He listens and knows the plumbing solution to any plumbing issue. He's a hard worker and really cares about taking care of the customer. I would recommend him each and every time to anyone needing an honest and experienced plumber.

Good service, fast response, price is also reasonable. Richie is the hero guy to provide service to me.

I encountered a sudden drop in water pressure on my kitchen faucet. My wife and I tried to fix the issue ourselves thinking it was the cartridge that was bad. But we had no success. It was time to call a professional and I contacted Alt plumbing. They showed up on time and diagnosed the problem within 30 to 40 minutes and fixed my faucet. They were easy to work with the price was very reasonable. I would definitely recommend them for plumbing issues.

Probably can't say enough good things about my experience! We had a leak in the garage ceiling which we discovered late on Friday night. I started calling plumbers Saturday morning and spoke to the very friendly and nice Sydnee who said John would be able to get to me that day and gave me a 3 hour window. John was at my house right in the middle of that time frame and quickly discovered the source of the leak in a very tricky, poorly accessible spot. He was still able to to get his hands in there to fix it with minimal removal of dry wall and a lot of dexterity. Coupled with the fact that John is very friendly, knowledgable, professional and efficient...and charged me a very fair price...I couldn't have been happier. I thought I'd need to have the water turned off all weekend as other plumbers were either closed or said they couldn't come out until Monday! I highly recommend John and Alt plumbing!!

Great plumber!!! Hard working, fast, and very nice people. It is affordable and quality plumbing. They are very respectful around the house and clean up better then they found it. 100% recommend them. The owner John is a great guy.

Best plumber. Quickly figured out a complex problem and cost effectively solved it. He spends the time to understand an issue and then solve it. A true master of his craft.

We are really happy with Alt Plumbing! They are friendly and they really know what they are doing. They made it very clear when they could save me money and what they were going to do. Very trustworthy. Would definitely recommend!