Expert Residential, Commercial, and Tunnel Plumbing Services in
San Antonio, TX
Residential & Commercial Plumber in San Antonio, TX
With over 25 years of experience, COR Plumbing is your trusted family-owned and operated plumbing company serving San Antonio, New Braunfels, Cibolo, Converse, and surrounding areas. Our friendly, licensed plumbers provide reliable solutions for both residential and commercial plumbing, ensuring your home or business is safe, efficient, and worry-free.
Our Plumbing Services
Looking for a plumber in San Antonio you can trust? Our licensed and insured plumbing company specializes in residential plumbing, commercial plumbing, and tunnel plumbing for slab foundations. We also provide new construction plumbing, handling everything from building a whole house from the ground up to installing plumbing systems in commercial buildings and restaurants. From leak detection and pipe repair to drain line replacement and water heater installation, we handle every job with precision and care. Our experienced San Antonio plumbing contractors are experts in diagnosing and repairing slab leaks, ensuring the safety and stability of your home or business. When you need reliable plumbing services near you, count on our team for fast, affordable, and long-lasting solutions.
From leaky faucets and toilet repairs to bathroom and kitchen remodels, our team handles all your home plumbing needs. Learn more on our Residential Plumbing page.
Keep your business running smoothly with expert services for restaurants, offices, retail, and industrial properties. We provide repairs, preventative maintenance, fixture installation, and gas line work. Discover our Commercial Plumbing services.
Whether you need a repair, replacement, or installation, we handle gas and electric water heaters to ensure your home or business has reliable hot water. See our Water Heater page.
Protect your plumbing and appliances with professional water softener installation and maintenance. Learn more about the benefits of water softeners.
Our team clears clogs, grease, and debris in drains and sewer lines using advanced techniques, including hydro jetting. Explore our Drain & Sewer Services.
We detect hidden leaks in faucets, toilets, slab foundations, and sewer lines, preventing costly water damage. Read more on our Leak Detection page.
Specialized tunnel plumbing allows us to repair under-slab pipes without major demolition—critical in the San Antonio area with shifting clay soils. Learn more on our Tunnel Plumbing page.
As a leading plumbing company in San Antonio, we handle a wide range of common plumbing repairs
Leaky faucets, toilets, garbage disposals, clogged drains - we do repair all plumbing!
Why Early Detection Matters for Slab Foundations
San Antonio homes with under-slab plumbing are prone to leaks due to expansive clay soils that shift with seasonal moisture changes. Early detection of leaks or pipe damage can:
- Prevent foundation damage and soil erosion
- Reduce water waste and utility costs
- Avoid mold and indoor air quality issues
- Minimize costly emergency repairs
Our
licensed plumbers use advanced tools and cameras to detect hidden leaks and recommend solutions before small problems become major repairs.
How Tunnel Plumbing Repairs Provide a Better Solution
Traditional slab plumbing repairs can be invasive and disruptive, often requiring costly concrete removal and extended repair time. COR Plumbing, LLC offers an advanced tunnel plumbing service that restores damaged pipes with minimal impact. Instead of breaking through floors, our technicians carefully tunnel from outside your home to reach the pipes under the slab.
This approach offers several advantages:
- Less damage to your property and landscaping
- Reduced repair time and labor costs
- Cleaner, more efficient repair process
- Safer for your home’s structural integrity
Our team uses specialized tools and techniques to access, repair, or replace faulty pipes while protecting your home’s foundation and interior spaces.
Detailed Steps Involved in Our Tunnel Plumbing Process
Understanding the repair process helps ease concerns and sets clear expectations. Here is how COR Plumbing, LLC handles tunnel plumbing repairs:
1. Inspection and Diagnostic Testing
We begin with a thorough inspection to pinpoint pipe issues using video camera technology and pressure testing. This helps identify exact locations of leaks or cracks beneath your slab foundation.
2. Planning the Access Point
Next, we determine the best spot outside your home to create a small tunnel that provides access to the damaged pipe. This step avoids unnecessary disruption to your landscaping or hardscaping.
3. Excavation and Tunnel Creation
Our technicians carefully excavate a trench and tunnel underneath the slab to reach the faulty plumbing without disturbing your floors or walls.
4. Repair or Pipe Replacement
Once accessed, damaged pipes are repaired or replaced using durable materials built to last and withstand soil movement.
5. Closure and Site Restoration
Finally, we backfill and restore the entrance area, leaving your property neat and undisturbed.
Why Choose COR Plumbing?
Over 25 Years of Experience – Trusted experts for San Antonio and surrounding areas
Family-Owned & Operated – Personalized, reliable service
Friendly, Licensed Plumbers – Professional and courteous service every time
Free Estimates –
Know the cost upfront with no surprises
Comprehensive Plumbing Solutions – Residential, commercial, water heaters, water softeners, drains, leaks, and under-slab repairs
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I had them fix a icemaker intake valve for my new refrigerator.
Tech was professional price was perfect and the entire job from start to finish was less than 20 minutes.
Very impressed and wouldn’t choose anyone else!
James L.
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Had an emergency at my mom’s house and Jason came out quickly and got the job done fast! He was professional, polite and explained everything in terms we could all understand! Would highly recommend Jason — he saved the day!
Cassandra L.
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Cesar and his team are great to work with! Highly recommend for all your plumbing needs.
Kesha T.
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COR plumbers did great work in my home today They know their stuff. I’m definitely keeping COR for all my plumbing needs. 👍🏼 …
Laura S.
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Cor Plumbing was very responsive. Their plumbers who worked on my kitchen sink did excellent work...they were friendly, knowledgeable and professional. Would I hire them again or refer them to a friend or neighbor?--Yes, absolutely!
Don T.
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I have been a business customer of COR Plumbing for 2+ years now. Their service, quality of work and response time is top notch. For my business they have repaired leaks in pipes, fixed a water heater issue, corrected poor plumbing work that previous sub contractor left me with in our bathrooms and most recently fixed a water leak in a water fountain. I use and will continue to use COR for all my business plumbing needs. Thank you COR!
Robert C.
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COR Plumbing is a fantastic business to work with. They respond quickly, the technicians are knowledgeable, and they do what it takes to get your issue resolved quickly. I highly recommend them for all of your plumbing needs.
Greg P.
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Quick and efficient work. We were very happy to be up and running again after a brief pause in business due to a leak. Thank you.
Debra C.
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If you need a reliable, professional and hardworking plumbing company you must call Cor Plumbing . They helped us when our house had major plumbing issues . They are our plumbing company and we will highly recommend them to everyone. Thank you for everything you’ve done.
Jesse L.
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I had them fix a icemaker intake valve for my new refrigerator.
Tech was professional price was perfect and the entire job from start to finish was less than 20 minutes.
Very impressed and wouldn’t choose anyone else!
James L.
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Had an emergency at my mom’s house and Jason came out quickly and got the job done fast! He was professional, polite and explained everything in terms we could all understand! Would highly recommend Jason — he saved the day!
Cassandra L.
