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Regulated by the Texas State Board of Plumbing Examiners
1-800-845-6584; 929 E 41st St Austin, TX. 78751
Justin Foster - M37787

Cornerstone Plumbing LLC BBB Business Review

Full-Service Plumbing Solutions by Cornerstone Plumbing

Cornerstone Plumbing has been providing residential, commercial, or industrial plumbing services to the good people of Waco, Texas, and surrounding areas since 2006. We've seen every kind of fixture known to man, and we've helped install them, too. For big jobs, we've got everything you need to get them up and running. We offer the most competitive pricing on everything from small, in-home repairs, to large emergency commercial jobs, and even mass-scale industrial needs. No task is too small, no job too daunting. From new builds to remodels, commercial stores, industrial buildings, and anything in-between. Licensed, insured and bonded. 10% Military and Senior Discount. Free estimates.

At Cornerstone Plumbing, we understand that every property—whether it’s a home, a restaurant, an apartment complex, or an industrial facility—relies on a fully functional plumbing system. That’s why we offer a wide range of expert plumbing services tailored to meet the specific needs of residential, commercial, and industrial clients. From emergency repairs to routine maintenance and system upgrades, our team is equipped with the tools, training, and experience to handle it all.


Water Heater Repair, Install and Maintenance | Sewer Blockages | Septic and Grease Trap Pumping | Natural Gas Repair and Replace | Propane Repair and Replacement | Water Leak Repair and Replacement | Backflow Testing and Replacement | Hydro Jetting | Video Inspection

Cornerstone Plumbing Promotes Health & Safety

Cornerstone Plumbing understands and maintains safe work sites and implements safety training for all crew members.

We believe that all work site injuries, occupational illnesses, and environmental incidents are preventable. Our number one commitment is to maintain the health and well being of the public and our crews.

We are committed to providing a safe, injury-free work site. Our team is continually focused on the safety of our work sites. On all jobs, our commitment to safety is constantly communicated to every level of our organization.

Water Heater Repair, Installation & Maintenance

Whether your water heater has stopped working, isn’t heating efficiently, or simply needs replacing, we provide same-day service and honest recommendations. We work with both tank and tankless systems, ensuring safe installation, routine flushing, and long-term care. Additionally, we help homeowners choose the right size and model based on their household needs, energy goals, and budget. Routine water heater maintenance from our team includes sediment flushing, anode rod inspection, and thermostat calibration to ensure consistent performance.

Sewer Blockages

Clogged sewer lines can cause serious damage if ignored. We use advanced techniques—including hydro jetting and video inspections—to clear blockages quickly and restore full flow, without digging up your yard unless absolutely necessary. Whether it's a one-time emergency or recurring issue, we diagnose the root cause and offer lasting solutions. Our team also provides education on preventative measures, such as proper waste disposal and routine drain inspections, to keep your system running efficiently.

Septic and Grease Trap Pumping

For homes with septic systems, we offer dependable pumping services to keep your tank operating properly. We also pump residential grease traps to prevent backups and maintain sanitation. Our septic services include system checks, baffle inspection, and sludge level monitoring to ensure optimal performance. Regular grease trap maintenance prevents costly clogs and supports local environmental regulations.

Water Leak Detection and Repair

Leaks in your plumbing can cause water damage, mold, and higher bills. We locate and repair leaks in walls, ceilings, floors, and underground lines using precision tools that minimize disruption to your home. Our non-invasive methods and detailed leak reports help you understand the issue and avoid unnecessary demolition. We also offer full repiping solutions for homes with aging or damaged plumbing systems.

Natural Gas and Propane Line Repairs

Whether your home uses natural gas or propane, we repair and replace faulty lines and fittings with full safety compliance. If you smell gas or have failing appliances, we respond quickly to prevent hazards. We handle everything from leak detection to complete system replacement, with a focus on safety, efficiency, and code compliance. Our team also installs new lines for gas-powered stoves, heaters, and outdoor appliances.

Backflow Testing and Replacement

Preventing contaminated water from flowing back into your home’s supply is essential. We provide certified backflow testing and repair or replace devices that fail inspection, ensuring your water is safe. Our technicians are certified to handle both testing and mitigation for residential backflow systems. We also offer reminders for annual testing and provide detailed reports for local compliance.

Commercial Plumbing Services

Businesses can’t afford plumbing issues to disrupt their operations. At Cornerstone Plumbing, we help commercial clients stay compliant, operational, and efficient with reliable plumbing services designed for high-traffic and code-sensitive environments.

Hydro Jetting for High-Demand Drain Systems

We offer commercial hydro jetting to keep your drain lines clear of grease, food waste, sludge, and debris—especially important for restaurants, hotels, and multi-tenant facilities. Regular maintenance plans are available to reduce emergency calls. Our hydro jetting services are scheduled during off-peak hours to minimize disruption and include pre- and post-service video inspections. We also provide documentation for health inspections and insurance purposes.

Sewer and Drain Cleaning

From simple clogs to major blockages, we use commercial-grade equipment to clear drains and sewers without damaging your pipes. Our team can handle large-diameter piping systems and hard-to-reach areas. We also implement preventive strategies such as enzyme treatments, grease interceptor checks, and scheduled cleanings. Businesses can opt into service contracts that ensure consistent maintenance at a predictable cost.

Septic and Grease Trap Services

Regular pumping and maintenance of grease traps and septic systems help prevent downtime and avoid health code violations. We offer scheduled services to keep your facility clean and compliant. Our team also provides compliance documentation and works with inspectors to make sure all standards are met. Emergency pumping is available for urgent issues, and we can scale our services to fit facilities of all sizes.

Video Pipe Inspections

Using high-resolution camera systems, we can inspect your commercial plumbing from the inside. This helps identify issues like pipe corrosion, root intrusion, and alignment problems before they cause disruptions. Our camera inspections are often used during tenant transitions, property purchases, or remodeling projects. Each inspection includes a full video file and written report.

Natural Gas and Propane Systems

If your facility uses gas-powered equipment, we install, test, and repair gas and propane lines to ensure uninterrupted service and full code compliance. We also conduct pressure tests, odorant checks, and leak detection services. Whether you’re expanding your kitchen or updating an HVAC system, our certified technicians ensure everything is done safely and to code.

Backflow Prevention

Commercial backflow systems must be tested and certified annually. We handle testing, maintenance, and replacement to ensure your system passes inspection and meets all regulatory requirements. We maintain digital records for all clients and provide annual reminders so you never miss a deadline. Our team can also install new prevention assemblies as needed.

Industrial Plumbing Services

Industrial facilities face some of the toughest plumbing demands, with heavy-duty systems, complex layouts, and strict safety standards. Cornerstone Plumbing delivers scalable, code-compliant solutions to keep your operations running smoothly.

High-Capacity Water Heater Systems

We service large-capacity water heaters used in manufacturing, processing, and warehousing. From installation to preventive maintenance, we ensure reliable hot water flow for your facility’s daily needs. We also design custom hot water solutions that meet your energy efficiency goals and peak usage demands. Our service includes heat exchanger cleaning, valve replacement, and performance audits.

Industrial Sewer Line Maintenance

Backups in industrial sewer systems can lead to shutdowns and serious hazards. We offer hydro jetting, rodding, and vacuum pumping for large-scale systems, reducing downtime and avoiding fines. Our team also performs pipeline integrity testing and root removal to ensure uninterrupted operation. Scheduled maintenance agreements are available for high-risk systems.

Grease Trap and Wastewater Management

We provide industrial-grade grease trap cleaning and wastewater pumping. Our vacuum trucks are equipped to handle heavy-duty pumping, including sludge, oils, and waste byproducts. We offer same-day emergency service and scheduled waste hauling to approved disposal facilities. Our technicians ensure all work complies with environmental and safety regulations.

Gas and Propane Piping

We install and service gas and propane lines for industrial heating systems, generators, ovens, and specialty equipment. All work is tested for leaks and built to meet safety standards. We also provide line sizing, system balancing, and meter installation for new facilities or expansions. Compliance documentation is included with every project.

Leak Detection and Repair

Pressure loss or undetected water loss can severely impact production. We use thermal imaging and acoustic leak detection to pinpoint problems in large-scale systems, followed by swift, lasting repairs. We understand that downtime is costly, so our crews are trained for fast turnaround with minimal disruption. Custom monitoring systems are also available for sensitive areas.

Backflow Control for Industrial Systems

Industrial operations often require specialized backflow prevention due to chemical exposure or high water usage. We inspect and service these systems to maintain safety and meet all regulations. Whether it’s a new installation or replacement, we ensure proper configuration, testing, and certification. Annual reports are stored securely and accessible for audits.

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If you're facing a plumbing issue or want to stay ahead of future problems with regular maintenance, Cornerstone Plumbing is ready to help. We offer fast response times, thorough diagnostics, and long-term solutions for clients of every size.

Call today to schedule a service visit or consultation—and experience the difference of working with a team that puts integrity and quality first.