Licensed Plumber in Leander, TX

CMM Plumbing LLC is proud to serve homeowners, builders, and businesses across Leander and Central Texas with over 20 years of experience. Leander is one of the fastest-growing communities in the country, and our skilled plumbing team keeps pace with it—handling everything from rough-in plumbing on brand-new builds to repairs and upgrades in the town's older, established neighborhoods. Give us a call anytime at (737) 233-1822 for reliable, on-site service.

CMM Plumbing LLC proudly offers a 2-year warranty on labor for all completed work.

Leander has grown faster than almost any city in the country over the past several years, and that growth shapes the kind of plumbing work we see day to day. A large part of our workload here is new construction—rough-in plumbing for homes still framed in studs, fixture installations before closing, and final walkthroughs to make sure everything is ready for inspection. New subdivisions mean new PEX and PVC systems, tankless water heater installs, and gas line hookups for builders who need a plumber they can count on to stay on schedule.

At the same time, Leander isn't only new construction. Older, established pockets of town closer to the original townsite still have homes with aging galvanized or cast iron piping, older water heaters, and fixtures that are due for an upgrade. Central Texas's clay-heavy soil also means slab foundations across the area—new and old—can be prone to shifting, which sometimes leads to slab leaks that need to be located and repaired carefully. Whether you're closing on a new build off Ronald Reagan Boulevard or maintaining a home that's been in the family for years, our goal is the same: show up on time, communicate clearly, and fix the problem the right way.

• Plumbing Maintenance: Plumbing issues rarely happen out of nowhere — they build up over time. Our plumbing maintenance helps catch small problems early, like slow drains, worn valves, pressure issues, and minor leaks, before they turn into expensive repairs. It's a great option for homeowners, landlords, and businesses who want fewer surprises.
• Drain Cleaning: Slow drains and recurring clogs are usually caused by grease, soap buildup, hard water scaling, or debris trapped in the line. We clear kitchen, bathroom, and main sewer drains thoroughly so the problem doesn't come right back. Most drain issues can be resolved in a single visit.
• Sewer Repair and Replacement: If multiple drains are backing up or you're dealing with repeated clogs, the issue may be in the main sewer line. In Austin, tree roots and aging sewer lines are common causes of sewer damage. We diagnose the problem, explain repair options clearly, and restore proper flow as quickly as possible.
• Leak Detection and Repair: Leaks aren't always obvious — many show up as higher water bills, damp spots, low water pressure, or the sound of running water when nothing is on. We locate the source of the leak and repair it properly to prevent water damage and mold. Whether it's under a sink or behind a wall, we focus on accurate diagnosis first.
• Repiping Services: Older plumbing systems can lead to frequent leaks, low pressure, discolored water, or repeated pipe repairs. Repiping replaces failing lines with new, reliable piping designed to last. We walk you through the best approach for your home and complete the work with minimal disruption.
• Sump Pump Services: A sump pump is your first line of defense against flooding when heavy rain hits. We install, maintain, and repair sump pumps to help protect basements, crawl spaces, and low-lying areas from water intrusion. If your pump fails, we can diagnose the issue quickly and restore protection.
• Water Heater Repair and Replacement: Hot water problems are often caused by sediment buildup, worn components, or hard water damage — especially in Austin. We repair and replace both tank and tankless water heaters, and we help you choose the right unit for your household's needs. Many repairs can be completed the same day.
• Fixture Repair and Installation: Dripping faucets, loose fixtures, and leaking showerheads waste water and can drive up your bill over time. We repair and install sinks, faucets, shower fixtures, and more — making sure everything is sealed correctly and working the way it should. It's one of the fastest ways to improve comfort and prevent damage.
• Backflow Testing and Prevention: Backflow issues can allow contaminated water to flow into the clean water supply, which is why testing and prevention are so important. We provide backflow testing, repairs, and prevention solutions for homes and commercial properties. Our goal is to keep your water supply safe and code-compliant.
• Hydro Jetting: Some clogs are too severe for standard drain clearing — especially when grease, roots, or heavy buildup are involved. Hydro jetting uses high-pressure water to fully clean the inside of sewer lines and restore proper flow. It's one of the most effective solutions for recurring drain and sewer problems.
• Water Treatment and Filtration: Austin's water can be tough on plumbing, appliances, and fixtures due to mineral content and hard water buildup. We install and maintain water filtration and treatment systems to improve water quality and reduce scaling. Cleaner water can also help extend the life of your plumbing system.
• Toilet Repair and Installation: A running toilet, weak flush, or frequent clogs usually points to worn internal parts or a deeper drain issue. We repair common toilet problems and install new toilets with proper sealing and leak prevention. In many cases, toilet repairs can be handled in one visit.

1. Discovery & Consultation

We begin with a detailed phone or on-site consultation to understand your needs and goals—whether it's rough-in plumbing for a new build or a slow drain in an established Leander home. We take the time to listen, ask the right questions, and assess your current plumbing situation so we can recommend the best solution.

2. Design & Proposal

Once we've identified the issue or project scope, we prepare a transparent, itemized estimate with a clear timeline. You'll know exactly what to expect before any work begins—no surprises, just honest communication and professional planning.

3. Permitting & Preparation

For larger jobs like new construction plumbing, water heater replacements, or gas line installation, we handle all necessary permits with the City of Leander or Williamson County. We also take steps to prepare your space—laying protective coverings and ensuring the work area is clean and safe.

4. Professional Execution

Our licensed, certified plumbers carry out the work with precision and care. We arrive on time, work efficiently, respect your space, and follow all local codes and best practices to deliver lasting results you can trust.

5. Quality Check & Walkthrough

When the job is complete, we perform a thorough inspection to make sure everything meets our quality standards. We then walk you through the finished work, answer your questions, and share helpful tips for maintenance or care.

6. Post-Project Support

Our relationship doesn't end when the tools are packed up. If you have questions, need adjustments, or want to schedule future maintenance, our team is just a call away. We're here to support you long after the job is done.

Contact us to schedule your service or consultation. Experience Leander's trusted plumbing partner.

CMM Plumbing LLC has proudly served Central Texas since 2012, and Leander has become one of our most exciting communities to work in. Located about 25 miles northwest of downtown Austin in Williamson County, Leander has been ranked among the fastest-growing cities in the country, and you can see that growth in the new subdivisions, schools, and businesses popping up all over town. Our family-owned team brings over two decades of experience to every job—offering fast, reliable plumbing solutions for both new-construction builders and longtime homeowners alike.

Some of our favorite local highlights include:

• The Capital MetroRail Red Line: Leander Station serves as the northern terminus of Capital Metro's Red Line commuter rail, giving residents an easy, car-free ride into downtown Austin—a big part of what makes Leander such an attractive place to put down roots.
• A Fast-Growing Community: Leander has been recognized as one of the fastest-growing cities in the entire country, and we're proud to be one of the local trades helping new families and businesses get settled in as the community expands.
• Lake Travis & the Hill Country: Leander sits within easy reach of Lake Travis and the rolling Texas Hill Country, giving residents boating, fishing, and scenic drives right in their backyard.
• Balcones Canyonlands National Wildlife Refuge: Just outside town, this refuge protects the rugged Hill Country landscape and its wildlife—a reminder of the natural beauty that surrounds Leander even as it grows.

Leander's mix of new families, longtime residents, and local builders makes this work meaningful. We're proud to play a small part in helping Leander grow while doing right by the homeowners and businesses who call it home.

• Deep Local Knowledge: With roots in Central Texas, we understand the plumbing challenges Leander homeowners and builders face — from hard water scaling to expansive clay soils, slab foundations, and the demands of a community building new homes at a rapid pace.
• Certified Expertise: Our team is trained and certified in advanced systems like Navien and Rinnai tankless water heaters, along with gas line and water line installations — so your work is completed safely and correctly.
• Permits & Code Compliance: When a plumbing project requires it, we can help handle permits and ensure work is completed to meet City of Leander or Williamson County requirements — especially for new construction, replacements, and remodel plumbing.
• Reliable Emergency Service: We're available 24/7 for plumbing emergencies and prioritize fast response across the greater Leander area to help prevent water damage and costly repairs.
• Transparent Pricing: We provide upfront estimates with no hidden fees, so you know exactly what to expect before any work begins.
• Proven Local Reputation: CMM Plumbing is backed by strong local reviews from Central Texas homeowners and businesses who value clear communication, professionalism, and quality workmanship.
• Strong Work Ethic: Our licensed plumbers are respectful, efficient, and dedicated to delivering high-quality results that stand the test of time.
• Customer-Focused Approach: From first call to final walkthrough, we focus on clear communication, dependable service, and your total satisfaction.

We've completed hundreds of plumbing jobs across Leander and surrounding communities, and we're proud to be the team local homeowners and builders call when they want the job done right.

CMM Plumbing is synonymous with 5-star service, consistently exceeding expectations with our exceptional craftsmanship, customer care, and timely response to every call.

We proudly service the following cities and neighborhoods:

• Leander
• Austin
• Cedar Park
• Del Valle
• Buda
• Driftwood
• Taylor
• Dripping Springs
• Georgetown
• Hutto
• Kyle
• Liberty Hill
• Manchaca
• Manor
• Pflugerville
• Round Rock
• Spicewood
• Elgin
• Coupland

Not seeing your area? Give us a call at (737) 233-1822

CMM Plumbing provides the full range of residential and commercial plumbing services throughout Leander and the surrounding area:

• New Construction Plumbing
• Residential Plumbing
• Commercial Plumbing
• Camera Inspections
• Drain Cleaning
• Gas Lines
• Remodeling
• Water Heaters
• Tankless Water Heater
• Emergency Plumbers
• House Leaks
• Plumbing Maintenance
• Sewer Repair and Replacement
• Repiping Services
• Sump Pump Services
• Fixture Repair and Installation
• Backflow Testing and Prevention
• Hydro Jetting
• Water Treatment and Filtration
• Toilet Repair and Installation