Commercial Plumbing in Katy, TX

Reliable service for offices, medical and retail — businesses of every size.

Expert commercial plumbing for Katy & Houston Homes

When your business has a plumbing problem, downtime costs money. We provide dependable commercial plumbing service for offices, medical and dental clinics, restaurants, retail spaces, and property managers throughout Katy and Houston. From routine maintenance to emergency repairs and full build-outs, we work around your schedule, communicate clearly, and stand behind every job with our workmanship warranty.

Signs It's Time to Call Us

• Recurring drain clogs in a commercial kitchen or restroom
• A water heater that can't keep up with business demand
• Sewer backups or slow drainage across multiple fixtures
• A sudden spike in your commercial water bill
• Fixture failures in high-traffic restrooms
• Planning a tenant build-out or facility renovation

What's Included

• Commercial drain and sewer cleaning
• Commercial water heater and boiler service
• Backflow prevention testing and installation
• Grease trap service for restaurants
• Restroom and kitchen fixture repair and replacement
• Tenant build-out and new construction plumbing

Call Us

Talk to a real human who knows plumbing. We answer the phone.

We Diagnose

We find the real problem — not just the symptom — and explain it plainly.

Upfront Price

Flat-rate quote before we start. No hourly surprises, no pressure upsells.

Done Right

Quality work backed by our written workmanship warranty. Done once, done right.

"Obsta Plumbing came out the same day when our water heater stopped working. Paul diagnosed the problem quickly, gave us a fair upfront price, and had us back in hot water by that evening. Honest, professional, and genuinely nice people. This is the only plumber I'll call in Katy."

"We had a whole-home repipe done and the crew was incredible. They protected our floors, worked efficiently, and cleaned up every evening. Dorinda was so helpful coordinating everything. The new water pressure is amazing. Highly recommend this family-owned company."

"Called them about a toilet that wouldn't stop running. They came out the same day, fixed it in under an hour, and the price was exactly what they quoted. No upsells, no surprises. I've already recommended Obsta to three neighbors in Cinco Ranch."

"Our kitchen drain was backing up and we had no idea why. They ran a camera down the line and found tree roots — showed us the video and explained everything. Cleared the line and the price was fair. These are honest plumbers who actually explain what's going on."

"We've used Obsta Plumbing for years — they installed our water softener, replaced two water heaters, and handle all our routine maintenance. Always on time, always upfront pricing, always quality work. Paul and Dorinda run a great family business."

"Our restaurant had a major drain backup on a busy weekend. Obsta came out fast, cleared the line, and got us back up and running with minimal downtime. They understand commercial plumbing and they communicate clearly. We use them for all our maintenance now."