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Houston Guide to Commercial Remodel Plumbing

As a facility manager, general contractor, or business owner in Houston, you know that a commercial renovation or tenant improvement project is a complex undertaking. While aesthetics and layout are important, the project’s success hinges on the unseen infrastructure. The plumbing system is the operational core of any commercial space—from a multi-stall restroom in a medical office to a high-volume kitchen in a restaurant. Getting it right requires expertise, precision, and a deep understanding of Houston’s codes. That’s where a trusted partner like HoustonCommercialPlumbing.com makes all the difference.

This guide provides a comprehensive overview of the plumbing considerations for commercial bathroom and kitchen remodels in Houston. It’s designed to help you plan effectively, avoid common pitfalls, and ensure your project is completed on time, on budget, and to the highest standards of safety and compliance.

Pre-Construction Plumbing Planning Checklist

Thorough planning is the most critical phase for any commercial plumbing project. A detailed pre-construction process prevents costly delays and change orders.

  • Define the Scope Matrix: Clearly document what existing systems will be modified, replaced, or abandoned.
  • Review City of Houston Codes: Ensure the plan meets all local amendments to the Uniform Plumbing Code (UPC), including specific requirements for your business type.
  • Verify ADA/TAS Compliance: All new and remodeled public restrooms must strictly adhere to Americans with Disabilities Act (ADA) and Texas Accessibility Standards (TAS) for clearances, fixture heights, and hardware.
  • Plan for Permits & Occupancy: Secure all necessary permits from the City of Houston before work begins. Plan for inspections which are required to receive your Certificate of Occupancy.
  • Map Shutoffs & Isolation Valves: Identify main water and gas shutoff points. Plan for the installation of new isolation valves for different zones or tenant spaces to minimize disruption during future service.
  • Size Grease Interceptors & Backflow Preventers: Correctly size and specify grease traps or interceptors for food service establishments and ensure backflow prevention devices are installed where required to protect the municipal water supply.
  • Coordinate Venting & Roof Penetrations: Plan all drain, waste, and vent (DWV) stacks, ensuring proper roof penetrations and flashing to prevent leaks.
  • Assess Water Pressure & Quality: Test building water pressure. High pressure requires a commercial-grade pressure-reducing valve to protect fixtures. Consider water filtration for food service applications.
  • Gather Fixture Specs & Submittals: Collect manufacturer specification sheets for all fixtures and equipment to provide to your plumber for accurate rough-in.
  • Calculate Gas Line Capacity: Ensure existing gas lines can handle the load of new equipment (e.g., kitchen ranges, water heaters). Plan for a system pressure test as required by inspectors.
  • Coordinate with MEP & GC: Integrate the plumbing plan with mechanical, electrical, and architectural drawings to avoid conflicts during installation.


Plan Your Commercial Project with an Expert Partner.
Our team specializes in complex commercial plumbing for Houston businesses. We ensure your project is compliant, efficient, and built to last. Call us at 346-699-1005 to discuss your project.

Commercial Bathroom Remodeling Plumbing

Remodeling a commercial bathroom in a medical clinic, office building, or retail space involves more than just aesthetics. It requires a focus on durability, accessibility, and sanitation.

Multi-Stall Restroom Design

This involves careful layout of underground or in-wall piping to serve rows of toilets and sinks. We use carrier systems for wall-hung toilets to save space and improve cleanability.

Sensor-Operated Faucets and Flush Valves

Touchless fixtures are now the standard in commercial restrooms. They reduce the spread of germs, conserve water, and enhance user experience. We install and calibrate commercial-grade sensor-operated flushometers and faucets.

ADA & TAS Compliance

We are experts in ADA and TAS requirements, ensuring proper clearances for wheelchair access, correct grab bar placement, and installation of compliant fixtures like comfort-height toilets and accessible sinks.

Durability and Waterproofing

Commercial restrooms see heavy use. We use durable materials and implement robust waterproofing measures in shower areas and behind wet walls to prevent moisture damage and mold growth, which is critical in Houston’s humid climate.

Commercial Kitchen Plumbing Services

A restaurant or food service kitchen’s plumbing is its lifeline. It must handle high volumes of grease, water, and waste while meeting stringent health department codes.

Grease Waste Lines and Interceptors

The most critical component of a commercial kitchen. We design and install properly sized grease interceptors (traps) and ensure all grease waste lines have the correct slope and cleanouts to prevent blockages.

Floor Sinks and Trench Drains

Proper drainage is essential for a clean and safe kitchen floor. We install floor sinks for indirect waste from equipment and trench drains in dishwashing or high-spill areas.

High-Volume Dish Stations

This includes connecting commercial dishwashers, three-compartment sinks, and pre-rinse sprayers. We ensure the system can handle high temperatures and has adequate water pressure and drainage capacity.

Gas for Ranges, Fryers, and Ovens

Our licensed plumbers install and connect high-BTU gas appliances, ensuring all lines are correctly sized, regulators are properly installed, and the system passes a rigorous pressure test for safety.

Water Filtration for Prep Sinks and Ice Machines

We install commercial water filtration systems, including reverse osmosis (RO) units, to provide high-quality water for cooking, beverage stations, and ice machines, improving taste and protecting equipment.

Build a Kitchen That Performs Under Pressure. From grease traps to gas lines, we provide comprehensive plumbing solutions for Houston’s food service industry. Contact us today to book now.

Plumbing for Houston’s Diverse Building Types

  • High-Rise & Tilt-Wall Buildings: These structures require careful coordination for core drilling and managing plumbing stacks that serve multiple floors.
  • Older Strip Centers: Renovating older spaces often involves uncovering and replacing corroded cast iron drain lines or undersized water piping.
  • Night and Weekend Work: For tenant improvements in occupied buildings, we offer after-hours and weekend scheduling to minimize disruption to your business or other tenants.
  • Infection Control for Medical Facilities: When working in clinics or hospitals, we implement strict infection control risk assessment (ICRA) protocols to contain dust and debris and maintain a safe environment for patients and staff.

Frequently Asked Questions

How long does the permitting process take in Houston?

The City of Houston’s permitting timeline can vary. For straightforward projects, it may take a few weeks. For more complex jobs requiring detailed plan reviews, it can take longer. We manage this process to keep your project on schedule.

How do you minimize downtime for my business?

We do this through meticulous pre-planning, pre-fabricating components off-site, and offering phased or after-hours work schedules to keep your operations running smoothly.

What should I budget for a commercial plumbing remodel?

The cost varies greatly based on the scope, building type, and fixture grade. We provide a detailed, itemized proposal after a thorough site survey and plan review so you have a clear understanding of all costs.

Do you offer service plans after the project is complete?

Yes. We offer preventative maintenance plans for key systems like grease interceptors, backflow preventers, and water heaters to ensure your investment remains protected and functional for years to come.

Your commercial space is a significant asset. Ensure its plumbing system is designed and installed by experts who understand the unique demands of Houston’s commercial environment.

Call us at 346-699-1005 for a consultation, or contact us today to book now.