- HEP Plumbing
- Code-compliant Installations

Code-compliant Installations
Code-compliant Installations | Commercial Plumbing | Plumbing | Knoxville
From bustling downtown eateries to expanding industrial parks, Knoxville businesses count on HEP for code-compliant installations that keep water flowing and operations humming. Our licensed team understands the nuances of local ordinances, ADA requirements, and backflow regulations, delivering precise workmanship that passes inspection the first time and minimizes costly downtime.
Whether you’re upgrading restrooms, fitting out a new build, or retrofitting specialty equipment, our commercial plumbing expertise covers everything from high-efficiency fixtures to complex gas and water lines. We coordinate seamlessly with general contractors and project managers, provide clear timelines and transparent pricing, and stand behind every installation with responsive 24/7 support—so you can focus on running your business, not worrying about pipes.
FAQs
What plumbing codes govern commercial installations in Knoxville?
Commercial plumbing work in Knoxville must comply with the 2018 International Plumbing Code (IPC) as adopted by the State of Tennessee, the 2018 International Fuel Gas Code (IFGC) for gas piping, and any additional amendments issued by the City of Knoxvilles Building and Safety Department. Our team stays up-to-date on local code revisions and manufacturers instructions to ensure every installation passes plan review and field inspection the first time.
Do I need a permit for commercial plumbing work?
Yes. Any new installation, relocation, or major alteration of water, drain, waste, vent, or gas piping in a commercial property requires a plumbing permit from the City of Knoxville. We handle the permitting process for youincluding plan submittal, fee payment, and coordination with inspectorsso your project stays on schedule and remains fully compliant.
How do you ensure ADA compliance for restrooms and fixtures?
We use the 2010 ADA Standards for Accessible Design along with Tennessees adopted accessibility provisions to verify fixture clearances, mounting heights, turning radii, and grab-bar placement. Before rough-in, our project manager reviews the architectural drawings and cross-checks each dimension to prevent costly rework. Final trim is laser-measured to guarantee the 17–19 in. toilet height, 34 in. lavatory rim, and required knee clearance are achieved.
What backflow prevention requirements apply to Knoxville businesses?
The IPC and Knoxvilles municipal code require approved backflow devices on all connections where contaminants could enter the potable systemfor example, irrigation, chemical dispensers, boilers, and commercial kitchen equipment. Devices must be tested annually by a state-certified backflow tester. We size, install, and register RPZs, DCVAs, or PVBs as specified, and we can schedule and file the yearly test reports with the city on your behalf.
Can you install high-efficiency water heaters and still meet code?
Absolutely. We routinely specify high-efficiency condensing water heaters, heat-pump water heaters, and tankless units that exceed ASHRAE 90.1 energy requirements while meeting IPC sizing tables. Our designers perform demand and recovery calculations, verify proper flue materials, and ensure combustion air, condensate neutralization, and temperature-pressure relief valves are installed per manufacturer instructions and code articles.
How soon will my plumbing rough-in be inspected and approved?
After we complete the rough-in, we schedule an inspection with Knoxville Building and Safety, typically available within 24-48 hours. We pressure-test water and DWV systems (5 ft. head of water or 50-psi air, depending on code section) before the inspector arrives. Because our technicians double-check code clearances and labeling, most of our projects pass on the first visit, keeping your construction timeline on track.