Corrugated Stainless Steel Tubing (CSST)

Some homes or businesses have internal natural gas piping called Corrugated Stainless Steel Tubing (CSST). CSST is a yellow or black coated, flexible stainless steel pipe that delivers natural gas inside your home to your appliances. CSST is usually routed beneath, through and alongside floor joists in your basement, inside interior wall cavities and on top of ceiling joists in attic spaces. 

Like all gas piping systems, CSST must be properly installed. Correct installation of CSST includes being bonded and grounded which can prevent damage from a lightning strike or potential electrical shock. All manufacturer’s instructions have required direct-bonding and grounding of CSST in new installations since 2006.   

Texas Gas Service does not maintain the piping inside your home or business. We suggest that if you have any questions regarding your internal gas piping or if you would like to verify if it was properly installed, contact a qualified service technician.  

Additionally, if you have any construction work performed near the location of CSST, including roof work, we suggest you have the contractor verify that they have not damaged any CSST which could lead to a gas leak.

To report a natural gas odor or emergency, leave the area immediately and then call 911 and 800-959-5325.