Curb traps are essential for preventing sewer gases from entering your property, and Mark 4 Plumbing is your go-to expert for installation and repair in Philadelphia. We are well skilled in city plumbing codes and have over 45 years of hands-on experience working with curb traps and cleanouts. Our team ensures proper sizing, material selection, and placement to maintain safe, sanitary conditions in your sewer system. Whether replacing an outdated trap or adding one to a new build, we deliver fast, efficient, and reliable service with your safety and city compliance in mind.