On the Mark Mechanical is your plumbing professional. Specializing in Poly B™ Removal. Trust us to bring comfort and peace of mind to your home. Finding an experienced and dependable plumbing contractor shouldn’t be stressful. On the Mark Mechanical has been serving Penticton, Summerland, Naramata, Okanagan Falls, and Peachland with complete plumbing solutions and trusted customer service that makes you feel heard and understood. We are licensed and insured to efficiently fulfill your plumbing needs for all kinds of projects, regardless of their size or complexity.