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11 Years
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Emergency
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Expert Plumbing Services in Honolulu
535 Plumbing, founded in 2015 by Shane Mizusawa, is a family-owned and operated business serving Honolulu and the island of Oahu. With over 15 years of plumbing experience and a team of certified professionals, we specialize in residential and commercial plumbing services, including trenchless pipe repair, kitchen and bath remodeling, backflow testing, and emergency plumbing. Our commitment to excellence is rooted in our core values of communication, safety, and customer-centric solutions. We pride ourselves on delivering high-quality workmanship with no hidden fees, ensuring every project is completed efficiently and to the highest standards. As a certified NuFlow Contractor, we utilize cutting-edge technology to provide non-invasive pipe relining solutions that save time, money, and property integrity.

Our dedication to going 'Beyond the Call' has earned us recognition as the Best Plumbers on Oahu and first-place winner in the 2025 KITV4 Best of Hawaii for the third consecutive year. We serve diverse locations across Oahu, including Honolulu, Kailua, Pearl City, and Waikiki, offering 24/7 emergency support during business hours. With a focus on trustworthiness and community, we treat every client like family, ensuring their plumbing needs are met with urgency, compassion, and expertise.
Services
Trenchless Pipe Relining Drain Cleaning Water Heater Repair Kitchen Remodeling Backflow Testing Pipe Descaling Camera Inspection Hydro Jetting New Construction Plumbing Leak Detection
Details
  • Year established: 2015
Highlights and features
  • Family-owned business with 15+ years of plumbing expertise
  • Certified NuFlow Contractor for trenchless pipe relining
  • 24/7 emergency plumbing services during business hours
  • Winner of 2025 KITV4 Best of Hawaii for plumbing services
  • Comprehensive solutions for residential and commercial needs
Associations and certifications
  • NuFlow Contractor
  • Hawaii Contractor's License Board
What people say
Exceeded expectations Highly recommend Professional and courteous Quick response time Quality workmanship
Services
Trenchless Pipe Relining
Trenchless pipe relining restores damaged pipes without excavation. This method uses cured-in-place epoxy liners to repair cracks, leaks, and corrosion. Benefits include minimal property disruption, cost savings, and extended pipe lifespan. NuFlow technology ensures durable, seamless repairs for residential and commercial properties across Oahu.
Kitchen & Bath Remodeling
Comprehensive remodeling services for kitchens and bathrooms. Our team handles plumbing upgrades, fixture installation, and full renovations. With 10+ years of experience, we deliver custom designs that enhance functionality and aesthetics while maintaining strict adherence to timelines and budgets for Honolulu homeowners.
Backflow Testing
Professional backflow testing and installation services ensure safe water supply systems. Certified technicians install and test pressure vacuum breakers, double check valves, and reduced pressure zone devices. Compliance with Hawaii state regulations protects against water contamination in residential and commercial properties.
Pipe Descaling
Pipe descaling removes mineral buildup from water lines using specialized equipment. This service restores water flow, prevents clogs, and extends pipe longevity. We address calcium deposits in copper, cast iron, and concrete pipes, combining camera inspections with hydro jetting for optimal results in Oahu homes and businesses.
Hydro Jetting
High-pressure hydro jetting clears stubborn drain clogs and buildup. This method effectively removes grease, scale, and root intrusions from sewer lines. Ideal for both emergency clearing and preventive maintenance, our services cover residential, commercial, and industrial plumbing systems across the island.
People
Shane Mizusawa
Owner
Shane Mizusawa, owner of 535 Plumbing, brings lifelong plumbing industry experience from his family's legacy. With 15+ years of expertise, he leads Honolulu's top-rated plumbing team, combining technical skill with personalized service to deliver exceptional results for residential and commercial clients.
Keri Leeson
Chief Operating Officer
Keri Leeson oversees daily operations at 535 Plumbing, ensuring efficient service delivery and customer satisfaction. With extensive experience in plumbing management, she plays a key role in maintaining the company's high standards for quality and reliability across Oahu.
Pam Chun
Office Manager
Pam Chun manages administrative operations at 535 Plumbing, coordinating scheduling and client communications. Her organizational expertise ensures smooth workflow and timely service delivery for the company's growing residential and commercial customer base in Honolulu.
Jr Kesner
Service Manager
Jr Kesner supervises field operations and technician teams at 535 Plumbing. With technical expertise in plumbing systems, he ensures proper execution of residential and commercial projects while maintaining the company's commitment to quality and customer satisfaction.
Desmond Johnson
Construction & Renovation Manager
Desmond Johnson leads construction and renovation projects at 535 Plumbing. His expertise in plumbing installations and remodeling ensures seamless execution of new construction and upgrade projects across Oahu's residential and commercial sectors.
Questions
What plumbing services do you offer in Honolulu?
We provide comprehensive plumbing services including trenchless pipe repair, water heater installation, drain cleaning, backflow testing, kitchen/bath remodeling, and emergency plumbing for residential and commercial clients across Oahu.
Do you offer 24/7 emergency plumbing services?
We provide emergency plumbing support during business hours and accommodate urgent situations outside normal hours. Call (808) 300-0535 for immediate assistance with critical plumbing issues.
Which areas of Oahu do you service?
We serve all of Oahu including Honolulu, Aiea, Kailua, Kaneohe, Pearl City, Hawaii Kai, Kahala, Lanikai, Manoa, and Waikiki. Contact us for service requests in other locations.
What is the Aloha Membership Plan?
Our Aloha Membership Plan offers preventive maintenance benefits including annual plumbing inspections, discounts on repairs, and priority scheduling to help Oahu residents maintain optimal plumbing system performance.
How can I schedule a plumbing service appointment?
Schedule through our website, call (808) 300-0535 directly, or complete our online contact form. We provide prompt scheduling with personalized quotes and follow-up communication for all service requests.