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Over 25 Years of Experience

Kamaʻāina-Owned Business

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New Construction Plumbing
Honolulu County, HI

Fully Licensed and Insured

Over 25 Years of Experience

Kamaʻāina-Owned Business

Request Lorem Epsom

Hero Request Form

Get Your New Construction Plumbing Installed Right the First Time
Building a new home or commercial property requires a plumbing system that's installed correctly from the ground up. Johnson's Plumbing provides complete new construction plumbing throughout Honolulu County. Our services include:
  • Water supply line installation
  • Drain and sewer system setup
  • Fixture placement and connections
  • Gas line installation
  • Water heater integration
  • Rough-in plumbing for bathrooms and kitchens

With over 25 years of experience, we make sure your plumbing infrastructure is built to last. Reach out to us to discuss your construction project.
Your New Build Deserves Quality Plumbing Installation

New construction plumbing sets the foundation for decades of reliable water and waste management in your building. Proper installation prevents costly repairs down the line. Quality new construction plumbing provides:

  • Code-compliant systems that pass inspections
  • Efficient water distribution throughout the structure
  • Properly sized pipes for ideal pressure
  • Strategic fixture placement for functionality
  • Durable materials built for local conditions


Johnson's Plumbing brings careful attention to every phase of your construction project. We understand local building requirements and deliver installations that exceed standards.

Why Choose Johnson's Plumbing

When you select Johnson's Plumbing for your new construction project, you partner with a third-generation, family-owned business that has served the community since 2011. We complete the job and make sure every installation addresses the specific requirements of your building. Our benefits include:

  • More than two decades of specialized plumbing knowledge
  • Thorough workmanship on every installation
  • Local ownership that understands Hawaii's unique needs
  • Commitment to resolving issues completely
  • Dependable service from a trusted kamaʻāina business


We take pride in our detailed approach to new construction plumbing, making sure your system functions flawlessly from day one. Our experience means fewer callbacks and greater peace of mind.

Did You Hear About The New Hawaii Law?

Hawaii property owners should be aware of important state requirements regarding existing cesspools. Under Hawaii Act 125, all cesspools must be upgraded or converted to an approved wastewater system, such as a septic system, aerobic treatment unit, or municipal sewer connection, no later than January 1, 2050. In certain situations, including major property renovations or homes located in environmentally sensitive areas, upgrades may be required sooner. These regulations were established to help protect Hawaii's drinking water, groundwater aquifers, coastal ecosystems, and public health from wastewater contamination.


At Johnson's Plumbing Inc., we help homeowners and property owners throughout Oʻahu navigate the cesspool conversion process with confidence. Our experienced team can assess your property's existing wastewater system, explain available conversion options, and provide professional plumbing services to support your upgrade project. Whether you're planning ahead for compliance or have received notice that your property requires an expedited conversion, we're here to provide reliable guidance and quality workmanship every step of the way.


Contact Johnson's Plumbing Inc. today to learn more about your cesspool conversion options and ensure your property is prepared for Hawaii's future wastewater requirements.

Did You Hear About The New Hawaii Law?

Hawaii property owners should be aware of important state requirements regarding existing cesspools. Under Hawaii Act 125, all cesspools must be upgraded or converted to an approved wastewater system, such as a septic system, aerobic treatment unit, or municipal sewer connection, no later than January 1, 2050. In certain situations, including major property renovations or homes located in environmentally sensitive areas, upgrades may be required sooner. These regulations were established to help protect Hawaii's drinking water, groundwater aquifers, coastal ecosystems, and public health from wastewater contamination.


At Johnson's Plumbing Inc., we help homeowners and property owners throughout Oʻahu navigate the cesspool conversion process with confidence. Our experienced team can assess your property's existing wastewater system, explain available conversion options, and provide professional plumbing services to support your upgrade project. Whether you're planning ahead for compliance or have received notice that your property requires an expedited conversion, we're here to provide reliable guidance and quality workmanship every step of the way.


Contact Johnson's Plumbing Inc. today to learn more about your cesspool conversion options and ensure your property is prepared for Hawaii's future wastewater requirements.

Contact Us

Ready to install reliable plumbing systems in your new construction project? Johnson's Plumbing is here to provide the thorough installation your building deserves. Our team works closely with contractors and builders throughout Honolulu County to deliver plumbing infrastructure that stands the test of time.


Contact us today to schedule a consultation for your new construction plumbing needs.

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