featured project

Kihei High School

Kihei High School, now officially named Kūlanihākoʻi High School, was a long awaited high school project for South Maui.
at Maui Plumbing we are


Phase 2 which was completed in 2023, entailed the construction of an administration building, two classroom buildings, a library and cafeteria building and an athletics building.
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Get a high level view some of our work on KHS
state of the art


The two classroom buildings are identical two-story CMU structures with girls’ and boys bathrooms on each level. Each classroom building holds two modern science labs plumbed in with LP gas outlets for each of the 13 lab sinks. The DWV system for the science labs was done in Rionfuse PE acid waste piping which discharges into an acid neutralization tank.

Athletics Building

The athletics building was plumbed with a total of 53 showers for the boy’s and girl’s locker rooms. The high hot water demand was met with a 2750 gallon hot water heating plant powered by two Nyle C250 heat pump water heaters.

Cafeteria Building

The cafeteria building has a 3000 sq/ft commercial kitchen plumbed with over 50 fixtures and twin 120 gallon commercial electric water heaters. The high occupancy of the building required large boy’s and girl’s restrooms with strict tolerances on fixture locations.

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fast & efficient


The majority of the DWV and copper water piping systems for the projects were pre-fabricated offsite. Our fab shop piping and hangers rods for the Cast Iron DWV & copper water piping to length utilizing a Tigerstop CNC saw system. Utilizing a CNC saw cut material waste and increased our material efficiency to over 98%. After cutting, system components were packaged and palletized by building and distributed to the site. Each package contained the necessary fittings, pipe and hangers and shop drawings for assembly onsite. Prefabricating components offsite allowed for smoother and faster installation onsite.

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    Project Details

    General Contractor: Nordic PCL


    Cast Iron DWV & Copper Potable Water Electro-Fused PE Acid Waste Piping

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    BIM Modeling

    Systems were modeled to an LOD 500 and coordinated in Navisworks.

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    Piping was cut with a CNC saw system and brought to site as pre-fabricated "kits of parts".

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    Robotic Total Station Layout

    Trimble RTS systems were used to place piping & hangers to exacting standards.

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