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Green Building Practices

Black Cat Plumbing is a familiar name in the local green building community, we have worked on a multitude of LEED certified and sustainable building projects, installed plenty of recycled fixtures, and worked with the City of Portland on pilot fixture programs.

As a leader in Green Plumbing Technology we enjoy the struggle between "the old way of doing things" and the modern technology of the trade.

We strive to remain teachable as technology changes.

  • Energy Trust of Oregon Trade Ally
  • Tankless Certified Installers
  • Certified Solar Technicians

Waterless Fixtures

On your next visit to the Eco-Trust building in the Pearl, check out the waterless urinals we installed in the second and third floor men's room. Also we installed the first indoor commercial composing toilet at the offices of the Multnomah County Division of Soil & Water Conservation on N. Williams.

Recycled Fixtures

Check out the remodeled offices at the Rebuilding Center on N Mississippi Ave. We plumbed for and installed all those perfectly used fixtures. Also, most of the fixtures we remove are donated to the Rebuilding Center.

Solar Thermal

Black Cat Plumbing is an ETO Trade Ally and a premier solar installer. Our focus is on the installation of your system and can refer you to one of our associates to walk you through the incentive qualifying process.

Heat Pump Water Heating

A heat pump designed for potable use, available for residential and large commercial applications, an alternative to solar that rivals the incentives. Perfect if you have too much tree cover to qualify for solar.


We are certified by all the top tankless water heater manufacturers and can help you qualify for rebates. Plumbing Companies are the only contractors allowed to do the full installation.

High Efficiency Water Heaters

Hard to believe these are still a specialty item. We can help guide you to the best available energy saving option.


Green building

The Rex Project

Green building

The Rebuilding Center

Green building

The Rainbarrel Man