Plumbing Company Serving Greater Seattle

Mega Mushroom Mechanical
Longtime best friends Corrigan Miller and Max Lenny founded Mega Mushroom in early 2024. The company provides residential and commercial plumbing services in the Puget Sound area.

They have a team of licensed, rigorously screened, and trained technicians that are highly experienced at pre-empting, diagnosing, and resolving all types of plumbing issues.

They’re also in support of strong labor practices, empowering their employees and subcontractors to make the industry safer and smarter.
Company Trainings and Certifications
Certified In:
Certified Commercial Journeyman Plumber and Contractor
Certified Backflow Technician
Certified Rainwise Contractor
Certified Residential Journeyman Plumber and Contractor
Certified on Taco Boiler Systems
Certified Seattle Natural Gas Contractors
Trained In:
Sheetrock Repair
Green Stormwater Infrastructure
Heavy Equipment Operation
Excavation
Hazardous and Historic Work Sites

Key Clients

Habitat for Humanity, Pierce County:We work with them to build affordable housing.

Seattle Public Utilities
King County Environmental Health:We help them improve infrastructure that keeps the Puget Sound clean.

Old Rainier Brewery:We’ve worked with them to remodel and upgrade their aging, historic structure to create a haven for artists, musicians and small businesses.

Our Values

As South Seattle locals, we understand how solid construction and proper plumbing systems can help fix our housing shortage, while cleaning our polluted waters to make homes more functional in a changing climate. Since the beginning, we are uncompromising on our values:

Quality WorkThat promotes the health of our environment.

Equitable Labor PracticesThat support a living wage and a quality of life for all involved.

Honest PricingWhile being mindful of the unique needs of our community. One way we do that is by making clients aware of available grants and rebates.

Trey

aka The Stallion

Residential Plumber
Born and raised in Tacoma WA. Trey was taught the way of the water supply at Sampson and Sons plumbing before coming over to Mega Mushroom as an apprentice. Since he came over he has worked tirelessly to expand his knowledge on Gas, Stormwater, and Drain Waste and Vent. Treyvon was the first inductee into Mega Mushrooms Hell Divers Corp, an exclusive group for those who enter the crawl space no matter the condition.

Liz

aka La Mula

Apprentice
Liz hails from rural WA and is the newest member of Mega Mushroom. She quickly made herself known as a Jill of all trades, unsurprising for someone with a background in food service and mushroom farming. While learning the ins and outs of plumbing she has proven to be a star pupil, and will soon have many exploits we will brag about to our adoring fans.

Jessica

aka Goose

Office Admin
Jessica has come to us from the far East of Akron OH. Jess uses her background in architecture and leadership to help us stay on top of organization, customer and subcontractor relations, and talking to the dreaded building department.  When she has downtime around the shop, she designs and builds furniture for high end clients. She is the second Sensei and uses her background in carpentry to run drywall, cabinet and tile training in the home service dojo.

Corrigan

aka Gator

Operations Manager
Corrigan lives, and bleeds South Seattle. He proudly serviced our nation's fiercest equipment while working as a technician in the Airforce and then  returned home to study the noble art of plumbing. His dedication to creating something better in a sometimes toxic industry lead him to start Mega Mushroom where he is Sensei to his loyal pupils. The s**t corrigan has seen you couldnt even believe. Crawling through crawl spaces littered with bodies (of mice), historic basements with spiders the size of bats, he has repaired active sewer leaks, and although he doesn't always get away clean, he always gets the job done.

Max

aka Poindexter

General Manager
Max is a White Center boy through and through. He studied many small owner operated businesses while living in Southeast Alaska. Everything from Ice climbing and sea kayaking business, to commercial fishing and mining operations. That time taught him his tireless work ethic and appreciation for the Do-ers. He spent years working in the field with Corrigan to understand the industry and what we ask of our technicians then began to focus on setting up the home base  located in the Old Rainier Brewery. Max is the problem solver, whether it takes might or mentality he clears the path to a solution.

Get a Handle on Your Plumbing Before It Handles You

No one can anticipate a plumbing problem like we can. Contact us to schedule your preventative checkup today.

A drawing of a cartoon mushroom holding a wrench

Thank you

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