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Furnace Tune up for $225

Get your furnace checked by Green Box Mechanical. We do a 10 point inspection on your furnace

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Knob And Tube Wiring: What You Need To Know

If you’re a Portland homeowner whose house was built before the 1950s, there’s a good chance your home’s electrical wiring was done in the knob and tube style. We’re here to tell you what it is, what you should know about it, and, if necess

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Are plumbing issues haunting your house?

Is your toilet full of Boo’s? Could be a case of phantom flushing. There may be a leak between the toilet tank and the bowl. The crash and fast flow of water when you flush a pressure-assisted toilet is normal. It’s not a ghost...

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Does our thermostat need to be replaced?

With colder weather hitting Portland, we begin turning to our heating systems for comfort. You may be asking, “How do I know if my thermostat is working properly?” While thermostats may vary, many units show signs of decline after ten years

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Craig Anderson Plumbing Purchase

After much thought and careful consideration, I’ve decided to announce my retirement. I sincerely appreciate the loyalty, friendship and respect you have given my staff and I over the last 28 years...

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Learn about us

Welcome to Green Box Mechanical

A completely new kind of contracting company —created in response to the demand in Portland for local, single-source, and direct-to-consumer services focused on plumbing, HVAC and electrical services.

People that we trust

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Rotary Camas - Green Box Mechanical MBA of Portland - Green Box Mechanical Support First Responders - Green Box Mechanical
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Our Trades


Our Technicians

Whether it’s a plumbing problem, electrical outlet on the fritz, or an HVAC system in dire need of maintenance—finding the right contractors can be stressful. Green Box Mechanical hires only experienced technicians that you can trust to be detailed and thorough with your project.

Environmentally-friendly products.
Working with only the best technicians.

Meet the Techs
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