Manning Design+Construction is a leading Portland, Oregon based green roofing and seismic reinforcement contractor. We specialize in building and maintaining green roofs (ecoroofs) and other rooftop construction - including rooftop patios, rooftop gardens, rooftop decks and rooftop solar.  We perform seismic upgrades, foundation repair/replacement and structural reinforcement of masonry. MD+C also offers storm-water facility solutions.

With over 40 years of commercial and residential contracting, consulting and construction experience, we serve the greater Portland, Oregon metro area including all areas of Multnomah, Washington and Clackamas counties and beyond. From design and engineering, to permitting, project management and construction, we can manage residential, multi-family and commercial contracting projects at every scale.

Our Ecoroofs Oregon division offers year round maintenance of extensive and intensive green roof installations for a variety of multi-family residential buildings, commercial buildings, institutions and residences throughout Portland, Oregon.

We focus on bringing new life to existing structures with our extensive experience in all phases of the design-build-maintenance process. Our team performs as much of the project as possible to control quality and budget. If you have a green roof (ecoroof), rooftop development or seismic reinforcement construction project in the Portland metro area, contact us to discover how we can help you save time and money.