New England's Premier Mechanical and Process Piping Contractor

We provide specialized construction, maintenance, critical equipment handling, fabrication, and high purity services to leading clients.

Our History Careers

Trusted for Quality & Safety Since 1934

With more than 20,000 FDA‑validated installations, DECCO helps deliver life‑saving medicines, therapies, and treatments worldwide. We offer the following services:

Construction

Offering preconstruction, estimating, and design‑build services, along with complex mechanical and process piping installations.

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Custom Fabrication

DECCOFab, our full-service design and fabrication group, delivers custom-designed utility panels, wall panels, vessels, pipe spools, custom carts, and frame fabrications to meet the unique needs of clients worldwide.

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Service & Maintenance

DECCOServ provides owner-direct mechanical and process services, including preventative maintenance, shutdown support, Customer Alliance Programs, and specialized plumbing solutions.

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High Purity Services

We offer in-house clean for oxygen services, passivation, and full mechanical polishing & electropolishing.

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Clean Utilities Service Program

CUSP provides life sciences and research facilities with comprehensive equipment installation, inspection, certification, and preventative maintenance services.

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Critical Equipment Handling

Our professional rigging services encompass the secure removal, modification, and re-installation of process equipment by qualified technicians with cleanroom and GMP expertise.

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3D Scanning and Virtual Design

By capturing accurate data, we provide comprehensive services such as prefabrication and clash detection, ensuring a perfect fit for your facility.

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Lifelong Learning Opportunities for a Career in Construction

A DECCO Legend’s Journey: Bob Belanger

As he enters retirement, Bob Belanger looks back on his 36‑year career at DECCO, reflecting on his path from the trades to leadership and the DECCO culture that shaped his experience along the way.