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Process & Industrial

Day & Zimmermann brings big ideas to life by providing innovative engineering, construction and maintenance solutions to process and industrial customers.

What We Do

Capital Effective Project Delivery.

Capfx® is our proprietary process for delivering capital effectiveness, offering the opportunity for predictable cost savings compared to a conventional approach to project delivery.

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The Waz Principle.

P&I Assembly Process


Flexible execution strategies include site-based teams, in-plant staff augmentation and seconded personnel, and office-based project execution.

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Projects & Construction

Our teams are familiar with, and have worked on, virtually every primary and secondary plant system in both outage and non-outage environments, routinely executing critical and near-critical path work scopes.

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Maintenance & Modifications

Maintenance & Modifications

Our Total Accountability Model provides a single point of contact driving accountability across safety, human performance, cost, schedule, quality, and resource supply.

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From scaffolding design to decontamination and storage, our planning and implementation process is designed to reduce or consolidate scaffold use.

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Markets We Serve

Chemical & Fibers

Specialty chemicals, petrochemicals, bulk chemicals, fine chemicals, fibers, nylons, and films.

Petroleum Refining

Refined products, such as gasoline, heating oil, jet fuel, diesel, petroleum by-products, and liquefied petroleum gases.

Consumer Products

Intermediate chemicals; Production, storage, packaging, and distribution of perishable and non-perishable food items, alcoholic, and non-alcoholic beverages.