CUSTOM SHEET METAL SOLUTIONS

Complete Sheet Metal Fabrication & Field Services

From our fully integrated fabrication shop in Appleton, WI, Coenen Mechanical designs, fabricates, and installs custom sheet metal for industrial and commercial facilities across the country. Equipped with a high-definition plasma cutting system and precision forming tools, our fabrication team crafts ductwork, plenums, hoods, enclosures, and food-grade assemblies built to your exact specifications.

Like our piping division, our sheet metal division goes far beyond the shop floor. Our skilled union tradespeople bring the same craftsmanship to the field, handling on-site installations, rebuilds, and repairs for air systems, building ventilation, and process ventilation applications of every kind. Whatever your facility needs, our capabilities allow us to take your project from design to installation under one roof.

Coenen Mechanical is a sheet metal fabrication and commercial HVAC contractor in Appleton, WI, providing custom ductwork, hoods and collectors, building ventilation, and process ventilation systems for industrial and commercial facilities nationwide. Services include in-house fabrication, field installation, rebuilds, and repairs, backed by 24/7 emergency support.

In-House Sheet Metal Fabrication

Inside our 130,000 sq ft fabrication facility, raw material becomes precision-crafted sheet metal components. With multiple fabrication bays, bridge cranes with capacities up to 40 tons, in-house sandblasting and painting, and in-house design and 3D modeling, we deliver shop-fabricated solutions with complete quality control from start to finish.

Custom Metal We Fabricate:

Ductwork for Various Materials, Pressures & Industries
Plenums, Hoods, Cyclones, Scrubbers & Separators
Food-Grade Assemblies, Equipment & Systems
Structural Steel
Sheet Metal Plenums, Housings & Casings
Dust Capture & Material Handling Equipment
Coater & Process Dryer Equipment
Heat Recovery & Building Ventilation Equipment

Our capabilities include welding, fabricating, forming, rolling, and cutting materials up to 4” thick carbon steel, 2” thick stainless, and 4” thick aluminum — see our full equipment list for details.

Sheet Metal Field Services

Our sheet metal division doesn’t stop at fabrication. Just like our pipefitting crews, our field teams excel on-site — installing, rebuilding, and repairing
systems in operating facilities where precision, safety, and minimal downtime matter most. Installation crews are capable of installing everything we make, including custom fabrications.

Field Services Include:

Air Systems
Hoods & Collectors
False Ceilings & Enclosures
Coater & Process Dryers
Building Ventilation
Various Process Ventilation Applications
Ductwork for a Variety of Applications
Heat Recovery, Scrubbers & Separators
Installation, Rebuilds & Repairs

Sheet Metal Field Services

Our sheet metal division doesn’t stop at fabrication. Just like our pipefitting crews, our field teams excel on-site — installing, rebuilding, and repairing
systems in operating facilities where precision, safety, and minimal downtime matter most. Installation crews are capable of installing everything we make, including custom fabrications.

Field Services Include:

Air Systems
Hoods & Collectors
False Ceilings & Enclosures
Coater & Process Dryers
Building Ventilation
Various Process Ventilation Applications
Ductwork for a Variety of Applications
Heat Recovery, Scrubbers & Separators
Installation, Rebuilds & Repairs

Commercial HVAC Services

Comfortable, efficient, and code-compliant — our commercial HVAC team supports building ventilation and air system needs for commercial and industrial facilities. From custom ductwork fabrication and installation to heat recovery systems and process ventilation, we bring the same shop-to-field expertise that defines every Coenen Mechanical division.

Industries We Serve

Paper, Tissue & Board
Printing, Converting & Packaging
Power Plants & Foundries
Mills & Mines
Food & Beverage
Chemical Plants
Municipalities
Ethanol & Biofuels
Gas & Oil