Welded Grease Duct
Welded grease duct fabrication for commercial kitchen exhaust projects in Kennewick and the wider Tri-Cities region. Share your approved system details so Pro Duct can review materials, routing, connections and the required fabrication scope.

From Pro Duct’s supplied company photo collection.
Grease exhaust needs a dedicated approach to duct construction and project coordination. Pro Duct provides welded grease duct fabrication for commercial kitchens, working from the project team's specified materials, dimensions and assembly details. The route from hood to exhaust fan must be reviewed together with access, supports, clearances and any enclosure requirements. Send your plans before fabrication begins so we can identify the sections and fittings needed, understand how they join, and establish our role within the complete kitchen exhaust project.
Fabrication options
- Welded grease duct sections
- Custom exhaust elbows
- Grease duct transitions
- Hood connection pieces
- Fan connection pieces
- Fabricated sections to project drawings
Start with the exhaust design
Grease-laden kitchen exhaust creates construction and maintenance requirements that differ from general HVAC air distribution. The project documents should identify the material, thickness, joint details and route. Include hood and fan connection information with the duct drawings. This provides the basis for reviewing fabricated sections and avoids treating grease duct as an interchangeable version of ordinary supply or return ductwork.
Review the route and access points
A useful drawing shows more than the overall duct size. Mark changes in direction, penetrations, access provisions, supports and the available space around the route. The project team must coordinate these details with cleaning access, clearances and any enclosure design. We use the specified arrangement to review the lengths, fittings and connecting sections included in the fabrication package.
Define responsibilities before fabrication
Kitchen exhaust involves several connected scopes. Confirm who supplies the hood and fan, who installs each section, and who handles fire protection, electrical work, inspection and testing. Pro Duct can discuss the welded sheet metal work and installation needs for your project. Final material choices and assembly details should follow the approved design and the requirements applicable to the site.
What to send us
- Approved exhaust drawings and duct route
- Material, thickness and specified joint details
- Hood and fan connection dimensions
- Access, supports, penetrations and enclosure requirements
- Fabrication quantities, installation scope and schedule
Common questions
Do you fabricate welded grease duct?
Yes. Provide the project drawings, material requirements and connection details so we can review the fabrication package and quote the defined scope.
Can standard HVAC duct replace grease duct?
Do not assume standard HVAC ductwork is suitable. Grease exhaust has dedicated construction and system requirements that must be addressed in the kitchen exhaust design.
Does ordering grease duct include the complete kitchen system?
The quote will define the included work. Hood supply, exhaust fans, replacement air, fire suppression, electrical work, installation and testing should each have a clearly assigned scope.
