Time and budget overruns are the norm—not the exception—on large-scale mechanical projects. When project schedules are tight, a single delay in ductwork delivery can derail an entire build. That’s why more general contractors and facility managers are searching for smarter, more reliable solutions. Custom ductwork fabrication done in-house by your mechanical contractor has emerged as a game-changer. At Robertson Morrison, our in-house fabrication capabilities set us apart from typical Michigan mechanical contractors, giving clients tighter control over time, cost, and quality.
What Is Custom Ductwork Fabrication?
Custom ductwork fabrication is the process of designing and manufacturing HVAC duct systems to the exact specifications of a building project. Precision isn’t just a “nice to have,” it’s essential for airflow, energy efficiency, and code compliance.
At Robertson Morrison, our skilled sheet metal team manages the entire fabrication process in our dedicated shop. From the first CAD drawing to the final installation in the field, every step is performed in-house. This seamless workflow ensures every piece fits and functions as intended.
Learn more about our sheet metal services.
Challenges with Outsourced Fabrication
Many mechanical contractors still outsource their ductwork fabrication, believing it’s easier or more cost-effective. In reality, third-party fabrication often leads to:
- Shipment delays due to backlogs or transit issues.
- Miscommunication between shop, contractor, and jobsite.
- Inconsistent quality or mismatched specs.
- Added cost from markups, rush orders, or rework.
For large-scale projects, these pitfalls can quickly multiply, putting budgets and deadlines at risk.
The Robertson Morrison In-House Fabrication Process
Our in-house sheet metal fabrication process eliminates the dependency on external partners:
- Shop Drawings: Our team creates precise designs and reviews them with your project team.
- Fabrication: Ductwork is manufactured in our state-of-the-art sheet metal shop in Michigan.
- Quality Assurance: Every piece is inspected for accuracy and durability.
- Delivery & Installation: Because fabrication and field teams work side by side, installation is smoother, and design changes are easier to handle.
The result? Fewer surprises, higher accountability, and superior results—delivered by one integrated team.
Real Time Savings
When you don’t have to wait for outside suppliers, you control the schedule. Our clients see:
- Faster turnarounds—no waiting on external production or shipping.
- Agility for last-minute changes without adding weeks to the timeline.
- Reduced schedule risk thanks to direct coordination between fabrication and installation teams.
This is especially valuable on fast-track or design-build projects.
Real Cost Efficiencies
In-house fabrication isn’t just about speed—it delivers real, measurable cost savings:
- No third-party markup—costs are transparent from bid through final install.
- Less material waste and fewer installation mistakes due to better coordination.
- Streamlined labor—no duplication between fabricator and contractor.
- Predictable pricing means fewer surprises for your budget and stakeholders.
Why GCs and Facilities Teams Prefer In-House Fabrication
For general contractors and facilities managers, in-house fabrication means:
- Less risk: Fewer moving parts, fewer missed deadlines.
- More reliability: One team, one standard, and direct communication.
- Easier scheduling: All ductwork is ready exactly when it’s needed.
- Better for compliance-heavy projects: Precision fabrication helps meet high-spec requirements—ideal for schools, hospitals, or complex commercial builds.
Ready for Smarter Custom Ductwork Fabrication?
If you’re a general contractor, facilities manager, or project owner in Michigan, don’t let third-party ductwork hold up your next project.
Add us to your bid list today
With custom ductwork fabrication and integrated in-house sheet metal fabrication, Robertson Morrison delivers results that save you time and money. Discover why we’re the preferred mechanical contractors in Michigan.
FAQs
What is custom ductwork fabrication?
It’s the process of designing and manufacturing HVAC duct systems to fit the unique needs of your building, maximizing efficiency and performance.
How does in-house fabrication save money?
By cutting out third-party markups, reducing waste, and streamlining labor, in-house fabrication delivers reliable cost savings.
Is this service available for commercial, institutional, and industrial projects?
Yes. Robertson Morrison serves all major sectors in Michigan—see our project experience.