Case study / Siding and facade contractor
More estimating capacity with tighter control of active-project changes.
ModelMason supported estimating and project management for a contractor handling large siding and facade packages, helping more bids move while addenda, RFIs, submittals, and change events stayed organized.
The engagement
Bid opportunities and project changes were competing for the same attention.
The contractor needed to price more work without losing control of active-project documentation. Addenda and RFI responses could introduce scope changes that required quantity updates, material decisions, and timely change-order review.
The business challenge
Increase bid throughput without letting drawing changes become untracked cost.
Accurate quantities mattered at bid time and again when revised drawings or responses changed the work. The team needed consistent review across estimating, documentation, and commercial follow-up.
What ModelMason owned
- Prepared detailed estimates for three to four opportunities each week
- Created and maintained project submittals
- Prepared RFIs and tracked responses
- Reviewed drawing addenda for scope and quantity changes
- Reviewed RFI responses for design changes and cost impact
- Prepared change orders when revised information affected scope
The result
Estimating output doubled while project changes stayed commercially actionable.
Estimating increased from one or two projects per week to three or four. More precise quantity tracking helped reduce excess material ordering and waste. Reviewing addenda and RFI responses within the project workflow also helped identify design changes that could support a change order instead of becoming an untracked cost to the subcontractor.
See the working record
Review a representative exterior-envelope takeoff.
The sample shows measured quantities, waste, bid quantities, drawing references, assumptions, and open scope questions.
Open sample PDF
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