Launch list open · checkout pending approval
Construction Estimating & Bid Control System PRO
Connect scope, direct cost, pricing, subcontractor comparison, risk review, and proposal readiness.
View systemPractical business operating systems
Serious systems for the decisions that run the work.
One-time Excel workbook systems for small teams that need clearer cost, margin, workload, and risk decisions—without subscriptions or hidden calculation logic.
- Format
- Excel-first workbooks
- Ownership
- One-time purchase
- Featured
- Construction · $59
Construction Estimating & Bid Control System PRO$59
Featured system · Construction Operations
Build the estimate. Understand the margin. Know what needs attention before you send the bid.
A connected Excel-based estimating system for contractors who need a clearer path from scope and direct cost to selling price, subcontractor comparison, risk review, and a client proposal.
- Estimate, pricing, margin, and risk in one project workbook
- Quoted and normalized subcontractor amounts side by side
- Completed fictional example and guided product demonstration
View system
One-time price · $59 · launch list open
Product portfolio
Four focused systems. Organized around the work.
Each product addresses a defined operating decision. Construction has the deepest current direct product path; the other systems stay within verified release facts and proof.
Available by request · direct checkout inactive
Change Order Tracker & Aging Dashboard
Review open quoted revenue, expected margin, approvals, billing exposure, aging, ownership, and next actions.
View product
Available by request · direct checkout inactive
Project Management Control Center PRO
Bring active projects, tasks, budgets, workload, risk, milestones, and portfolio attention into one control center.
View product
Available by request · direct checkout inactive
Commercial Cleaning Bid Calculator
Build explicit bid economics, test gross margin, and compare forecast labor with actual labor after award.
View productCompare product families, proof, and the decision each system supports.
View all productsThe Trellon standard
Real workbook proof. Visible logic. Defined boundaries.
- 01
Start with the decision
Each system is organized around a practical management question, not a generic collection of tabs.
- 02
Keep the logic reviewable
Inputs, calculations, warnings, and outputs remain visible enough to inspect and challenge.
- 03
Show the real product
Product imagery comes from verified workbook releases and clearly identified fictional examples.
Founder-direct current review
Commercial Cleaning Revenue-Control Review
A fixed-scope comparison of governing contract and approved change records with current billing for up to 20 recurring commercial accounts.
- Fee
- $1,500 fixed
- Turnaround
- 7 business days
About Trellon Works
Founder-led systems. Evidence before claims.
Trellon Works develops practical operating tools and focused commercial reviews. The work stays close to source records, makes assumptions visible, and keeps management judgment where it belongs.
Chaser Todd, Founder, works directly on product definition, release review, customer-facing proof, and product-fit support.
- 01Define the decision
Start with the management question, required inputs, and explicit operating limits.
- 02Review the release
Check the clean master alongside a completed fictional example and the customer guidance.
- 03Show only supportable proof
Use actual workbook views, identify fictional data, and state compatibility and support boundaries before purchase.
Contact
Start with the system you need to review.
Questions about product fit or the current revenue-control review can start with a direct note to Chaser.
Contact Trellon Works chaser@trellonworks.com