About Keystone Preconstruction Group
Contractor-Side Division 7 Expertise
Keystone Preconstruction Group provides specialized estimating and preconstruction support for commercial roofing, waterproofing, air-barrier, sheet-metal, sealant, and building-envelope contractors.
Who We Are
Keystone is an outsourced Division 7 estimating partner built from real contractor-side experience. We understand bid deadlines, addenda, supplier quotes, scope gaps, and the need to submit a complete number on time.
Our Mission
Our mission is to give Division 7 contractors dependable estimating capacity so they can pursue more qualified opportunities, reduce bid risk, and protect margin.
What We Do
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✓ Division 7 Cost Estimating
✓ Roofing & Waterproofing Takeoffs
✓ Air Barrier & Sealant Takeoffs✓ Architectural Sheet Metal Takeoffs
✓ Scope & Specification Review
✓ Vendor Pricing & Bid Compilation
Our Division 7 Estimating Process
Review
We review the plans, specifications, scope, schedule, and bid requirements.
Clarify
We identify missing information, conflicts, scope gaps, and items requiring clarification.
Quantify
We complete detailed Division 7 quantity takeoffs organized by system, assembly, area, and bid scope.
Estimate
We apply labor, material, equipment, subcontractor, and market pricing.
Validate
We verify quantities, pricing, assumptions, alternates, and bid risk.
Deliver
We provide a clear estimate, takeoff, or bid package ready for your review.
Why Choose Us?
Clients choose Keystone for contractor-side experience, Division 7 specialization, accurate takeoffs, clear assumptions and exclusions, and dependable bid support.
Ready to Strengthen Your Next Bid?
Send us your plans, specifications, and bid requirements. We’ll review the project and discuss how Keystone can support your estimating and preconstruction needs.