Pre-Construction Estimating

Pre-Construction Estimating Solutions Delivering Excellence and Value

Precision Takeoffs. Smarter Engineering. Stronger Project Outcomes.

Precision Takeoffs

On-Screen Takeoff & Quantity Takeoffs You Can Rely On

Our OST/QTO services deliver precise, structured quantity takeoffs that form the backbone of accurate construction cost estimates. Whether you need door schedules, hardware counts, or Division 10 BOQs, our pre-construction estimator team ensures numbers match drawings.
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Zero Errors

Quality Check Process That Ensures Accuracy Before You Order

Aorbis applies a multi-stage quality check process to every takeoff and submittal. Our QC prevents mismatches between specification writing and field requirements.

Drawing-spec cross-verification

ADA, fire-rating & code validation

Product compatibility checks (hardware, finishes)

Missing-item & duplicate detection

Streamlined Construction Solutions for Cost, Timing, and Installation

From early cost analysis to final installation, Aorbis streamlines every step of Division 8 and 10 delivery. Our integrated approach—Value Engineering, Just-In-Time Delivery, and Installation Support—helps GCs and estimators reduce risk, maintain schedule certainty, and eliminate avoidable jobsite complexity. Each service is designed to cut pre-construction costs, simplify coordination, and ensure accurate, installation-ready packages.

Our Value Engineering process analyzes alternatives, reduces unnecessary spend, & improves lifecycle value. Aorbis’ VE recommendations are spec-aware, compliant, & installer-friendly.

JIT coordination reduces onsite storage, damage, and double-handling. We align deliveries with install sequences to keep your schedule intact and your pre construction costs lower.

We deliver installation-ready schedules, verified hardware sets, and placement diagrams so installers get the right product in the right location the first time. This reduces RFIs, change orders, and on-site delays.

How We Work

Our Proven 5-Step Workflow - From Drawings to Smooth Install

Drawing & Specification Review

Drawing & Specification Review

We analyze plans, specs, door schedules & details to prepare accurate scopes.
Digital OST/QTO Takeoffs

Digital OST/QTO Takeoffs

Clean, detailed opening counts and quantities for Division 8 & 10.
Multi-Layer Quality Check & Validation

Multi-Layer Quality Check & Validation

Every takeoff is checked against specs, codes, and field conditions.
 Value Engineering Analysis & Cost Alignment

Value Engineering Analysis & Cost Alignment

We provide alternates, cost-saving options, and lifecycle optimization.
Procurement Coordination, JIT Planning & Installation Support

Procurement Coordination, JIT Planning & Installation Support

A single streamlined step that covers delivery coordination and installation-ready documentation.

Download Sample for Quantity Takeoff

Have any Questions

Recently Asked Questions

Our pre-construction estimating includes digital OST/QTO takeoffs, BOQs, spec alignment, and cost validation. We deliver formats ready for estimating teams to import into estimating software.

We typically deliver 95–98% takeoff accuracy depending on drawing clarity. Our quality check process and experienced preconstruction estimator team reduce errors and unknowns.

Yes — through value engineering, material substitutions, and optimizing installation sequencing, we help reduce pre construction costs while keeping performance and compliance intact.

Excel, CSV, PDF, and contractor-specific templates (for easy import to estimating systems).

Absolutely — we work with GCs and field teams to align deliveries to installation windows and phases.

Use our FREE Construction Bid Proposal Checklist to stay organized and avoid costly bid mistakes.

Free Pre-Construction Estimating Assessmentr

Free Pre-Construction Estimating Assessment

We'll provide insights on takeoff accuracy, potential cost savings via value engineering, and risk reduction.
We typically deliver your personalized estimating assessment within 48-72 business hours.%

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    Project Information & Upload Plans

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    Scope Focus (check all that apply – the more details, the better we can assess)

    Doors, frames & hardware (Division 8)Toilet accessories, partitions & specialties (Division 10)Need quantity takeoffs / BOQInterested in value engineering / cost alternativesNeed help with code compliance (ADA, fire-rating, etc.)Looking for Just-In-Time delivery coordinationWant installation-ready schedules & support

    How did you hear about Aorbis? (optional)

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