Bid Phase Engineering Design

Bid‑Phase Engineering Services for Design‑Build Mechanical Contractors

BIM Concepts provides fast, practical, and code‑compliant engineering support to help mechanical contractors price projects accurately before drawings exist. All engineering work is performed under the complete direction and control of a Kentucky/Indiana‑licensed Professional Engineer.

Conceptual System Definition

Translate narrative requirements into a clear engineering concept:

  • HVAC system type confirmation
  • Preliminary capacities and airflow
  • Ventilation and exhaust requirements
  • Plumbing system approach
  • Code‑driven scope items

Preliminary Load Calculations

Block loads to support equipment sizing and scope quantification:

  • Envelope assumptions
  • Ventilation loads
  • Heating/cooling block loads

Equipment Sizing Guidance

Defensible equipment recommendations for pricing:

  • Tonnage and airflow
  • Heating capacity
  • Special features (economizers, ERVs, filtration, redundancy)

Preliminary Layout Concepts

Sketch‑level guidance to quantify ductwork, piping, and labor:

  • Duct mains and branches
  • Equipment locations
  • Shafts, chases, and routing constraints

Code Compliance Review

Identify scope items required by code:

  • ASHRAE 62.1 ventilation
  • Exhaust requirements
  • IECC energy code impacts
  • Grease waste and gas piping considerations

Scope Clarification & Risk Identification

Protect margins by identifying:

  • Missing information
  • High‑risk assumptions
  • Potential scope creep
  • Items requiring RFI

Value Engineering Options

Cost‑saving alternatives to strengthen your bid:

  • Equipment substitutions
  • Simplified zoning
  • Controls optimization
  • Routing efficiencies

Bid‑Phase Basis of Design (BOD)

A concise engineering document defining exactly what is being priced.

Pricing

Hourly Rate

  • Professional Engineer (PE): $210/hr

Fixed‑Fee Packages

  • Quick Concept Package: $750–$1,200
  • Full Bid‑Phase Package: $2,000–$3,500
  • Large Project Support: $3,500–$6,000

A La Carte Services

  • Conceptual system definition: $400–$800
  • Preliminary load calculations: $500–$1,000
  • Layout sketches: $600–$1,200
  • Code review: $400–$900
  • BOD document: $600–$1,200