HVAC Estimating Services for Ductwork, Equipment, and Controls
Ductwork geometry alone can make or break an HVAC estimate, rectangular, round, and oval ducts all price differently, and a takeoff that treats them the same will be wrong before the job even starts. Spiron Engineering provides detailed HVAC estimating services covering ductwork, equipment, piping, and controls, so HVAC contractors and duct fabricators can bid with numbers built from the actual system, not a flat square-footage rate.
Planning & Strategy
Accurate HVAC quantities depend on a shape-by-shape, component-by-component review of the drawings, not a rough allowance per square foot.
- Detailed Scope Review
- Industry Standard Formatting
- Consistent Turnaround Times
- Quality Control System
- Trade-by-Trade Breakdown
- Software-Compatible Deliverables
Ductwork
Rectangular, round, and oval duct systems, casings, insulation, and duct fittings, measured individually since geometry directly affects material cost.
Equipment
Condensing units, exhaust fans, pumps, hangers, and supports.
Piping & Controls
HVAC piping systems and building automation and control components.
Duct Fabrication
Takeoff support for duct fabrication and sheet metal contractors, quantified from your shop drawings.
How We Approach Your Estimate
We break your HVAC system down by duct shape, elbows, fittings, and connectors are priced separately from straight runs, since bundling them into a flat linear-foot rate is one of the most common sources of HVAC estimating error. Material, labor, and equipment costs reflect current local pricing, and every deliverable includes a full takeoff summary, color-coded drawing markup, and fixture list ready for your bid.
HVAC Projects We Estimate
- Residential & Multi-Family
- Commercial Offices & Retail
- Healthcare Facilities
- Warehouses & Industrial Buildings
- New Systems & System Upgrades
Trades We Cover
- Mechanical & HVAC
- Plumbing
- Electrical
- Concrete & Masonry
- Structural Steel & Framing
- Roofing & Waterproofing
- Sitework & Earthwork
Questions? You’re covered
We price rectangular, round, and oval ductwork separately, since each has different material and fabrication costs. Averaging them into one rate is where many HVAC estimates go wrong.
Yes. We support duct fabrication and sheet metal contractors with takeoffs built from shop drawings, not just design-level plans.
HVAC drawings showing ductwork layout and equipment schedules. If your plans are still preliminary, we can work from what’s available and note any assumptions made.
We are always ready to help you and answer your questions
