GC Resource / Bid Comparison Reference

Glazing Scope — Standard Inclusions and Exclusions

This is the line-by-line reference that lets GCs and owners compare apples to apples.

How to Use This Page

Before comparing two glazing bids on dollar amount, hand both bidders a copy of this reference and ask them to confirm or strike each line. The cleaner the bid scope, the less risk of change orders at month four.

ACG's bid format always includes the eight inclusion sections below and explicitly lists the standard exclusions. If your other bids do not, ask them to.

Standard Inclusions

1. Material

2. Engineering and Submittals

3. Fabrication and Freight

4. Install Labor

5. NOA / Florida Product Approval

6. Quality and Closeout

7. Safety

8. Warranty

Standard Exclusions

These are typically other-trade responsibilities. If a glazing sub does not exclude them explicitly, the bid is either incomplete or the work will arrive as a change order.

ItemTypical Responsibility
Structural backup framing (cold-formed steel, structural studs, embed plates)Steel / framing sub
Rough opening preparation (square, plumb, dimensional tolerance)GC / framing sub
Blocking and backingFraming sub
Exterior caulk to adjacent finishes (stucco, EIFS, metal panel)Caulking sub
Interior drywall return and trimDrywall sub
Painting (frames, trim, drywall return)Paint sub
Electrical for automatic doors and access controlElectrical sub
Hoisting beyond a 19-ft single-operator boom liftGC / specialty hoisting
Roof access for mast climbers or swing stageGC
Final cleaning of glass (post-trades cleaning)Final cleaning sub
Post-install protectionGC
Removal and disposal of existing glazing on renovationDemo sub or by separate line
Permitting and threshold inspectionsGC
Sales and use tax (where exempt purchase by owner)Owner

On a renovation, the glazing sub may carry demo if explicitly priced; on a new construction, demo is rarely glazing scope.

Common Sources of Bid Variance

  1. Shop drawings. Some bidders include sealed engineered shop drawings; others price them as an extra. Confirm.
  2. Hoisting. A 4-story curtainwall install needs a mast climber or boom lift. Who provides and operates it.
  3. NOA submittal time. Florida HVHZ NOA submittal can run 20-30 hours of engineer time. Some bidders include, some carve out.
  4. Field measure trips. Two trips standard; if drawings change, additional trips at hourly rates.
  5. Punchlist returns. First two returns standard; additional returns billable.
  6. Glass breakage during install. Standard breakage allowance in bid; replacement at cost beyond allowance.
  7. Manufacturer lead time. 8-16 weeks standard.

Frequently Asked Questions

What is typically included in a commercial glazing bid?

Material (frames, glass, hardware), engineering and submittals, fabrication, freight, install labor, perimeter sealant at the glazing-to-substrate interface, NOA compliance, and manufacturer warranty.

What is typically excluded?

Structural backup framing, blocking, rough opening preparation, sealant to adjacent finishes, interior drywall return, painting, electrical for auto doors, hoisting beyond a 19-ft boom, final cleaning, and post-install protection.

Why do glazing bids vary so widely?

Scope interpretation, not pricing. The 30%-60% gaps come from one carrying shop drawings, hoisting, and perimeter sealant where the other excludes them.

Should the glazing sub provide rough opening protection?

Rough opening preparation is a GC responsibility. The glazing sub verifies tolerances before install and notifies the GC of non-conforming conditions.

What if the bid does not list inclusions and exclusions clearly?

Ask the bidder to revise before award. A glazing sub that will not commit to written scope before award will not commit during construction either.

If you have two glazing bids and the dollar gap is over 15%, send them both. Bid reviews returned within 24 hours.

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