This is the line-by-line reference that lets GCs and owners compare apples to apples.
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.
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.
| Item | Typical 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 backing | Framing sub |
| Exterior caulk to adjacent finishes (stucco, EIFS, metal panel) | Caulking sub |
| Interior drywall return and trim | Drywall sub |
| Painting (frames, trim, drywall return) | Paint sub |
| Electrical for automatic doors and access control | Electrical sub |
| Hoisting beyond a 19-ft single-operator boom lift | GC / specialty hoisting |
| Roof access for mast climbers or swing stage | GC |
| Final cleaning of glass (post-trades cleaning) | Final cleaning sub |
| Post-install protection | GC |
| Removal and disposal of existing glazing on renovation | Demo sub or by separate line |
| Permitting and threshold inspections | GC |
| 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.
Material (frames, glass, hardware), engineering and submittals, fabrication, freight, install labor, perimeter sealant at the glazing-to-substrate interface, NOA compliance, and manufacturer warranty.
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.
Scope interpretation, not pricing. The 30%-60% gaps come from one carrying shop drawings, hoisting, and perimeter sealant where the other excludes them.
Rough opening preparation is a GC responsibility. The glazing sub verifies tolerances before install and notifies the GC of non-conforming conditions.
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.
Send Bids for Comparison