Resource · Plain-English Guide

How Long Does Commercial Glass Installation Actually Take?

Quick answer: A typical commercial glass installation in Florida takes 6-16 weeks from bid award to substantial completion. The breakdown: shop drawings 2-4 weeks, owner/architect review 1-2 weeks, AHJ submittal and NOA review 2-4 weeks, material lead time 4-10 weeks (running in parallel), installation 1-4 weeks. Custom finishes, blast-rated assemblies, and curved glass add 4-8 weeks.

Phase 1: Shop drawings and engineering (2-4 weeks)

After contract award, the glazier produces shop drawings showing exact mullion locations, glass sizes, hardware schedule, and structural calculations. For HVHZ work, this phase also includes pulling the right Miami-Dade NOA or Florida Product Approval for the assembly. Shop drawings take 10-15 working days for a typical storefront and 15-25 working days for a curtain wall.

Phase 2: Owner/architect review (1-2 weeks)

The architect and owner mark up shop drawings — color selection, hardware tweaks, threshold details, sealant joints. The glazier revises and re-submits. This phase often adds 1 round of revision, which adds another 5 working days.

Phase 3: AHJ submittal and permit (2-4 weeks)

Some Florida AHJs review storefront submittals quickly (5-7 business days); others take 15-20. Miami-Dade County is generally fast on NOAs but slow on construction permit review for the building. Plan for 3 weeks average.

Phase 4: Material lead time (4-10 weeks, in parallel)

Aluminum extrusions are typically 3-5 weeks lead time. Stock glass is 1-2 weeks. Custom glass (low-E, laminated, frit, ceramic-coated) is 4-8 weeks. Custom-anodized or PVDF-painted aluminum is 8-12 weeks. Material lead time runs in parallel with shop drawings and submittal, so the total isn't additive — it's the longest single track.

Phase 5: Installation (1-4 weeks)

A 200 SF restaurant storefront installs in 2-3 working days. A 5,000 SF curtain wall installs in 4-8 working weeks. Speed depends on access, site congestion, and weather. Florida summer thunderstorms can shut down crane work mid-day — schedule accordingly.

How to compress the timeline

Bid early with full architectural drawings. Choose stock aluminum colors and standard NOA glass. Lock the GC's structural opening before shop drawings — re-engineering after framing changes is the single biggest schedule killer. Order material on signed contract, not on permit issuance.

Frequently asked

How long does commercial glass installation take?

A typical commercial glass project in Florida takes 6-16 weeks from contract to substantial completion. The breakdown: 2-4 weeks shop drawings, 1-2 weeks review, 2-4 weeks permit, 4-10 weeks material lead time (parallel), and 1-4 weeks installation.

What's the fastest commercial glass install?

A small storefront tenant improvement (under 200 SF) using stock aluminum and standard tempered glass can install in 2-3 weeks from contract — if shop drawings are simple and the permit is fast.

Why do curtain wall projects take so long?

Curtain wall requires more engineering, more shop drawings, and longer material lead times. Unitized curtain wall is fabricated in panels off-site, which adds 6-10 weeks to the schedule but reduces field install time.

Can material lead time be sped up?

Sometimes — paying expedite fees to extrusion suppliers can shave 1-2 weeks. Stock glass and stock aluminum colors save 2-4 weeks vs. custom. Working with a glazier who carries the right stock inventory saves time.

What's the biggest cause of schedule slippage?

Building department permit delays, structural opening changes after shop drawings, and weather. The first two are controllable; the third is not.

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