National Restoration

Commercial Windows & Glazing

Storefront systems, curtain walls, and energy-efficient commercial glass installation

Commercial glazing is a specialized trade that intersects with structural engineering, energy code, accessibility compliance, and life safety. National Restoration designs, furnishes, and installs aluminum storefront systems, unitized and stick-built curtain walls, entrance doors, and high-performance insulated glass for office buildings, retail centers, medical facilities, schools, and institutional properties.

Whether the scope is a single storefront replacement after a break-in, a full curtain wall envelope re-glazing during a capital refresh, or ADA-compliant entrance upgrades across a multi-property portfolio, we deliver code-compliant installations with architectural-grade aluminum, properly specified glazing, and manufacturer-backed performance.

Why Our Commercial Glazing Stands Out

Commercial glass is unforgiving. Tolerances are tight, specifications are demanding, and compliance is non-negotiable.

Manufacturer Partnerships

Long-standing installer relationships with Kawneer, YKK AP, EFCO, Vitro, and Oldcastle BuildingEnvelope. Direct factory specification support and expedited material lead times.

Energy-Efficient Glazing

Low-E coatings, argon fills, warm-edge spacers, and triple-pane options that exceed IECC energy code requirements. Reduce tenant cooling loads and improve occupant comfort year-round.

Impact & Security Glass

Hurricane-rated laminated assemblies, bullet-resistant glazing for banking and government, and security films that delay forced entry. Specified to project-specific threat levels.

ADA Compliance Built-In

Entrance openings, approach clearances, threshold heights, and door operator specifications meet ADA and state accessibility codes. Automatic operators installed to BHMA A156.10 standards.

Occupied Building Work

Night and weekend installations, temporary enclosures, dust containment, and tenant protection plans so businesses keep operating while glazing is replaced unit by unit.

Emergency Board-Up

24/7 emergency response for broken storefronts, vandalism, and storm damage. Plywood and polycarbonate secure-ups same day, permanent glass ordered and installed on the fastest available timeline.

Commercial Glazing Systems

Full scope of aluminum glazing and entrance systems for every commercial application.

Aluminum Storefront Systems

Center-set and offset-glazed storefront for retail, restaurants, office lobbies, and mixed-use ground-floor tenant spaces. Thermally broken and non-thermal options, 1-3/4 inch and 2 inch sightlines.

  • Kawneer Trifab, YKK YES, EFCO 403/433 systems
  • Clear anodized, bronze, black, or custom Kynar
  • Medium and heavy stile entrance door integration
Curtain Wall Systems

Stick-built and unitized curtain walls for multi-story office, hospitality, and institutional buildings. Structurally glazed (SSG), captured, and pressure-equalized rain-screen options.

  • Thermally broken frames with high U-value glazing
  • Spandrel, vision, and shadow box construction
  • AAMA-tested performance for wind, water, and thermal
Entrance Doors & Hardware

ADA-compliant entrance doors with commercial-grade closers, panic hardware, and automatic operators. Low-energy and full-power swing operators, slide operators, and revolving doors.

  • LCN, Norton, and Besam automatic operators
  • Von Duprin and Adams Rite panic hardware
  • Access control integration and electric strikes
Window Replacement & Retrofit

Project-out, horizontal sliders, fixed lites, and punched-opening window replacement for office buildings, schools, and multifamily. Retrofit frame systems that minimize interior disruption.

  • Retain existing interior finishes where possible
  • Rough opening evaluation and flashing integration
  • Utility rebate qualifying energy packages
Installation Process

How Commercial Glazing Projects Are Delivered

From design assist through punch list, a predictable process designed for commercial pace and accountability.

1. Survey & Field Measure

Detailed field measurement of every opening, including substrate conditions, anchor patterns, and existing sealant interface. Laser and template verification for tight-tolerance curtain wall.

2. Shop Drawings & Submittals

AAMA-compliant shop drawings, performance data, and glazing submittals delivered for architect and owner review. Coordination with structural, MEP, and interior finish trades.

3. Fabrication & Staging

Aluminum fabricated and finished to project specifications. Glazing units ordered with appropriate lead time. Staging plans coordinate delivery to minimize site storage.

4. Installation & Sealant

Frames set plumb and square, anchors installed per engineering, glazing pressure-equalized or wet glazed as specified. Structural sealants and weather seals applied per manufacturer details.

5. Water Testing & Close-Out

Field water testing (AAMA 501.2) on representative bays, final punch list, sealant warranty registration, and maintenance manuals turned over to facility team.

Commercial office building glazing
Accessibility & Entrance Upgrades

ADA Entrance Modernization

Existing buildings often carry ADA deficiencies at entrances: hardware that exceeds operating force limits, thresholds over 1/2 inch, missing automatic operators, and narrow clear widths. We audit entrances, price upgrades to current ADA and ICC A117.1 requirements, and install compliant hardware and operators with minimal tenant disruption.

Property owners use our entrance modernization programs to reduce accessibility complaint exposure and improve daily usability for all visitors.

Request ADA Entrance Audit
Project Closeout

Comprehensive Glazing Warranties

Installation defects, insulated glass seal failures, and finish warranties all covered.

5-Year Workmanship

Five-year written warranty on installation, sealant adhesion, and water infiltration. We return for warranty calls and document every issue to root cause.

manufacturer specifications

Manufacturer-issued insulated glass seal warranties, Kynar finish warranties, and hardware warranties registered with manufacturers on project completion. Material warranty terms vary by product tier selected at proposal.

Upgrade Your Commercial Glazing With Confidence

Experienced installers, manufacturer partnerships, and AAMA-tested assemblies for every commercial glazing scope. Request a free survey and specification.