CURTAIN WALL
REPAIR & SERVICES
IN PLANO, TX.
AT&T announced a $1.35 billion global HQ at 5400 Legacy Drive in January 2026 — up to 10,000 employees, targeting 2028 occupancy. That announcement is already raising the standard every surrounding building in Legacy must meet. The district's oldest campuses carry 30–40 year old curtain wall sealant systems. Two catastrophic North Texas hail events in 2023 and 2024 added micro-damage on top of natural aging. The window for proactive restoration is now.
What Curtain Wall Repair Includes
Comprehensive curtain wall services for commercial buildings — from wet seal replacement to full panel and infill work.
Wet Seal Replacement
The Legacy Business District's oldest buildings — Frito-Lay's 556,000-sq-ft campus (joined 1985), Pizza Hut's HQ, and the first generation of Legacy office towers — carry 30–40 year old wet seal. At this age, hardening, oxidation, cohesive splitting, and full adhesion loss are typical findings, not exceptions. Every building in this vintage is a candidate for full wet seal replacement.
We remove all degraded sealant, prepare substrates, and install commercial-grade silicone with movement capability and color specification appropriate for Class A Plano properties. For LEED-certified buildings including Toyota's 2.1M sq ft Platinum campus, we specify materials consistent with the project's sustainability documentation.
Gasket & Dry Glazing Repair
EPDM and neoprene gaskets on Plano's 1980s–1990s curtain wall systems have experienced 30–40 thermal cycles per year for three decades. Compression loss is universal at this age. On Legacy's high-visibility glass towers — Granite Park, Legacy West, and the HQ campuses visible from the Dallas North Tollway — gasket failure produces visible water staining that directly affects tenant perception and lease values.
We measure compression, identify failed sections, and replace gaskets with materials matched to the original frame specification. Staged replacement programs allow large Legacy campuses to address gasket failure systematically without full-building closure.
Leak Investigation & Diagnosis
Post-storm inspection in Plano requires systematic water testing, not just visual survey. The May 2024 hail event ($2.3B in regional damage) and June 2023 storms ($7–10B in insured losses) created micro-tears in curtain wall sealant across thousands of Legacy District buildings. Hail impact damage is invisible from grade but produces active infiltration at the next rain event.
Our diagnostic process — controlled water testing, boom truck elevation access to upper floors, and infrared thermography — traces infiltration back to the actual source and produces written findings with prioritized repair recommendations. Insurance documentation support is available for storm-damage claims.
Panel & Infill Replacement
The Legacy corridor's wave of HQ relocations — Toyota (2017), AT&T (announced 2026) — triggers building repositioning that requires signage removal, penetration repair, and panel replacement on buildings being upgraded to compete. The former J.C. Penney HQ (1.8M sq ft, early 1990s) undergoing $1B redevelopment into The Park at Legacy is the most visible example of this pattern.
We replace damaged spandrel glass, aluminum composite panels, and opaque infills with current-manufacture materials. For repositioned buildings competing for AT&T's supply chain, Class A facade integrity is a baseline requirement — not an upgrade.
Industries We Serve in Plano
Why Plano Buildings Need Curtain Wall Service Now
The Legacy Business District — conceived by Ross Perot in the early 1980s and now spanning 2,665 acres — contains the highest concentration of aging curtain wall systems in North Texas. Buildings where original sealant was installed in the late 1980s and early 1990s are now 30–40 years old. The designed service life for commercial wet seal is 20–25 years. Every building in this vintage is operating on borrowed time.
AT&T's announcement of a $1.35B global headquarters at 5400 Legacy Drive — up to 10,000 employees, targeting 2028 — is already repositioning the competitive landscape for every building in the corridor. Legacy buildings that cannot present at Class A standards will lose tenants to AT&T's supply chain and the new construction accompanying its campus. Curtain wall integrity is a precondition for Class A certification, not an optional maintenance item.
Two catastrophic hail events — May 2024 ($2.3B regional damage) and June 2023 ($7–10B insured losses) — added micro-damage on top of aging sealant systems. The combination makes proactive curtain wall assessment a financial necessity: catching hail-accelerated failure now costs a fraction of the water damage, tenant claims, and lease-rate pressure that deferred repairs produce.
Announced January 2026 — raising Class A standards for every surrounding Legacy District building
Legacy's 30–40 year old curtain wall sealant systems are operating well past their 20–25 year designed service life
Two catastrophic events added micro-damage to aging curtain wall systems across Plano's Class A building stock
Why Choose Griffin Restoration
Commercial exterior restoration since 2000
Licensed in TX, OK, AR, and LA
56' and 72' — self-performing capability
Full coverage for commercial projects
Curtain Wall Repair FAQ
What causes curtain wall systems to fail on commercial buildings?
Curtain wall failures trace to sealant degradation from UV and thermal cycling, gasket compression loss, fastener corrosion, and substrate movement that opens joints beyond sealant elongation capacity. In Plano's Legacy Business District — where median year built is 1993 and the oldest campus buildings date to Frito-Lay's 556,000-sq-ft facility (joined Legacy 1985) — original wet seal systems installed in the late 1980s and early 1990s have far exceeded their 20–25 year designed service life. Plano's high-density glass curtain wall Class A towers add a specific risk: the May 2024 North Texas hail event caused $2.3B in regional damage, and curtain wall sealant micro-tears from hail impact are invisible from grade but produce active infiltration at the next rain event. AT&T's $1.35B global HQ arrival at 5400 Legacy Drive (announced January 2026) is now creating competitive pressure on surrounding 1980s–1990s buildings to meet Class A standards — which aging curtain wall systems cannot do without professional restoration.
How do you diagnose leaks in a curtain wall system?
Diagnosis begins with a visual survey identifying sealant failure, glazing compound gaps, oxidized wet seal, and visible panel separations. We follow with controlled water testing — spray rack or hose test — to isolate active infiltration under known field conditions. Our 56' and 72' boom trucks reach upper elevations on Plano's multi-story Legacy District towers and Granite Park Class A buildings without scaffolding. Infrared thermography is particularly valuable in Plano's Legacy corridor, where tenant improvements and interior buildout on older campuses — the former J.C. Penney HQ (1.8M sq ft, early 1990s), now undergoing $1B redevelopment — often mask water damage behind finished surfaces. We provide written findings with photographic documentation, elevation diagrams, and prioritized repair recommendations.
What is wet seal repair for curtain wall systems?
Wet seal is the silicone or polyurethane sealant between curtain wall frame members and glazing panels that provides the primary weather barrier. In Plano's Legacy Business District — conceived by Ross Perot in the early 1980s and spanning 2,665 acres — buildings where initial sealant was installed in the late 1980s and early 1990s are carrying 30–40 year old wet seal. Hardening, oxidation, cohesive splitting, and full adhesion loss are typical findings at this age. Repair involves removing all existing sealant, cleaning and priming the joint, and installing commercial-grade silicone with movement capability matched to each building's actual thermal cycling range. For Class A corporate campuses including Toyota's 2.1M sq ft LEED Platinum complex and AT&T's incoming HQ campus, color specification and appearance matching are part of the scope.
How often should curtain wall sealants be inspected?
We recommend annual inspection for systems over 20 years old, and immediately after any significant hail event. Plano's track record is clear: May 2024 caused $2.3B in regional damage; June 2023 storms caused $7–10B in insured losses. For the density of glass curtain wall buildings in Legacy West, Granite Park, and The Shops at Legacy, post-storm inspection is not optional — it's a fiduciary responsibility for property managers and facility directors. The competitive window created by AT&T's HQ arrival (up to 10,000 employees at 5400 Legacy Drive, targeting 2028 partial occupancy) means surrounding buildings need to present at Class A standards, which requires confirmed curtain wall integrity as a baseline.
Can curtain wall repairs be done on occupied high-rise buildings?
Yes — curtain wall repair work is routinely performed on fully occupied multi-story buildings. Our 56' and 72' boom trucks provide exterior access to upper elevations without scaffolding, interior access, or tenant notification. We sequence work by elevation section to maintain building weather-tightness throughout. For Plano's largest corporate campuses — Toyota's seven-building, 2.1M sq ft complex; Frito-Lay's 300-acre facility; Encore Wire's 3.5M+ sq ft McKinney-adjacent portfolio — we develop multi-phase work programs aligned with each tenant's operational calendar. On high-profile buildings like those in Legacy West, we also coordinate work scheduling with property management communications to maintain Class A appearance standards during the repair period.
Related Services
Curtain wall repair often works alongside these complementary services.
Commercial Caulking & Sealant
Perimeter sealants, expansion joints, and transition details at window and door heads complement curtain wall wet seal replacement for complete building envelope protection on Plano's aging Legacy District campuses.
Learn more about our caulking services →Commercial Waterproofing
Elastomeric coatings and membrane systems protect the opaque areas of your building envelope, working in conjunction with curtain wall repairs for comprehensive moisture control on Class A Plano properties.
See our waterproofing capabilities →Exterior Building Repair
Spalled concrete, deteriorated masonry, and damaged facade substrates identified during curtain wall inspection are handled in a single mobilization — reducing cost and disruption on Plano's occupied corporate campuses.
Explore exterior repair services →Protect Your Plano Property
Whether you manage a Legacy Business District corporate campus, a Granite Park Class A tower, or a commercial building repositioning for the AT&T-driven market shift — we'll assess your curtain wall system and provide a detailed scope of work.