CURTAIN WALL
REPAIR & SERVICES
IN BONHAM, TX.
Bonham's commercial building stock has a median year built of 1975 — placing most of the city's commercial inventory at or past the 50-year mark where original glazing seals and curtain wall gaskets have long exhausted their service life. The Sam Rayburn Memorial VA Medical Center campus and Vector Systems' incoming 56,000-sq-ft facility represent both the legacy institutional and emerging industrial market for curtain wall services.
What Curtain Wall Repair Includes
Systematic repair for glass and metal curtain wall systems — from perimeter sealant replacement to panel swap-outs.
Wet Seal Replacement
Remove failed perimeter sealant from glass-to-frame and frame-to-structure joints. Clean substrates and apply compatible structural silicone or urethane sealants rated for the system's movement and exposure.
On Bonham's 50-year-old institutional and commercial buildings, original wet seals — often polysulfide compounds from the 1970s — have carbonized and lost adhesion over decades. Proper removal requires mechanical tooling to avoid substrate damage before new sealant application.
Gasket & Dry Glazing Repair
Replace deteriorated EPDM, silicone, or neoprene gaskets in pressure-plate and structural glazing systems. Includes compression testing and alignment verification to restore the original weather seal.
Bonham's Blackland Prairie clay soils exert up to 14,000 lbs/sq-ft of pressure on foundations during wet-dry cycles. That cyclical movement propagates to curtain wall anchor channels and displaces pressure-plate alignment, causing gasket compression failures that open to weather infiltration.
Leak Investigation & Diagnosis
Systematic water testing per AAMA 511/ASTM E1105 to locate leak paths. We isolate individual components — sealant, gaskets, weeps, frame joints — to identify the actual failure before recommending repairs.
For the Sam Rayburn Memorial VA Medical Center, formal ASTM E1105 testing documentation supports capital project justification — a requirement for federally funded building envelope repairs. We provide written test protocols and results that meet VA facility management documentation standards.
Panel & Infill Replacement
Replace damaged, discolored, or delaminated spandrel glass, insulated units, and metal infill panels. We source compatible units and coordinate installation to maintain visual consistency.
Vector Systems Inc.'s relocation to Bonham — a 56,000-sq-ft facility with nearly $35 million in annual revenue — signals an emerging light industrial corridor where building appearance matters for talent and client recruitment. Panel replacement on new construction, if installation deficiencies are identified at commissioning, is far less expensive than addressing infiltration-related interior damage later.
Industries We Serve in Bonham
Why Bonham's Buildings Are at a Curtain Wall Inflection Point
Bonham is the Fannin County seat with deep civic heritage and a commercial building stock where the majority of structures are now 50+ years old. The Sam Rayburn Memorial VA Medical Center — a multi-building federal healthcare campus — represents the city's largest institutional building client with ongoing facility-condition index requirements and capital maintenance obligations.
The city is entering a new phase of industrial development: Vector Systems Inc. announced in March 2026 its relocation from McKinney to a projected 56,000-sq-ft facility off Highway 82, with the Jones Field Airport area and BEDCO-assisted manufacturing adding to a growing light industrial corridor. These new buildings require proper curtain wall and envelope specifications from commissioning.
Griffin Restoration is headquartered in Whitesboro — neighboring Grayson County — putting Bonham squarely in our core North Texas service area. We understand Fannin County's Blackland Prairie clay conditions and have experience with federal facility documentation requirements.
Bonham's commercial stock is 50+ years old — original curtain wall sealants and gaskets are well past service life
Fannin County Blackland Prairie soils — cyclical pressure that stresses curtain wall anchors and frame joints every wet-dry season
New 2026 industrial HQ anchoring Bonham's Highway 82 corridor — proper envelope commissioning from day one
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 failure originates in sealant degradation, gasket compression loss, and anchor movement from substrate shifting. In Bonham, the dominant driver is time and soil — a median commercial year built of 1975 means most of the city's commercial stock is now 50+ years old, well past the 25-30 year service life of original sealant and glazing systems. Bonham lies on the eastern edge of North Texas's Blackland Prairie clay belt, where expansive soils exert up to 14,000 lbs/sq-ft of pressure on foundations during wet-dry cycles, stress-cracking facade masonry and opening caulk and curtain wall joints. Severe weather accelerates the problem: a June 2025 storm struck Bonham with winds up to 90 mph and quarter-size hail, while a 2012 supercell dropped softball-sized hail causing an estimated $905 million in damage across North Texas.
How do you diagnose leaks in a curtain wall system?
We use AAMA 511 and ASTM E1105 water testing to isolate leak sources before any repair work. In Bonham's federal and institutional buildings — including the Sam Rayburn Memorial VA Medical Center with its multi-building campus spanning multiple construction phases — curtain wall systems often exist alongside older window wall and masonry construction. Spray bar testing with sequential masking identifies whether water is entering at a glazing perimeter seal, a gasket, a weep system, or a frame-to-masonry transition. For VA and government buildings with facility-condition index requirements, we document existing conditions and test results formally to support capital planning documentation.
What is wet seal repair for curtain wall systems?
Wet seal repair removes deteriorated perimeter sealant at glass-to-frame and frame-to-structure joints and replaces it with structural silicone or urethane sealant rated for the system's movement class and North Texas weather exposure. Bonham's 50-year-old commercial building stock means original wet seals — where present on 1970s-era commercial glazing retrofits — have long exceeded their service life. On the Sam Rayburn Memorial VA Medical Center campus, proactive wet seal replacement is a facility-condition index maintenance item that prevents more costly water infiltration remediation. On Vector Systems' new 56,000-sq-ft facility (projected 2026), proper sealant specification from commissioning establishes a baseline for long-term envelope performance.
How often should curtain wall sealants be inspected?
Annual visual inspection and a professional assessment every 3-5 years is standard. For Bonham's federal and institutional buildings, we recommend inspection cadences tied to facility-condition index reporting cycles. After weather events — Bonham's June 2025 storm (90 mph winds, quarter-size hail) and Fannin County's 2012 softball-hail event ($905 million regional damage) — inspect immediately regardless of the maintenance schedule. Blackland Prairie clay soils exert up to 14,000 lbs/sq-ft of cyclical pressure, meaning joints in 50-year-old buildings may be experiencing accelerating movement that changes faster than a 5-year inspection cycle can track.
Can curtain wall repairs be done on occupied high-rise buildings?
Yes — and the Sam Rayburn Memorial VA Medical Center in Bonham is a working federal healthcare campus with active patient care. We use our 56' and 72' boom trucks for exterior access without scaffolding, minimizing the footprint of construction equipment on the VA campus. Work is staged floor-by-floor and scheduled with VA facility management to avoid patient care areas and maintain compliance with infection control requirements. For the VA's EHRM modernization program — which completed the only fully on-time infrastructure rollout in the entire VA system — exterior envelope maintenance is a logical complement to the interior systems work already underway.
Related Services
Curtain wall repair often works alongside these complementary services.
Commercial Caulking & Sealant
Perimeter sealant replacement at window frames, expansion joints, and facade penetrations. Often coordinated with curtain wall wet seal work for a single-mobilization envelope repair.
Learn more about our sealant services →Commercial Waterproofing
Elastomeric coatings and membrane systems for masonry and concrete portions of the building envelope. Complements curtain wall repair for a complete moisture management approach.
See our waterproofing capabilities →Exterior Building Repair
Concrete spandrel repair, EIFS remediation, and masonry restoration adjacent to curtain wall systems. We coordinate both scopes to avoid redundant mobilization costs.
Explore exterior repair services →Protect Your Bonham Property
Whether you manage the Sam Rayburn VA Medical Center campus, a historic building on the Courthouse Square, or a new industrial facility off Highway 82 — we'll assess your curtain wall and provide a detailed scope of work.