PARKING GARAGE
REPAIR & MAINTENANCE
IN SHERMAN, TX.
Sherman's $35 billion semiconductor investment — Texas Instruments' four-factory campus plus GlobiTech's wafer plant — is the largest private-sector investment in Texas history, bringing construction workers, suppliers, and new commercial development to Grayson County. Meanwhile, Sherman's existing parking structures serving the downtown core, Austin College, and the medical center average over 40 years old. Both the old and the new need professional structural assessment now.
What Parking Garage Repair Includes
Comprehensive structural and waterproofing repair for commercial parking structures — from spall repair to full membrane replacement.
Structural Concrete Repair
Spalling, delamination, and exposed rebar are the visible signs of structural deterioration in parking decks. We remove all unsound concrete beyond the reinforcement, clean and treat the rebar, and restore with engineered repair mortars matched to the existing slab's compressive strength and chloride exposure class.
For Sherman's parking structures built in the 1970s and 1980s — serving the downtown historic district, Austin College, and Wilson N. Jones Regional Medical Center — original concrete quality and rebar coverage often doesn't meet modern standards. Our repair approach accounts for the existing structure's characteristics, not just the defect in isolation.
Expansion Joint Replacement
Failed expansion joints are the primary water infiltration path in multi-level parking structures. We perform full nosing removal, substrate preparation, and installation of prefabricated joint systems or pour-in-place elastomeric sealants rated for vehicle loading, thermal movement, and chemical resistance.
Sherman has recorded 41 on-the-ground hail reports and 83 severe weather warnings in the past 12 months. The freeze-thaw cycles that follow major weather events drive significant joint movement — properly specified joint systems, selected for Sherman's specific thermal range and clay soil conditions, last 15-20 years versus 3-5 for minimum-spec products.
Traffic-Bearing Waterproofing
Traffic-bearing membrane systems protect structural slabs from water, deicing chemicals, and vehicle fluids while withstanding continuous vehicle load and abrasion. We install polyurethane and methyl methacrylate (MMA) systems on parking decks, with wearing course and base membrane specified for each facility's traffic volume and exposure conditions.
For Sherman's new industrial park parking areas — Progress Park (3,300 acres) and Midway Industrial Park (300 acres rail-served) — heavy truck traffic and equipment loads demand membrane systems rated for the specific load class, not residential-grade products applied at commercial scale.
Post-Tension Cable Inspection & Repair
Post-tensioned parking structures depend on high-strength tendons under continuous stress. Moisture intrusion through failed membrane or joints can initiate corrosion or mechanical damage to a tendon anchor or cable — consequences that are invisible until a structural event occurs.
Sherman's 41-year median building age means post-tension parking structures built in the 1980s are well past recommended inspection intervals. We perform visual and sounding surveys and coordinate tendon repairs with licensed structural engineers — giving facility managers documented evidence of structural condition.
Industries We Serve in Sherman
Why Sherman Parking Structures Need Attention Now
Sherman's median commercial year built of 1980 tells the story: the parking structures serving downtown, the medical district, and Austin College are 40+ years old — well past the 20-25 year service life of original waterproofing systems, expansion joints, and concrete protection. At the same time, the $35 billion semiconductor investment is bringing new construction and renovation pressure to the city's existing commercial facilities.
Texas Instruments began production at its SM1 facility in late 2025. GlobiTech's $5 billion wafer plant is under construction. This scale of economic activity is driving commercial development demand across Sherman's industrial corridors — existing buildings compete for tenants against new construction, creating urgency for envelope upgrades and structural restoration to remain competitive.
Located just 16 miles from our Whitesboro headquarters, Sherman is in our core service area. We've worked on commercial buildings across Grayson County and understand the specific challenges — from the clay soils that pressure below-grade structures to the severe weather corridor that delivers 41 hail events in a single year.
TI + GlobiTech semiconductor campus — the largest private-sector investment in Texas history drives commercial demand across Sherman
Sherman's commercial stock — including its parking structures — averages 40+ years old and past original waterproofing service life
Whitesboro to Sherman — core service area, 29-minute response
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
Parking Garage Repair FAQ
What types of repairs do parking garages typically need?
Parking structures deteriorate through several concurrent mechanisms: chloride-induced rebar corrosion from deicing salts and vehicle traffic, concrete spalling from freeze-thaw cycling, failed expansion joints that channel water into the structural slab, and degraded traffic-bearing membranes that allow moisture to reach post-tension tendons. In Sherman, where the median commercial building dates to 1980 — meaning original waterproofing systems are 40+ years old — and where the city has recorded 41 on-the-ground hail reports and been under 83 severe weather warnings in the past 12 months, parking structures serving Austin College, Wilson N. Jones Medical Center, and the city's industrial corridor face compound deterioration demands.
How do you repair expansion joints in a parking structure?
Expansion joint repair begins with complete removal of the deteriorated nosing and sealant — we never overinstall on failed material. The substrate is saw-cut to clean edges, mechanically prepared, and fitted with a new prefabricated joint system or pour-in-place elastomeric sealant matched to the structure's movement range and traffic loading. In Sherman, where Grayson County's expansive clay soils exert lateral pressure on below-grade structures and seasonal temperature swings drive significant slab movement, joint systems must be specified for the full local thermal and hydrologic range — not minimum-code products that fail within a few seasons.
What is traffic-bearing waterproofing for parking garages?
Traffic-bearing waterproofing is a membrane system engineered to withstand vehicle loads, abrasion, and chemical exposure while maintaining a continuous moisture barrier across the structural slab. Unlike standard roof or building waterproofing, it must bond to concrete, flex with structural movement, and resist fuel and oil degradation. For Sherman's parking structures serving Progress Park (3,300 acres of industrial and manufacturing facilities), Midway Industrial Park, and downtown civic buildings — including the Grayson County Courthouse area — properly specified traffic-bearing membranes protect the structural investment from water and chloride infiltration.
Can parking garage repairs be done without closing levels to traffic?
Yes, in most cases. We develop phased repair plans that keep portions of the structure accessible throughout the project. Concrete spall repairs are isolated to single bays; traffic-bearing membrane replacement is staged by drive aisle to maintain circulation; expansion joint replacement is sequenced around peak usage hours. For Sherman's institutional facilities — Austin College ($83M annual economic impact), Wilson N. Jones Regional Medical Center (approximately 1,000 staff) — maintaining parking access during repairs is a non-negotiable operational requirement that we plan around from project inception.
How do you prioritize repairs on an aging parking structure?
We conduct a condition survey mapping all defects — active cracks, spalls, delaminations, failed joints, and membrane failures — by location, severity, and escalation risk. Structural risk items come first: exposed rebar, active water infiltration into post-tension zones, and delaminated slab sections. Waterproofing integrity comes second: failed membranes or joints that will cause structural damage if left. For Sherman's older parking structures — many built in the 1970s and 1980s when the downtown core and US-82 corridor were developed — this often means prioritizing below-grade waterproofing where Grayson County clay soils exert hydrostatic pressure against foundation walls and parking level decks.
Related Services
Parking garage repair often works alongside these complementary services.
Commercial Concrete Repair
Spall repair, crack injection, and slab restoration for commercial and industrial concrete across Sherman's aging building stock — the same expertise applied to parking structures extends to all exterior concrete on your property.
Learn more about our concrete repair services →Commercial Waterproofing
Elastomeric coatings, membrane systems, and penetrating sealers for the full building envelope. Parking deck waterproofing is one component of comprehensive moisture protection for Sherman's commercial and industrial facilities.
See our waterproofing capabilities →Commercial Caulking & Sealant
Failed perimeter sealants, penetration seals, and wall-to-deck transitions in parking structures are addressed alongside structural repairs — eliminating all water entry points in a single mobilization to minimize disruption to Sherman operations.
Explore our caulking and sealant services →Protect Your Sherman Parking Structure
Whether you manage a downtown historic parking structure, an institutional facility at Austin College or Wilson N. Jones, or a new industrial campus at Progress Park — we'll assess your structure and provide a detailed scope of repair.