Shadrock & Williams Masonry

What Shadrock & Williams Masonry does

Shadrock & Williams Masonry, LTD. is a privately held, family-owned specialty masonry subcontractor founded in 1968 in San Antonio, Texas, and headquartered in Helotes, Texas. The company operates as a specialty trade contractor delivering masonry and wall cladding services on large-scale commercial construction projects valued between $1M and $40M, working under general contractors on civic, educational, healthcare, government, and hospitality builds. Its service portfolio spans four core pillars: structural and architectural masonry (CMU, brick, stone, cast stone, specialty architectural block); claddings and rainscreen systems (terra-cotta, natural stone panels, porcelain cladding, FRP panels, and Öko Skin fiber concrete slat panels); historic preservation, restoration, and adaptive reuse; and waterproofing and envelope integration (air/water barriers, joint sealants, through-wall flashing, below-grade waterproofing, rainscreen coordination). The company also offers design-build assist, masonry consulting and forensic repairs, temporary structures, and specialty installations.

The business serves institutional end-clients indirectly via general contractor relationships, with a marquee project base that includes the FBI Headquarters San Antonio, the United States Courthouse San Antonio, Paul Elizondo Tower (LEED Silver certified), UTSA Science & Engineering Building, Vanderbilt Residential College Phase C in Nashville, Texas A&M San Antonio, Texas Southern University Library & Learning Center, Fort Bliss Hospital Replacement, J.W. Marriott Hill Country Resort, and the Tobin Center for the Performing Arts. The company employs 251-500 people across its Helotes headquarters and a regional office in El Paso managed by Ozzie Gonzalez, and operates primarily in Texas with selective national reach for large institutional projects. Pricing is project-based with no public list rates, and revenue is generated on a one-time project basis per contract.

Under the hood, Shadrock & Williams' "technology" is its craft capability stack — specialized installation techniques spanning traditional load-bearing masonry through modern open-joint ventilated rainscreen assemblies — backed by 57+ years of institutional relationships, multiple Golden Trowel Awards from regional and national masonry associations, and a third-generation family leadership structure that emphasizes craftsmanship, safety, and skilled-trades talent retention. The company has no AI/ML or software product surface; its differentiation rests entirely on physical craftsmanship, materials expertise, and the ability to coordinate complex building-envelope systems on technically demanding institutional projects.

Name

Shadrock & Williams Masonry

Legal name

Shadrock & Williams Masonry, LTD.

Website

https://shadrockwilliams.com

Company type

Private

Founded year

1968

Operating status

Operating

Headcount range

251–500 employees

Short description

Shadrock & Williams Masonry is a Texas-based, family-owned specialty masonry subcontractor (founded 1968) delivering masonry, cladding, rainscreen, restoration, and waterproofing services on $1M-$40M commercial projects for government, education, healthcare, and hospitality end-clients via general contractors.

Ownership category

akta.pro rank

Product category

Masonry Construction Services

NAICS

Masonry Contractors (238140), Masonry Contractors (23814)

SIC

Construction - Special Trade Contractors (1700)

akta.pro primary industry

Stonework & Masonry (Stone Veneer, Brick, Block) (HSAIACAI)

akta.pro secondary industries

Chimney, Parapet & Roofline Masonry Repair (HSAPAKAL), Roof Flashing, Vent & Penetration Repair (Chimney/Skylight/Pipe Boots) (HSAGAKAF), Masonry Prefabricated Elements (Panels, Lintels, Sills) (IMADABAM)

Keywords

• Masonry construction services
• Wall cladding systems
• Rainscreen installation
• Historic masonry restoration
• Building envelope waterproofing

Headquarters

HQ city

Helotes

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales, Technology or R&D

Revenue model

1. Masonry Subcontracting: Revenue is generated through subcontracting masonry and wall cladding services on large-scale commercial construction projects. Projects range from $1M to $40M in value. The company serves as a specialty subcontractor providing masonry, cladding, restoration, and waterproofing services to general contractors on civic, educational, healthcare, government, and hospitality projects.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Shadrock & Williams Masonry is a B2B specialty subcontractor that delivers masonry construction, cladding and rainscreen systems, historic restoration and renovation, and waterproofing and building-envelope integration for large-scale commercial construction projects (typically $1M–$40M). The firm works as a subcontractor to general contractors on civic, educational, healthcare, government, and hospitality projects across Texas and selectively nationally.

Product overview

Shadrock & Williams Masonry is a masonry and wall cladding subcontractor specializing in large-scale, highly technical commercial construction projects. Their service portfolio centers on four core offerings: Masonry services (structural masonry, brickwork, stone masonry, cast stone, and specialty architectural block); Claddings & Rainscreen Systems (terra-cotta panels, natural stone panels, porcelain cladding, FRP panels, and Öko Skin fiber concrete panels); Restoration & Renovation (historic preservation, facade repairs, cleaning and sealing, masonry stabilization, adaptive reuse, and historic salvaging); and Waterproofing & Envelope Integration (air/water barriers, joint sealants, through-wall flashing, below-grade waterproofing, and rainscreen integration). Additionally, they offer expanded capabilities including design-build assist, masonry consulting and forensic repairs, temporary structures, monument placement, and skate stop design. The company operates primarily in Texas with regional and national reach for large-scale projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Masonry Services Structural masonry (CMU, reinforced masonry, load-bearing systems), brickwork, stone masonry, cast stone, and specialty architectural block (split-face, burnished, glazed) for commercial and institutional buildings.
• Claddings & Rainscreen Systems Installation of terra-cotta panels (open-joint ventilated and hybrid systems), natural stone panels, porcelain cladding, FRP (fiber reinforced polymer) panels, and Öko Skin fiber concrete slat panels for modern building envelopes.
• Historic Preservation & Restoration Certified restoration techniques for landmark structures including façade repairs, cleaning, sealing, masonry stabilization (shoring, pinning, anchoring), adaptive reuse, and historic salvaging and reinstallation of original masonry elements.
• Waterproofing & Envelope Integration Building envelope protection services including air and water barriers (sheet-applied and fluid-applied membranes), joint sealants and expansion joints, through-wall flashing systems, below-grade waterproofing, and rainscreen integration coordination (ventilation cavity design, flashing, insulation compatibility).
• Design-Build Assist and Masonry Consulting Early-stage collaboration services to optimize constructability, schedule, and cost efficiency, plus troubleshooting, forensic repair analysis, and remediation planning for problematic masonry conditions.
• Specialty Masonry Services Specialty offerings including temporary structures (safe enclosures and bracing), monument placement and relocation (precision handling and resetting of significant masonry structures), and skate stop design and installation (custom anti-skateboarding solutions for public spaces).

Quantifiable outcome

• Projects completed ranging from $1M to $40M in value
• +2 more outcomes

Named customers11 records

Segments4 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Dee Brown Masonry: Texas-headquartered (DFW) commercial masonry contractor serving institutional and large-scale building projects across the Southwest. Directly comparable in vertical mix, scope sizes, and Texas institutional customer base.
• Heldenfels Enterprises: San Antonio-area masonry, precast, and structural concrete contractor with Texas institutional and commercial project experience. Comparable in regional footprint, scope scale, and structural/exterior building services overlap.
• Western Specialty Contractors: National building envelope and masonry restoration contractor with dedicated historic preservation, waterproofing, and facade repair practices. Comparable through overlapping restoration, waterproofing, and specialty-cladding capabilities at scale.
• John W. Smith Masonry: Commercial masonry contractor with deep experience across institutional and commercial projects. Comparable in project-type mix (civic, educational, healthcare) and traditional/structural masonry scoping.
• Brazos Masonry: Texas-based masonry contractor executing commercial and institutional projects. Comparable in geographic base, project-size profile, and subcontracting relationship model.

Broad incumbents

• Wiss, Janney, Elstner Associates: National engineering and architectural consulting firm specializing in structural and envelope investigation, restoration design, and forensic repair. Adjacent rather than directly competitive — relevant comparable for evaluating Shadrock & Williams' restoration/forensic capability positioning.

Emerging players

• EverGreene Architectural Arts: Specialty restoration and ornamental architecture contractor with national landmark restoration practice. Comparable in historic preservation capability and ability to execute complex institutional/cultural renovation scopes, though with a more decorative-arts orientation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/shadrockmasonry

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Shadrock & Williams Masonry