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19 Years
experience
Your Trusted Masonry Partner in Boise, Idaho
TMC was established in 2007 by Tim McGourty, building on over four decades of combined industry experience. As one of Idaho's largest masonry contractors, we specialize in commercial and industrial projects, serving clients across the Pacific and Intermountain Northwest. Our team of 100 skilled tradesmen delivers large-scale projects exceeding $5 million while maintaining rigorous quality and safety standards. We hold licenses in Idaho, Oregon, Washington, Utah, Nevada, and Montana, enabling regional service capabilities. With expertise in historical building restoration, we have preserved landmarks like the Boise State Capitol and Old Boise State Penitentiary for over 30 years. Our investment in advanced envelope systems training ensures superior protection against water infiltration in high-rise construction.

TMC's acquisition of Northwest Precast in 1997 expanded our capabilities in architectural precast installation, where we maintain 35% utilization of their production capacity. Institutional clients including Boise State University and St. Luke's Hospital rely on our facility maintenance expertise. Our scaffolding infrastructure supports simultaneous large projects, and our workforce receives continuous training in evolving masonry techniques. This combination of scale, specialization, and sustained investment positions us as a trusted partner for complex masonry requirements.
Services
Commercial Masonry Historical Restoration Stone Veneer Installation Envelope Systems Architectural Precast Facility Maintenance High-Rise Masonry Water Infiltration Protection Precast Panel Erection Masonry Repairs
Details
  • Year established: 2007
Highlights and features
  • We have 40 years of combined masonry experience with regional licensing
  • Our 100 tradesmen execute $5M+ commercial projects annually
  • Specialized historical restoration expertise for registered landmarks
  • Invested in envelope systems training for water infiltration protection
  • Maintain facility maintenance contracts with major institutions
Services
Commercial Masonry
TMC executes large-scale commercial masonry projects exceeding $5 million annually. Our 100-person workforce combines advanced equipment with proven methodologies to meet aggressive timelines while maintaining quality standards. We specialize in complex assignments requiring specialized scaffolding infrastructure and simultaneous project execution capabilities.
Historical Restoration
With 30+ years of experience, we restore buildings listed on the Historical Register including the Boise State Capitol and Old Boise State Penitentiary. Our team employs traditional techniques combined with modern preservation methods to maintain structural integrity while meeting contemporary safety requirements for stone churches and government buildings.
Envelope Systems
Our envelope systems expertise protects buildings against water infiltration through advanced installation techniques. We focus on high-rise construction projects, providing specialized training for our workforce to ensure long-term structural integrity. This service includes comprehensive assessment and remediation of existing building envelope systems.
Architectural Precast
TMC installs 35% of production from Northwest Precast, our owned manufacturing facility established in 1997. We specialize in erecting precast panels and stairs using experienced personnel trained in precision installation techniques. Our capabilities include complex geometries and custom finishes for commercial applications.
Facility Maintenance
We provide ongoing maintenance for institutional clients including Boise State University and St. Luke's Hospital. Our services cover masonry repairs, cleaning, and preventive maintenance programs. With deep expertise in both modern and historic structures, we ensure long-term asset preservation through scheduled maintenance interventions.
People
Tim McGourty
Owner
Tim McGourty founded TMC in 2007, leveraging 40 years of masonry industry experience. He expanded operations through strategic acquisitions including Northwest Precast in 1997. Under his leadership, the company grew to employ 100 tradesmen while maintaining regional licensing across six states.
Questions
What masonry services do you specialize in?
We specialize in commercial/industrial masonry, historical restoration, envelope systems, architectural precast installation, and facility maintenance for institutional clients.
Which areas do you serve?
We operate across Idaho, Oregon, Washington, Utah, Nevada, and Montana with regional licensing and project capabilities.
How experienced is your team?
Our 100 tradesmen execute $5M+ projects annually with 30+ years of historical restoration experience and specialized envelope systems training.
What project sizes do you handle?
We manage projects of all sizes from small repairs to complex assignments exceeding $5 million with simultaneous multi-project capabilities.