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Expert Specialty Construction Contracting Services
Cornerstone Services Group has been a leader in specialty contracting for over 50 years, delivering exceptional value through innovation, performance, safety, and service. As part of the Irex Contracting Group network, we combine decades of industry expertise with cutting-edge technology to serve commercial and industrial clients nationwide. Our team specializes in mechanical insulation, abatement/remediation, firestop systems, scaffolding, and energy assessments, maintaining an unwavering commitment to quality and safety on every project. With operations across the United States and Canada, we provide comprehensive solutions for challenging environments including power plants, healthcare facilities, and industrial complexes. Our ISO 9001-certified quality control program ensures consistent excellence, while our patented Smart Jacket technology demonstrates our commitment to innovation.

Through strategic partnerships and a vertically integrated approach, we deliver cost-efficient, code-compliant results that protect both personnel and investments. Our experienced professionals hold certifications in infrared thermography, energy appraisal, and LEED standards, ensuring technical excellence across all service lines. With multiple safety excellence award recognitions, we maintain one of the industry's best safety records through rigorous training and proactive risk management. Our client-centric philosophy focuses on long-term relationships, evidenced by decades-long partnerships with major industrial clients. From project estimation to execution, our proprietary software solutions enable precise scheduling and production tracking, guaranteeing timely delivery without compromising quality.
Services
Asbestos Abatement Mold Remediation Mechanical Insulation Firestop Systems Scaffolding Energy Assessments Lead Abatement Noise Control Industrial Coatings Smart Monitoring
Highlights and features
  • We offer 50+ years of combined experience through the Irex Contracting Group network
  • Our team holds ISO 9001 certification for quality management systems
  • We maintain an exemplary safety record with multiple annual safety excellence awards
  • We provide comprehensive single-source solutions for complex industrial environments
  • Our patented Smart Jacket technology combines insulation with real-time monitoring
Associations and certifications
  • ISO 9001
Services
Asbestos Abatement
Our certified professionals deliver comprehensive asbestos abatement solutions for commercial and industrial clients. Utilizing state-of-the-art containment systems and HEPA filtration equipment, we safely remove and dispose of hazardous materials while maintaining strict regulatory compliance. Our technicians hold specialized certifications and follow OSHA-mandated protocols to ensure worker safety and environmental protection during all phases of remediation.
Mechanical Insulation
We provide energy-efficient mechanical insulation systems for industrial and commercial facilities. Our solutions include cryogenic insulation, removable blankets, and acoustic panels that reduce energy loss and control condensation. With BPI-certified energy auditors, we optimize thermal performance while meeting fire safety and regulatory requirements for piping, ductwork, and HVAC systems.
Firestop Systems
Our UL-classified firestop installations protect building integrity through tested systems for pipe, duct, and cable penetrations. We specialize in perimeter fire containment, curtain wall insulation, and joint sealing that meets ASTM E814 standards. Our certified applicators ensure code compliance for both new construction and retrofit projects across multiple industries.
Scaffolding
We design and install comprehensive scaffolding systems for industrial and commercial applications. Our OSHA-compliant solutions include system scaffolds, suspended platforms, and rolling towers with integrated fall protection. Using advanced material tracking software, we ensure timely delivery and safe execution for projects ranging from power plant maintenance to high-rise building repairs.
Energy Assessments
Our NIA-certified technicians perform detailed energy evaluations using infrared thermography and blower door testing. We identify heat loss points, air leakage, and insulation deficiencies in commercial buildings, providing actionable recommendations for improving energy efficiency. Our assessments quantify potential savings and help prioritize remediation efforts to optimize building performance.
Questions
What specialty contracting services do you offer?
We provide mechanical insulation, hazardous material abatement, firestop systems, scaffolding, and energy assessment services for commercial and industrial clients.
Which industries do you serve?
We specialize in power generation, healthcare facilities, manufacturing plants, data centers, and institutional buildings requiring specialty contracting solutions.
Are you ISO 9001 certified?
Yes, our quality management system is ISO 9001 certified with compliance to NQA-1 nuclear quality assurance standards.
Do you operate nationwide?
We serve all United States locations through our regional branches in St. Louis, Omaha, and Kansas City.
What safety certifications do your teams hold?
Our technicians maintain specialized safety certifications including OSHA 30, asbestos abatement licenses, and confined space entry training.
Can you handle emergency remediation projects?
While we don't offer 24/7 emergency services, we prioritize rapid response for critical remediation needs through our scheduled service teams.