Mission
Mission
Mission
GM
I am driven by a deep commitment to leaving the world better than I found it, by striving to make a lasting impact on the built environment. It has been my life’s work to improve not only the world we live in today but also the one future generations will inherit. This focus is embodied in my commitment to advancing construction initiatives that not only maximize returns on capital investments but also contribute to the enduring vitality of our shared environment. With a robust background in building diagnostics, forensic analysis, property inspection, construction estimation, and project management, I approach every endeavor with purpose and dedication. Having successfully managed over 500+ projects in the Greater Chicagoland area, I take pride in delivering results within 1% of budget, applying value engineering, technical expertise, and a relentless focus on quality assurance. However, what inspires me is fostering strong, lasting Client relationships and creating collaborative environments where teams align around a shared vision, purpose, and goals. Through optimizing performance metrics that deliver both tactical and technical benefits, I am committed to ensuring the long-term success of each project, exceeding client expectations and transforming complex challenges into high-quality outcomes that make a significant and meaningful difference.
Gregory Mahan
Gregory M. Mahan
630.209.0317
Work Experience
Structural Technologies
01/2013 - Present
Strategic Construction Operations Leader
Dynamic construction operations leader with 15+ years of experience managing complex, multi-site projects. Skilled in applying technical expertise and innovative solutions to improve project delivery, drive efficiency, and align with strategic goals. Committed to optimizing processes, ensuring high-quality outcomes, and fostering collaboration through data-driven approaches to overcome challenges and achieve excellence.
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Construction Diagnostics & Feasibility Expert
Led building diagnostics, in-situ forensic inspections, material depreciation modeling, and financial feasibility reporting for over $100 million in projects. Oversaw construction estimation, project specification, development, contractor network management, bid procurement, and end-to-end construction management to ensure precise, cost-effective execution and high-quality outcomes.
Structural Technologies
01/2013 - Present
Project Execution & Risk Mitigation Specialist
Applied advanced technical expertise to guide clients from needs identification through project execution, achieving a 100% success rate on 500+ projects delivered within 1% of budget. Completed over 2,000 Property Condition Assessments (PCAs), Facility Condition Assessments (FCAs), and feasibility studies, delivering critical insights and actionable recommendations. This process-driven approach ensured precise planning, and risk mitigation, and ensured high-quality outcomes on complex, multi-disciplinary construction initiatives.
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Results-Driven Operations Leader
Efficiently managed 15+ construction sites concurrently across the Greater Chicagoland area each month, overseeing a workforce of upwards of 150+ contractors and sub-contractors to document scope, track progress, and ensure outcomes met or exceeded key performance indicators and deliverables.
Structural Technologies
01/2013 - Present
Operational Efficiency & Project Management
Spearheaded efficiency initiatives by developing KPIs and strategic organizational frameworks to drive project success and streamline operations. Directed multidisciplinary teams to evaluate construction progress, assess timeline adherence, and implement corrective measures when projects veered off track. Leveraged established relationships with Contractors and Material Manufacturer suppliers to foster collaboration, source innovative solutions, and negotiate favorable terms which minimized delays and cost overruns. Reallocated resources dynamically, optimizing labor and material usage while maintaining high-quality outcomes. Collaborated with project stakeholders and contractors to address complex challenges, ensuring compliance with quality control standards while delivering projects within scope and budget constraints. Demonstrated adaptability and technical expertise to consistently achieve excellence in project execution.​​
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Construction Operations & Scheduling Optimization
Coordinated material delivery and project scheduling with contractors and subcontractors, ensuring seamless integration across multiple sites. Led efficiency initiatives to optimize operations, including the development of proprietary project management software to automate key processes such as real-time material tracking and schedule management.
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Project Management & Quality Assurance
Executed on-site project management and quality control inspections to rigorously verify that material installations adhered to exacting specifications and quality control standards. Pioneered innovative project management strategies, including remote viewing technologies, to coordinate trades and enable real-time oversight. These advancements enhanced communication, accelerated accurate progress tracking, and expedited issue identification and resolution, ensuring installations consistently met quality control standards, system output objectives, and project requirements. Reduced monthly management costs, travel expenses, and overhead by an estimated 75%, driving increased profit margins.
JSL Construction
01/2008 - 01/2013
Works Completed
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The Condominiums at Northbrook
Scope: Plaza Deck & Concrete Restoration
Budget: $2,290,000.00
Realized Cost: $2,143,386.00
Cost Savings: $146,614.000
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Client Feedback:
As a Community Association Manager of three (3) high-rise buildings in Illinois. My client hired Greg Mahan of Structural Technologies Inc., to provide building solution services for two (2) multi-million dollar parking garage & deck plaza restoration projects. My client and I had a positive working experience with STI and wouldn’t hesitate to recommend him for future project work opportunities.
Lake Point Tower
Scope: Roof Replacement Program
Budget: $1,176,000.00
Realized Cost: $1,247,600.00
Delta: > 6% of Budget with 5% Accounted for Under Margin of Error
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Client Feedback:
Lake Point Tower recently replaced a $1.2 million dollar roof under Greg Mahan's supervision. I would strongly recommend Greg. He worked well with me throughout the project and the Board was very comfortable with his expertise.
Shoreline Towers COA
Scope: Balcony Restoration Program
Budget: $774,002.00
Realized Cost: $683,875.00
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Client Feedback:
Greg Mahan of Structural Technologies provided valuable expertise for our multi-year balcony restoration project, overseeing scoping, quality assurance, and inspections. His objective approach and thoroughness have been instrumental, making him an excellent choice for anyone tackling complex construction challenges.
Anthony Geanopoulos
Adovacte Christ Hospital
Due to Greg Mahan of Structural Technologies, Inc. exceptional attention to detail, I have completed upward of 95% of all major projects within budget and with no change orders or unforeseen costs. I have managed our exterior building envelope since 2009 on a facilities condition study and condition report conducted by Greg Mahan of Structural Technologies, Inc. He was able to provide me with a comprehensive report that allowed me to present my plan with the necessary documentation for funding. I have recommended Structural Technologies to my eleven sister hospitals and would recommend them to any facility seeking a high-quality evaluation or restoration consulting firm.”
Paul Dawson
Elgin Community College
As the Managing Director of Construction and previous Managing Director of Facilities at Elgin Community College, it has been my responsibility to maintain and restore multiple structures that comprise our campus. During that tenure, Greg Mahan of Structural Technologies has provided us with consulting services which has provided a comprehensive approach to managing the campus roofs and exterior walls, and has worked with us to develop restoration budgets, provide specifications for projects, and job site supervision after projects were awarded. One of our best tools, when we went for referendum funding was their roof condition study to prioritize which areas were in need of immediate repair and which ones only had a few years left under warranty. This helped us press the need for critical maintenance. Moreover, Greg Mahan of Structural Technologies helped us work with the Illinois Capital Development Board foundered projects and coordinated with architects to complete the necessary projects. These have been our largest roofing contracts during my 22 years on campus and were accomplished under strict state rules for both bidding and specifications. Structural Technologies helped the college to push for roofing systems that kept the problems with odor and noise to a minimum while providing state-of-the-art roofing solutions.
Contractors
Our company has worked with Greg Mahan at Structural Technologies numerous times over the years. Each project has been a success from all perspectives. When we're hired to perform work under Structural Technologies superviosion, we know they will perform their role overseeing our work even handedly, and that the ultimate customer will be satisfied. We look forward to our next project with them!
For several years we have had the opportunity to work with Greg Mahan of Structural Technologies on condominiums, town-homes, high rises, and commercial and governmental properties. Their team is very knowledgeable and they always keep the customers' best interest in mind. We recommend Structural Technologies for both large-scale and small-scale projects.
Joe Cairo
CSR Roofing
John Schultz
Clark Roofing
I've worked with Greg Mahan from Structural Technologies for years now and , he is a very professional and knowledgable consultant. I highly suggest working with them as I look forward to the next project I get to do so myself.
Testimonials
HARD SKILLS
tECHNOLOGY
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Custom Software Design
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Salesforce
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HubSpot​
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PandaDoc
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DocuSign
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Canva
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Adobe Creative Cloud
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Microsoft 360
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AutoCad
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Quickbooks
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ProCore​​
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Microsoft Acess & SQL Server
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Microsoft Excel & Proprietary Estimation Software
Management
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Construction Estimation
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Project Design & Development
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Bid Procurement
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Contract Negotiations
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Contract Generation
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Value Engineering
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Construction Management
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Quality Control & Assurance
SOFT SKILLS
Creative Problem Solving and Innovation
Orchestrated the digitization of project management by developing custom software solutions and a CRM database, enabling the operations team to track client lifecycles, improve marketing, streamline proposals, and revolutionize construction oversight.
Time Management and Prioritization
Managed 15+ construction sites and 150+ personnel monthly, ensuring timely progress tracking, resource allocation, and KPI adherence. Developed software to automate processes, prioritize tasks, and streamline scheduling, enhancing both efficiency and effectiveness.
Adaptability
Demonstrated adaptability and critical decision-making in multi-year projects, supply chain disruptions, and material inflation by incorporating risk-adjusted inflation controls into contracts, minimizing financial impacts.
Collaboration and Teamwork
Collaborated effectively with cross-functional teams to navigate multi-year projects, challenging market conditions, and inflationary environments, while optimizing client ROI and delivering high-quality outcomes.
Digital Transformation
Automated Solutions
During my tenure at Structural Technologies, I developed a suite of customized web service solutions to drive innovation, streamline operations, and enhance customer experience. During that time a key achievement was redesigning a client-facing website to simplify and accelerate the customer onboarding process. This initiative was supported through the redevelopment of a CRM platform and chatbot hosted on HubSpot. I further automated workflows by integrating Monday.com with HubSpot and PandaDoc through Zapier, allowing efficient tracking of client interactions, while providing personalized follow-ups, and real-time support. By automating routine tasks and client follow-ups, I improved communication transparency and reduced manual workload, increasing client satisfaction and loyalty. This strategic alignment of my technical capabilities with client-focused needs demonstrates my commitment to delivering long-term value and business performance through technology which is an asset I am eager to bring to future roles.
Virtual Oversight
Through implementing advanced remote viewing technologies, I addressed traditional construction oversight challenges with a forward-thinking and innovative approach. Recognizing the high costs and limitations of in-person supervision, I introduced a real-time monitoring system for installations that enabled seamless coordination across trades, allowing for rapid issue identification and resolution. This technology streamlined project management and delivered significant improvements to profitability, reducing managerial costs, travel expenses, and overhead by approximately 75%. This initiative exemplifies critical thinking and problem-solving in construction by leveraging technology to uphold high standards of quality and ensure client satisfaction. My focus on integrating remote viewing capabilities reflects a commitment to advancing technology in the construction industry, making project oversight more efficient, adaptable, and sustainable. This solution set a new standard for project monitoring and management, showcasing how innovative practices can enhance client outcomes and drive industry progress.
Smart Forecasting
​Spearheaded data-driven forecasting strategies that leveraged legacy cost data from bid-procurement processes to continuously automate and adjust performance metrics and material costs into existing databases for project estimation. This significantly enhanced project forecast accuracy for Facility Condition Assessments, Property Condition Assessments, Architectural Needs Analyses, Developer Transition Studies, Reserve Studies, and Project Feasibility Reports. Integrated risk-adjusted inflation metrics for both materials and labor, achieving precision within one standard deviation of realized costs for capital improvement projects and boosting reporting accuracy by an estimated 75% during my tenure at Structural Technologies. This data-driven system had a secondary effect of increasing client and contractor satisfaction by enabling real-time adaptation to evolving market conditions, especially amid supply chain disruptions. This strategic alignment of data analytics with financial forecasting supports initiative-taking cost management strategies, strengthens transparency, and empowers organizations to sustain profitability while navigating market volatility.
About Me.
I am a highly driven individual, dedicated to pursuing my passions with full commitment. This focus first led me to excel in football, earning a position on a Division I-AA team, where I started for three years and received all-conference honors. As I transitioned from athletics to my professional career, I channeled the same dedication into achieving excellence in my field and continuously advancing my skills and expertise.
Presently, my commitment is to making a lasting and positive impact on the built world. This commitment motivates me to improve not only our present environment but also what future generations will inherit. I specialize in advancing construction initiatives that maximize return on capital investment while contributing to the long-term vitality of our shared environment. Through my extensive expertise in building diagnostics, forensic analysis, property inspection, construction estimation, and project management, I bring purpose and precision to every project. ​
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Having successfully managed over 500+ projects across the Greater Chicagoland area, I’m proud to have maintained a track record of success within 1% of budget through leveraging value engineering, technical expertise, and a steadfast commitment to quality assurance. However, what truly inspires me, is fostering strong client relationships and creating collaborative environments based on shared vision and goals. Through innovating legacy systems and optimizing performance metrics that deliver tactical and technical benefits, I am committed to transforming complex challenges into high-quality outcomes that exceed expectations and make a meaningful difference.
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Education
Eastern Illinois University
01/2008 - 01/2012
Bachelor of Science in Business
NCAA Division 1AA Football Player - All-Conference
University of International Business and Economics (Beijing)
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Professional Affiliations & Continued Education
Roof Consultants Institute - Professional Member No. 43094
Registered Consultant Affiliate
Professional Member RCI & IIBEC
Member: CAI (Community Associations Institute)
ACTHA (Association of Condominiums, Townhomes & Homeowners Associations)
Member: CAI (Community Associations Institute)
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Continued Education
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Single-Ply Roofing Technology –
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Roof Wind Speeds and Uplift Rating -
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Polyiso Insulation in Low-Slope Roofing Applications -
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Paint 201 Practical Solutions and Problem-Solving Techniques –
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Exterior Building Maintenance and Window Cleaning Access
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Tapered Insulation Roof Systems
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Chicago Roofing Contractors Association – Roofing Industry Update – CRCA Education Session / Trade Show
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Research Roof Insulation Facers & Water-Based Adhesive
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R Values for Dummies – For Low & Steep Slope Roofing
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Ventilation, Low & Steep Sloped Roofs, and the DOE’s Current Programs
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Structural Lightweight Concrete and Roofs
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Marvin Windows & Doors – 5.0 CEU Facilities Tour & Training 00
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