Business Details
25 Years
experience
Emergency
services
Your Trusted Partner for Critical Power & Infrastructure Solutions
MDI has built a reputation as a trusted provider of critical power and infrastructure solutions, serving industries where downtime is not an option. With over 30 years of combined leadership experience, the company specializes in designing, building, and retrofitting mission-critical facilities, including data centers, switch rooms, and colocation facilities. Our team leverages deep expertise in electrical systems, telecommunications infrastructure, and sustainable design to deliver cost-effective, scalable solutions tailored to client needs. We serve financial institutions, healthcare providers, transportation networks, municipalities, and other entities that require uninterrupted operations. Our approach combines technical precision with a commitment to understanding each client's unique priorities, ensuring systems are optimized for reliability, efficiency, and long-term adaptability.MDI maintains strong relationships with leading equipment manufacturers, enabling independent, informed procurement decisions that align with project budgets and schedules. As a single-source provider, we integrate design, construction, and maintenance services to streamline project execution. Our focus on innovation extends to alternative energy solutions, reflecting our dedication to sustainable infrastructure practices. From large-scale ground-up builds to retrofitting legacy systems, MDI delivers stability for industries that cannot afford interruptions. Our leadership team brings decades of hands-on technical and managerial experience, ensuring clients benefit from proven expertise in mission-critical environments.
Services
Data Center Design
Critical Power Systems
Infrastructure Retrofitting
Equipment Procurement
Maintenance Agreements
Alternative Energy Integration
Facility Commissioning
Details
- Year established: 2001
Highlights and features
- We offer 30+ years of specialized experience in mission-critical infrastructure solutions.
- Our team includes LEED-certified architects and licensed professionals with technical industry expertise.
- We provide vendor-neutral equipment procurement prioritizing client-specific operational needs.
- We maintain N+1 redundancy systems for guaranteed power availability in critical environments.
- Our leadership team has executed over 2 million square feet of data center projects nationwide.
Associations and certifications
- LEED
Services
Data Center Design/Build
This service provides comprehensive design and construction for mission-critical data centers. We deliver scalable, energy-efficient facilities featuring N+1 redundancy systems for power and cooling. Our team manages projects from site selection through commissioning, ensuring compliance with industry standards and client-specific operational requirements for 24/7 uptime.
Critical Power Systems
We design and install redundant power systems for facilities requiring uninterrupted operations. This includes uninterruptible power supply (UPS) systems, battery backups, generators, and static switches. Our solutions ensure power quality stability to protect sensitive equipment across financial, healthcare, and public safety sectors with 99.999% reliability benchmarks.
Equipment Procurement
As a manufacturer-neutral provider, we source optimal power infrastructure equipment. Services cover UPS systems, power distribution units, surge protection, and telecom DC plants. We evaluate technical specifications against client needs, ensuring cost-effective purchases from multiple qualified vendors while maintaining system compatibility and future scalability for evolving infrastructure requirements.
Maintenance Agreements
We offer comprehensive maintenance programs for critical power systems including preventive, corrective, and predictive service options. Our plans cover UPS systems, battery banks, generators, and power distribution equipment across mission-critical facilities. Service includes 24/7 emergency response, scheduled inspections, and performance optimization to minimize downtime risks and extend equipment lifecycles.
Alternative Energy Integration
This service incorporates renewable energy systems into critical infrastructure projects. We design and implement solar power integration, energy storage solutions, and wind energy partnerships. Our LEED-certified professionals ensure alternative energy systems work seamlessly with traditional power infrastructure to reduce carbon footprint while maintaining reliability in mission-critical environments.
People
Robert Heiderscheidt
President and CEO
27-year electrical industry veteran with telecommunications infrastructure expertise. Founded MDI Electrical Construction (1992) and MDI (2001). Directs company expansion and major data center projects after completing IBEW apprenticeship and holding NECA leadership roles.
Mark Untiedt
Chief Operating Officer
LEED-certified architect with 18 years construction management experience. Specializes in mission-critical facilities execution. Previously worked with Cubellis and Carlson, managing projects for major telecom clients. Oversees operational efficiency at MDI while maintaining sustainable design practices.
Christopher Krestel
Chief Business Development Officer
Licensed architect and project manager with decade of experience leading multi-disciplinary teams across North America. Expert in Building Information Modeling implementation and energy-efficient design solutions. Brings BIM expertise from Cubellis & Loebl Schlossman & Hackl to MDI projects.
John Heiderscheidt
Chief Compliance Officer
Licensed attorney and telecom real estate broker ensuring regulatory compliance across jurisdictions. Manages legal documentation and data center site acquisitions. Represents MDI in cryptocurrency hosting arrangements while maintaining legal standards for infrastructure projects.
Bob Matthews
Vice President of Sales
42-year veteran of mission-critical applications sales with Fortune 500 project expertise. Technical sales consultant managing risk assessment and project delivery. Brings extensive industry contacts and operational leadership experience to MDI sales operations.
Questions
What types of facilities does MDI Access specialize in?
We design, build, and retrofit data centers, switch rooms, colocation facilities, and critical infrastructure systems requiring uninterrupted power solutions.
How experienced is MDI Access in critical power systems?
Our leadership team has over 30 combined years of experience, delivering 2+ million square feet of mission-critical infrastructure projects nationwide.
Do you offer maintenance agreements for installed systems?
Yes, we provide comprehensive maintenance agreements to ensure ongoing reliability and performance of your critical power infrastructure.
Are your solutions energy-efficient?
We integrate LEED-certified practices and alternative energy technologies to create sustainable, energy-efficient infrastructure solutions.
How do you approach equipment procurement for projects?
We act as vendor-neutral consultants, selecting optimal components from multiple manufacturers to meet your technical needs and budget.
Can MDI Access handle large-scale data center projects?
Yes, we've successfully completed colocation facilities up to 68,000 square feet with 2.5-4 MW critical power capacity.
