Business Details
Engineering Solutions for Commercial & Industrial Projects
DJM Consulting Engineering delivers sustainable engineering solutions through a commitment to communication, collaboration, and principal-led project oversight. With decades of combined experience, our team specializes in mechanical, electrical, plumbing, fire protection, and photovoltaic engineering for commercial, retail, healthcare, educational, and industrial sectors. We prioritize client needs through early collaboration, integrated design teams, and nationwide licensure, ensuring projects meet evolving technical and environmental standards. Our services span construction administration, owner representation, BIM coordination, and building systems commissioning, supported by LEED-certified professionals and industry-specific expertise. By aligning innovative technologies with budgetary constraints, we create high-performance buildings that optimize occupant comfort and operational efficiency.Our leadership team, including President David J. Mantone and Vice President Leonidas Kopsaftis, brings deep sector knowledge from diverse projects like healthcare facilities, automated warehouses, and renewable energy systems. We maintain a client-centric approach with transparent communication and scalable solutions tailored to project complexity. Recognized for detailed engineering drawings and code compliance, we serve as a trusted partner for both one-time projects and long-term national programs. Our dedication to lifelong learning and sustainable design positions us as leaders in modern engineering challenges.
Services
Mechanical Engineering
Electrical Engineering
Plumbing Engineering
Fire Protection Design
Photovoltaic Engineering
Construction Administration
Owner Representation
Building Commissioning
BIM Services
Renewable Energy Systems
Highlights and features
- We provide principal-led project oversight from conceptual design through construction.
- Our team holds nationwide engineering licensure across multiple disciplines.
- We specialize in BIM coordination and photovoltaic system design for energy efficiency.
- Our engineers have decades of experience in healthcare, education, and industrial sectors.
- We offer scalable solutions for both one-time projects and national programs.
Associations and certifications
- U.S. Green Building Council
Services
Mechanical Engineering
Our mechanical engineering services design advanced HVAC systems, central plants, and energy recovery solutions for commercial and industrial buildings. We specialize in VRF systems, kitchen hood ventilation, and laboratory exhaust systems that balance occupant comfort with energy efficiency. Projects integrate seamlessly with architectural and construction teams to meet ASHRAE standards and local code requirements.
Photovoltaic Engineering
We provide comprehensive solar engineering for commercial properties, including rooftop, ground mount, and carport PV systems. Our services cover DC/AC design, interconnection studies, and feasibility analysis to maximize energy production while meeting NEC requirements. Expertise extends to utility-scale installations and military base solar projects.
Construction Administration
Our construction administration ensures design intent translates to field execution through submittal reviews, site visits, and coordination with contractors. Services include bid evaluation, punchlist reporting, and schedule tracking to maintain quality control and budget adherence across all project phases.
Building Commissioning
We verify building systems performance through third-party commissioning of MEP/FP systems. Services include new building commissioning, recommissioning of existing facilities, and witness testing of HVAC, electrical, and fire protection systems to ensure operational efficiency and occupant safety.
BIM Services
Our BIM team provides MEP/FP modeling and clash detection to streamline construction coordination. Services include 3D design documentation, system coordination, and integration with architectural and structural models to reduce field conflicts and improve project delivery timelines.
People
David J. Mantone
President
Managing owner with expertise in industrial facilities, healthcare, and renewable energy projects. Former project manager at three engineering firms, bringing 25+ years of experience in construction management and multidisciplinary design oversight.
Leonidas Kopsaftis
Vice President of Operations
Strategic leader focused on operational efficiency and team alignment. Specializes in pre-design planning, project lifecycle management, and overcoming construction challenges through proactive problem-solving and cross-functional coordination.
Lance B. Smith
Principal
LEED-certified engineer with 30+ years designing HVAC, plumbing, and fire protection systems. Expertise spans laboratory fume hoods, medical gas systems, and sustainable infrastructure across educational, healthcare, and industrial sectors.
Mark F. Howe
Mechanical Department Head
Former nuclear submarine engineer with 35+ years in mechanical systems design. Specializes in high-pressure steam plants, hospital HVAC, and campus infrastructure projects requiring complex piping and mission-critical system integration.
Kevin C. Higgins
Director of Solar Engineering
Solar design expert with nationwide NEC compliance experience. Manages large-scale photovoltaic projects for school districts and military bases, including DC/AC system design and interconnection coordination for rooftop and ground-mount installations.
Questions
What engineering services do you offer?
We provide mechanical, electrical, plumbing, fire protection, and photovoltaic engineering, plus construction administration, BIM services, and building commissioning for commercial and industrial projects.
Do you work on renewable energy projects?
Yes, we specialize in commercial solar engineering including rooftop, ground mount, and carport PV systems with NEC-compliant design and interconnection studies.
Are you licensed nationwide?
Our engineers hold professional licenses in all 50 states, enabling us to deliver projects across the United States.
What industries do you serve?
We work in healthcare, education, retail, hospitality, multi-family residential, and industrial sectors including automated fulfillment centers and food-grade warehousing.
How do you ensure project quality?
Through principal-led oversight, BIM coordination, and third-party commissioning to verify system performance and code compliance from design through construction.
Can you handle large-scale projects?
Yes, our team manages national programs with scalable solutions for infrastructure upgrades, new construction, and renewable energy deployments across multiple locations.
