Since 2001, D2 ENGINEERING, has successfully completed over 3000 projects for commercial, office tenant, medical, institutional, data centers, mission critical 24/7, government, multi-family high-rises, hotels and recreational facilities.
Donegan Engineering Inc, was started in 1989 by James T. Donegan, P.E. Superior Engineers, Inc. was founded in 1996 by Sam Davati, P.E. The two companies merged in 2001 and formed D2 Engineering, LLC. The company provides mechanical, electrical, and plumbing design services to a wide variety of commercial clients, primarily in the Washington DC area.
- Principals are both professional engineers all with more than 25 years of experience in the field.
- Specializing in Design and Construction Services for Commercial, Medical and Institutional Facilities.
D2 ENGINEERING is gaining in stature as a respected engineering design company through sustained relationships with our existing clients and creating relationships with new clients.
On the left is Terry Donegan on the right is Sam Davati
Delivering high quality, professional engineering design and construction services.
Mission Critical - consulting services to complete design and construction services; to build a facility from the ground up.
Solutions that are practical, effective, and proven as well as ideas that are well-honed to the business challenges our clients face
Mechanical/Plumbing systems design and coordination with Architect & Civil Engineer.
Electrical design and coordination with Architect and all other disciplines. SEE MORE NOW!
Mr. Donegan has more than 30 years expereince designing and implementing Heating, Ventilating, and Air Conditioning systems, control systems, and energy conservation measures for commercial, industrial, and Mission Critical projects.
Mr. Davati has over 28 years in Power Distribution and Lighting Systems. Mr. Davati's experience has focused on designing electrical power distribution
Mr.Gabri has a wide variety in excess of 22 years of experience in the building industry markets as a plumbing engineer (CPD).
Mr. Lohr over 38 years of field experience to the D2 Engineering Team. Fred started his career in the HVAC Mechanical trades industry in 1981.
Two years of engineering experience. He graduated from University of Maryland, at College Park, MD. He has experience in commercial, medical, and residential projects.
D2 ENGINEERING is an experienced engineering design company providing superior engineering design, construction services, and commissioning for new construction, renovations, mission critical and tenant fit outs.
D2 ENGINEERING offers a vast knowledge of design and expertise in commercial facilities. We focus on providing for our client the quality performance achieved in a cost effective and timely manner. The principals and key personnel of D2 ENGINEERING are experienced in mechanical, electrical, and plumbing systems. The principals have over 25 years of experience.