WHO WE ARE
Seal Engineering, Inc.’s professional staff consists of civil and structural engineers. Professional engineers are registered to practice in the Commonwealth of Virginia, Maryland, the District of Columbia, and West Virginia. All staff engineers are trained, experienced and licensed to operate laboratory and nondestructive materials testing equipment.
We pride ourselves on careful and thorough investigations and reports. Our recommendations and designs emphasize maintenance and repair whenever possible to maximize the service life of the building envelope. We recommend replacement only when it is clearly the most practical and economical alternative. Our engineering services have proven successful in the bidding process, where our sound, clear and practical designs and bid packages have obtained truly competitive bids. For special assistance beyond our capabilities, we work closely with several architectural and engineering firms, materials consultants and testing laboratories.
QUALITY CONTROL/ ASSURANCE
Our rigorous internal quality control/assurance program ensures coordinated and technically accurate reports, plans, designs, specifications and construction cost estimates. Work performed by our engineering designers and consultants is carefully reviewed by our Quality Control Principal, David DiQuollo.
Commonwealth of Virginia SWaM Certified Small Business
David A. Fyffe, P.E.
- Bachelor of Science, Civil Engineering, 1984
- Clarkson University, Potsdam, New York
- 1992/Civil Engineering PE ‑ VA #024165
- 1992/Civil Engineering PE – DC #907371
- 2005/Civil Engineering PE ‑ MD #31665
- 2005/Civil Engineering PE – WV #16421
Mr. Fyffe is familiar with a wide variety of building envelope systems and components, and has provided services for federal, state and local clients in the Washington, DC Metro area. Many of the projects executed by Dave have been on occupied structures of historic importance, a factor that was carefully considered in the repair and replacement design programs implemented. He is responsible for creating and reviewing evaluation reports, cost estimates, design drawings, plans, specifications, bid packages, contract documents, and observation reports. In addition, he serves as a personnel manager for the company; overseeing the allocation of resources to ensure capacity to meet contract commitments.
David J. DiQuollo, P.E.
- Bachelor of Science, Civil Engineering, 1987
- Virginia Polytechnic Institute & State University, Blacksburg, Virginia
- 1992/Civil Engineering PE ‑ VA #0402022871
- 2016/Civil Engineering – PE MD #50198
- 2016/Civil Engineering – PE DC #908837
Mr. DiQuollo is familiar with a wide variety of building envelope systems and components, and has conducted field investigations for federal, state and local government agencies, school systems, universities, commercial owners, churches and condominium associations. He serves as a quality control principal and oversees functions of project managers and engineers. He is responsible for managing, reviewing and preparing evaluation reports, cost estimates, design drawings, plans and specifications, with a particular emphasis on programmed maintenance, repair and replacement. David serves as QA/QC for the company.
Joseph Schettino, LEED AP
Sam Zalok, P.E.
Christopher Dowling, P.E.
Stephen Ingram, EIT
David Krekelberg, EIT
Jr. Project Engineer
PROFESSIONAL MEMBERSHIPS AND SPECIALIZED TRAINING
Member, Air Barrier Association of America
Member, American Society of Civil Engineers
Member, American Society of Testing and Materials
Member, Construction Specifications Institute
Member, Association for Preservation Technology
Member, American Concrete Institute
Member, International Concrete Repair Institute
Member, National Roofing Contractors Association
Member, National Trust for Historic Preservation
Member, Roof Consultants Institute
Operators (All Engineers)