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For Inquiries Call (540) 265-4444
Our Mission is to continue to build our reputation of offering the highest professional standards in the delivery of engineering services. Our goal is to continue to be the best in the state so that our clients will continue to say:

"These are the best Professional Engineers in the business."

Obenchain, Linkous, Daniels & Sowick specializes in engineering design and commissioning services of Mechanical, Electrical, Plumbing, Fire Protection and Information Technology Systems for K-12 educational facilities, higher educational facilities of all types, health care facilities, commercial buildings, retirement facilities and local governments. O.L.D.S. provides these planning, design and commissioning services to Owners, architects and other engineers.

These services include producing the following: plans, specifications, investigations, studies, reports, energy analysis and construction administration. O.L.D.S. has no financial interests in the construction industry, or the manufacturing or sale of equipment. For new construction or renovation type projects, we provide all of the engineering necessary for the satisfactory design, installation and operation of the mechanical and electrical systems. O.L.D.S. is an Equal Opportunity Employer.

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What our clients Say

I must say that O.L.D.S. made a great set of HVAC drawings. In my 22 years of working, I can't remember seeing an HVAC set that was so easy to follow. Most companies don't take the time to get it this organized.
Gary E., P.E., Fairfax, VA