Questions?
Call 240-355-4437
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We work at night when the opportunity for disruption to office
activities is minimized, and dispatch to the
worksite is quick. Your office will be back to work the next morning without additional loss in productivity. During
daylight hours and in
case of emergency,
we'll be there too.

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Services are not a guarantee of resolution of an issue, only that DES will put forth a best-effort to resolve the problem. If a service call goes beyond the 1st hour, we will provide an estimate of the additional time required to resolve the issue or recommend the most cost-effective action to resolve the issue. Upon resolution of the issue, DES will research methods of prevention against reoccurrence unless otherwise specified. Analysis of why an issue occurred can reduce or prevent future down time and service expense.

If the resolution of an issue is beyond DES' expertise, we will seek your authorization to obtain assistance of manufacturer-recommended support or a specialist at additional cost. During this process, DES will supervise the operation to resolution. In either case, 3rd party support will separately bill client for their services.

*Holidays:
New Year's Eve, New Year's Day, Memorial Day (Last Monday in May), Independence Day, Labor Day, Thanksgiving Day, Christmas Day

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