Support Plans

HydroCAD^Ž Stormwater Modeling - Since 1986

About support

All new HydroCAD programs and major updates include 90 days of Deluxe Support at no additional charge. During this period you are entitled to unlimited toll-free support for all installation, operation, and modeling questions. Deluxe Support customers also receive a free copy of any updates that may be released during that time.

After the initial support period, we provide free email and web support for questions of any type.

For priority service, toll-free calling, or assistance with hydrology and engineering issues after 90 days, we recommend one of our premium support plans as listed on the support order form. For full details please see the PDF Support Brochure.

If you don't have a current support plan, hydrology and engineering assistance is available on a per-call basis as listed on the support order form.

Calling for support

Before you call:

Make sure you read the on-line help for the relevant HydroCAD screens. (Press F1 to view help at any screen.) Most questions are answered in the help screens.
Check the support page to see if your question is covered there.
Fax us a copy of the summary report for any node in question. (Fax 603-323-7467) This will save lots of time on the phone.
Or you can email the project file to
If you are not on a current support plan, please submit your payment information before you call.

When you call:

Have your HydroCAD version and serial number ready so we can quickly access your records.
Be at your computer so we can answer your question most efficiently.

Live support is normally available from 9-5 EST, Monday through Friday, except for Federal holidays:

For warranty or premium support call toll-free: 1-800-927-7246

All others call: 1-603-323-8666

You may also submit your question via Email

Please use this form to submit your question. All questions will be answered promptly during business hours. Email support may also be available after hours when the phone lines are not staffed.