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 90-day support period, we offer the following support options:

1) You can extend your Deluxe Support on an annual basis, and continue to receive free program updates and phone support as required.

2) If you prefer to purchase updates separately, consider the Prime Support plan, which provides unlimited toll-free technical support on an annual basis.

3) If you need telephone support on an occasional basis, we offer a pay-per-call option.

4) Finally, all customers are eligible for free email support and access to our on-line support resources. In most cases, these free resources will provide the most effective way to resolve your questions.

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.