SonTek Total Care Customer Service

Committed to Providing the Highest Level of Support for our Customers 24 Hours a Day, 7 Days a Week

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Contact Us

Committed to Delivering Superior Service

SonTek is committed to delivering superior service to our customers, and we are always an email or phone call away. To receive additional product information, get a price quote, or get good advice from one of our knowledgeable Application Specialists, contact us at our San Diego Center of Excellence. Or, if you would prefer to work with a local representative, try out our interactive global map below to find an authorized dealer near you.

contact sontek

SonTek - A Xylem Brand

San Diego Center of Exellence

9940 Summers Ridge Road
San Diego, CA 92121-3091 USA.
Telephone: +1 (858) 546-8327
Fax: +1 (858) 546-8150

email inquiries

Need to report a problem? Maybe you have a general question regarding your SonTek system. We realize that issues often arise at the most inopportune times, and we are committed to providing our customers with the highest level of support 24 hours a day, seven days a week.

If you need emergency help in the field, call us at +1-858-546-8327. If it is outside our regular business hours, follow the instructions to be connected to one of our on-call support staff, who will be happy to help. If you are not experiencing an in-field emergency, we encourage you to send us a question by clicking the "Contact Support" button below. One of our Customer Support Specialists will respond within 24 hours.

Finally, whenever you contact SonTek, please be sure to include the serial number of your system. That will help us get to your customer records faster and give you the timely response you need.

technical support

Technical Support

Quick Answers When You Need Help

Our Technical Engineers are a click or phone call away. If you're having a challenge in the field or have questions about your instrumentation, we're here to help! However, if you are providing attachments, please email us at

Technical Support

SonTek - A Xylem Brand

Get a Status Update in Seconds!

This is the place to start if you need a status report on a repair or calibration you recently sent in. Click through to get the latest information on where your instrument stands in the queue and when you can expect the repair process to be completed.

repair status

International Service Centers

Find a Convenient SonTek Total Care Service Center Near You!

9940 Summers Ridge Road
San Diego, CA 92121
+1 (858) 546-8327

Clean Environment Brazil
Engenharia E Comercio Ltda

Rua Antônio Lapa
214 - Cambuí
Campinas - SP
+55 19 3794-2900

EVARSA - Evaluación de Recursos SA
San Martin 161
(8324) Cipolletti
Río Negro
+54(299) 477 2091/1843

Xylem Analytics UK Ltd
Unit 2 Focal Point
Lacerta Court, Works Road
Letchworth, Herts, SG6 1FJ
+44 1462 573581

YSI (Beijing) Limited
Room 101, Unit 2 of Building 18
Huilongsen Technology Park, No. 99
Kechuang 14th Street
Beijing 101111
+86-010-5975 5687

Xylem Analytics Australia
Unit 4
65 Riverside Place
Morningside, QLD 4170
+61 7 3162 1064