Become a Certified Service Technician

CST Certified Service Technician®

The APSP CST Certified Service Technician® program does not require that you meet work experience prerequisites, but, please understand, this course is much more in-depth than the Certified Maintenance Specialist® program. We recommend that you have at least 1-2 years of experience in pool/spa service and repair to expect to be successful on the certification exam.

The course is approximately 3½ days in length and the exam requires the ability to apply your technical knowledge to situations encountered in the field. As such, the CST program demands a level of technical knowledge that only comes with on-the-job experience. You do not need to have completed the CMS certification in order to attend this course and sit for the CST exam, but you will be expected to have acquired the core knowledge covered in that course. The exam for this course is a two-hour, open-book exam with 100 multiple-choice questions. You must score a 7%5 or better to pass. 

For those who are unable to attend an in-person training, this course is also available via correspondence.

This course is also recommended for those individuals interested in preparing to take the CSP Certified Service Professional® Exam as it is a thorough review of the APSP Service Tech Manual.

Target Audience

Experienced pool & spa service and repair technicians looking to focus and complete their skill set. 


To become certified as a CST Certified Service Technician®, you must participate in the CST course, based on the APSP Service Tech Manual, available in-person and via correspondence. It is not required that you complete the CMS Certified Maintenance Specialist® program, or equivalent, prior to the CST program. While we recommend that candidates have at least 1-2 years of industry experience, it is not required. Upon completion of the training program, you will be eligible to take the CST exam. 

An exemption for the course, known as the CST Challenge Exam, is available for Pool/Spa Service Technicians located in Long Island, NY due to licensing requirements. For those eligible, please click here to download the CST Challenge Exam Application.

Learning Objectives

  • Be able to explain common problems with pool finishes and how to repair them.
  • Keep your pools running more efficiently with a better understanding of circulation, filtration, hydraulics and electricity.
  • Grow your practical knowledge and gain troubleshooting skills and resources.
  • Distinguish yourself as an experienced and knowledgeable service technician.

How to Apply

Candidates for the CST program need not complete a certification application in advance of their test date. When you arrive to take your exam, you will be instructed to complete a participant agreement, which will serve as your application. All certification fees for this program are included in the cost of the training.

Program Materials:

Frequently Asked Questions

All individuals interested in APSP certification should review the guidelines listed in the Certification Policy Handbook.

Register for a Course

New courses and locations are being added regularly. View the complete certification schedule here to register.


Email the APSP Career Institute or call 703.838.0083 ext. 274.