Welcome to M&S Power Services


M&S Power Services provides acceptance testing, commissioning, start-up testing, and maintenance services for all electrical equipment ranging from 480V to 765kV. Our experts provide these services to electric utilities, industrial, oil & gas, commercial and renewable energy clients throughout the United States and internationally.

Experienced. Honest. Responsive.


Scope of Services

Our experienced technicians provide inspection, diagnostics, acceptance testing, commissioning, start-up testing, and maintenance services for all electrical equipment ranging from 480V up to 765kV. These services include High, Medium and Low Voltage Switchgear, Breakers, Transformers, Infrared Testing, Power Factor Testing, Power System Metering, Protective Relay Calibration, SF6 Gas Analysis, Emergency Response, Trouble Shooting & Repair and many other electrical services.  These seasoned professionals are fully equipped with vehicles, testing equipment and technical support for the most challenging of projects, either energized or de-energized.  We pride ourselves on our safety record and our ability quickly to respond to our clients ever changing needs in a cost effective and efficient way.  Backed by the technical capabilities of our sister company, M&S Engineering (www.msengr.com), we can tackle the most challenging of projects.

Commissioning & Preventative Maintenance

Our technicians provide electrical testing, commissioning and trouble-shooting services to support the maintenance and operations during scheduled and unplanned electrical outages  We understand that reliability of electrical services is imperative and that outage times must be short, therefore each technician is fully equipped to diagnose, test and repair most electrical apparatus.  To meet the growing demands for faster turn around and increased up-time, M&S uses state of the cutting edge testing equipment, which is capable of producing preliminary test reports at the time of service. With this confirming documentation readily available, troubleshooting and repairs can be addressed faster and with better accuracy.  Our services on de-energized equipment include:

  • Acceptance Testing
  • Commissioning & Start-up Testing
  • Maintenance & Repair
  • Bus Inspection
  • Testing Cable Testing
  • Circuit Breaker Services (480V-765kV)
  • Current/Potential Transformer Services
  • Generator Testing
  • Grounding System Survey
  • HV, MV, and LV Switchgear Services
  • Hipot Testing
  • Infrared Testing
  • Insulating Oil Analysis
  • Motor Testing
  • Power Factor Testing
  • Power System Metering
  • Power Transformer Services
  • Protective Relay Calibration
  • SF6 Gas Analysis
  • Station Battery Services
  • 24/7 Emergency Response

Condition Based Maintenance

Our technicians can also provide many maintenance functions on energized equipment using leading edge diagnostic, analysis and testing equipment to optimize life expectancies. In an industry where unexpected equipment failures cost time and money, our seasoned field technicians diagnose, analyze and inspect existing electrical equipment under load, with minimal or no interruptions of service.  With test reports and reviews in hand, operators can make educated decisions about critical apparatus and plan corrective actions—instead of reacting to unexpected outages. Our services for energized equipment include:

  • Level II Condition Assessment
  • Enhanced Visual Inspection
  • Partial Discharge Testing
  • Ultrasonic Analysis
  • Infrared Analysis
  • Dissolved Gas Analysis Review
  • Oil Quality Review
  • Vibration Analysis
  • Cooling System Analysis & Functional Testing
  • Lightning Arrester Testing
  • Historic Condition Grading
  • Load Tap Changer Functional Testing

About Us

M&S Power Services was established in October 2012. As a sister company to M&S Engineering, M&S Power Services provides experienced field service technicians to compliment the engineering and technical staff to provide additional service and better value to our clients.  To meet this need, we recruit and hire technicians who are experienced in apparatus, relays, instrumentation and diagnostics for electrical equipment.  By collaborating with area utilities and hiring industry experts, M&S Power Services brings responsiveness, understanding and customer service to our clients that is currently lacking from the industry.

Our approach is unique to the market, in that, we invest heavily into state of the art equipment and personnel training to provide services at the highest quality to our clients.  Equipped with the latest, state of the art test equipment, our technicians and field engineers are able to test and calibrate the most complex electrical systems in service today.

Management Team

Mark Ashcraft

Power Services Division Manager

Mark Ashcraft

Mr. Ashcraft has more than 30 years of experience in testing, maintenance and construction of electrical systems from 480v to 765kV. He is experienced working in and around energized equipment within large industrial, utilities and commercial facilities throughout the U.S and internationally. Mark is an experienced testing technician, team manager, and project coordinator, he is both a skilled technician and talented supervisor.

As Operations Manager, Safety Manager and Lead Technician for M&S Power Services Mark’s responsibilities include safety and oversight of personnel, pricing, scheduling and performing acceptance and maintenance testing of electrical equipment. Mark is responsible for the training and development of technicians and supervises day to day operations of with electrical service activities, providing oversight to insure safe and efficient completion of projects.

Contact Us

Email Address

6477 FM 311
Spring Branch, Texas 78070

Mailing Address
PO Box 995
Spring Branch, Texas 78070

Phone Number
Toll Free 1-844-267-3647