Commercial Cleanroom Services

At Pegasus Building Services, we understand the critical importance of preventing and eliminating contamination in controlled environments. We offer daily, weekly, or monthly visits across the United States.



We make certain your cleanroom environment exceeds the industry’s highest regulations for contamination control, maintenance and safety. Our critical environment cleaning professionals use the most innovative technologies and possess industry-leading qualifications.

Our Cleanroom Cleaning Services


We follow International Organization for Standardization guidelines, reflecting our commitment to continuous process improvements, such as ISO 9001:2015 certification. Pegasus offers comprehensive decontamination services for critical environments, from micro-cleaning and critical environment sterilization to contamination control and microbial environmental testing. We can handle regular and periodic cleanings —  nightly, weekly or monthly service options available.

We Proudly Service:

  • • Cleanrooms
    • Gray space
    • Cold rooms
    • Dry rooms
    • Laboratories
    • Gown rooms

Our services utilize an H202 fogging system, it’s suitable for both controlled and non-controlled environments.

Additional Cleanroom Services:

  • • Level I, II and III cleaning
  • • Aseptic cleaning
  • • High-tech cleaning
  • • Parts cleaning
  • • Super-cleans and shutdown cleans
  • • ESD floor care and testing
  • • Protocol and SOP development
  • • H202 decontamination
  • • Environmental monitoring

For all such controlled environments, Pegasus Cleanroom Services can also design and implement a contamination control program that prevents pathogens from entering or contaminating your cleanroom environment –  including pass-throughs and shipping & receiving.


What Our Clients Are Saying


“Our cleanroom is always in compliance with the regulation standards. Our product has always passed the sterilization requirements. This is the result of Pegasus following the proper cleaning.”

– Edna W, Quality Assurance


“I never have to worry about the job they do. They are competitive, thorough and attentive.”

– Dee Dee H, Facilities


“I think Pegasus is the best service we’ve used. They are consistent and caring.”

– Ken K, Facilities Director


“Dependability and service are very important to us. Pegasus has always addressed any problems or issues quickly and professionally.”

– Lee E, Facilities Manager

Cleanroom Cleaning Process Guide