NACE certified inspectors
ACI certified nozzlemen
American Red Cross Worksite Safety Award
.67 Workers Comp Experience Modifier
3rd Generation Family Business
Winner of four Build Maine Awards
ISNET World Certified Contractor
Knowles Industrial Services Toll Free: 800.834.1901
Phone: 207.854.1900

Since 1924 – Knowles Industrial Services

Concrete Repair & Masonry Restoration Specialists

Knowles Industrial Services is a specialty concrete repair and masonry restoration contractor founded in 1924. We deliver innovative methods to repair, protect, and strengthen concrete, steel and masonry structures, as well as apply our shotcrete, gunite, and waterproofing services to a wide range of projects. Many of our staff and site personnel have more than 20 years experience and take pride in their knowledge and expertise while prioritizing our clients’ needs. Members of the Knowles team strive to build and maintain a reputation of 100% customer satisfaction through safe, efficient, and innovative work.

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We Are Dedicated To:

  • Providing a Safe Work Environment
  • 100% Customer Satisfaction
  • Managing Costs & Providing Value
  • Quality Craftsmanship
  • Technical Expertise
  • Teamwork
  • Highly Trained & Skilled Workforce
  • Honesty & Integrity