Felix Septic Service, Inc. was founded over 40 years ago. Mark Thompson acquired the company in 1987 and continues to operate it as a family business with two of his sons and a nephew as an intricate part of his staff. Mark maintains the original company name of Felix Septic as a gesture of respect and gratitude to its original owners.

"The Company has grown to be one of New Hampshire’s largest and most prominent septic service providers. We are capable of solving any problem that may arise with septic disposal or drainage systems."

- Mark Thompson, Owner

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Our Clients are your Neighbors

Thousands of residential customers benefit regularly by our services. Additionally, Felix is proud to service multiple health care facilities and schools in Central and Southern New Hampshire.

  • Pellham School District
  • Windham School District
  • Londonderry School District
  • Bedford School District
  • Elliot Helath
  • Cigna Health
  • United Healthcare
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A History of Service

Among our dedicated commercial clients, we capably serve multiple locations for:

  • Walmart
  • McDonald’s
  • Pizza Hut
  • Dunkin’ Donuts
  • Carrabba's
  • Bass Pro Shop