Dennis' Septic Service & Portable Toilet Rentals is a family owned and operated business serving residential and commercial clients throughout St. Andrews and surrounding areas. We have portable toilet rentals available for public and private events - long or short term. From a few guests to a few hundred we have your restroom requirements covered. Our septic division provides affordable septic tank cleaning services 365 days a year. Get in touch with us for more information. more... See more text