Choose A-1 Septic & Rentals if you require clean, well serviced and maintained portable toilet rentals. For construction sites, special events, company functions, family reunions, and any other event that requires portable toilet rentals, call A-1 Septic & Rentals. "We're A-1 for a reason!" Serving: Edmonton, Nisku, Leduc,Sherwood Park, St. Albert Spruce Grove, Stony Plain and Fort Saskatchewan.