» Septic Installations » Septic Pumping » Septic Repairs » Title 5 Inspections Four Convenient Locations ~ Curtis Septic: Littleton Office: 6 Meetinghouse Road Littleton, MA (978) 540-5555 Map & Directions » Stow Office: 128 Great Road Stow, MA (978) 897-3600 Map & Directions » Northboro Septic Office: 124 Main Street Northboro, MA (508) 393-7266 Map & Directions » Sudbury Office: 400 Boston Post Rd. Sudbury MA (978) 443-0235 Map & Directions »