Old Line Septic LLCSeptic service company in Frederick, MD

Old Line Septic LLC is ranked #15 of 34 septic service companies in Frederick by CR Score, with 51 out of 100 as of November 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

Old Line Septic LLC is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 5:30 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves Frederick and 11 towns within 25 miles: Ballenger Creek, Brunswick, Walkersville, Robinwood, Spring Ridge, Thurmont, Hagerstown, Halfway, Urbana, Fountainhead-Orchard Hills and Green Valley. The list is based on the business's location and the usual service radius for septic and sewer service. Confirm your address is covered when you call.

Old Line Septic LLC has a rating of 5.0 from 3 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call Old Line Septic LLC on (240) 367-8926. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.