GFF PlumbingSeptic service company in Knoxville, TN

GFF Plumbing is ranked #26 of 61 septic service companies in Knoxville by CR Score, with 56 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.

GFF Plumbing is open Monday to Friday. Its listed hours are Monday to Friday, 7:30 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves Knoxville and 12 towns within 25 miles: Smyrna, La Vergne, Murfreesboro, Nolensville, Mount Juliet, Lebanon, Green Hill, Brentwood Estates, Brentwood, Christiana, Nashville and Hendersonville. 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.

GFF Plumbing has a rating of 5.0 from 37 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 GFF Plumbing on (865) 489-8043. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.