Richardson Sanitation, LLCSeptic service company in Madison, WI

Richardson Sanitation, LLC is ranked #9 of 13 septic service companies in Madison by CR Score, with 53 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.

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

Serves Madison and 11 towns within 25 miles: Waunakee, De Forest, Middleton, Sun Prairie, Monona, Baraboo, Portage, Verona, Cottage Grove, McFarland and Fitchburg. 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.

Richardson Sanitation, 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 Richardson Sanitation, LLC on (608) 592-3758. The business is at 6640 Reppen Rd, Dane, WI 53529, Madison, WI. Ask for a written estimate before any work starts.