ZO Drilling and Purification SystemSeptic service company in Houston, TX

ZO Drilling and Purification System is ranked #26 of 76 septic service companies in Houston by CR Score, with 54 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.

ZO Drilling and Purification System is open Monday to Saturday. Its listed hours are Monday to Friday, 7 AM – 7 PM; Saturday, 7 AM – 5 PM. On Saturdays it is open 7 AM to 5 PM and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves Houston and 11 towns within 25 miles: West University Place, Bellaire, Alief, Missouri City, Stafford, Jacinto City, Galena Park, Jersey Village, South Houston, Aldine and Pasadena. 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.

ZO Drilling and Purification System has a rating of 4.3 from 23 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 ZO Drilling and Purification System on (832) 420-3501. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.