Dennis Diffley Drain ServicePlumber in Warwick, RI

Dennis Diffley Drain Service is ranked #32 of 101 foundation repair companies in Warwick by CR Score, with 76 out of 100 as of October 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.

Dennis Diffley Drain Service is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

Serves Warwick and 11 towns within 25 miles: East Greenwich, Barrington, Cranston, Warren, West Warwick, Bristol, East Providence, Providence, Johnston, Portsmouth and North Providence. The list is based on the business's location and the usual service radius for plumbing. Confirm your address is covered when you call.

Dennis Diffley Drain Service has a rating of 3.5 from 29 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 Dennis Diffley Drain Service on (401) 737-0560. The business is at 2650 Warwick Ave, Warwick, RI 02889. Ask for a written estimate before any work starts.