P Ialongo Building Co Inc
“The deck came out better than I could have imagined, and feels much more stable to walk on with new supports.”
Best Septic Tank Installers near Cranston, RI
1 of these companies is based in Cranston; the others serve Cranston from towns including Warwick (5 mi), Rehoboth, MA (11 mi) and West Warwick (3 mi).
3 open 24/7 · 9 open weekends · 12 rated 4.5+ · 4 show a license
Data verified October 16, 2026
Paul Anderson Drain Cleaning Inc.
“It was a very difficult clog due to the amount of buildup, but he took the time to thoroughly diagnose the problem and worked diligently until everything was flowing perfectly again.”
Proseptic
“This is the second time we have used Pro Septic I have found them to be friendly and professional.”
Town Sanitation
“Gave a detailed explanation on the current status of the septic, and provided critical further maintenance advice.”
Croome Sanitation Inc
“He and the woman I originally spoke with were both informative and gave us tips to keep our system in good shape.”
Coia Sanitation Llc
“I would recommend this Coia Sanitation Service to any one such great and hardworking people that work for this company.”
The 15 companies listed for Cranston, RI design and install septic systems and replace failed drain fields. Each company's own site is the source for its hours, license claims and estimate policy. Ask who pulls the permit and who schedules the health department inspection.
Area overview: Cranston, RI
The 15 companies on this page are rated from 3.4 to 5.0 across 632 reviews; 4 have 50 or more reviews and 12 are rated 4.5 or higher. 3 are open around the clock; 9 are open on Saturdays and 3 on Sundays. 4 show a license on their websites and 5 have a BBB rating of A or A+. Domain records put 10 websites of the companies on this page at ten or more years old; the oldest dates from 2004. 3 offer emergency call-outs; 5 give free estimates; 7 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 13 of the companies on this page; 11 publish a contact page; 9 list a public email and 2 take bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
What should I look for on an installer's website?
13 of the 15 listings link a website. Look for photographs of open trenches and finished sites rather than stock images, the brands of tank and treatment unit they install, and whether they also do soil testing and design. A company that only digs will need someone else for the part that gets approved.
Green Wastewater Solutions
“GWS solves your problem quickly, with a smile and don't charge an arm and a leg!”
Friendly Septic
“I 100% recommend Friendly Septic, very professional, great service, and friendly owner.”
D H Keene Septic Services
“Could've easily told me o needed a new septic but insisted it was worth taking a shot at fracking my system first and it worked , saved my 30k.”
H&R Paving and Excavation
“I called Ocean State Cesspool for septic maintenance service and my call was answered immediately and service was scheduled for the next day.”
Kirby Brothers Construction
“They were prompt courtious and they were all handsome”
Fernco Services Inc
“I spoke with Dave and he was honest and knowledgeable about my situation”
D'Libro Excavating
“Henry and his crew are professional, timely, courteous and get the job done as discussed and outlined.”
Ronnie's Central Sanitary Services
“He replaced the tank in a day and even went out and got gravel to replace the gravel that was dug up during the project.”
Land Works LLC
“Joe Procopio has completed the foundation excavation at our forever home along with other odd jobs on the site.”
Why these companies made our list
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