Dennis Diffley Drain Service
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We Are the Drain Cleaning and Sewer Construction Experts. Dennis Diffley & Sons Inc. is a leader in residential, commercial and industrial drain cleaning and sewer construction services with over 35 years of professional experience, serving the Rhode Island area. We are the experts you can trust. Whether it be new or replacement sewer lines, cleaning, repair, sewer connections and more.

We are a full service company with highly trained and experienced crews using the very latest equipment and technology to ensure that you receive a high quality drain cleaning or sewer construction experience. When Dennis Diffley first started in the business he quickly became the top trouble shooter for a major national sewer company.
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Dennis Diffley & Sons Inc. is a leader in residential, commercial and industrial drain and sewer cleaning services with over 35 years of professional experience, serving the Rhode Island area. We are the experts you can trust. We have highly trained and experienced crews with the very latest equipment to insure that you receive a high quality drain cleaning experience.
We already offer EVERDAY LOW PRICES at Dennis Diffley& Sons and you could save more with us without any coupon then you will from a company that lures you in with a big coupon offer, but charges you an arm and a leg for their services. Remember: All that glitters is not gold.

So before you make a decision to use a coupon because you think it saves you more, make sure it is a real value and not just a tactic to bait you into paying a much higher price for the same service you can get from our Everyday Low Prices.One quick call is all you need and your problems are over. So to get you started today here are some real value coupons* we offer to save you a little more money off our already Everday LOW Prices.
Dennis Diffley & Sons Inc. has been proudly serving all of Rhode Island since 1976. What does that mean to you? It means that with thousands of satisfied customers we have proven that we know what it takes to make our customers happy. Check out our testimony page to see what your neighbors are saying about us.
If you're not sure where your D-Box or Septic Tank openings are located, we can help you find them. Have your septic tank manholes become buried? Here is what we can do for you. We place an electronic transmitter attached to a flexible cable line and insert it into the sewer at a pipe opening, clean out, or pipe end and manually pushed it down the pipe.
Our video camera inspection service eliminates guessing. It assists our trained professionals to determine the condition of your sewer line and what your best options are to solve your sewer line backup problems. We recommend video camera inspections because there are a number of reasons that can cause your line to back up.
Reviews (6)
Joseph Golomboski
Joseph Golomboski
Dec 29, 2021
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Ryan was knowledgeable, friendly, and extremely helpful to resolving the problem with my main water line, would highly recommend.
Jason W. Connors
Jason W. Connors
Apr 26, 2021
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This company is the definition of unprofessional and incompetent. About a month ago, I called requesting some basic services (riser installation and a pump out). The receptionist said a technician would call me. This never happened. I called three times over the next three weeks requesting the same services. Again, I was told someone would call to schedule service. Finally, I called a fourth time and finally I was able to get a technician scheduled for a date and time. Well, on that date and time the technician calls and cancels and asks to reschedule. I agreed to reschedule for two days later
River Social
River Social
Aug 16, 2019
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I am not the review person! But if there is below than 1 star i would of give that to this company! Called 2 weeks straight tried to reach to Denis get price and when he can fix. He is never in office left twice a day 2 weeks straight message to his secretary! Nobody called! She is Extremely rude! Dont even waste your time with them! Very Unprofessional!
Melissa Bergeron
Melissa Bergeron
Aug 12, 2017
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Didn't find out until after they were done checking out my situation that it was going to cost me $100.00 just to have them there for 15 minutes. That us something they should be upfront about!
Stephen Nault
Stephen Nault
Sep 26, 2016
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Impeccable service from their tech Jon and his assistant, a can do and won’t stop attitude was impressive to see. Very professional and never lost their heads or their cool. Worked long into the night in 18 degree temps. Pricing was very reasonable for the work they put in. Would Definitely recommend using their service if you every have a drain issue in your house or business.
Linda Nault
Linda Nault
Jul 21, 2016
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Excellent customer service, the service techs were extremely friendly and with a "won't quit" attitude until the job was done. The pricing was very reasonable with no hidden fees.. We cannot thank them enough.