Cosby's Septic & Excavating Services Ltd has specialized in residential and commercial wastewater disposal, new installations of septic systems, holding tanks and repairs since 1960. We have been providing this service through 3 generations. We are experts in our trade, Cosby Septic & Excavating not only has a vast knowledge of the business but we have the best equipment and staff available to get the job done right.

We are Fully Licensed Septic/Holding Tank Installers, Designers, Inspectors and Pumpers. Our company operates from Sherkston, Ontario. Contact us today 905.894.2741 for an estimate. Cosby's Septic & Excavating Services's licened experts specialized in residential and commercial wastewater disposal, new installations of septic systems, holding tanks and repairs since 1960.

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At Cosby Septic and Excavating Services Ltd, we offer a variety of septic services to residential and commercial clients in the Niagara Region and Golden Horseshoe. Whether you own a large home just outside of town, a small waterfront cottage, a hobby farm or a commercial establishment, we've got the equipment, knowledge and experience for any sized project.

Reviews (6)

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Winston Abernethy

Oct 03, 2020

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It was friday morning and our sewer was plugged. We didn't know what the problem was and we had a group of friends coming out to stay at the place the next day. Matthew (Cosby) came out and ascertained we needed to find the septic tank ... nightmare Friday but, although it was a long weekend he and his crew showed up early next morning, dug around and figured out the problem, fixed it and were gone before the guests arrived. I was bracing myself for a reasonable bill, especially considering the timeframe and level of service, and was blown away by his invoice. I totally recommend them.

Trish Hogg

Jul 23, 2020

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Positive: Professionalism, Punctuality, Quality, Responsiveness
Cosby Septic assisted us in an Emergency related to our Septic System. They arrived promptly, diagnosed the problem and went about figuring how to fix it. They had us up and running within the day. Very professional! We very much appreciated their excellent service!
Services: Find & repair leak, Repair outdoor systems, Repair sewer

Marion Morrison

Jun 01, 2019

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Outstanding service! Cosby's showed up as scheduled, and despite a recent heavy snowfall from the night before, they got right to work. The septic lids were dug up, the septic pumped and risers installed all in a timely manner at a very reasonable cost. Definitely recommend them and will use them again.

Judy Curtiss

Dec 05, 2017

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After a no show and no returning of calls from another septic/excavating company, I thought I would give Cosby's a call and they came out immediately to my elderly parent's place who were dealing with a sinkhole from a broken drainage pipe. These guys were friendly and carefully evaluated the situation. They had a couple of other appointments that afternoon but assured us they would be back right after them to hook up new pipe where the break was. This was a great relief to my parents and myself as there was rain in the forecast. They came back just as promised and did a fantastic job for a very

T. P.

Sep 23, 2017

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Matt has great expertise and handled our large job like a pro. He was always very professional and collegial. We would highly recommend Cosby Septic! Thanks Matt!

Derek Lee

Jan 04, 2017

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Major septic backup after hours called and they got back to me immediately. Came out and fixed problems. Have used before and would highly recommend this company.