Verified record
Sweeney Excavating Corp. is a Plymouth-based excavation contractor that has served the South Shore and Cape Cod side of Massachusetts since 2014, covering septic system installation and repair, site development, retaining walls, hardscapes, grading, and drainage. Owner Mike Sweeney (listed by BBB as Michael J. Sweeney Jr.) runs it as a sole proprietorship with 18 years in business. The reviews on file, spanning 2021 through late 2023, describe hands-on site work rather than routine repairs. In a 2021 review, a homeowner described Sweeney's crew removing an old, beyond-repair in-ground pool — draining it, demoing it, filling and regrading a yard that had flooding issues — and said the regrading held up through a rainy summer that put it to the test. A 2023 review described the crew fixing a portion of a sea wall, with close communication before, during, and after the job and quick responses to questions. Other reviews mention friendly, easy-to-reach staff and work finished on time. The company holds a non-accredited BBB A+ rating with no complaints shown there. There isn't much else to flag — the written record is thin in volume but consistently detailed and positive about the actual site work. Worth confirming current lead times and getting the scope of any septic or drainage work spelled out in writing, since those jobs can vary widely in cost.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Sweeney Excavating Corp.. Use it to sanity-check bids, then get the real number in writing.
Not sure which you need? Start with an inspection — many reputable companies assess free, and independent assessments run up to $500.
The wall run getting the drain — a full 30×40 ft basement is about 140 ft.
Estimated range
$7,600 – $15,000
Typical waterproofing project around $11,300
“Run away lies all the time management is horrible. Money is low on pay scale.”
Sweeney Excavating was very easy to work with. Answered all my questions. Easy to contact. Made some good recommendations for my project. Staff on site was always friendly and courteous. Looking forward to working with them in the spring to finish the project.
Once again, Sweeney Excavation did an excellent job fixing a portion of our sea wall. They are wonderful to work with and they keep in close communication with you before, during and after the job is completed. When questions or concerns are raised they quickly address them and go the distance to satisfy the customer. I highly recommend them.
Great work, done on time. Could not have been better. The first day I was asked if I was happy, I wasn't sure because there was so much that had to be done. Next day they did so much more then I expected. My wife came out back and was completely blown away. It was like buying a Fiat and getting a Lamborghini.
Mike Sweeney and his team were fantastic to work with from start to finish. We moved into a house that had an old pool that was beyond repair, and we decided to get rid of it. Sweeney and his team took care of removing the water, demo, fill and regrading the yard (we had flooding issues due to the grade of the yard with the pool). He also offered sod and hydroseeding. With all the rain this summer, we have been able to put the yard to the test, and we can honestly say the regrading has helped immensely. We are very impressed with his team and quality of work. Highly recommend!
Mike Sweeney and his crew did an amazing job very proficient. Excellent customer service appreciate what they did for us thank you guys great job highly recommend them
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Established 3.3 rating
Honest troubleshooting4.7