Complete Basement Systems - Massapequa, New York

Matthew Jacobs

I used Complete Basement Systems for my finished basement taking in water in 2 different spots when it would rain 1-2 inches. They came for an estimate, explained everything, and answered all of my questions- even if I had questions after and I’d email them. They water tested the areas and determined where the water was coming in. After they finished, they tested it again and no water. The REAL test was last week. My town got 10 inches of rain in less than 3 hours!!! Yard was a pool and my street was a river- yet not one drop of water in the basement! I can’t recommend Complete Basement Systems enough!

paul valerga

This is the 2nd time I’ve used CBS for waterproofing needs in my basement. The first was over 15 years ago and that system is still operating flawlessly. Unfortunately I’ve had some issues with the French Drain pipes that were originally installed many years ago (not by CBS). Although a complete basement rip out could have been warranted, with Daniel’s help we were able to figure out a way of fixing the problem without the stress and high cost of demolishing my finished basement. With the amazing help and support from Jessica, a team (lead by Dave and Tony) was sent to me on short notice and did a great job installing a second pump system which was able to reroute the water that was stuck under the floor and which seeped into the basement through the cove joint every time it rained.

CBS is reasonably priced and does a great job making sure the work is done correctly and properly. I highly recommend CBS to anyone that has water issues.

Eddie Vais

Had a fantastic experience with the Complete Basement System Family. they are competitively priced, on time and courteous. They were patient with my questions and informative with what was being done. Highly recommend them.

Special thanks to Daniel for
Coming out looking at my home and recommending the appropriate things I needed. Jessica for answering the many questions I called in. Special thanks to Dave, Anthony and the crew for a fast and well done install and patients to explain the process. In the sweltering heat of summer.

They Have the best customer service!

Added some photos of the clean great work they do.

Just an updated after I had some more work done again really professional and well done. Trench that was dug was covered back up like it's not even there.

Judith Scholl

I was very pleased with the work that was done on my basement wall crack. Anthony and his partner came on time, the job was done in a professional manner, cleanup you would never know they were there. I highly recommend Complete Basement System over any others that claim they can fix your wall leaks. They don’t use paint to cover up the problem, it’s done by injection. Best of all, they guarantee their work, who else does that.

Ryan Mimnagh

Complete Basement Systems was a pleasure to work with. They responded in a timely matter to questions I had when preparing the scope of work and the schedule. They were on time and ready to go as discussed and actually finished slightly early. The job was handled professionally, and I'd use them again if I had to but I'm not expecting to!

MEWilke MEWilke

The team was very professional and friendly to work with to help address our basement windows flooding problem. They told me what we didn't need to waste money on and recommended a low cost approach.

Lou Balestriere

I can't express just how appreciative of the work that Complete Basement Systems just finished in our basement. Our home was recently built in 2019 and we've had issues with water in our basement beginning a year after it was built. We tried various things to remedy it, but nothing worked. After the recent significant storm we had in September of 2023, and the flooding that came along with it, I contacted CBS. Dan, their director of operations came to take a look and was extremely knowledgeable in all aspects of water remediation and was very clear in explaining everything to me. Their work crew was equally excellent. Dave and Anthony, the project managers were very communicative and explained every step of the work they performed and answered all of my many questions. They and their crew showed up early every day, worked extremely hard, cleaned up after their work was done and finished the job on time. The quality of their work is phenomenal. On the day they finished we had 4 inches of rain. Most of my neighbors, unfortunately, flooded and our basement remained dry. Our pumps pumped out approximately 4000 gallons of water before any of it reached out basement. They even showed up the following day to make sure everything worked as expected. I can't recommend them enough.

Alisha Anderson

They did a wonderful job. My in-laws are pleased with the job that was done in their basement. My mother in-law had nothing but good words to say about their workmanship. They're trustworthy, friendly, reliable, and do a great job in her words. Thank you so much for helping them get the basement together. I highly recommend this company.