Had a fantastic experience with the company they are competitively priced, on time and courteous…read more 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. And Dave for a fast and well done install!

Holy !! I had Complete Basement Systems come in and put a French drain and sump pump system in my…read morebasement after I experienced a flood after moving in to my house only 9 days prior. Work was performed clean. The workers were very nice and the system is still going strong and haven't had any issues 8 YEARS LATER. Pump probably runs every time it rains heavy now which only makes me smile. One time investment and a lifetime of peace of mind. Trust me don't deal with the water and leaks and mold just get it done. The price was reasonable for the amount of work that was performed. So glad I put that system in.

Christian and his team were fantastic, from start to finish. He was accessible by phone (actually…read morereturned my call the same day!).. and was over to diagnose and quote the problem in my basement within a few days - because it was not an emergency. He was able to schedule the work quickly and his team (Jean and two other men) were extremely professional, hard working and thorough. Christian's follow-up through-out the process and after the job was done was excellent. It's only been a few weeks, but we have had a number of storms and no water to be seen anywhere -- even with the 6 day power outage!! Highly recommend for all your waterproofing needs!!

I had Connecticut Basement come in and do my basement for waterproofing. They charged an…read moreexorbitant priceI continued to have water in my basement for 3 years. They kept coming back to fix it but never did. Finally, I called Sundahl Waterproofing. They came in and did an excellent job in waterproofing my basement. Since their work was completed, I've not had any water in my basement even during our wet spring and summer. They were professional, clean, and just provided excellent service. I would highly recommend if you have water issues in your basement or foundation issues, call Sundahl. You will be glad you did. They fix it right the first time.

Still working very well. THANX. One thing, the pipe from the…read more"catch-bucket" that is pumped outside into a vertical pipe, the water spurts out (must see) at the connection...it's an easy fix.

The salesman is very knowledgeable. We had to completely reverse engineer an old house system…read more Lots of water. Messy job. The crew of 3 worked aprox 5 hours each day and took 2 days to complete. It is hard dirty work and the guys were great. Respectful and pretty quiet. The system has been in for a week and the basement is dry...and getting better daily. A few downsides...the 70 feet of pipe in the ground has a giant mound over it the whole length which I now have to fix. We didn't have basement access from outside so the crew had to pass 1 bucket at a time out a window that unfortunately is right at our main entry. They did the best they could, but the decking and the shingle siding at the window area was trashed. Covered in mud/cement splatters and pretty scraped up despite the cardboard and plastic they laid out. I have some clean up work to do there as well. There is no "kim" copyright special cement...its quick crete... just add water home depot anyone can purchase. I figured about 1200 in labor and 2400 max in materials ( gravel,hoses,pitboss,matting and cement) I paid 9100.00 pretty big profit somewhere. All in all though....it was a flooding situation and the guys worked really hard and the system designed is definitely doing the job.

Cisco and his team were fantastic. Arrived on time. Kept us informed throughout the process. We…read morehighly recommend them

I had an appointment scheduled for today, May 9th and no one showed up. Since my appointment was on…read morea Saturday, the main phone line was closed and no one picked up. In the two emails and two texts I received from them with appointment details there was no after hours line or way to contact them at all. I'm very disappointed in their service, and it is disrespectful that I book my entire afternoon to be home only to be blown off. Beware before using Connecticut Basement Systems.

I felt the need to write this review, although technically Greg and I have never done business. In…read morethe recent round of rain storms, my sump pump stopped working as it is supposed to, and I ended up with about 5 inches of groundwater in the basement. I was able to get the sump pump working again, but 3 days after it stopped raining, I was still getting a lot of water in the pit. I found a sticker for Contractors Waterfproofing, and figured they might of installed the system for the old owners, so I gave them a call. From the moment he picked up Greg was service oriented and responsive. He asked for my address to look up the job, and when he couldn't find it, he called back within 5 minutes to ask what was going on. I explained the problem, and he immediately told me that was normal for my part of town, and told me I just needed to replace the pump and I would be fine. He offered me a price that was half what his competitors charge, but I told him I would do the work myself since I am capable. He then answered a ton of questions about the install, and we had a great conversation about life and how my son could maximize his potential long-term, as he is currently a plumbers apprentice. The bottom line is that the system Greg installed 20 years ago is still working perfectly, and when the pump failed, he not only gave me a fair price, but then walked me through how to do the job myself. This is unheard of in 2025. Greg will get all my business going forward. Thank you.

This is an overdue review. I like to do it as we celebrate Independence Day. My house had a…read moreterrible water leak problem. The house was not designed to have a basement and the basement was made after the house was built. It was located at the lowest point of the neighborhood so that the yard is over 4 feet below the street grade. I asked many contractors and nobody could give a warranty on their potentially trial-and-error treatment until I found Gregg. Gregg and his crew know what they are doing. They offer a warranty. They saved our house from the nightmare of the basement flood. In recent big storms our house has been dry and neat. Thank you very much Gregg! Happy Fourth of July!

Mark stopped by to give an estimate for waterproofing…read more He walked around outside and said "I'm not doing this job." I called to follow up and get some more information and he ghosted me like I was a Tinder date. Bizarre behavior from a grown man.

Mark and his team at ACM are wonderful. We had french drains put it 14 years ago. We are lucky…read moreenough that we don't need water pumped out of our basement often but did need it twice this year. They worked perfectly and even after 14 years the pumps are great. Just had a service call to make sure everything is running smoothly incase we need the pumps again and the service man (John) found everything to be in great. Highly recommend ACM. Very honest, fairly priced and excellent work! French drain's really work, even with the ground water rising from the bottom up (which is what happens in our case).

Had a great experience with Junior and his team today. As a new home owner, I wanted peace of mind…read morethat my chimney was working right before I used it over the holidays. They went above and beyond to explain everything to me and even bought & cut up wood to have on hand. Highly recommend!

Excellent work on my chimney which was in bad shape. Professional, diligent and meticulous.read more