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.

This company pressures me into the most expensive solution for drainage of my yard and after…read morespending more than $12,000, my yard still is exactly as much of a swamp as it was before. I also received a violation from the town for the work and this company won't return my phone calls to help respond to the town to address what was done. I supposedly have a 20 year warranty on the work but after 9 months of no response, that warranty is completely useless. Irresponsible and Poor customer service at best. Criminal negligence at worst.

From the owner: At Infinity Waterproofing And Construction LLC, we are dedicated to providing exceptional roofing…read moreand masonry services to meet the unique needs of our clients. Our company was founded on the principles of quality, reliability, and customer satisfaction. With years of experience in the industry, we have built a reputation for delivering top-notch craftsmanship and unmatched service.

Great company. Just moved to a new house and they had well water which I have never had to deal…read morewith. Alliance serviced the previous owners system so I figured I would give them a shot. I thought they did a great job. The person I spoke to at the company was very knowledgeable and helped me figure out what i needed to do right away and what could be delayed a bit. They cleaned my entire system. The tech they sent over was super nice and a hard worker; he didn't stop the entire time he was over and he worked for hours. I was so pleased with their services that I later had them come back and install a reverse osmosis system which works great and came out really nice. The water is delicious. Will definitely use them going forward for all water related needs.

From the owner: One call solves it all. Specialists in water treatment including water softeners, reverse osmosis;…read moreRadon systems; Waterproofing including sump pumps and French drain systems. 17 Years in Stamford and surrounding areas. 33 Years experience. Member Chamber of Commerce, National Radon Safety Board. We take care of people building our business one customer at a time.

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.

They provided me with a fair estimate and performed the work in a timely manner. Very professional…read moreand courteous. Would highly recommend! Thank you for the great work.

From the owner: Epoxy Floor coatings. Garage floor coatings. metallic floor coatings. Garage doors.read more

Frank and his team installed a drain in our garage today. He was nice, professional, quick, and…read morethey know what they're doing. They even left the garage cleaner than it was when they arrived. We would definitely recommend!

Frank was great to work with and I felt honest and reasonable. I used him to add a sump pump in my…read morebasement as well as a driveway drain. His crew was respectful, worked fast and did good quality work. I would definitely recommend and I'd work with him again. I was overwhelmed by competitors - dishonest and taking advantage - by both price and also the necessary work

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).