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    CGS Waterproofing & Foundations

    4.6 (44 reviews)
    Closed 9:00 am - 5:00 pm

    Get pricing & availability

    Response time

    11 hours

    Response rate

    80%

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    CGS has been our goto construction company for many years now. Most recently they did a great job constructing a fence around a basketball court we paved. We look forward to using them on our next project.

    New roof done by CNG waterproofing.
    Wendell L.

    We needed a new roof after 17 years. So I looked and compared roofing companies. I read reviews of 7 different companies, and then I read CGS waterproofing reviews, and I was satisfied with what I read. I wanted a reliable, honest, and professional experience. That's what I got from CGS. First, I want to say thank you to Carlos Martinez for getting his works out here on time and doing a fantastic (one day) job. They arrived at 7am, by 7:30am they was stripping the roof. Clean up their mess, and it was all done in one day. I have told my friends family about CGS and how wonderful of job they did. I recommend CGS waterproofing.

    Encapsulation
    Natalie S.

    I noticed some moisture forming on the walls of my basement/crawl. I was concerned because of the humid smell coming from the basement so I called CGS to see if they could diagnose the problem. From the office ladies to the inspector jay to the crew that came out it was seamless! They have very reasonable pricing and it's affordable (in comparison to aquaguard and other companies) I was able to have to work done within two weeks of initial inspection. I will be recommending CGS to my friends and family!

    Feng Z.

    Did a good job, Good Service, good Price! I love it, the First two picture is before. Last two pictures is now , Compare it, very satisfied

    Ana P.

    I have been having leaking problems for days and with these rains it has gotten worse so I decided to look for a waterproofing service to solve my problem. Searching on Google I came across CGS waterproofing which were at my service from the beginning. They had an immediate response and they explained to me what has to be done. The price they gave me seemed very affordable and fair and the service was always top-notch, They were on time and finished in a couple of hours. I'm really satisfied with Joaquin and his entire crew, I like being able to rely in professionals. A few days have passed and the quality of service remains intact. 100% recommended.

    I had water coming in for the longest time in our new home. The home inspector did not notice the water when we purchased the home and we were stock with the problem. We called many companies but after 4 estimates we decided to go with CGS. They had the best price way lower than the other estimates, which made us doubt their quality. We got our waterproofing done 4 months ago and no water since. We recommended them to 2 other friends and they loved it. Not always low prices mean low quality, at least not with them! Do your self a favor and get an estimate from these guys if you have water intrusion. Thank you CGS

    Braulio J.

    have you been looking for a company to fix all your home issues, well... cgs is the company you been looking for! trustworthy, puts you first, great pricing, and topnotch service. thank you cgs!

    Cgs waterproofing

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    5 years ago

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    1 year ago

    It is now years later. And I realize the drain was clogged because they never removed the knockout separator between two pipes. Horrible job

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    1 year ago

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    Joaquin C.

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    1 year ago

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    2 years ago

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    3 years ago

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    Joaquin C.

    Thank you Wendell for your feedback! We appreciate it !

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    2 years ago

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    3 years ago

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    Joaquin C.

    Thank you for leaving us your honest feedback! We appreciate it!

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    3 years ago

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    Joaquin C.

    Thank you for your feedback Brielle! We really appreciate it!

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    5 years ago

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    6 years ago

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    4 years ago

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    6 years ago

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    7 years ago

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    4 years ago

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    5 years ago

    CGS are professionals in the rehab industry. They take time to set expectations and address concerns. Fair prices, great service.

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    7 years ago

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    6 years ago

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    7 years ago

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    7 years ago

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    6 years ago

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    7 years ago

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    6 years ago

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    Joaquin C.

    Thank you for trusting us with your home.

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    Page 1 of 2

    Ask the Community - CGS Waterproofing & Foundations

    Review Highlights - CGS Waterproofing & Foundations

    Joaquin the inspector was very knowledgeable, and he listened to all my concerns, proposed different solutions.

    Mentioned in 7 reviews

    Read more highlights

    Crawlspaces and More

    Crawlspaces and More

    (3 reviews)

    Buckhead

    I spoke with Mr Nelson one & he came out the very next day.I watched him through the whole process…read moreof cleaning my couch,love seat & 13 pillows.He was VERY accurate with cleaning,sanitizing,deodorizer & protecting my sofa set.He did a WONDERFUL job & he was over $100 cheaper than others that offered the same service.I will definitely use Mr Nelson's service again in the future. 11/13/2024

    We paid $10,000 for our crawlspace to be encapsulated in 2023. I would think the key aspect of…read morekeeping the crawlspace dry is the dehumidifier. The one this company installed in 2023 quit working in 2024 after the one year warranty expired and I had to pay $1,000 to have another one installed. March 2025 the dehumidifier quit again. I called and they sent a technician out here and he said the company no longer uses those dehumidifiers. He inferred that they are of substandard quality and if I purchased another it would be quite expensive. He checked the dehumidifier and said my electrical outlet had switched it off. So, I paid an electrician to replace the outlet with one that doesn't automatically switch off. The dehumidifier continued to quit working. So, I asked an HVAC company to come and check it out. He said the dehumidifier is fills with water and cuts off because it isn't draining properly. He emptied it out and said it hadn't been correctly installed. He said it needed a condensation pump and the tubing needed to be replaced. I tried to reach someone at Crawlspaces and More and for weeks never received a return call. I finally received an email from Jim and he said he would come out and make sure the dehumidifier was on and charge me $200. I told them to forget it. I called a reputable company and they installed a very nice dehumidifier and replaced the door to my crawlspace. Ours was wood and rotted because it was decades old. They said Crawlspaces and More should have replaced it to thoroughly encapsulate the crawlspace. The new company installed a custom fit door that is air tight and sealed. I would not recommend Crawlspaces and More.

    Foundation Worx - Jonathan Maguire - Owner and Georgia Tech Alumni

    Foundation Worx

    (22 reviews)

    This company is horrible. Do not give them your money. Do not let them touch your house. All those…read moregreat 5-star reviews from several years ago were under the company's previous owner. The current owner, Brian, doesn't care if his company's repair job is done correctly or fixes the issue they were paid to fix. We hired Foundation Worx to add support under a hallway in our home. The job was done incorrectly, creating a large bulge in our bedroom floor and causing substantial drywall damage. I emailed Brian immediately and received no response. After calling the company a couple times, they finally sent out a salesman who doubled down on the improper repair and claimed there was no need to make any adjustments or corrections. We hired a structural engineer who confirmed the job didn't resolve our hallway issue and actually made it worse. We sent a Right To Repair letter certified mail to Brian, which he was supposed to respond to within 30 days. Brian did not respond. After waiting over seven weeks for a response that never came, I emailed Brian again and asked for a refund, as our house experienced significant further damage while we were jumping through these hoops trying to get a resolution from Foundation Worx. Brian finally responded but only offered to repair their project, 6+ months after they broke our house. This repair should have been offered to us immediately. As we could not trust Foundation Worx to repair our home properly or in a timely manner, we paid another company to do it. I requested a refund from Brian multiple times and this request was ignored. Save yourself the nightmare we went through and hire another company.

    This is my first yelp review ever and I'm doing so because apparently this company or at least the…read morewoman who answers the phone, says they don't do what their business says they do! I have a leak of some kind in the lowest level of my townhouse. A room I rarely used except to store things I have figured out what to do with. Sometime last summer with all the hard rains I ended up with a leak in the back corner. I didn't know about it for months but my HOA, who won't touch anything foundation, did send someone out and with some basic testing found a spot on the outside which correlates to where the water comes inside. Since I didn't discover the problem for months there is some mold on the baseboards and edges of the carpet. I called Foundation Worx to get an estimate and explained the issue. The woman who answered the phone first told me that they couldn't do anything until the mold was taken care of! REALLY! I questioned that since if repairs are done inside before the foundation repairs are done and then we get heavy rain, I end up with new inside damage to be repaired. I repeated that I wasn't asking them to repair the inside, I wanted an estimate on fixing wherever the leak is on the outside. That's when she told me that because my townhouse was on a slab they couldn't do the repair because they would have to dig down. I'm not foundation expert but I don't see how it's possible to fix any foundation issue without digging down to see/fix that area of the foundation! Looking at other reviews where people paid deposits upfront and their people never showed - I'm glad they refused me. Stay away from this group!

    AquaGuard Foundation Solutions

    AquaGuard Foundation Solutions

    (17 reviews)

    Tim and Damion did a great job leveling our pool deck and adjacent sidewalk. They arrived on time,…read morewere very professional, and sought our feedback before completing the job. We would definitely recommend them to others.

    had them come out to evaluate our crawl space which had some signs of water on the outer crawlspace…read morewall. we made some improvements just a few weeks prior but wanted to make sure everything is good. we are on top of a hill, so we don't have a sitting water issue. we had a surface water wasnt being redirected quickly enough issue. red flag #1: when I schedul the call, they say "we need to make sure you have 90 minutes to sit with the inspector " and as a sales person myself, my alarm bells started going off. sounds like a time share meeting. red flag #2: saying we need a drain around the perimiter of the crawlspace because water is seeping up. remember, we are on a hill. my background is ecology andI ask him how a drain is going to help if water is using capillary action to soak up into the crawlspace? could not say and skirted the question. that's no free water, that is water bound in the soil and salts. a drain wouldn't do anything. red flag #3: they show fear based inflammatory videos about how crawlspace are bad and harmful and something to mitigate. an animated bacteria and moldspore seeping through the floor boards to a living area with a baby in the background?? that's manipulative. red flag #4: same day discounts. quoted a crazy cost ($40k) and said he can discount it 10% if I buy today. thats a scam.

    Georgia Waterproofing Tree Service - Cables wrapped back and forth on both sides of fence poles

    Georgia Waterproofing Tree Service

    (9 reviews)

    Update 10-2024 I have to redo the drainage work that was to…read morebe done with my retainer wall rebuild. The corrugated pipe is already filled with dirt not draining which means if I had decided to dig up a section to check on it why that area of yard seem to flood after all hurricane rains. I would be having to the wall rebuild again very soon. The end work shows a lack of pride in what they do. Regeeting selecting them for my repair/replacement work to my retainer wall. Sloppy concentrate work. Exposed rebar. NOT STRAIGHT in putting my fence back in place.

    I requested service for a brand new house build that I purchased in 6/2024. There were 3 French…read moredrains in the backyard placed during the build. On the first rain, the entire backyard was flooded and the drains were full of water and not flowing. GA-W came to assess the problem including the gutter downspouts, all the drains and the front yard. He determined that the slope used for the drainage lines were inadequate and ultimately not draining at all. He gave me a quote that seemed fair from what I had heard from other services. The job was completed exactly as laid out with installation of new Drains, new drain lines that were larger (4" to 6") and were dug deep enough to provide an appropriate slope for runoff all the way to the street in the front yard. Showed me before completion of the job the water draining well through the drain system to the road. Even filled in a large hole in the front yard leftover from the original build with additional dirt. All the grass was replaced in such a way that I could not even tell they had dug a 4 foot trench from the back to the front. They cleaned up the entire yard of dirt and debris. Even asked that I run the sprinklers to ensure no damage was done to the sprinkler system (something I have experienced 3 times with other services in the past damaging my sprinkler system with fence installation and other digs). The job was performed exactly as planned from the original quote, promptly, with very polite staff, and I would highly recommend for anyone with this particular issue.

    Knoble Engineering - LVL Beam Installation

    Knoble Engineering

    (6 reviews)

    I wish I had more of an experience to share. I reached out through Yelp asking for an estimate on a…read moreretaining wall project for my house. I got a prompt reply from someone named Chad, which was promising since he was so quick to respond and let me know that he could call me on Monday to discuss (this was a Friday) or I could call their office. I thanked him for his quick response, gave him my contact information, and told him I looked forward to hearing from him on Monday. Well, Monday came and went and I heard nothing from anyone, so I called the number that was listed in his reply and left a voicemail asking for a call back to schedule an estimate or discuss further. It has now been more than a month and I still haven't heard from this company. If they are this bad at communicating from the start, I would not have high hopes for actually working with them. I was disappointed since the Yelp reviews were promising. I'm glad that others have had better experiences with Knoble Engineering and was hoping I would be able to add to their positive reviews, but unfortunately that was not the case. I don't feel it makes sense for me to chase someone that I am trying to give my business to. Luckily, I found another engineer for my project that has been far more responsive.

    I had a short notice request and Josh and Chad were able to fill my request for a structural…read moreinspection out in Villa Rica. Their second look inspection on my potential home purchased help identify a fair amount of issue that allowed for a significant price reduction on the home. They did an outstanding detailed job and explained everything very plainly. I would highly recommend them for any inspection needs or structural engineering design/support.

    CGS Waterproofing & Foundations - waterproofing - Updated June 2026

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