We had 5 "smart jacks" installed. Our new home is over 100 years old and we were nervous about jack…read morehammering into the concrete. The cracks in the walls just kept growing and we knew that we had to do something to prevent more damage. The representative, sales person Brian, who came to meet with us for an estimate was very reassuring and informative about what would be done. He said that it was amazing no jacks had been put in previously, the distance between the beams was much too far and the wooden joists were cracking. He provided a comprehensive proposal and was ready to talk with us on the phone before we had the work scheduled to be completed. This was very helpful to calm our worries. The work that was done was, fast, efficient and we are very happy with the result. Chis was our foreman, many thanks to him! I recommend this company very highly. It's hard to trust a company that you might find on the internet. I think that we were very lucky that we were able to find Keystone. We improved the value of our property. Friends and family were uncomfortable with the pricing and it was hard on our budget but the quality and timeliness that Keystone provided was definitely worth what we paid for in my opinion.

One of the worst experiences I've had. Put me into therapy. Terrible Unprofessional. opposite…read moreof expertise.

Not only was their quote lower than any of the others I got, they were able to complete the sewer…read moreproject work within a few days of selecting them. They were prompt, polite, and kind. They left my basement in better condition than it was when they arrived, vacuumed the part of my living room they walked through (even though it was covered by canvas), and even helped me move my car. I can't say enough good things!

From the owner: With decades of experience and expertise, we're the team you can trust to preserve your basement…read moreand keep your home safe. Whether it's residential or commercial, new construction or an old property, foundation repair or waterproofing, we're here to protect your investments. From drainage repair to leak repair to drain installations, we have a variety of offerings to keep your basement secure. We value our clients as much as our work, so we approach every task with reliability and integrity. Stop water issues before they begin with our waterproofing services.

Did a good job overall installing our interior French drain and sump. It's been working greatread more

Internal drain and sump pump. Do not recommend unless you want a team to show up and change what…read morewas written on the contract and a no compliant hook up of a sump pump without addressing that with you.

Love that we have a local waterproofing & foundation repair contractor. Small business, everyone is…read moresuper nice - from customer service to the crew members going on on the jobs. Fast to resolves problems, and will do whatever they can in their scope of service to assist in your needs. Along with what they offer now, soon they will be offering Air Quality services! So be on the look out! What perfect timing too!

I hired Poseidon to fix a leak in my garage. They sent some out and he recommended a system that he…read moreassured me would fix the leak. When the workmen came out the man in charge questioned whether the plan was correct because he thought a drain should be placed in another location in the garage. I asked him to verify before proceeding. He told me he did and that everything would be ok. While putting in the drain they broke a line on my garage door, but I didn't bring it up because I understand electronics and so I fixed it. They left. That night it rained and water leaked into the garage. My wife called the company to find out if that was normal. The person my wife spoke to was rude and they refused to send anyone to our home unless we paid them more money. I called the next day. Again they were very rude and refused to send anyone out unless we paid them more money. While talking to them they slipped up and said that maybe the original plan was incorrect, but that didn't matter because I signed off on it and they had my money. If I wanted it fixed again I'd have to pay them more money. The problem has NOT been resolved and it looks like this is going to court. This company doesn't know how to solve waterproofing issues. If they mess up then they just try to charge you more. All I wanted was for them to stop by and verify the work, but again they refuse unless you pay them thousands more. Please stay away from this company!

NOT, a better choice, anymore!!! I used them to place foundation jacks under a porch 6 years ago,…read morethat , WAS, a good job. HOWEVER, NOW, they came to place another jack to finish the job... the work was shoddy, they did NOT follow direction, they did NOT fix the items they screwed up and their attitudes are piss poor. When I called their office, there were a bunch of excuses and NO ONE will be back to fix the problem!! BEWARE OF THIS "BUISNESS" NOW. They need a new name now... A Lesser Choice!!!

From the owner: Specializing in basement waterproofing, repairing cracked or bowed walls, lifting sinking…read morefoundations, ventilation systems and concrete work.

1st and foremost I cannot say enough great things about this company. Don't walk but run to them…read morewhen you need waterproofing work done in your home. From the 1st person we contacted in the home office Paula who was friendly, exceptional with communication throughout the entire job to Tom the owner of the company who came out to give us the estimate and was as friendly as anyone my wife and I have had dealings with. Lastly the job itself which was being done by Shawn and Nate. Every little detail was covered and if we could go higher than 5 stars we would.

Although I am 2 months late in writing a review I do want to write how the experience was and how…read moregreat in taking care of the flooding in the basement. The crew gets an A+ in the way they took to correct the problem, They were orderly, thorough and when finished the clean up was excellent. They also were very friendly and willing to explain any question we had. I definitely would use them again

One star is too high of a rating ! Did not obtain Permits ,…read morejob was shut down. Poor work, unreliable, dishonest, more problems than can be mentioned here. Do not use this contractor ! Currently filing a complaint with the PA State Attorney General.

G&J put a French drain in my home less than two years ago. First off the workmanship was shoddy…read more The interior discharge pipe is just hanging out of the wall with the cement patch job on the interior side of the hole going to the outside being the only thing holding it in place. The cement patch work, interior and exterior, looks like it was done by a two year old. The "kids" who actually did the work were a couple of non-English speakers and someone who looked to be younger than my grandson. Less than two years later there are large cracks in the exterior discharge pipe. This causes the water that collects in the sump pit to just swirl around and go nowhere. This happens to coincide with a period of recurring rain, often heavy, over the past week. Of course the problem happened over the weekend. I emailed them about the problem on Sunday. To their credit, they did reply to the email. On Tuesday they emailed that someone would come between 10-2 PM the forthcoming Friday. In the meantime my wife and I spent the week (including in the middle of the night) bailing water out of the sump pit. Friday comes and I have to take the day off from work to be here when they come. But guess what? Nobody from G&J showed up and nobody from G&J even called. Instead they emailed me at 1:30 in the afternoon to say that most of their crews had called off because of a big storm the previous night (storm???). I blame myself for hiring these people in the first place. Don't make the same mistake. Stay away from G&J Waterproofing.