Get matched with top concrete leveling pros in Windham, NH

"Joe,James and Bobby did an excellent job replacing the sump pump And drains. My husband and I were so impressed with their abilities and how hard working they were. I would highly recommend Ground works Manchester to anyone who needs the same work done. Thanks to all the gentlemen for their professionalism and work ethic"

"Took waaaay to long. 6 months, albeit, we started in late November but it was the nicest winter in history. Promise was late February for completion. I finally conceded in June that they had finally met all contractual obligations. There were several reasons it took so long from my point of view: not showing up when they say they are, poor workmanship requiring lots of rework (all caught by me, not the so called Project Manager), no dedicated project manager, unclear instructions/requirements flowed down to the contractors sent to do the work, company too focused on the next jobs instead of completing this one, etc..I could go on and on...Damaged my driveway and blamed the driveway even though I asked upfront if there would be any harm to it. "No we do this all the time" was the response. Damaged my neighbors lawn and I'm still fixing that. Overall, a bad experience. I'd rate them a "D" but they did eventually fix most of the quality problems. The rest I have, or will take care of. Cutting the ties with this contractor. Would not recommend."

As a highly skilled framer and carpenter with eight years of dedicated masonry experience, I bring a rare and comprehensive understanding of structural development to every project. My background blends the precision of finish carpentry and the durability of robust framing with an extensive mastery of concrete, stone, and brickwork. This unique dual expertise allows me to seamlessly bridge the gap between foundational masonry and structural woodwork, ensuring structural integrity, exceptional craftsmanship, and efficient workflow management from the ground up.

"I recently had my shingle roof replaced and I?m very happy with the results. The team was professional, punctual, and completed the job efficiently. The quality of the work is excellent, and the new roof looks great. They kept the work area clean and communicated well throughout the process. I would definitely recommend them to anyone needing a roof replacement."

"We have had an intermittant water problem in our basement primarily when it rains heavily in the Winter.
I was very happy with the quick response from Mike Sears when we initially called to ask about repairing a water leak problem in our basement.  Mike explained how his proposed solution would work to alleviate the water problem. 
Mike left us with a detailed estimate and informational materials about the proposed repair.  He also explained what wasn't included in the job such as tearing out the current sheetrock, insulation and framing from the wall.  I did  this part of the work and the reconstruction after the drain had been installed.
We spoke to Mike a few days later, agreed to the price and set a date for the repair.
On the scheduled date, two of Mikes employees arrived on time and began to prep for the repair.  They did a good job of hanging plastic sheeting around their work area so that the dirt and dust would not get into the rest of the basement.
We had discovered a crack in the basement wall which wasn't visible when the original estimate was given.  Scott Lee gave  us a written estimate to repair it with carbon-fiber cloth and sealant.  While this was an unexpected expense, there was no reason to put in a drain and leave a crack in the wall.
Taking out a basement floor with a jackhammer and installing a drain is a hard, dirty job.  Scott and his co-worker completed this job in about 6 1/2 hours including the additional work for the wall crack.
They did a good job of cleaning up the old concrete and all working materials 
Scott explained how the pump would work when the water table under the house rose.  
My only issue with quality was the uneven concrete finish work on the basement floor above the drain.  Because this was leveled by hand, there is a somewhat noticeable depression in this area of the floor.
Overall, I am happy with the work and looking forward to a dry basement when the rains come this spring.


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"Our house's cinder block foundation is leaky in key spots and the recent monsoons meant some water got inside the house. Sean came out to inspect and quote. The plan was to remove a French drain to dig a trench, waterproof the foundation, and then put the French drain back. The price was reasonable plus he guarantees his work so that made us feel comfortable. His crew led by Hector, started work a week later by moving the French drain and digging a 5-6' deep trench around the offending area. They stuccoed and then waterproofed the foundation. When a couple of issues came up (as they always seem to in-house repair), Sean came over, assessed, and explained the situation and we agreed on the best way to proceed... and they carried on without missing a beat. Post-job care was good too as a few days after they were done, we had an issue with settling which caused the drain pipe to disconnect from the French drain. Sean and Hector came out to take a look and they put it right that day."

"St John Enterprise provided a professional service at an affordable price. Their communication and customer skills are excellent. They showed up on time and worked efficiently to deliver high quality work. The patio and front step have received many compliments, and truly exceeded my expectations. I will definitely hire these guys again any time I need concrete work done!"

"Stavros and his team were excellent professionals. They scheduled an inspection of a crack in a concrete retaining wall, evaluated my foundation, and were able to schedule the repair within the same week! I appreciated that they both kept me well informed of the process, took pictures of their work, and gave me recommendations for a longer term solution. They were very respectful of my property (I noticed they were even careful not to track dirt into my house and flattened the earth where they had to dig to make the repair). They were also very prompt, worked hard, and made sure that everything was a great experience."

"Overall we are very happy with the workmanship that was preform. In the past we have had our driveway resealed and both times it required two coats. Not this time, it required only one coat, you can tell after a few days of it setting up if it's going to need additional coating. My neighbor inquired as to who sealcoated the driveway I think he was kind of impressed himself he wanted the phone number so I gave him the phone number I haven't checked back with him yet to see if he called but he might be getting his done. We will definitely recall when we need it sealcoated again."

"One word for these guys... Perfectionists !"