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"Real Seal are very professional. Came out when they said, sent estimate and set up to have work done in a timely matter. The technician sealed two cracks in our foundation crawl space. Did a excellent job and was very friendly and knowledgable. I will be using them again for another crack."

"Outstanding work! Showed up at the time promised, very professional, did an exceptional job."

"I am very impressed and extremely satisfied with the professionalism, expertise, competence, and customer orientation the whole Perma-Seal team displayed during recent work completed on sidewalk leveling and basement sealing projects on my home. Work scope, costs, and timing were explained patiently and in detail by George Heller up front. The sidewalk leveling work from Doro went routinely, everything on time with excellent results. The basement sealing work was a bit trickier, as electrical wires and a pipe bundle all bunched together around the main sewer line provided multiple leak paths and required a second attempt to completely resolve. Doro, Ramon, and Waldo went beyond the originally contracted scope to ensure all potential leak paths were sealed off. They didn?t care what the contract said, their focus was on my complete satisfaction, no excuses, no shortcuts. Perma-Seal stands behind their commitments and I would not hesitate to call on them again."

"Good work in general; our basement no longer sees water for over 3 years now, which is the most important thing. But there were some real issues: The biggest issue is that USW did not adhere to local electrical codes, and did not arrange for a final inspection of the project. So we didn't find out that it wasn't to code until years later, and now it's a big hassle and minor cost to fix and get the permits. Ask your local gov yourself what you need to do for permits and inspections; don't rely on USW! USW said they would seal any foundation cracks found along the way; they didn't do this until I bugged the warranty dept about it (but they did do it eventually). USW sent someone out for the "annual checkup"... over 2 years after the install. It's a good thing they (eventually) did, because they discovered the backup battery wasn't charging. Now I know to check this stuff better myself. Prices also vary wildly and are kind of negotiable (I'd give more detail but I'm out of space)"

"They did an excellent job in a very timely matter, and very competitive rates!!!"

"crew was great"

"Raise-rite did an excellent job. They worked quickly and neatly. Very nice finished work."

"Steve Gavin, the owner came out and provided me with a great price that was inclusive of the entire scope of the project. During our meeting he took the time to explain the process that his company uses. Once the permits were issued the crew arrived the next morning at 7:00 a.m. as promised. The crew met the deadline for a 1:30 inspection from the Village of Deerfield. They not only met the deadline but they passed the inspection without any issues to be corrected. The crew worked until 7:00 p.m. completing the job. I would also note that they left my home spotless!"

Additional phone number - (847) 382-2882. Additional DBA - United Structural Systs of IL.

Yellow Square Corporation is a family corporation established in 1999. The company is founded on the principles of hard work, dedication and commitment. After 13 years, Yellow Square Corporation continues to maintain a standard of excellence in safety, job quality, employee relations, and community involvement. Yellow Square Corporation provides full-service general contracting services for clients in the commercial and public building sector. We know the industry, and we know how to skillfully complete your project to your specifications, timeline and budget.