"Donald and Guiles came to complete a job at my home in Granby, MA in September 2026. They were extremely professional from start to finish. They arrived on time and took the time to thoroughly explain everything before beginning the project. Throughout the process, they kept me informed and made sure I understood what was happening every step of the way. They worked slowly, carefully, and thoughtfully to ensure the project was completed without causing any damage to my concrete slab. They also pitched my slab perfectly, which was very important to me. I truly appreciate the care, attention to detail, and professionalism they put into the entire job. I would highly recommend them!"
"Thrasher did an excellent job repairing our driveway. They leveled out the entire driveway with amazing precision, and they fixed all the gaps with an attractive sealant that blends beautifully with the concrete. All of the team members I interacted with were professional and polite. I am very pleased with the results and only wish I’d called them sooner."
"Our sump pump broke and the line froze, so they replaced it with a triple pump system with freeze guards that keep the water from freezing outside and blocking the line. The new sump pump system is so much nicer, bigger, and SO quiet. The electrician, Greg, went out of his way to find a circuit with one item on it and tied into that so we did not need any drywall ripped up...very nice. We have also been battling a basement leak for almost ten years. Jason came and identified the problem and the required fix, then went above and beyond to make sure that all the prep work was done properly and that we were satisfied with what was about to happen, he even came and helped the guys for a while! Mel and his team came, dug up the concrete, and laid a drainage system across one wall of the basement, and took it into the sump pump. At first, I was scared to death listening to all the jackhammering, but from the minute they walked in, the guys were so conscientious about doing everything right and without major upset to our house, it put me right at ease. They were very fast, and the finished product looks amazing, so professional and clean. The entire experience was unbelievable, they all were so helpful, pleasant, knowledgeable, professional. I would recommend Thrasher, hands down, to anyone with any type of basement issue!
Concrete Mudjacking questions, answered by experts
Yes, you can mudjack cracked concrete, but the cracks will need to be repaired once the concrete has been leveled. If the concrete is severely cracked in multiple places, replacement may be a better option, but for less severe cracking, mudjacking is a good solution as long as cracks are correctly caulked and sealed.
Polyjacking can be a permanent solution to sunken concrete if you also address the underlying issue—like poor drainage—at the same time. The polyurethane material itself can last as long as or even outlast the concrete you’re lifting it with. Your sunken concrete issue will likely return if you don’t couple polyjacking with proper drainage to prevent future soil movement and sinking.
Mudjacking restores level surfaces, prevents further damage, and is more cost-effective than a full replacement.
Yes, expanding foam (also known as polyurethane foam) can lift concrete. This approach, called polyjacking, involves injecting the foam rather than concrete slurry to fill voids and raise the concrete slab back into place. It’s often faster and requires smaller drill holes than traditional mudjacking, though it may come at a higher cost. Some contractors also prefer polyjacking over mudjacking for more damaged and delicate slabs.
Pros often use mudjacking or polyurethane foam injection to level a sunken concrete patio. Both methods lift the slab by filling voids beneath it. After properly compacting the soil beneath it to prevent future settling, the concrete may need to be removed and re-poured for severe sinking.