Mudjacking uses a cement slurry, while polyurethane uses lightweight expanding foam. Both lift slabs, but polyurethane is less invasive and longer-lasting.
Sunken concrete doesn’t always need replacing. Slabjacking restore slabs quickly and affordably by filling voids beneath the surface and lifting concrete back into place.

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Slabjacking is a time-tested process of lifting sunken or uneven concrete by pumping a specialized material beneath the slab. This fills voids, stabilizes the soil, and raises the concrete back to its proper level. It’s a faster, less expensive alternative to tearing out and replacing concrete.
This method is ideal for sidewalks, driveways, porches, and other flatwork where soil settling has caused sinking or cracking.
Mudjacking uses a cement slurry, while polyurethane uses lightweight expanding foam. Both lift slabs, but polyurethane is less invasive and longer-lasting.
It corrects unevenness and prevents further cracking, but existing cracks may still need sealing.
It’s often less than half the cost of tearing out and replacing concrete.
When done correctly, slabjacking provides long-term stability and can extend the life of concrete by decades.
Soil erosion, poor compaction, heavy rainfall, and plumbing leaks are the most common culprits in Western Washington.
Yes. Our methods are designed for high-load areas and can restore proper grading for safe vehicle traffic.
Not at all. The process requires only small injection holes, leaving minimal impact to your lawn or surrounding landscape.

If you’re unsure whether polyurethane is right for your project, we can help. Reach out today to get expert advice and a free inspection.
Posted on Google
Birte NielsenTrustindex verifies that the original source of the review is Google.
Great service; fast and efficient. R&R lifted our sinking driveway today and did a great job. The tech, Austin, was very easy to work with and kept us informed about the process. We would highly recommend this service should the need arise.Posted on Google
John StrohscheinTrustindex verifies that the original source of the review is Google.
R and R foundation specialist were great! Cody, Diego, and team did a professional and thorough job, from installing the helical piles to final cleanup. They were very communicative, friendly, and answered all of my questions. Would recommend them for any future foundation stabilization jobsPosted on Google
Paula ChristiansenTrustindex verifies that the original source of the review is Google.
In October of 2025, we signed with R&R for the stabilization of our foundation. Jordan Ortega took full measurements of the necessary levels in our home, listened carefully to our desires and concerns, explained what we could expect, and worked with me via email to adjust the contract to the level of clarity that we needed. R&R handled the permitting with King County and the City of Kirkland, and in February work began. The team leader, Kyle, was excellent about communicating what he planned to have happen when; and when things didn't go according to plan, he was prompt about communicating what had happened and what the new plan was.Posted on Google
Todd HumphreyTrustindex verifies that the original source of the review is Google.
R and R was great! The salesman was not a salesman but someone who looked at our issue and made recommendations that made sense. He did not try to sell us something we did not need or ask for. The crew was on time, thoughtful, respectful and did a great job. They finished on time with no issues, and cleaned up after the job was complete. A very professional company I would highly recommend that you at least give them a chance. My wife and I are glad we did.Posted on Google
Dana SmithTrustindex verifies that the original source of the review is Google.
Update 4/12/26 The company reached out to us, came to our home and made a plan to properly lift our house. The work was done in a timely manner and we had a much better experience with them this time around. We are very happy with how things turned out. Awful company. We paid over $38,000 to raise our foundation 1.5”. It started cracking and they were unable to do what they said they could. They “stabilized “ it and left with our savings. It was the biggest waste of money and I suggest you go elsewhere. Garbage. Our house feels like it’s sinking more.Posted on Google
Longitude 120 Engineering & DesignTrustindex verifies that the original source of the review is Google.
If you need foundation repair, R&R Foundation Specialist should be your first call. Their team is one of the most reliable and professional that we have had the privilege to work with in the industry. We regularly refer clients to Cory and his extremely hard working and well trained staff, for all foundation repair, retrofit, lifts /stabilization needs.Posted on Google
Kirsten BurtTrustindex verifies that the original source of the review is Google.
So I had some work done by r and r back in 2019. I had six piers put in and really enjoyed Corey the owner… fast forward to 2026 and the other part of my house started having weird sounds and a crack in my ceiling… I live on a hillside and tons of water comes my way and a user error with a downspout may have caused more issues… I made an appointment to have him come Out and do an inspection with a bid…. It’s pretty rare these days to not feel like you have gotten taken… Cory did all the measurements and well it appears the house is just settling. The house was built in 1980 by the original owners and was definitely not built straight. Anyway… Cory literally put me at ease and said. “Let’s just keep these measurements and check them out in a year or so. “He could have easily have just said… “yup. You need six piers….” He didn’t. I highly recommend r and r foundation… thanks for being honest… it goes a long way! Also… when I do need the work done… I, of course, will be using them!
Leveling your concrete doesn’t have to wait. With financing options, you can lift and stabilize your slabs immediately while spreading payments out over time.
Benefits of Our Financing Program:

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