Concrete patios that are out of level will often appear that way to the naked eye.  In many cases, the patio will have sloped back toward the home, which can result in interior or basement flooding.  In addition to flooding issues, an improperly sloped concrete patio can be the cause of basement dampness, termites, and eventual foundation problems such as settling and sinking. To learn more, contact us now.


Visually obvious alignment issues
Water collecting against the house

How We Repair

The service to fix a sinking or uneven concrete patio involves URETEK Deep Injection® (UDI) of our polymer resin under the affected areas.  We typically inject directly beneath the patio at two depths to densify the soils and lift the structure back to a grade that provides ¼” of slope per foot away from the house.  Then, based on the original condition of the patio and the process we used to address the problem, will typically provide the homeowner with a guarantee.

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Our proven UDI application is also the preferred method for stabilizing weak soils and lifting settled parking lots and paved public spaces.

The UDI Advantage


UDI requires no excavation, and projects can often be completed in hours or days. Traditional repair methods often involve excavation, and the time required for project completion can be weeks.


The repair process is priced consistently below alternative repair methods, and implementing repairs now significantly reduces further repair costs down the road.


URETEK’s 486 Star polymer is specially formulated for stability and strength, even in the harshest environments. Our polymer is hydro-insensitive, and UDI is warranted against loss of dimensional stability or deterioration.


URETEK’s 486 Star polymer material has been used to successfully complete over 100,000 projects nationwide. The lightweight, expansive geo-polymer material not only realigns concrete pavement but also addresses the problem at the source – weak soil composition – giving customers a long-lasting solution.

Minimally Disruptive

Unlike other repair methods, UDI is minimally disruptive and requires no excavation.


Liability risk is greatly reduced with UDI due to an inherently safer working environment without deep excavation or heavy equipment. The process and material are eco-friendly and meet today’s high environmental standards.

Contact Information

Main Phone


International Calls


Corporate Headquarters

13900 Humble Road
Tomball, TX 77375