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PolyRenewal injection for concrete repair

PolyRenewal™ Injection

With PolyRenewal™, we can quickly restore the appearance and safety of your concrete without the mess or cost of replacement or traditional mudjacking.

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We provide fast, effective concrete repair in Greater Denver

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PolyRenewal™ geotechnical capabilities:
  • Lift settled slabs and slab foundations
  • Lift and level sunken sidewalks
  • Strengthen and stabilize loose soil
  • Fill sinkholes and other voids
  • Lift, level and stabilize roadways and airport runways
  • Repair and stabilize rail beds weakened by soil washouts
  • Treat soil to improve load-bearing characteristics in preconstruction applications

The stability of any concrete surface is dependent on the soils beneath it. The weight of concrete and what it supports, combined with natural soil erosion, can lead to sunken and uneven concrete surfaces. This process affects everything from your driveway and sidewalk to roads and airport runways.

Complete Basement Systems provides expert concrete repair solutions using the PolyRenewal™ system. PolyRenewal™ is an expanding polyurethane foam that is injected beneath the concrete to fill the gaps caused by soil erosion and raise and stabilize the concrete surface.

PolyRenewal™ Injection


There are many reasons you might experience concrete sinking in your home. You must be able to understand the reasons for concrete sinking so that you can more accurately tackle concrete sinking problems. 

  •  Improper Preparation 

One potential issue you might run into comes about if the initial construction crew didn’t prepare the area properly. If your construction crew ran into problems while preparing the area for the concrete, it’s likely they poured concrete over weak soil, which can easily create concerns as the concrete settles. It’s not likely, but it is a possible concern. 

Remember that the initial construction of your home has a significant impact on the home’s overall health. If the home got its start with shoddy construction, you’re more likely to see serious problems down the line. Make sure you’re paying attention to this, especially if you’re overseeing the construction of a new home. 

  • Issues with Erosion 

Have you noticed that there’s more rain or flooding in the area than usual? Are rain and water more prominent than they typically are? If this is happening, that water might be moving underneath your home’s concrete, causing soil erosion and creating possibilities for that soil to sink over time. This can be a significant reason for the concrete sinking. 

Sinking also tends to be more prominent in certain areas of your home, most commonly the patio and the kitchen. The kitchen is a place where you may end up with too much weight on top of a concrete slab because homeowners love to install beautiful kitchen counters that can also be extremely heavy. The patio may also have issues with weight if you choose to install full patio counter sets.

If you’ve ever seen traditional concrete lifting, you might raise your eyebrows at the concept that a lightweight foam could be effective in concrete lifting. Polyurethane foam injections are a great option for concrete lifting. 

  • A More Effective Lift 

With PolyRenewal™, you can be certain that you’re getting a lift on your concrete slabs. That’s because PolyRenewal™ expands, filling the entirety of the open area underneath your concrete slab and pushing it up to its initial position. Slabjacking and mudjacking won’t lift the concrete slab. The best they can do is prevent it from sinking further. 

When you use a traditional concrete filling, you also have to wait for the concrete to set before you can use the area again. If you’re planning to lift a concrete area like a driveway or walkway, which are both high-traffic areas, you’ll need to wait for the concrete filling to set before you can use it. With polyurethane foam injections, however, you don’t have to wait at all almost. 

  • Simple Application for an Expert 

If you have an expert apply the PolyRenewal™, it’s a simple application. You don’t have to worry too much about there being an issue with PolyRenewal™ application in the same way that you might have to worry about concrete filling issues. Installing PolyRenewal™ only requires a small hole in your existing concrete. 

However, this doesn’t mean the process is simple enough for anyone to do it. Remember that polyurethane foam injections require the installer to mix the polyurethane foam, inject the appropriate amount, and make sure the concrete stays clear until it’s set well enough to use it. Despite its ease of installation, you should still allow an expert to do it.

Most of the time, you will have seen concrete lifting as slabjacking or mudjacking before. In this process, a construction worker will pour a concrete slurry underneath the sunken concrete. How is PolyRenewal™ better than this method of concrete lifting? 

  • Curing Time 

Concrete slurry typically requires a long time to cure. It often takes as much as 14 days for concrete slurry to cure and even just curing concrete enough to use it lightly can take multiple days. That means you need to block off the area for at least a few days, if not a few weeks. It’s a headache to do in a residential area, much less a commercial one. 

On the other hand, you can start using concrete with PolyRenewal™ after only about 30 minutes, at which point it will have reached 90% rigidity. That means the concrete repair team may even be able to keep people away from the area for long enough to let the polyurethane foam injections set. It’s a quick and easy solution. 

  • Lifting, Not Sinking 

When you’re lifting sunken concrete, what you’re doing is filling a hole that’s opened up underneath the sunken concrete for one reason or another. Concrete slurry can’t fill that hole completely and will just form a cone underneath it, supporting it but not lifting it. Because polyurethane foam injections expand after pouring, they’ll lift the concrete back to its initial position. 

Concrete is notoriously heavy, and that goes double for the concrete slurry that slabjacking and mudjacking typically uses. This slurry can weigh hundreds of pounds once you’ve poured it, which increases the weight on the soil underneath the slab and can worsen the problem. However, PolyRenewal™ is lightweight, making it easy to install and manage.

In general, the process of installing PolyRenewal™ is relatively simple. However, that doesn’t necessarily mean that just anyone can do it. It’s important to think about the process of installing PolyRenewal™ when you’re trying to figure out who to entrust it to. 

  • DIYers 

Many DIYers wonder if they can install PolyRenewal™ by themselves, especially those that take pride in their DIY expertise. However, DIY polyurethane foam injections rarely go well. You need to know how to mix the polyurethane foam, how to inject it, and how to make sure it lifts the proper amount, which are all specialized pieces of knowledge. 

In many cases, a DIY approach to polyurethane foam injections will just result in a giant mess. You might have to clean botched polyurethane foam off the concrete, which can be annoying and frustrating. It’s also going to be more expensive than just hiring an expert from the beginning, making it a useless venture. 

  • Experts 

These DIY problems are exactly why it’s a much better idea to entrust polyurethane foam injections to the experts. A concrete lifting expert can help you lift the concrete more easily and effectively, without having to worry about all sorts of problems that you might otherwise run into. There are all sorts of reasons that you might be having concrete lifting problems in your home. You shouldn’t have to deal with them alone. Instead, schedule a free inspection through Complete Basement Systems. You’ll get more accurate information about what’s going on with your home’s concrete.

Reasons to choose PolyRenewal™

  • Strong but light: PolyRenewal™ weighs only about 4lbs. per cubic ft., compared to 120lbs. per cubic ft. for standard fill material. PolyRenewal’s light weight makes it useful where denser fill material might impose an undesirable load on weak soils. Despite its light weight, PolyRenewal™ can support substantial loads; it typically provides greater lifting power than mudjacking.
  • Waterproof: Once cured, PolyRenewal™ will not wash away. PolyRenewal’s waterproofing properties can be beneficial in certain applications.
  • Stable and inert: PolyRenewal™ does not react with soil or moisture; it will not leach harmful chemicals into the soil.
  • Quick curing. Downtime is minimized with PolyRenewal™ concrete repair. Full loading of the foundation, roadway, or other structural element can usually happen about 15 minutes after the material is injected.
  • Adjustable: Adjusting the density and expansive force of the 2-part foam affords a wide range of geotechnical uses. Lifting force can be adjusted by fine-tuning the chemical reaction that causes the foam to expand. An experienced applicator can factor not only the weight of the structural element but also soil characteristics and temperature and weather conditions. Special formulations are possible for applications where water must be displaced.
  • Noninvasive: PolyRenewal™ injection equipment isn’t bulky, enabling applicators to access confined areas. When properly injected, PolyRenewal™ is not as messy or disruptive as other slab and foundation-lifting techniques.

Contact Complete Basement Systems for expert concrete repair

Ready to see why PolyRenewal™ is the superior choice for concrete leveling? Complete Basement Systems can provide you with expert concrete lifting and leveling services for all types of residential and commercial purposes. Call us today or contact us online to get started with a free estimate in Denver, Colorado Springs, Aurora, Littleton, Cheyenne, Fort Collins, Thornton, Arvada, Westminster, Lakewood, Boulder, Greeley and the surrounding areas.

Serving Greater Denver area, Colorado Springs, Eastern Colorado, and parts of Nebraska and Wyoming

Colorado Springs, CO

707 County Line Rd.
Palmer Lake, CO 80133

Denver, CO

4686 Ivy St
Denver, CO 80216