What is better, Poly-Foam, or Pressure Grout?
Greene Concrete Leveling uses both poly-foam and pressure grouting to lift and stabilize concrete, we feel we can answer this question from an unbiased point of view.
First, there is no answer to this question – the question really is, what material is best for YOUR job.
Poly-Foam
There is a lot of talk recently about using poly-foam for cement leveling. This is because there are a lot of newer companies purchasing equipment and advertising their services. One reason that foam is so “popular” is that the equipment is relatively inexpensive. If you own a pickup truck and have 50 – 60 thousand dollars to invest, then you can put yourself in business pumping foam. Conversely, a Greene Concrete Leveling truck equipped properly costs over $200,000; but the material is inexpensive, whereas, with foam, the material is where the expense is. You see this difference in competing estimates, poly-foam can be up to twice as expensive and can even be more in certain situations.
Don’t misunderstand us now, there is definitely an application for pumping foam. It’s just that we raise 10 times as much concrete by pressure grouting than with foam.
Main Differences
Hole Size
The holes drilled using poly-foam are usually 5/8inch in diameter and can be as small as 3/8inch. Pressure grouting holes are about the size of a quarter. Over time, all holes will fade to match the weathered concrete, but in applications such as stamped patios, or nature stone-topped concrete, smaller holes are an advantage.
Amount of Material
Your average residential sidewalk doesn’t take a lot of material to fix, but a garage floor or the slab foundation of your home is a different story. Due to the high cost of material, any job that requires a large amount of fill will be drastically more expensive with poly-foam than with pressure grouting.
Ease of Access
Pressure grouting uses mobile pumps that ferry material from our large truck on the street to the job site. Poly-foam leveling uses long hoses that run from the trailer at the street to the job location. Our pressure grout pumps may not be able to reach a smaller area and have gas engines that are not always conducive for inside use. Poly-foam jobs are limited to the length of the hose that runs from the truck if working on a location far away from where vehicles can access. Mobile pumps with pressure grouting may be able to reach these jobs more effectively.
Contact with Water
Areas such as sea walls, dams, or anything that needs to be raised or stabilized that has direct contact with water would be better suited with foam. Poly-foam is hydrophobic.
Out of Horizontal Alignment
If your walkway, sidewalk or driveway is out of alignment horizontally, the only way to realign the edges is to use pressure grout.
Point of Sale Inspections
Often, homeowners that need concrete leveling as part of their point of sale inspection are looking for the cheapest fix to their problem while still repairing the concrete. Pressure grouting comes with a much cheaper price tag with the same desired outcome: leveling concrete backed by a 10-year warranty.
Wait Time for Car Use
With pressure grouting, we recommend not driving over the work for 24 hours. The work can be open to pedestrian traffic immediately. Poly-foam jobs can be driven on immediately.
For the vast majority of residential work, pressure grouting is the best solution. Greene Concrete Leveling, we offer free estimates to look at your personal situation and see what material is best to solve your problem. Both pressure grouting and poly-foam leveling are back by our Lifetime Warranty.
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