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Concrete Leveling with RetroLift - RetroFoam of Oregon

RetroFoam of Oregon

Call for a FREE Estimate:
(503) 336-9276

Concrete Leveling with RetroLift

Before and After Slab Lift

Don’t replace it, RetroLift it!

RetroFoam of Oregon can restore your uneven and sunken concrete using our RetroLift process.  Our trained technicians can restore your sidewalks, driveways, pool decks and more back to original grade without the time consuming, expensive, and messy process of replacing concrete.

The RetroLift process:

  • Determine the cause of the settling
  • Clearly define the scope of work
  • Protect surfaces and drill small holes into the concrete
  • Inject foam to stabilize soil then lift the concrete.
  • The foam expands, filling voids under the concrete and raising it to its original position
  • The dime-sized holes are patched with mortar
  • Clean the surface and review with the client to ensure their satisfaction
  • When complete, the concrete can be driven on in 15 minutes!

Lift Slab Example

What are the options?

Do Nothing

The problem will grow and the longer you wait, the more expensive the repair.


The process will take several days, is often messy, and is typically more expensive

Lift with Cement Grout

This procedure (known as “mudjacking”) requires heavy equipment, large drill holes and the use of heavy cement grout which may sink over time.

RetroLift with Polymer Foam

Uses light equipment and material, small drill holes and makes less of a mess.

Why structural Polymer foam?

RetroFoam of Oregon uses AP Lift foam by Alchemy Spetec.  It’s strong. So strong it has been used to lift and stabilize railroad slabs.  It’s stronger than crystalline bedrock and can support up to 14,000 pounds per square foot.  Unlike cement grout, foam doesn’t shrink or crack and it lasts for decades. Perhaps most importantly, foam weighs in at 3 to 10 pounds per cubic foot versus 150 pounds per cubic foot for cement grout.  The last thing you want to put on already unstable ground is even more weight.


Why does Concrete Settle and how does Polymer foam solve the problem?


Poor drainage, improperly placed downspouts, leaking drain pipes, and broken water lines are common culprits. Polymer foam helps by reacting with water to cure into a solid mass and reverse the erosion process.

Poor Compaction

When backfilling during construction, the contractor is supposed to compact the fill using heavy equipment.  However, this isn’t always done properly for one reason or another. Polymer foam injection compacts soil to create a strong substrate.

Biological Decay
Construction trash pits, buried trees, and other biodegradable material all break down over time.  Sometimes structures are built over these areas. Polymer foam helps by filling voids before it cures, making it a great solution for biological decay.

Other Service Offerings:

  • Concrete Crack Repair
  • Cleaning
  • Concrete Sealing

We can work on Sidewalks, Pool Decks, Driveways, any concrete slab surface!


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    Call (503) 336-9276 now for a free quote on foam insulation for your home or commercial building!