Cracked Foundation Repair 101

Epoxy or Polyurethane?

Epoxies start to cure as soon as the two parts are mixed. Epoxy is not flexible and harder than concrete when cured. Epoxies should not be used in wet areas such as an active leak. The only recommended application is when a structural repair is required, epoxies are not recommended to stop the leak. Epoxy is old technology, with any slight movement in the foundation the foundation prone to crack next to the original crack.

Polyurethane resin is the best way to stop a foundation wall crack leak. The gel time of this two component product can be controlled to allow the liquid resin to penetrate the crack. Once the resin completely fills the crack, it begins to expand. The expanding closed cell polyurethane prevents future water leaks by bonding to both sides of the crack in wet or dry conditions, expanding to create a compression seal. The polyurethane remains flexible so no new foundation cracks form in the same location.

CrackXperts offers both Epoxy and Polyurethane repairs, one of our expert staff would be happy to provide you with the best possible solution to your problem.

Topical or Injection?

Topical repairs cover the inside or outside surface of a foundation crack. There is little penetration into your foundation wall. Topical repairs are not a permanent solution; they are a weakly bonded repair. Hydraulic cement, some epoxies and low pressure sealants are topical repairs.

Injection and specifically high pressure injection with polyurethane grout is the best way to stop non- structural foundation wall cracks from leaking. Although some contractors consider the use of a caulking gun to be injection these repairs are in fact more of a topical repair than injection repair; this low pressure injection may not fill the entire void in the crack resulting in a substandard repair. High pressure injection from the center of the crack is the only way to insure the entire crack cavity is completely filled from the outside wall to the inside.


The Tale of Two Repairs

Our Method of Repair vs Others

CrackXperts Others

High Pressure Injection (up to 7500PSI).

Topical, surface repairs.
Low pressure injection.

Polyurethane Resin Grout with adjustable gel time.
Stays flexible.

Epoxies cure fast, older technology.
Rigid not flexible.
Single stage products can’t adjust dry time may flow away prior to curing.

Repair from the center of the foundation wall out, insuring full penetration of the crack cavity.

Surface topical repair does not fill the entire crack cavity. If a topical repair is completed from the inside water may still enter the crack and when exposed to freezing and expansion re opening crack.

Perform repair in a dry or wet cracks.

Epoxy can only be used in dry cracks.

Wash and condition the crack removing dirt, sand and mud in the crack to promote adhesion of the resin.

Brush the outer service of the foundation wall; this does not remove dirt from within the crack.

CrackXperts fills the crack from its center out, this insures the crack is 100% filled. We install mechanical packers to route polyurethane direct to crack.

Full crack foundation penetration is not achieved.
Low pressure injection depends on expansion to fill crack.

Investing in the best equipment provides superior results. Modern custom high pressure 2 pump systems.

Caulking gun and spray cans.
Surface ports only provide surface repairs and are a temporary fix.

Trained professionals

Local handyman

Leakstop technology allows us to permanently repair cracks others previously repaired both by contractors and DIY.

Once a topical or low pressure repairs has failed it will not work any better utilizing the same process again this is when other contractors’ call us in.

Poured concrete foundation crack repair experts. We fix each crack as if it were in our own home. It is all we do, we guarantee it.

Temporary repair will not stand the test of time.

We have nothing to hide; most floor to ceiling cracks are repaired for $495 with a discount applied to additional crack repairs. We also provide Senior discounts. We thrive on referrals. We are professional and honest; with CrackXperts you get what you pay for and more.

Pricing is kept secret. Quotes usually not given until a salesman can visit your home.