Foundation crack repair in San Diego. The right material, the first time.
Not every crack is a structural crack, and not every crack needs the same fix. Hairline shrinkage cracks at the slab edge are cosmetic. Diagonal cracks at door corners are structural. Active leaking cracks need hydrophobic polyurethane, not epoxy. We assess the crack, identify the cause, and inject the material that solves the actual problem.
What's included in this service?
- Crack typing: shrinkage vs settlement vs lateral movement
- Structural epoxy injection (Sika 35 Hi-Mod LV or equivalent) for non-active cracks
- Hydrophobic polyurethane injection for actively leaking cracks
- Carbon fiber straps and stitches for lateral cracks in stem walls
- Surface routing and patch for cosmetic hairline cracks
- Crack monitor installation for any crack we choose to watch instead of repair
- Photo documentation before, during, and after every injection
When do you need this service?
- A crack wider than the edge of a credit card (about 1/16 inch)
- Water seeping through a crack during or after rain
- White efflorescence or salt deposits along a crack line
- Cracks that have widened or lengthened in the last 6 months
- Cracks with vertical offset (one side higher than the other)
- Cracks at door or window corners running diagonally outward
What do homeowners ask about Crack Repair?
Should I use epoxy or polyurethane?
Epoxy bonds the two sides of the crack back into a structural unit, but only if the crack is dry and stable. Polyurethane expands when it contacts water and seals against active leaks but does not restore structural strength. If the crack is dry and the foundation is not actively moving, we use epoxy. If the crack is wet, weeping, or active, we use polyurethane and address the underlying movement separately.
Can I just use a DIY crack kit from the hardware store?
For a hairline cosmetic crack on the inside face of a stem wall, a DIY kit is fine. For anything full-depth, anything weeping, or anything you suspect is structural, the DIY kits do not put enough product into the full depth of the crack. They seal the surface and the crack reopens behind the patch.
How do I know if a crack is structural?
Diagonal direction, vertical offset between the two sides, width greater than 1/16 inch, location at door or window corners, and any crack that runs through both sides of a wall are all structural-suspect signs. Cosmetic shrinkage cracks are vertical, hairline (less than 1/32 inch), evenly spaced, and tend to appear in the first year after a pour.
Will the crack come back?
Only if the cause is unaddressed. Crack injection bonds the existing crack permanently, but if the foundation is still settling, a new crack will appear nearby. That is why we always look for the cause before we inject. If movement is active, we recommend underpinning first, injection second.
Where do we offer Crack Repair in San Diego County?
We provide crack repair in every city and community in San Diego County. Pick your city for local climate notes and service specifics.
See crack repair in all 48 cities
Homeowners who hired us for this
Examples of the kind of feedback we work to earn on every job. Verified reviews from real customers live on our Google Business Profile and Yelp pages.
Cracks at our window corners had me convinced we needed major repairs. Their inspector did the level survey, mapped every crack, and told us straight up the foundation was stable old movement and we did not need underpinning. Free inspection, honest answer, no pressure.
Got three quotes for foundation work. Two pushed full perimeter underpinning, Base Pro recommended four piers at the settled corner only and saved us $18,000. Engineer signed off, permit pulled, work was clean. House is solid two years later.
Active leak through a foundation crack after the January storm. They came out, identified it as a non-structural water issue, injected hydrophobic polyurethane, and pointed out that our downspout above the crack needed an extension. Both fixes done in one visit, leak gone.
Need crack repair in San Diego County?
Call for a free quote. Most work scheduled within the week.