Sagging floors, musty smells, and sticking doors usually start under the house. We repair the posts, piers, and drainage in your crawl space and put the warranty terms in writing.
A local specialist will evaluate your foundation, walk you through the findings, and send a clear estimate. No cost, no pressure.
If your home sits on a raised foundation, there is a crawl space under your floors, a low area between the ground and the framing where wood posts, concrete piers, and girder beams carry the weight of the house. When that system weakens, you feel it upstairs: floors that sag or bounce, doors that stop latching, a musty smell that never quite airs out. The cause is almost always one of two things. Moisture gets in through poor drainage or grading and rots the wood supports, or the clay soil under the piers moves, because clay acts like a sponge, swelling when wet and shrinking when dry, and the supports ride that movement until they lean or sink.
Dalinghaus Foundation Repair's crawl space repair solutions address the whole system, not just the symptom. Depending on what the evaluation finds, that can mean replacing rotted posts and pads, installing steel crawl space jacks to lift and level sagging girders, repairing stem walls, correcting the drainage that let water in, improving ventilation, adding root barriers, or seismic retrofitting that ties the structure to its foundation.
The work happens inside the crawl space, so most repairs cause little disruption to your household, and many are finished quickly once the plan is set. It starts with a free evaluation: a specialist enters the crawl space, documents the supports and moisture conditions, measures your floor elevations, and gives you the findings in writing whether or not you hire us. Since brothers Brian and Brad Dalinghaus founded the company in 2011, we have completed more than 2,000 projects across California, Arizona, and Nevada, and crawl space repair has been core work the entire time. If your crawl space shows these warning signs, schedule your free evaluation.
Photos from our own crews and projects. Swipe or use the arrows to see more.
Pick the symptom that best fits. We'll tell you what it likely means and where to go next.
Most crawl space repair problems start as small symptoms. Catching them early is the difference between a small, planned fix and a major reconstruction. These are the warning signs we see most often.
Dalinghaus installed the helical pile foundation and erected the structure for a solar canopy over a staff parking lot in Southern California, working in four phases so the lot stayed open.
Show project
The back of an Irvine home had settled about 3 inches over roughly ten years. Ten helical piers went in over two days, and a 30 minute lift brought the back half of the home up 3 inches.
Show project
A hillside home in Rancho Palos Verdes split in half as the ground slid toward the slope. Dalinghaus installed helical piers about 30 feet down to competent strata or bedrock beneath it.
Show project
A beachside home in Rancho Palos Verdes settled 16 inches in a couple of months. Steel piers were driven to load bearing soil or bedrock at each excavated location, with a lift planned once they were in.
Show project
A San Clemente hillside home had settled about 2 inches and was moving toward the slope behind it. Vertical helical piers and helical tieback anchors stabilized the home and recovered part of the drop.
Show project
Two helical deck piers let a San Clemente hillside deck grow by about 12 feet, at a home Dalinghaus had lifted about 16 inches earlier.
Show projectDalinghaus Foundation Repair is locally owned and operated, with crews dedicated exclusively to foundation, concrete, and crawl space work across California, Arizona, and Nevada.
Foundation repair, concrete leveling, and crawl space repair are our entire focus. Not a sideline.
More than 2,000 projects on the clay and desert soils of California, Arizona, and Nevada since 2011.
CSLB License #983851 in California, ROC #330307 in Arizona, and License #0089738 in Nevada. Look us up with the state before we ever set foot on your property.
Warranty terms come in writing with every proposal, and the terms that apply to your job are stated in that job's paperwork. Ask your project specialist during the free evaluation.
Don't see your question here? Our team is happy to help. Reach out anytime.
The signs show up in your living space first: floors that sag, slope, or bounce, doors that stick or will not latch, gaps at baseboards, and musty odors coming up through the floor. Under the house, the telltales are leaning or shimmed posts, rotted wood, standing water, and piers that have cracked or sunk. Any one of these is reason to have the crawl space evaluated.
A straightforward path from free evaluation to completed repairs.
A local specialist visits your home, evaluates the foundation, and answers your questions on site. No cost, no obligation.
We provide a clear, written estimate with a scope of work tailored to your home's specific issues.
Our crews complete the work on schedule, with the findings and scope in writing from the first visit.
A 4.9-star average across Google, with verified reviews from the homeowners we work for.
Share a few details and a local specialist will follow up as soon as possible to set your evaluation.
