The direct answer is that a foundation inspection checklist starts outside with drainage and grading, then moves to exterior cracks and brick patterns, then inside to doors, windows and floors, and finishes with the crawl space or basement, the utilities and a written record. Work through the list in the same order every time, photograph what you find, and call a professional at once for horizontal cracks, bowing walls, cracks wider than 1/4 inch, or active water.
Start outside with drainage and grading
Water is the most common cause of foundation movement, so start where water meets the house. Walk the whole perimeter and look at the ground next to the foundation. The soil should slope away from the house so rain runs off, not toward it. Look for low spots, pooling water after rain, and mulch or soil piled against the wall above the foundation line. Check the gutters and downspouts next. Gutters should be clear, and downspouts should carry water well away from the foundation, not dump it at the corner. Look at the driveway, patio and walkways for slabs that tilt toward the house, because they can send water straight to the wall. If you find a drainage problem, fix that first and write it on your list, because a foundation repair without drainage repair is fighting water that will return.
Read exterior cracks and brick patterns
With drainage checked, look closely at the foundation wall itself and at any brick above it. Hairline vertical cracks are common in concrete and often come from normal curing, but they still deserve a photo and a date so you can watch them. Step cracking in brick, where the crack follows the mortar joints in a stair step pattern, points to settlement on one side, and the direction of the steps tells you which side dropped. Diagonal cracks near corners often point to the same kind of movement. Horizontal cracks are different and serious, because they suggest soil pressure pushing the wall inward, so a horizontal crack is a call a professional at once item, not a watch and wait item. Look at the slab edge where it meets the ground and note any offset. A slab edge offset over 1/8 inch matters, because it shows one section has moved relative to another.
Check doors, windows and floors inside
Inside the house, the doors and windows tell you what the foundation is doing. Open and close every interior door and window. A door that sticks, rubs at the top on one side, or will not latch is often a sign that the frame has shifted. Check the floors next. Walk slowly across each room and feel for slopes, dips or a bounce underfoot. A marble or a small ball placed on the floor will roll toward the low side, which is a simple way to confirm what your feet feel. Use a 6 foot level on the floor in several rooms, and write down where the bubble sits and how far the floor drops. Look at the ceilings and the wall joints for cracks, especially where walls meet ceilings and where drywall tape has split.
Measure carefully and photograph everything with dates
A checklist is only useful if the findings are recorded, so measure and photograph as you go. Use a tape measure for crack lengths and a ruler for crack widths, and write the numbers next to the location, such as the north wall of the living room or the east corner of the garage. Use a 6 foot level on floors and on the slab edge, and record the readings in a notebook or a phone note. Photograph every crack with the date turned on, and photograph the same cracks again after a few weeks or after a heavy rain, so you can see whether they are growing. A crack that stays the same for months is stable, while a crack that grows is active and needs attention sooner. Keep a simple log with the date, the location, the measurement and the photo, and keep it with your house records.
Check the crawl space or basement for moisture and wood condition
If the home has a crawl space or a basement, include it in the inspection, and do not skip it because it is hard to reach. Look for standing water, damp soil, white mineral stains on walls, and any musty smell that suggests moisture is present. Check the wood framing, joists and subfloor for softness, staining or rot, and press the wood gently with a screwdriver to test whether it is sound or soft. Look at the posts and piers under the floor for leaning, cracking or sinking into the soil. Check the vapor barrier if one is present, and note any tears, gaps or areas where it has pulled away. For moisture under the home, our crawlspace encapsulation guide explains how moisture control is handled.
Check utilities, the sump pump and the warning signs that need a pro at once
Finish the inspection with the utilities and the warning signs that end the checklist and start a phone call. Look at the water heater, the main water line and the visible plumbing for leaks, drips or stains, because a slow plumbing leak under a slab can soften the soil and move a foundation over time. Check the sump pump if the home has one. Pour water into the pit and confirm the pump starts, moves the water out, and stops. Then run through the warning signs. Call a professional at once for horizontal cracks, bowing or leaning walls, cracks wider than 1/4 inch, doors and windows that suddenly will not open, floors that slope sharply, or active water entering the home. These signs point to movement that is still happening or to a structural risk, and they are not a watch and wait matter. For a possible leak under the slab, our slab leak detection guide explains how a hidden leak is found.
A lesson from checking in the same order every time
The most useful lesson from a foundation inspection checklist is that the order matters as much as the items. Drainage first, because water causes most movement. Exterior cracks next, because they show the pattern. Doors, windows and floors after that, because they show how far the movement reaches inside. Moisture and wood last, because they show what the movement is doing to the structure.
Frequently Asked Questions
How often should I inspect my foundation?
Walk the checklist once or twice a year, and again after a long dry spell or a heavy rain season, because soil movement often follows changes in moisture.
Which crack patterns should I worry about most?
Horizontal cracks, bowing walls, step cracking in brick, and cracks wider than 1/4 inch are the patterns that call for a professional at once. Hairline vertical cracks are common, but they still deserve a photo and a date.
Can I use a level to check my floors myself?
Yes. A 6 foot level on the floor shows slopes and dips clearly, and a marble or a small ball will roll toward the low side. Record the readings with the room name so you can compare them later.
What should I do if I find active water in the crawl space or basement?
Stop the inspection of that area and call a professional.
Call for a Clear Next Step
If your inspection found a warning sign or a crack that is growing, talk through what you recorded first. Call +1 (972) 472-8573 to discuss the next step for your home in Little Elm.