Do I Need a Foundation Inspection in North Texas?

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4. Do I Need a Foundation Inspection in North Texas?

Why foundations move in North Texas

Much of the Dallas-Fort Worth area sits on expansive clay soil, the Blackland Prairie clay that swells when it gets wet and shrinks when it dries. A slab or a set of piers resting on that soil rises and falls with it. When one side of a house dries faster than the other, because of sun exposure, a big tree, a dead sprinkler zone or a downspout dumping on the opposite corner, the foundation moves unevenly and the house shows it.

That is why a foundation inspection in DFW is not a niche request. Some seasonal movement is normal here, and most homes show minor evidence of it. The question a buyer needs answered is whether the movement is minor and stable, or significant and ongoing. A thorough home inspection, and in some cases a set of elevation readings, is how you begin to tell the difference.

Movement also affects what is under and around the house. Shifting soil stresses the plumbing lines beneath a slab and the sewer line leaving the house, which is why foundation findings, plumbing findings and drainage findings so often appear together in a North Texas report.

Slab versus pier and beam

Our booking form asks whether the home is on a slab or on pier and beam, because the two foundation types are inspected differently and fail differently.

Pier-and-beam homes have one advantage: they can be adjusted, and the inspector can crawl underneath and look at the structure directly. Slab homes hide everything, which is why elevation readings matter more on a slab.

What the structural inspection already covers

The foundation is part of the structural systems section of every TREC report, so you do not have to order anything extra to get a foundation opinion from your inspector. The structural inspection is a visual review of the foundation and everything attached to it.

• Exposed foundation edges and visible slab or pier condition, including cracks, spalling and exposed rebar or cable ends
• Brick and stone veneer: stair-step cracks, separated mortar joints, gaps at frieze boards and window corners
• Interior walls and ceilings: drywall cracks at door and window corners, separated crown molding, cracked tile
• Doors and windows: sticking, out-of-square frames, doors that swing on their own, gaps at the strike plate
• Floors: noticeable slope, cracked or separated flooring, humps and dips
• Crawl space on pier-and-beam homes: pier condition, beam and joist condition, moisture, wood damage and ventilation
• Evidence of prior repair: pier caps at the perimeter, patched cracks, replaced brick, engineer or repair company stickers
• Grading, drainage and vegetation around the perimeter that affect soil moisture

All of this goes in the report with photos and a plain-language explanation. When the evidence points to significant or ongoing movement, the inspector says so and recommends further evaluation. Because a TREC inspection is visual and non-invasive, it does not include any measurement unless you add it.

What the Measure Foundation Level add-on adds

The Measure Foundation Level option on our booking form is listed at $100. It adds a set of relative elevation readings taken across the floor of the house with a level instrument, recorded on a simple diagram of the floor plan. The readings show how much higher or lower each part of the slab is compared with the others.

That turns a visual impression into a number. Instead of the report saying the floor seems to slope toward the back, it shows the difference in elevation between the front and the back and where the change is steepest. It also gives you a baseline: if you have the readings repeated in a few years, you will know whether the foundation is moving or has stopped.

If the home has been through a foundation repair, the readings are especially useful because they show whether the repaired section and the untouched section are now moving together.

When a licensed engineer is the next step

Home inspectors report what they observe and measure. Engineers diagnose and design. When the inspection finds evidence of significant movement, the report recommends evaluation by a licensed professional engineer, and that recommendation is worth acting on during the option period rather than after closing.

Signs that usually trigger the recommendation include wide or offset cracks in brick, cracks that continue through the slab, doors and windows that no longer close, a large elevation difference across the floor, and evidence of prior repair combined with new cracking. An engineer can assess whether the movement is active, whether the structure is affected, and what repair, if any, is appropriate.

1. Read the structural section of the report. Note which findings are described as typical seasonal movement and which are flagged for further evaluation.
2. Get the elevation readings in hand. If you added the Measure Foundation Level option, the diagram gives the engineer a head start.
3. Hire an engineer, not a repair salesperson, for the opinion. A repair company’s estimate is useful later, but the diagnosis should come from someone who is not selling piers.
4. Ask the seller for repair history. Warranties from prior pier work may transfer to the new owner.
5. Negotiate from the engineer’s letter. A written scope makes the repair request concrete.

Many DFW homes with minor movement never need an engineer. The point of the inspection is to tell you which category the house you are buying falls into.

Signs of foundation movement to watch for

Buyers often ask what they should be looking for on their own walkthrough before the inspection. None of these is a diagnosis, but each one is worth pointing out to your inspector so it gets a closer look.

• Stair-step cracks in brick or stone, especially at corners and above garage doors
• Gaps between the brick and the wood trim or frieze board at the top of the wall
• Diagonal drywall cracks running from the corners of doors and windows
• Doors that stick, swing open on their own or show a wedge-shaped gap at the top
• Windows that are hard to open or have cracked panes with no impact damage
• Floors that feel like they slope, or a marble that rolls in one direction
• Separation between the kitchen counter backsplash and the wall, or between a tub and its tile
• Fresh paint or new caulk in just one corner of the house, which can hide recent cracks
• Soil pulled away from the slab edge in a dry summer, or standing water against it after rain

Our inspectors are known for being picky, and foundation clues are where that habit earns its keep. Thermal imaging, included on every inspection, also helps here by showing moisture along a slab edge or a wet corner of a crawl space that explains a pattern of movement.

Drainage, watering habits and trees

Because clay soil is the cause, managing soil moisture is the maintenance. The three things that control it are where roof and surface water goes, how the lot is irrigated, and what the trees are doing.

The grading and drainage portion of your inspection covers the first: whether the ground slopes away from the house, where the downspouts discharge, and whether there are low spots holding water against the slab. The sprinkler add-on described on sprinkler system inspection covers the second, including dead zones that leave one side of the foundation dry all summer. Large trees close to the house cover the third; they pull a great deal of water from the soil on their side of the house during a drought.

Once you own the home, the practical habit is to keep the soil around the foundation evenly moist year-round rather than letting it swing between soaked and bone-dry. Your report will point out the specific corners and zones that need attention, which is more useful than general advice.

Foundation-only inspections

If you already own the home, or you had an inspection elsewhere that did not address the foundation to your satisfaction, you do not need to book a full inspection to get a foundation opinion. The Smart Inspector offers a single component inspection for exactly this situation: a focused look at the foundation, with the Measure Foundation Level option available as an add-on.

A foundation-only visit follows the same approach as the structural section of a full inspection. The inspector examines the exterior and interior for the evidence described above, crawls the crawl space on a pier-and-beam home, takes elevation readings if requested, and delivers a same-day report with photos and a walkthrough at the property. If an engineer is warranted, the report says so.

To schedule either a full inspection with the foundation level add-on or a foundation-only visit, book online or call (817) 842-0330. You can request a specific inspector by name or take the first available. The base fee depends on the home’s square footage, age and add-ons, and the Get a Quote form will give you a number for your address.

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