Every summer the same call comes in around late July. A tenant reports a door that won't latch, or a hairline crack crawling up from a window corner. Nine times out of ten the house isn't failing. The ground under it is drying out and moving, and nobody has been watering the foundation.
This is one of the most preventable maintenance problems in North Texas, and one of the most expensive to ignore. The fix is cheap water on a schedule. The consequence of skipping it is a repair bill measured in thousands.
This article is educational information, not legal advice. Lease assignment of maintenance duties and habitability questions turn on the specific lease and the specific condition, so talk to a Texas real estate attorney for your situation.
Why DFW Foundations Move in July
Most of the Metroplex sits on expansive clay soil. Tarrant, Dallas, and the counties around them are known for it. Clay holds water and swells when it's wet, then shrinks and pulls apart when it dries. That single property drives most of the foundation trouble in the region.
Almost every rental built here since the 1970s sits on a slab-on-grade foundation, which is a concrete pad poured directly on that clay. The slab is only as stable as the dirt holding it up. When a stretch of 100-degree days bakes the perimeter soil and no rain comes, the clay contracts and drops away from the edge of the slab. The slab loses its support, one corner settles, and the house racks just enough to bind a door or split a seam of drywall.
By early July in a dry year, the soil around an unwatered DFW slab has already started separating. You can sometimes see the gap: a finger-width channel between the dirt and the concrete beam running along the flower bed.
What Foundation Watering Actually Does
The goal isn't to flood anything. It's to keep the moisture in the soil steady so the clay never gets a chance to shrink hard against the slab. Consistent is the whole game. Soil that stays evenly damp doesn't swell and doesn't contract, so the slab keeps its support all summer.
The standard tool is a soaker hose laid a foot or so out from the foundation, all the way around the house, run for 20 to 30 minutes a few times a week when it's hot and dry. A $12 mechanical timer on the spigot means nobody has to remember. That's the entire system. It is not complicated, which is exactly why it gets skipped.
Does the Lease Make It the Tenant's Job?
Here is where owners get it wrong in both directions. Some assume the tenant will naturally water the yard and the foundation with it. Others assume foundation care is always the owner's job and never put anything in writing.
Texas leases can assign routine exterior upkeep, including foundation watering, to the tenant. The widely used TXR residential lease lets you spell out yard and landscape duties, and owners commonly add a special provision that puts foundation watering on the tenant during dry months. If you want the tenant responsible, the lease has to say so in plain language. A duty that lives only in your head is not a duty the tenant agreed to.
What the lease cannot do is sign away the owner's core repair obligations. Under Texas Property Code Chapter 92, a landlord has to repair conditions that materially affect a tenant's physical health or safety, and the parties can't simply waive that floor. A cracked slab that becomes a structural or safety problem is the owner's to fix, no matter who was supposed to run the hose.
So assigning the watering is smart, but assuming it erases your responsibility for the structure is not. When a real structural issue shows up, get a licensed foundation engineer, and if there's a dispute over responsibility, a Texas attorney.
The practical takeaway: put foundation watering in the lease as a named tenant duty, give the tenant the tools and the instructions, and keep the structural repair obligation where the law keeps it, with you.
Watering Restrictions Don't Stop You
Owners hear that Fort Worth, Arlington, and most DFW cities cap outdoor watering at two days a week and assume foundation watering is off the table in a drought. It usually isn't. Most DFW watering ordinances exempt a hand-held hose or a soaker hose used for foundation watering from the two-day schedule. You can run a soaker hose along the slab on days your sprinkler system is prohibited.
The rules vary by city and tighten as drought stages escalate, so check your city's current stage before you assume. The point stands: a citywide sprinkler restriction is not a reason to let the foundation go dry. The exemption exists precisely because the cities know what dry clay does to slabs.
What It Costs to Skip It
Watering is cheap and repair is not. A single interior pier to lift a settled spot runs several hundred dollars. A modest perimeter job with a handful of exterior piers lands in the $4,000 range. A full slab that has moved on two or three sides can clear $12,000 once you add piers, plumbing tests, and the cosmetic repairs to the drywall and brick afterward.
There's a second cost owners forget. A foundation history follows the house. Once a slab has been lifted, you're disclosing it and answering questions about it at every future sale and to every insurance carrier. A $25 hose and a timer protect the asset, not just this summer's drywall.
How to Set It Up So It Happens
Systems beat good intentions. If you want the foundation watered all summer, don't rely on a reminder. Build it in:
- Name foundation watering as a tenant duty in the lease, with the months and the expectation stated plainly.
- Leave a soaker hose and a spigot timer at the property so the tenant has no reason not to.
- Give one page of instructions at move-in: where to lay the hose, how long, how often in a dry stretch.
- Have your manager or a lawn vendor eyeball the perimeter during summer visits and flag a separating gap early.
Do that and the whole issue disappears into routine. The tenant runs a hose, the clay stays put, and the slab never gets the chance to move.
Can I require the tenant to water the foundation?
Yes. Texas lets the lease assign routine foundation and yard watering to the tenant. You still keep responsibility for actual structural repair under Chapter 92, and you can't waive the habitability floor. Give the tenant the hose, a timer, and written instructions so the duty is realistic.
Whose problem is a cracked slab, the owner or the tenant?
Structural repair of the foundation is the owner's obligation. A lease can make the tenant responsible for the watering that helps prevent movement, but it can't shift the cost of a genuine structural repair onto the tenant. If there's a dispute, get a foundation engineer and talk to a Texas attorney.
Can I water the foundation during a city watering restriction?
In most DFW cities, yes. Foundation watering with a soaker hose or hand-held hose is usually exempt from the two-day sprinkler schedule. The rules tighten as drought stages rise, so confirm your city's current stage before you assume.
Want us to handle this?
Foundation care is the kind of small, seasonal task that saves an owner five figures and never gets done on its own. We write the watering duty into the lease, set the tenant up with the tools, and watch the perimeter on our summer visits so a separating gap gets caught early instead of in a repair estimate. Let us handle it.
Call (817) 332-7368 Owner ServicesBottom Line
DFW rentals sit on clay that shrinks in a summer drought and drops away from the slab. Steady moisture keeps the soil from moving, and steady moisture is a soaker hose on a timer running a few times a week from July through the first real rain.
Put the watering in the lease as a tenant duty, keep the structural repair obligation where Texas law keeps it, and check the perimeter through the hot months. A $25 hose is the cheapest foundation insurance you'll ever buy.