The short answer
There’s no best season for the repair itself. Contractors install piers and lift houses year-round in North Texas, and a repair the house needs doesn’t get cheaper by waiting for spring. Where timing does matter is in reading the house: when you inspect, when you patch cracks, and how you judge whether a repair held.
How the seasons move a Collin County house
The National Weather Service describes DFW’s rain as wet springs and falls with dry summers and winters, and annual totals that swing from less than 20 to more than 50 inches. The clay follows the water. Houston black clay, the county’s most widespread soil, has high shrink-swell potential, so a house here rises and falls a little every year.
| Season | What the clay is doing | What you may notice |
|---|---|---|
| Spring | Swelling after wet months | Cracks close, doors near outside walls free up |
| Summer | Drying from the edges inward | Stair-step brick cracks widen, outside doors bind, soil pulls from the slab |
| Fall | Rewetting with fall rain | Some summer cracks close; heave can show in the middle of the house |
| Winter | Usually drier, little growth | A quieter baseline; fewer changes week to week |
Summers have been hard on slabs lately. The weather service counted 55 days that reached triple digits at DFW in 2023, and the record is 71 days, set in 2011. In 2026, DFW went 67 days without measurable rain from mid-July to late September.
Why waiting rarely saves money
Movement on active clay doesn’t stop because you’re waiting for a better month. Sealing a crack early is the cheap end of the scale, at $250–$800 on HomeAdvisor; This Old House says letting damage spread can push the bill to $10,000–$15,000 or more. Meanwhile doors, drywall, brick and plumbing absorb the movement.
That said, not every sign needs a repair. ASCE Texas notes that an owner may reasonably choose cosmetic repairs instead of underpinning, and it calls trying watering, drainage and monitoring before structural repair something that may be a prudent approach. A season of watching, with records, is a legitimate plan for small, slow movement.
When timing does matter
For the inspection. A floor elevation survey shows the house at one moment. The Foundation Performance Association calls it a snapshot and suggests a second survey six to twelve months later to see whether movement continues. An inspection at the end of a dry summer shows the edges at their lowest; one after a wet spring shows any heave at its highest. If you’re deciding whether a repair is needed at all, two readings in different seasons tell you more than one.
For cosmetic crack repair. Patching drywall and brick at the height of a drought means patching cracks the soil may partly close by winter. Wait for the soil to recover, or for the structural repair to settle, before paying for cosmetic work.
For a lift. The lift sets the house onto its new supports at the soil’s current state. Lifting a slab that has heaved in the middle to match high edges can mean raising the whole house, so a heave diagnosis should come before any lift, in any season. Repair piers will not prevent foundation uplift unless they are designed to do so, the Foundation Performance Association notes.
For permits. In McKinney, a repair needs an engineer’s letter and drawings before the city issues the permit. Frisco and Plano also want an engineer up front. Build that time into any schedule, especially before a sale. The permit guide has each city’s steps.
For a sale or a claim. If you’re selling in spring, start in winter so the final paperwork is in hand. If a leak may have caused the damage, report it promptly whatever the season.
A year-round plan
- Late summer: walk the house. Note which cracks opened and which doors started binding. Water the dry sides of the foundation within your city’s rules; the watering guide explains how.
- Fall: see what closed after the rain. Signs that persist into fall are the ones to have inspected.
- Winter: a good time to collect quotes and permits for work you’ve decided on.
- Spring: check gutters, downspouts and grading before the summer dry-down.
Whatever the month, several signs together are the cue to call. The warning signs page lists them, and the inspection page explains what a contractor’s visit includes.
Want a contractor to look at it? Call to schedule an inspection.