Foundation repair in Katy, TX
Compare up to three local Katy foundation contractors from Henry's vetted bench — piers, slab repair, drainage and structural cracks.
Katy sits across three counties, and that alone shapes how foundation repair works here. The dense in-city core near Old Katy falls under the City of Katy's own building permit process, while the much larger "Katy" area most people mean, Cinco Ranch, Grand Lakes, Seven Meadows, Cane Island, Firethorne and dozens of other master-planned subdivisions, actually sits in unincorporated Harris County, Fort Bend County or Waller County, each with its own permitting office and, in most neighborhoods, an overlapping Municipal Utility District (MUD) that manages drainage and utility infrastructure. Almost every home built here since the 1980s sits on a post-tensioned or conventionally reinforced slab-on-grade foundation poured directly into Gulf Coast fat clay, a highly plastic soil that swells dramatically when saturated and shrinks and cracks hard during Texas summer droughts. That shrink-swell cycle, not frost, is what drives Katy foundation movement, and it has only gotten more attention since Hurricane Harvey in 2017 pushed the Addicks and Barker reservoirs to record pool levels and flooded thousands of homes in the Cinco Ranch, Kelliwood and Nottingham Country areas, putting local drainage grading, French drains and gutter routing under a permanent spotlight. A pocket of older pier-and-beam construction still exists in Old Katy near the historic downtown, but the overwhelming majority of repair calls across the metro involve slab foundations: pressed piling or drilled bell-bottom piers to stabilize a settling perimeter, and polyjacking or mudjacking to fill voids and relevel interior slab areas. Texas has no statewide residential contractor license, so vetting a Katy foundation company leans heavily on a Texas-licensed Professional Engineer's (TBPE) report, proof of insurance, and a warranty that actually transfers if you sell the house.
The Henry Standard
Every foundation contractor in our network agrees to three things.
Show up
Call back. Keep appointments. And if something changes, communicate it.
Quote honestly
Clear scope, pier counts, and pricing in writing—so you know what you're agreeing to.
Finish the work
See the repair through, including the drainage and cleanup that was quoted.
Nothing revolutionary. Just the way we believe doing business should still be done.
How Henry matches you with Katy foundation contractors
- Step 1
Tell Henry what you're seeing
Your ZIP, the cracks or settling you've noticed, and how soon you need it looked at. Two minutes, four questions.
- Step 2
Pros are already vetted
Only three Henry Standard foundation contractors in your Katy-area ZIP get your request — pros we've checked for responsiveness, references and written estimates.
- Step 3
Compare up to three quotes
You hear from three foundation contractors at most — never a list of twenty — and every estimate comes in writing. You pick, or pick nobody.
What foundation repair costs in Katy
| Foundation inspection with written report | $0 - $650 |
| Texas PE structural evaluation letter | $450 - $900 |
| Pressed concrete piling (per pier) | $350 - $650 |
| Drilled/bell-bottom concrete piers (per pier) | $450 - $800 |
| Steel push piers (per pier) | $900 - $1,800 |
| Full perimeter slab underpinning (8-14 piers) | $5,500 - $14,000 |
| Interior slab void fill, mudjacking (per project) | $600 - $2,500 |
| Polyurethane foam injection/polyjacking (per project) | $800 - $3,200 |
| Root barrier installation (linear foot) | $12 - $25 |
| Drainage correction/French drain installation | $3,500 - $12,000 |
| Pier-and-beam leveling, Old Katy homes | $4,000 - $10,000 |
| Soaker hose/foundation watering system installation | $300 - $900 |
Ranges are general estimates gathered from homeowner-reported quotes in the Katy area, not an offer or a quote for your project.
Best time for foundation work in Katy
In Katy, foundation movement tracks the region's wet-dry swings in Gulf Coast fat clay rather than a frost cycle. Late summer and early fall, especially after a hot, dry Houston summer with little rain, is when clay soil shrinks away from slab edges and homeowners notice the year's worst new cracking, sticking doors and gaps at baseboards; this is traditionally the busiest season for pier work across Cinco Ranch, Seven Meadows and Firethorne. Spring, particularly after a wet stretch or a tropical system, brings the opposite problem: rapidly re-saturated clay swells and can heave sections of slab, and it's also when many homeowners discover drainage issues that trace back to grading problems left over from original construction or, in flood-prone pockets near Mason Creek and the Addicks/Barker watershed, from post-Harvey repairs that were never fully corrected. Hurricane season, June through November, adds another variable: a single heavy tropical rain event can saturate soil enough to trigger a service call regardless of the calendar, and companies doing both foundation and drainage work tend to book up fastest in the weeks after a named storm passes through the Houston metro. Scheduling a routine inspection in late spring, before peak summer heat sets in and before storm season creates a backlog, tends to get homeowners the most flexible timeline.
Permits and HOA rules
Where you need to pull a permit in Katy depends entirely on which side of the city line your address falls on. Homes within the official City of Katy limits, largely the older core around downtown and Old Katy, go through the City of Katy's Building Permits Division, which requires a permit for structural foundation repair including piering and underpinning, generally along with a Texas-licensed engineer's report describing the repair method and pier layout. The much larger area everyone calls "Katy," including Cinco Ranch, Grand Lakes, Seven Meadows, Falcon Ranch, Cane Island, Firethorne, Kelliwood and Elyson, is unincorporated and split across Harris County, Fort Bend County and a sliver of Waller County, so the correct permitting office is Harris County Permits, Fort Bend County Development Services, or Waller County Permits depending on the parcel. Most of these master-planned subdivisions are also inside a Municipal Utility District (MUD) that owns and maintains local drainage infrastructure, storm sewers and detention ponds, which matters when a foundation repair involves regrading the yard or tying into a drainage system, since MUD approval can be required in addition to county permitting. Because jurisdiction lines in Katy don't match the popular sense of the town's boundaries, confirm your address's actual taxing jurisdiction and permitting authority (Harris Central Appraisal District, Fort Bend Central Appraisal District, or Waller CAD records will show this) before assuming City of Katy rules apply, and ask any contractor bidding your job which office they intend to file with.
Licensing and insurance in Texas
Texas has no statewide license specifically for foundation repair or general residential contracting, so anyone can legally call themselves a foundation repair contractor without passing a state competency exam. That gap is exactly why vetting in Katy centers on the engineer, not the salesperson: reputable local companies either employ or retain an independent Texas-licensed Professional Engineer (PE), regulated by the Texas Board of Professional Engineers and Land Surveyors (TBPELS), who inspects the home, measures floor elevations, and issues a stamped report specifying the repair scope, pier count and spacing before any work begins. You can verify an individual engineer's license status directly through the TBPELS online license search. Beyond the engineer, ask for proof of general liability insurance, confirm the company is a registered, active entity through the Texas Secretary of State or Harris/Fort Bend County business filings, and get the workmanship and structural warranty in writing, specifically whether it's transferable to a future buyer, since transferable warranties are a major selling point in fast-turnover Katy subdivisions like Cinco Ranch and Elyson. Because there's no state license to fall back on, a written PE report tied to your specific address, not a verbal sales pitch about clay soil, is the single most important document in the hiring decision.
How to vet a foundation repair contractor in Katy
Start by asking whether the company employs or contracts an independent Texas-licensed Professional Engineer, and request that engineer's stamped report for your specific address, including measured floor elevations, before you sign anything. A salesperson's explanation of Gulf Coast clay is not a substitute for a report tied to your home's actual elevation survey.
Since Texas has no residential contractor license to check, verify the company's business registration through the Texas Secretary of State or the appropriate county clerk, confirm active general liability insurance, and check the assigned engineer's license status through the TBPELS online lookup.
Ask specifically whether they're proposing pressed pilings, drilled bell-bottom piers, or steel push piers, and why. Pressed piling is common and cost-effective in Katy's clay but can have limited depth in some soil conditions, while drilled piers reach deeper bearing strata and steel push piers suit tighter access; the right choice should follow from your engineer's report, not a standard company package.
What a fair Katy quote includes
A complete quote should itemize the number and type of piers, their spacing on a diagram tied to your actual foundation plan, whether the county or city permit and engineer's letter are included in the price, any drainage correction needed before or after piering, and written warranty terms including whether the warranty transfers to a future buyer.
Get at least two quotes for any full underpinning project, and make sure at least one bidder walks the perimeter with you and explains the pier count relative to your engineer's report rather than a flat per-linear-foot estimate. Most Katy-area companies offer free inspections, so a second opinion costs only time.
Questions to ask before you hire
Which office is pulling the permit for my address, City of Katy, Harris County, Fort Bend County or Waller County, and is my property also inside a MUD that needs to sign off on drainage changes? Can I see the filed permit number once submitted?
Is the PE report from an engineer independent of your sales process, and is that report included in the quoted price? What does the warranty cover if the slab moves again in five years, does it transfer if I sell, and how many similar jobs has your crew completed in my specific subdivision?
Red flags in the Katy market
Watch for high-pressure, same-day pricing that discourages a second opinion, any contractor who skips the engineer's report on a full piering job, and vague per-pier pricing without a diagram showing where piers will go relative to your foundation plan. Also be wary of a company that blames every crack on "normal Texas clay" without measuring actual floor elevations, since that measurement is what should drive the repair scope, not a canned explanation.
Areas Henry covers
Cinco Ranch · Old Katy · Grand Lakes · Seven Meadows · Falcon Ranch · Cane Island · Firethorne · Nottingham Country · Kelliwood · Elyson
Common questions
How much does foundation repair cost in Katy?
Most Katy slab foundation repairs using 8 to 14 piers run roughly $5,500 to $14,000, with individual pressed pilings costing $350 to $650 each and drilled piers $450 to $800 each. Smaller interior slab leveling with mudjacking or polyjacking typically runs $600 to $3,200.
Do I need a permit for foundation repair in Katy?
Almost always, yes, for structural piering or underpinning. If your address is inside the official City of Katy limits, the City of Katy Building Permits Division issues the permit. If you're in the larger unincorporated area most people call Katy, the correct office is Harris County, Fort Bend County or Waller County permitting, depending on your parcel, and your MUD may also need to review drainage changes.
Is foundation repair licensed in Texas?
No. Texas has no statewide contractor license for foundation repair or general residential construction. The professional who is licensed is the structural engineer who inspects the home and stamps the repair report, regulated by the Texas Board of Professional Engineers and Land Surveyors (TBPELS).
Why does Katy have so much slab foundation movement?
Katy sits on Gulf Coast fat clay, a highly plastic soil that swells significantly when saturated and shrinks and cracks during dry Texas summers. That repeated shrink-swell cycle beneath slab-on-grade foundations, rather than frost, is the primary driver of foundation movement across Cinco Ranch, Grand Lakes and the rest of the metro.
Does drainage matter for foundation repair after Hurricane Harvey?
Yes. Post-Harvey, drainage grading, gutter routing and French drains have gotten far more scrutiny in Katy, particularly near the Addicks and Barker reservoirs and Mason Creek. Correcting drainage before or alongside piering helps prevent the same clay-saturation movement from recurring.
Is pier-and-beam or slab foundation more common in Katy?
Slab-on-grade dominates newer Katy construction built since the 1980s across nearly every master-planned subdivision. A pocket of older pier-and-beam homes remains in Old Katy near the historic downtown, which is leveled differently, using shims and additional piers under the beam rather than slab piering.
What's the difference between mudjacking and polyjacking for a Katy slab?
Mudjacking pumps a heavier cement slurry to fill voids and lift a slab, costing less but adding weight. Polyjacking (polyurethane foam injection) is lightweight, cures in minutes, and resists moisture intrusion into Gulf Coast clay, but typically costs more per project.
Katy guides from The Henry Files
Nearby Texas markets
Sources
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