Foundation repair · Brushy Creek, Texas
Foundation Repair in Brushy Creek, TX
Stony on top, sticky clay underneath, and no city permit office to call.
Brushy Creek looks like rock country, and in a way it is. Limestone sits under most of it. So a crack in a Brushy Creek house can feel like a puzzle. Part of the answer can be in the layer between the rock and the slab, and nearly half of Brushy Creek is on a soil that hides a lot of clay there.
- Free inspection
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- Town-by-town soil data
- Referral service, disclosed
- Call (737) 259-7007
What have you noticed?
Brushy Creek is also different on paper. It isn't a city, so the rules come from Williamson County, the Brushy Creek MUD and the state. Below, the soil survey, the Census, the county and the MUD each have their say.
Brushy Creek's Side of I-35
We checked the USDA soil survey at 25 points across Brushy Creek. Only 4% landed on soil with a very high shrink-swell reading, against 24% in Round Rock. That sounds reassuring, and partly it is. But only 4% of the points read low or moderate either. Most of Brushy Creek sits in between, on soil the USDA rates high.
- Georgetown soil, 48%. This is the one to understand. The top 7 inches or so are a stony clay loam reading just 2.5 on the USDA's shrink-swell scale, with about 30% clay. Below that is a layer of about 70% clay that reads 8.5, running down to limestone at about 35 inches.
- Eckrant, 40%. A stony clay over limestone that the survey puts about 11 inches down. In our Brushy Creek sample it reads 6.0, at the edge of the high band, but there's little of it between a slab and the rock.
- Crawford, Denton and Sunev, 4% each. Crawford is the very high one: a clay reading 10.0 at the surface and 11.0 below, over rock at about 27 inches.
The USDA rates anything over 9 as very high and anything under 3 as low. So nearly half of Brushy Creek has a surface that reads low and a layer below it that reads high. A dry, stony yard can sit on sticky clay that swells and shrinks far more than the top few inches suggest.
The state geologic map matches. Of the same 25 points, 76% fall on the Edwards and Comanche Peak limestones and 16% on the Fredericksburg Group. A 2007 University of Texas study puts that older limestone on the west side of the Balcones Fault Zone as it passes Round Rock.
What does that mean if your house is moving? On the Georgetown soil, the clay layer above the rock is a real suspect. On Eckrant, there's so little soil that other causes deserve a look too, especially water collecting along the slab. Our Round Rock soil guide shows how to look up the soil under your own lot.
What Brushy Creek Homes Are Built On
Brushy Creek counts 7,421 homes, and it's a 1990s place more than anything: 37.9% of homes went up in that decade, with 27.3% in the 2000s and 22.8% in the 1980s. The median home dates from 1995, six years older than Round Rock's. Only 3.4% are from the 2010s, and less than 1% predate 1960.
That puts a typical Brushy Creek house around 30 years old. A house that age has been through a lot of dry summers and wet springs. The weather station northeast of Round Rock averages 4.67 inches of rain in May but only 2.04 inches in July, and clay dries out through that hot middle of the year. A build year can't tell you what kind of foundation you have, and a foundation inspection will.
- 1995Median year Brushy Creek homes were built
- 0.9%Built before 1960
- 68.7%Built in 1990 or later
Source: US Census Bureau, American Community Survey 5-year estimates, 2023.
Permits and Rules in Brushy Creek
Brushy Creek is a census-designated place, not a city, so there's no city permit office. It sits in unincorporated Williamson County.
- No county residential building permit. Asked whether a building permit is needed, the county's own FAQ points only to a floodplain check. Another county FAQ, as indexed online, says it hasn't adopted a residential building code.
- A floodplain check. The county says to contact its Road & Bridge Division for a Certification of Compliance, or apply on My Government Online. That permit checks whether the property is in a floodplain.
- A city, if one applies. The county says that if the property is inside a city or a city's extra-territorial area, check with that city.
- The MUD and any HOA. Check with the Brushy Creek MUD and your homeowners' association before outside work starts.
No county permit doesn't mean no engineer. Texas engineering law doesn't exempt the design of a repair to a house slab on expansive soil, unless the work meets the residential code as the local jurisdiction applies it. Ask any company how an engineer fits into its plan. Our permits guide covers the nearby cities' rules.
Watering Rules in Brushy Creek
The Brushy Creek MUD sets the watering rules, and it names foundations directly.
- Stage 1: lawn watering at most twice a week. Odd addresses water Tuesday and/or Saturday, even addresses Wednesday and/or Sunday. Hand watering is allowed before 10 a.m. or after 7 p.m. on any day. Foundation watering must follow the Stage 1 schedule.
- Stage 3: lawn watering stops. Foundations may be watered only with a hand-held hose or soaker hose, on the Stage 2 schedule.
Stages change, so check the district's current stage before you set a routine. With so much Georgetown soil in Brushy Creek, steady watering is worth the effort in a dry summer. Our foundation watering guide explains why, and why too much water isn't the answer either.
Brushy Creek and the Edwards Aquifer
After Georgetown, Brushy Creek sits over the Edwards Aquifer recharge zone more than any other town we serve. On the Texas Commission on Environmental Quality's map, 84% of our Brushy Creek points landed on the recharge zone and 16% on the contributing zone.
The state rules cover construction and digging on the recharge zone, and they leave out routine maintenance of an existing building that doesn't disturb more of the site. We haven't found a TCEQ answer on where repair piers fall. With no city or county building permit in Brushy Creek, it's worth asking TCEQ's Austin office directly before any digging starts: 512-339-2929. Our Edwards Aquifer guide explains the rules.
Foundation Repair Services in Brushy Creek
- Slab foundation repair for slabs on Eckrant rock or on the Georgetown soil's clay layer
- Pier and beam repair for raised houses with a crawl space
- House leveling when a whole floor has drifted
- Foundation inspection to measure before you decide
- Foundation crack repair to tell a cosmetic crack from movement
Brushy Creek Foundation Repair Questions
Do I need a permit for foundation repair in Brushy Creek?
Not from a city or the county for the repair itself. Williamson County has no residential building permit, though it does run a floodplain check. Ask about an engineer anyway, check with the MUD and your HOA, and ask TCEQ about the recharge zone before digging.
My yard is full of rocks. Why would my house move?
About half of Brushy Creek is on Georgetown soil. Its stony top reads just 2.5, but the layer underneath is about 70% clay and reads 8.5, down to rock around 35 inches. That clay can swell and shrink with the seasons.
Does the MUD let me water the foundation in Stage 3?
Yes, under the MUD's rules: with a hand-held hose or a soaker hose, on the Stage 2 schedule. Check the district's current stage first.
Nearby Towns We Serve
Close to Brushy Creek, we also serve Round Rock, Cedar Park, Georgetown, Leander and Wells Branch.
Cedar Park shows how much the ground can change nearby: its sample had no very high clay and 76% low or moderate soil. See all service areas.
Get a Free Foundation Inspection in Brushy Creek
Describe the crack, the sticking door or the slope, and give us your ZIP code. A foundation repair professional who covers Brushy Creek gets your request. They can come out to measure and explain what they find. The visit is free.
What have you noticed?