Foundation repair in Cypress

Cypress is an unincorporated community in northwest Harris County, inside Houston's extraterritorial jurisdiction but outside the city limits. That shapes a foundation job here in two ways. First, the Cypress Creek watershed took record flooding in Hurricane Harvey, so many slabs here have a flood history worth knowing. Second, permits run through Harris County, not the City of Houston. This page covers both, plus what to ask before you sign. For the rest of the region, see the Houston areas page.

How badly did Cypress Creek flood in Hurricane Harvey?

Very badly. The Harris County Flood Control District reported that flooding on the middle and lower parts of Cypress Creek, east of US 290, was the highest ever recorded, 2 to 5 feet above the Tax Day flood of April 2016. From Aldine Westfield Road upstream to Barker Cypress Road, water passed the 500-year level. The district counted about 8,750 flooded houses in the Cypress Creek watershed.

Rainfall here was extreme. The gauge at Cypress Creek and Cypresswood Drive logged 34.9 inches in four days, and gauges at Sharp Road and Katy-Hockley Road logged 33.0 and 31.9 inches.

The picture west of US 290 was different. There, Harvey's levels were generally equal to or slightly below Tax Day 2016. On Little Cypress Creek, Tax Day 2016 still holds the record almost everywhere; Harvey beat it only at the Kluge Road bridge, by about 0.6 feet. So two Cypress homes a few miles apart can have very different flood records.

Why does a flood record matter for a Cypress slab?

It matters because water changes the ground a slab rests on. Much of the Houston area sits on heavy clay such as the Lake Charles series, which the USDA says opens cracks up to 2 inches wide in dry spells and then takes in water fast through them. A slab that sat in floodwater for days, then dried out, can move unevenly as that clay swells and shrinks.

The signs are the usual ones: new cracks in brick or drywall, doors that start to stick, and floors that feel out of level. A foundation inspection measures the slab so you know whether the movement is real before anyone quotes for piers. If it is, slab foundation repair explains the main fixes.

Did the creek overflow reach streets away from the channel?

Yes. HCFCD found that Cypress Creek spilled over its watershed divide during Harvey. An estimated 45,000 to 65,000 acre feet of water left the Cypress Creek watershed and ran south through South Mayde, Bear, Langham and Horsepen Creeks into the Addicks Reservoir. West of Barker Cypress Road, structures flooded from this overflow that had stayed dry in 2016.

The overflow also crossed into upper White Oak Bayou near Eldridge Parkway, and flowed south along Cypress North Houston Road into the Barwood subdivision for about 24 hours. HCFCD called it the most significant overflow ever recorded there. So a home well away from the creek channel can still have a flood record.

The practical point for a foundation is surface water. Ground that once held standing water is worth a close look at grading and gutters. Foundation drainage covers how water is moved away from a slab, and it often belongs in the same quote as the repair.

Does foundation repair in Cypress need a Harris County permit?

It can. Because Cypress lies outside Houston's city limits, the City of Houston building permit that covers foundation repair inside the city is not the route here. Harris County's rule is that a Floodplain Development Permit is required for all work in the floodplain, and much of Cypress sits along Cypress Creek and its tributaries. Check your lot's flood zone before work starts.

The county also says a property that was significantly damaged by flooding may need to be brought into line with current development standards. Its permits list has no separate entry for residential foundation repair, so ask the Harris County Permits Division (713-274-3900) whether your job needs one. A local foundation contractor who works in unincorporated Harris County should know the steps, and the permit belongs in the written quote.

What should you ask before buying or repairing a home near the creek?

Ask about the flood history first, then the foundation type and any past repair paperwork. HCFCD reported that, across the Cypress Creek watershed, about 279 homes would have flooded in Harvey if the district and FEMA had not already bought and removed them.

Before you buy, ask the seller whether the house took water in Harvey or in the Tax Day 2016 flood, and whether any foundation work followed. Then get the slab measured. If repairs were done, a fresh survey shows whether the house has stayed level since.

Prices here follow the Houston pattern: most jobs run about $3,300 to $6,800, with pressed concrete piers at $300 to $600 each. A permit, a flood-zone survey or a drainage fix can add to that. The full breakdown is on the foundation repair cost page.