In Spring, mold inside walls most often follows Cypress Creek flooding, a plumbing leak or AC condensate that soaked the cavity. The wet drywall and insulation generally come out after the water source is fixed, and the framing is cleaned and dried before rebuilding. Call the number on this page to be connected with a local mold remediation company in Spring.

Spring's creek-side history
Spring is an unincorporated community of about 62,500 in north Harris County, around 19 miles from downtown Houston, that grew after the 1970s as subdivisions spread north from the city around Old Town Spring. Many homes were built in low areas along Cypress Creek. In the April 2016 Tax Day flood about 1,700 homes along the creek flooded, and some flooded again that May. In Hurricane Harvey more than 8,700 homes along Cypress Creek took on water; Inverness Forest and Northwood Pines were damaged, and Ponderosa Forest, Westador, Champion Forest and Wimbledon Champions were among the hardest-hit Spring-Klein neighborhoods. Walls in those homes may have been rebuilt more than once. Away from the creek, the causes are the ordinary ones for this climate: an attic air handler whose drain line clogs, a shower valve that drips inside the wall, or rain finding a gap in window trim during a summer downpour.
Do it yourself or hire it out?
| Factor | Reasonable DIY | Better to hire |
|---|---|---|
| Size | Under about 10 square feet (EPA) | Larger, or unknown extent inside the cavity |
| Source | Known and already fixed | Flood water, or a leak you cannot find |
| Materials | Painted surface only | Insulation, framing or cabinets involved |
| Household | No one with asthma or weakened immunity at home | Sensitive people living in the house |
| Texas rule | Homeowners may clean their own home | Hired work needs TDLR licenses and two separate companies |

Signs inside the house
- A line of discoloration at roughly the same height in several rooms
- Laminate or vinyl plank lifting along a wall
- Musty air when the AC first kicks on
- Paint peeling around outlets on exterior walls
Timing and permits
EPA's flood guide says to assume mold growth in a home that could not be dried within 24 to 48 hours. In a Spring summer, that window closes fast. If you hire the work, the mold assessment consultant gives you a written protocol at least one calendar day before removal, and the consultant later does the post-remediation assessment. Rebuilding is permitted through the Harris County Office of the County Engineer; no demolition permit is needed to tear out damaged material in the unincorporated area.
Mold in Walls & Drywall questions in Spring
How far up the wall does floodwater soak?
Why are two companies involved when mold is inside a wall?
Do I need a permit to put the walls back?
Does homeowners insurance pay for mold in walls?
More mold services in Spring
Mold in Walls & Drywall nearby
Sources
- EPA: Mold Cleanup in Your Home
- EPA: Homeowner's and Renter's Guide to Mold Cleanup After Disasters (pdf)
- TDLR: Mold Assessors and Remediators FAQs
- 16 Tex. Admin. Code 78.150: Photographs; Certificate of Mold Damage Remediation; Duty of Property Owner
- Harris County Office of the County Engineer: Permits FAQ
- Harris County Flood Control District: Spring Floods 2016
- Community Impact: Spring, Klein recover from flood damage along creeks
- Community Impact: Flooding to remain reality for many Spring, Klein homes along Cypress Creek
- Wikipedia: Spring, Texas
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