Why mold is common in Conroe
Conroe, the Montgomery County seat, has grown fast: the Census Bureau named it the fastest-growing large city in the country from 2015 to 2016, when its population rose 7.8% in a single year. NOAA's 1991–2020 normals for Houston, the nearest station, show about 56 inches of precipitation a year, and many Conroe homes sit under tall pines, where shade and humidity keep roofs, siding, and crawl spaces slow to dry.
Lake Conroe and the West Fork of the San Jacinto River shape the flood risk. During Hurricane Harvey in 2017, nearly 32 inches of rain fell on the city. Lake Conroe rose to a record level of about 205.9 feet, well above its normal 201 feet, and to protect the dam the San Jacinto River Authority released a record 79,100 cubic feet of water per second into the river. The city ordered a mandatory evacuation of McDade Estates on the riverbank. In May 2024, storms dropped up to 16 inches overnight in northern Montgomery and Walker counties, and releases from the dam rose past 66,000 cubic feet per second.
Away from the river, the usual Gulf Coast problems apply: humid air condensing on attic ducts, overflowing drain pans, slow plumbing leaks, and pipes that burst in freezes like the February 2021 winter storm. The EPA recommends drying wet materials within 24 to 48 hours to keep mold from taking hold.
Source: NOAA climate normals
Mold services in Conroe
What mold work costs in Montgomery County
| Service | Typical range |
|---|---|
| Mold inspection, Houston area | $300–$600 |
| Lab analysis, per air or surface sample | $50–$150 |
| Remediation, priced per square foot | $10–$25 per sq ft |
| Typical Houston remediation job | $1,500–$5,000 |
| Bathroom mold removal | $500–$2,000 |
| Whole-house remediation | $10,000+ |
Conroe sits in the Houston price market, and the table relies on Houston contractor price guides from 2026, with square-foot rates from a 2025 Houston guide. Homes on the lake or the river that took on water add drying, demolition, and rebuilding to the bill, so a flood job will sit well above the typical range. For a fair comparison, have every contractor bid on the same written protocol. Our mold remediation cost guide lists the factors.
Texas mold licensing: what to check
About 17% of Conroe homes date from before 1980, according to Census ACS 2020–2024, so much of the mold work here happens in newer houses, where leaks and attic condensation are the usual sources. Whatever the age, Texas requires a TDLR-licensed remediation contractor once growth reaches 25 contiguous square feet, while an owner of a property with fewer than 10 dwelling units may do the work on it without a license.
On licensed jobs, expect two firms: a mold assessment consultant who writes the protocol and later the clearance report, and a remediation contractor who does the removal. Texas does not let one license holder do both on the same project. Since September 1, 2025, each worker must also hold a TDLR license or registration. Get the Consumer Mold Information Sheet before the work and the Certificate of Mold Damage Remediation within 10 days after, and verify names at tdlr.texas.gov.
Will insurance cover it?
During Harvey, record releases from the Lake Conroe dam sent the West Fork of the San Jacinto into homes downstream, and a homeowners policy treats that as flood water no matter where it came from. Only a flood policy responds, and FEMA says a new NFIP policy generally waits 30 days before it takes effect. Homes along the river below the dam, including McDade Estates, should not wait for a forecast to buy one.
Inside the house, the Texas Department of Insurance says the usual homeowners policy pays for sudden and accidental water damage, such as a pipe that bursts in a freeze, and for mold on what that water ruined. Slow leaks are generally excluded, and many policies limit or exclude mold. Once you fix the cause and get a Certificate of Mold Damage Remediation, an insurer may not base an underwriting decision on that past mold. More in our insurance guide.
Areas we connect you in
Downtown Conroe, Grand Central Park, Lake Conroe, April Sound, Panorama Village, Montgomery, Willis, and surrounding neighborhoods of Conroe.