Mold Inspection & Remediation in Plano, TX

Plano grew fast and all at once. The city had about 18,000 residents in 1970, about 129,000 by 1990, and about 222,000 by 2000, according to the U.S. Census, so much of its housing dates from the 1970s through the 1990s. Homes of that age are reaching the point where original supply lines, shutoff valves, water heaters, and HVAC equipment start to fail, and a small leak inside a wall or above a ceiling can feed mold for weeks before anyone notices.

Many North Texas homes have the air handler in the attic, with a drain pan and condensate line above the living space. When that line clogs during a long cooling season, water can overflow onto the ceiling below. Some homes built from the late 1970s to the mid-1990s were also plumbed with polybutylene supply lines, a material known for leaks.

Weather and soil add to the risk. NOAA's 1991–2020 normals for nearby McKinney, the closest station in Collin County, show about 38 inches of precipitation a year, with May and October the wettest months. Spring hail can damage roofs, and the expansive clay soils common in Collin County shift slab foundations, which can crack plumbing underneath.

Mold inspections in the Dallas area cost homeowners about $300 to $1,075 by their own reports, depending on house size, sample count, and whether a written protocol is included. The removal prices come from North Texas contractor price guides published in 2025 and 2026, and the clearance range from a 2026 Dallas cost guide. In Plano, ceiling jobs below an attic air handler tend to be smaller than slab-leak jobs that reach cabinets and flooring. Because Texas splits assessment from removal, budget for the consultant, the contractor, and the final clearance check. Our remediation cost guide covers what moves the number.

Plano homeowners hiring for mold work deal with two kinds of TDLR license. The mold assessment consultant inspects, takes samples, writes the remediation protocol, and later judges clearance. The mold remediation contractor does the removal, and Texas requires one for any area of 25 contiguous square feet or larger. Since September 1, 2025, the individual workers must hold their own TDLR credentials as well.

State law keeps those jobs apart: no license holder may assess and remediate the same project. Verify both companies at tdlr.texas.gov, ask each for proof of the $1 million general liability policy licensees must carry, and expect the Consumer Mold Information Sheet before anyone starts. The contractor issues a Certificate of Mold Damage Remediation within 10 days of a passed clearance.

Plano claims often hinge on age. A 30-year-old water heater that splits or a supply line that bursts behind a wall is sudden and accidental damage, which the Texas Department of Insurance says most homeowners policies cover, along with mold on materials that water reached. A condensate line that dripped into the ceiling for weeks or a slab leak that seeped for months is usually written off as gradual, and many Texas policies cap or exclude mold remediation on top of that.

Shut off the water, photograph the damage before cleanup, and report it the day you find it. Keep the Certificate of Mold Damage Remediation after the job: sellers must give buyers copies of any issued in the five years before a sale, and once it shows the cause was fixed, your insurer may not base underwriting on the earlier mold. See does insurance cover mold.