Mold Remediation FAQ for Plano Homeowners and Renters

Short answers on urgency, cost, insurance, Texas licensing, the clearance certificate and testing. For anything about your own house, get free quotes from independent TDLR-licensed companies.

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Urgency and health

Is mold common in Plano and North Texas?

Yes. Plano's climate is humid subtropical, with 37.01 inches of rain a year at DFW and summer dew points in the mid-60s °F, so outdoor air is damp enough to feed mold for about five months. Add slab leaks on shrink-swell clay, attic air handlers, hail-damaged roofs and the February 2021 freeze, and mold calls are routine. Demand for remediation here peaks in February and March, when winter pipe and roof damage gets discovered.

Why does my house smell musty when I can't find a leak?

The usual Plano suspects are under the floor, above the ceiling or inside a wall. A slab leak wets the slab and the back of drywall from below; an attic condensate line drips onto insulation; a hail-bruised roof leaks slowly; a pipe that split during the 2021 freeze may have drained into a wall cavity that was dried quickly and never opened. A licensed assessor with a moisture meter finds it faster than guessing.

How fast do I need to act after water damage?

The EPA says wet materials dried within 24 to 48 hours usually do not grow mold. Stop the water, pull back wet rugs, run fans and the AC, and photograph everything. Texas treats a water-damage event where delay would increase contamination as an emergency, which lets a licensed contractor start after next-business-day notice instead of the usual five days.

Can I clean up mold myself?

For small areas, usually yes. Texas lets anyone handle visible mold under 25 contiguous square feet, and the EPA says small patches on hard surfaces can be cleaned with detergent and water once the water problem is fixed. Wear gloves, goggles and an N-95. Beyond 25 square feet, or when the growth is inside a wall, in ductwork or on insulation, hire licensees; a DIY job that grows past 25 square feet loses the exemption.

Does bleach kill mold on drywall?

Not in a lasting way. TDLR says applying bleach without removing the moisture source is not a permanent effective solution, and painting over mold does not work either. On porous drywall and wood the growth continues inside the material. Removing the wet, moldy material and fixing the water is what works; bleach is not needed for small hard-surface spots.

Is black mold dangerous?

Color is not a diagnosis. Many common molds look dark, and Stachybotrys, the one people mean by black mold, is not automatically more hazardous than others. The CDC says all molds should be treated the same with respect to removal, and TDLR notes that identifying the species is usually unnecessary. Anyone with breathing trouble or other symptoms should see a doctor. This is not medical advice.

Cost

How much does mold remediation cost in Plano?

Published national guides put remediation at $10 to $25 per square foot, typical jobs at $1,500 to $9,000 and bathrooms at $500 to $1,500 (Fixr 2025; This Old House 2026). In Texas, a 25+ square foot job also includes a separate licensed assessment and protocol, about $303 to $1,044 nationally, plus clearance. These are planning figures. Quotes come from the companies. See the cost guide for the table and calculator.

How much is a mold inspection or test in Texas?

A licensed mold assessment nationally runs $303 to $1,044 with an average near $670, and air-sample lab fees add $250 to $350 (HomeAdvisor 2025). Texas has no fee schedule; each consultant sets prices. You are paying for the moisture mapping and the written protocol as much as for samples, which TDLR says are often unnecessary. The assessor also charges separately for the clearance visit at the end.

Why did two companies quote such different prices for the same wall?

They are usually pricing different scopes, or one is an assessor and one a remediator. A remediation quote may include containment, HEPA scrubbing, removal and bagging, drying and rebuild, while another covers surface cleaning only. Compare the square feet, the materials removed, who fixes the water, whether rebuild is in, and how clearance is handled. The assessor's written protocol is the fair comparison baseline.

Do mold companies replace drywall, and do I need a Plano permit?

Some remediation contractors rebuild and some stop at clearance, so ask. Mold cleaning itself usually needs no permit in Plano. Replacing walls, plumbing, a furnace or AC system, foundation repairs and re-roofing do require permits, pulled by a contractor registered with the city, and electricians, plumbers and AC contractors must be state licensed. Confirm with Plano Building Inspections; other cities have their own rules.

Insurance

Does homeowners insurance cover mold in Texas?

Sometimes. The Texas Department of Insurance says most policies cover sudden and accidental water discharge, such as a burst pipe, but not a continuous leak, and most do not pay to remove mold except as part of repairing damage from a covered risk. Many policies cap or exclude mold remediation unless endorsed. Check your declarations page and never assume coverage. This is general information, not insurance advice.

Is a slab leak covered?

It depends on how the policy reads and how long it ran. Sudden and accidental discharge is the language insurers look for; a leak that ran for months and caused gradual damage is often treated as continuous leakage and excluded. Report the loss as soon as you detect it, since standard endorsement wording requires hidden losses to be reported within 30 days of detection, and document before cleanup.

What should I do before I file a mold claim?

Photograph the damage and the source before anything is cleaned or removed, write down the date you found it, keep every receipt and written scope, and ask the assessor for the protocol in writing. Report promptly. At the end, get the Certificate of Mold Damage Remediation; under Insurance Code 544.303 an insurer may not use remediated mold damage shown on that certificate against you in underwriting.

Does flood or sewer backup count?

Flood is excluded from standard homeowners policies and needs a separate flood policy; creek flooding along Rowlett, Spring and White Rock creeks is flood. Sewer backup usually needs its own endorsement. Sewage water is also Category 3 water, which changes how much material a protocol removes. Ask your agent what endorsements you have before you need them.

Texas rules, licensing, the certificate and renters

Who regulates mold in Texas, and do companies have to be licensed?

The Texas Department of Licensing and Regulation licenses mold assessors and remediators under Occupations Code chapter 1958 and 16 TAC chapter 78. Hired assessment or remediation of 25 contiguous square feet or more requires a license; unlicensed work is a Class C violation with a $2,000 to $5,000 penalty. Verify any company at tdlr.texas.gov/LicenseSearch. This site holds no license and does not do the work.

Can the same company test for mold and remove it?

Not on the same project. Occupations Code 1958.155 bars a license holder from performing both mold assessment and mold remediation on the same project, and bars anyone from owning an interest in both businesses on that project. The assessor writes the protocol and clears the job; a different remediation contractor does the removal. Both kinds of company can respond to a request here, but none does both for you.

What is the Certificate of Mold Damage Remediation and when do I get it?

It is TDI form MDR-1, due from the remediation contractor within 10 days of completing a licensed job. A licensed assessment consultant signs that the mold was remediated as the protocol required and that the underlying cause was addressed. Keep it: insurers may not underwrite against the remediated damage it documents, and Occupations Code 1958.154 requires sellers to give buyers every certificate from the past five years. Ask for it by name.

Do I have to disclose mold when I sell a house in Texas?

Texas sellers must give buyers copies of any Certificate of Mold Damage Remediation issued for the property in the previous five years (Occupations Code 1958.154). The general seller's disclosure notice under Property Code 5.008 covers water penetration and prior repairs. A certificate turns a mold history into a documented, remediated event, which is why it matters at resale. Talk to your agent or a lawyer about your own situation.

I rent in Plano. Does my landlord have to fix mold?

Texas has no landlord mold-inspection law and TDLR cannot force a cleanup. The duty comes from Property Code 92.052: after notice, a landlord must make a diligent effort to repair a condition that materially affects health or safety, if rent is current and the tenant did not cause it. Put the request in writing, by certified mail. The landlord, not the tenant, usually hires and pays. This is not legal advice.

Testing

Do I need mold testing before remediation?

Often not. TDLR says identifying the mold species is usually unnecessary, and the EPA says sampling is usually unnecessary when mold is visible, because there is no state or federal standard for a safe spore count. What a 25+ square foot job does need is a licensed assessment with moisture mapping and a written protocol, which may or may not include samples, and clearance at the end.

What does a clearance test involve?

The licensed assessment consultant returns while containment is still up and checks visually, confirms the work matched the protocol, records temperature, humidity and moisture readings, and takes samples only if the protocol calls for them. The result is a written passed clearance report with photos and lab results, which the certificate relies on. The remediation contractor cannot clear its own work.

Still have a question?

The process page walks through a licensed Texas job step by step, the cost guide has a table and calculator, and the blog covers insurance, renters, slab leaks and selling with a mold history in more depth. Or describe your problem once and let independent companies answer it with quotes. Call (972) 472-8749

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