How Much Does Mold Remediation Cost in Houston?
Mold remediation in Houston, TX typically costs between $1,500 and $6,000 for residential projects. Small jobs (under 50 sq ft) start around $1,500, while large projects involving multiple rooms or structural repair can exceed $8,000. The exact price depends on the size of the affected area, mold type, accessibility, and whether materials like drywall or insulation need replacement.
Typical Price Ranges
| Project Size | Typical Cost | Example |
|---|---|---|
| Small (under 50 sq ft) | $1,500 – $3,000 | Bathroom mold, small closet area |
| Medium (50–150 sq ft) | $3,000 – $5,000 | Attic section, one wall section |
| Large (150+ sq ft) | $5,000 – $8,000+ | Full garage, multiple rooms, whole attic |
These ranges reflect Houston-area pricing in 2026. Costs may be higher if hazardous mold species (like Stachybotrys) require additional containment and safety measures.
What Affects the Price
Size of the affected area
This is the biggest factor. A small patch of mold on bathroom tile is a different job than mold throughout an attic. Larger areas require more containment, more labor, and more materials.
Location and accessibility
Mold behind drywall, inside HVAC ductwork, or in tight attic spaces takes longer to access and remediate than mold on an exposed surface. Houston's slab-on-grade construction means fewer basements, but attic and wall cavity mold is common.
Type of mold
Not all mold is equally hazardous. Black mold (Stachybotrys) and other toxigenic species require more rigorous containment and personal protective equipment, which adds to cost. A professional mold test identifies the species before work begins.
Material replacement
Mold on non-porous surfaces (tile, metal, glass) can be cleaned. Mold in porous materials (drywall, carpet, insulation, wood framing) usually means those materials need to be removed and replaced. This is often the largest variable in cost.
Moisture source repair
Good remediation includes fixing whatever caused the mold — a leaking pipe, poor drainage, inadequate ventilation. Some companies include this in their quote; others charge separately. Ask upfront.
How to Avoid Overpaying
- Get a written estimate before work starts.Any company that won't give you a clear price upfront is a red flag.
- Ask what's included. Does the quote cover testing, containment, removal, disposal, and clearance testing? Or are those extra?
- Be wary of scare tactics. If someone tells you your entire home is contaminated after a 10-minute visit, get a second opinion.
- Don't pay for work you don't need.A reputable company will tell you what needs remediation and what doesn't. Some mold can be cleaned without full remediation.
- Check for a warranty. A company that stands behind its work will offer one. We include a 12-month warranty on all remediation.
Does Insurance Cover Mold Remediation?
It depends on the cause. If mold resulted from a covered peril — a burst pipe, storm damage, appliance leak — your homeowner's insurance may cover remediation costs. Mold from long-term humidity, gradual leaks, or maintenance issues is typically not covered. Read our full insurance guide for Texas homeownersfor details on what's covered, how to file a claim, and common mistakes to avoid.
Get a Free Estimate
We provide free inspections and written estimates with no obligation. We'll show you exactly what needs to be done and give you an honest price — even if the answer is that you don't need us. Not sure if you have mold? Check our signs of mold guide first, or call us to get started. Comparing prices across markets? See our Savannah mold remediation cost guide for Georgia pricing.