★★★★★
Mold Pro Solutions did an excellent job from start to finish. They were professional, responsive, and took the time to explain what was causing the mold problem and what... Read more
IICRC-certified mold removal following S520 industry standards. Full containment, HEPA filtration, safe removal, antimicrobial treatment, and moisture source correction — backed by our 2-year mold-free warranty. Serving Potomac, Bethesda, Rockville, and all of Montgomery County.
What do you need help with?
Which mold service do you need?
Do you see visible mold?
Have any photos? (optional)
Photos help us give a more accurate estimate.
How urgent is your situation?
What's your main concern?
Best time to call you?
ABOUT THE SERVICE
Professional mold remediation is the controlled process of containing, removing, and eliminating mold at its source—not just cleaning what is visible. At Mold Pro Solutions, we strictly follow the IICRC S520 standard, the rigorous industry protocol that governs critical safety measures including physical containment, negative air pressure, HEPA filtration, specialized material removal, and antimicrobial treatments to ensure a complete return to a healthy environment.
In Montgomery County, remediation is a mechanical necessity rather than a cosmetic fix. The region’s high humidity and aging housing stock—particularly homes in Silver Spring and Rockville built before modern moisture-barrier standards—allow mold to embed itself deep within porous materials. Simply wiping surfaces with bleach fails to eliminate airborne spores or root-like structures, often leading to a cycle of recurring growth and structural damage.
Our approach solves the problem permanently by isolating affected zones and correcting the underlying moisture intrusion. Whether we are working in an attic in Potomac or a basement in Bethesda, every project concludes with post-remediation verification (PRV). This clearance testing provides documented proof that your home has reached professional safety standards and that the mold will not return.
| Metric | Data |
|---|---|
| EPA threshold for professional remediation | 10+ sq ft of visible growth |
| Most common remediation locations | Basements (42%), crawl spaces (28%), attics (18%) |
| Primary species requiring remediation | Stachybotrys, Aspergillus, Chaetomium |
| Avg. project timeline (residential) | 3–5 days for typical homes |
| Clearance testing pass rate (first attempt) | 98.5% of Mold Pro projects |
| Warranty | 2-year mold-free guarantee |
OUR PROCESS
Every Mold Pro remediation follows the same IICRC S520-compliant protocol, regardless of project size. Here is exactly what happens at each stage:
1. Assessment
Complete mold inspection to map all affected areas. We document moisture sources, measure contamination extent, and create a detailed remediation scope with transparent pricing — before any work begins.
2. Containment
6-mil polyethylene barriers seal the work area from the rest of your home. Negative air pressure machines with HEPA filters ensure spores cannot migrate to clean areas during removal. Zippered entry/exit points maintain containment integrity.
3. HEPA Filtration
Industrial HEPA air scrubbers run continuously throughout the project, capturing 99.97% of particles down to 0.3 microns — including mold spores that are typically 1–30 microns. This protects both workers and your family during the entire process.
4. Removal
Contaminated porous materials (drywall, insulation, carpet padding) are carefully cut, bagged in 6-mil poly bags, and disposed of following EPA guidelines. Non-porous surfaces (wood framing, concrete, metal) are HEPA-vacuumed, wire-brushed, and prepared for treatment.
5. Treatment
All affected surfaces receive professional-grade antimicrobial application to eliminate remaining spores and inhibit future growth. Structural wood surfaces are treated with mold-resistant encapsulant for long-term protection.
6. Clearance
Post-remediation air sampling by an independent lab confirms spore levels have returned to normal background concentrations. We do not release containment until clearance results pass. This documentation is included with every project.
DO YOU NEED REMEDIATION?
Not every mold situation requires professional remediation. Small surface mold on bathroom tile can be handled with household cleaners. But these situations demand certified professionals:
The EPA’s threshold for professional remediation. At this scale, containment and HEPA filtration are necessary to prevent cross-contamination. Most homes we remediate in Avenel and Burning Tree have 20–100+ sq ft of hidden growth.
Mold on coils, drain pans, or inside ductwork spreads spores throughout your entire home every time the system runs. Professional HVAC remediation with duct cleaning is the only effective solution.
If lab testing identifies Stachybotrys chartarum (black mold), Chaetomium, or elevated Aspergillus, professional containment and removal protocols are essential — these species require careful handling.
If mold returns within weeks of cleaning, the underlying moisture source has not been addressed. We identify and correct the cause — whether it’s a plumbing leak, foundation crack, or ventilation deficiency — not just the symptom.
Mold inside wall cavities, beneath flooring, in crawl spaces, or behind shower surrounds requires professional access, containment, and remediation. Common in flood-prone neighborhoods near Watts Branch and Willett Branch.
Worsening respiratory issues, persistent allergies, unexplained headaches, or eye irritation that improve when you leave home. Professional remediation combined with air quality testing protects your family’s health and provides documentation.
98.5%
of Mold Pro remediation projects pass clearance testing on the first attempt
PROVEN RESULTS
Real before-and-after results from Montgomery County homes. Every project includes clearance testing to verify success.
Before
Basement wall — extensive Stachybotrys growth
After
Same wall — remediated, treated, clearance passed
Before
Crawl space joists — white mold colony
After
Same area — treated, encapsulated, vapor barrier installed
TRANSPARENT PRICING
Every project receives a detailed, written estimate before work begins. No hidden fees. We work with all major insurance carriers.
$1,500+
Under 50 sq ft
✓ Containment & HEPA filtration
✓ Mold removal & treatment
✓ Antimicrobial application
✓ Clearance testing
✓ 2-year warranty
$3,500+
50–200 sq ft
✓ Everything in Small Area
✓ Multi-room remediation
✓ Structural drying
✓ Material replacement
✓ Insurance documentation
✓ Free pre-remediation testing
Custom
200+ sq ft or complex
✓ Full property remediation
✓ HVAC system cleaning
✓ Reconstruction coordination
✓ Dedicated project manager
✓ Extended warranty options
Free inspection and written estimate included with every project. We work directly with your insurance adjuster.
COMPLETE SOLUTIONS
Remediation is most effective as part of a comprehensive approach. These services work together to protect your home.
Pre-remediation assessment to map all affected areas & moisture sources
Lab analysis to identify species & verify post-remediation clearance
Emergency drying & restoration to address the moisture source
Comprehensive IAQ assessment after remediation for peace of mind
FAQ
Timeline depends on project scope. Small areas (under 50 sq ft) typically take 1–3 days. Medium projects (50–200 sq ft) take 3–5 days. Large-scale remediation involving multiple rooms, HVAC systems, or structural components may take 1–2 weeks. We provide a detailed timeline in your written estimate before any work begins, and keep you updated with daily progress reports.
For small, well-contained projects in isolated areas (a single bathroom or utility room), you can usually stay home. For larger projects involving multiple rooms, HVAC work, or projects where containment barriers are near living spaces, we recommend temporarily relocating — especially if household members have respiratory conditions or allergies. We’ll advise based on your specific project scope.
Not with proper remediation. The reason mold returns after DIY cleaning is that the underlying moisture source was never addressed. Our protocol corrects both the mold and the cause: we remove contaminated materials, treat remaining surfaces with antimicrobial solutions, and fix the moisture source (plumbing leaks, drainage issues, ventilation deficiencies). Our work is backed by a 2-year mold-free warranty — if it returns, we come back at no charge.
Coverage depends on the cause. Mold resulting from sudden, accidental events (burst pipes, storm damage, appliance failures) is typically covered by standard homeowner policies. Mold from gradual moisture intrusion, deferred maintenance, or long-term humidity issues is often excluded. We provide complete documentation — including lab test results, photo documentation, moisture readings, and detailed scope of work — and work directly with your insurance adjuster to maximize your claim.
We carefully protect and relocate contents before work begins. Items in the immediate work area are either moved to a clean area of your home or, for larger projects, stored safely on-site under protective covering. Soft goods (clothing, upholstered furniture) that were exposed to mold are evaluated — many can be professionally cleaned and restored. Items contaminated beyond salvage are documented with photos for insurance claims. We treat your belongings and your home with respect throughout.
“Mold removal” implies eliminating all mold — which is impossible since mold spores exist naturally everywhere. “Mold remediation” is the correct term: it means restoring your indoor environment to normal, healthy conditions where mold spore levels are at or below natural outdoor baselines. This involves containment, removal of contaminated materials, antimicrobial treatment, moisture correction, and clearance testing to verify success.
No. Painting over mold — even with “mold-resistant” paint — does not kill the colony or address the underlying moisture issue. The mold continues to grow behind the paint, weakening the substrate material, and spores continue to circulate through your HVAC system. Within weeks to months, the growth typically breaks through the paint surface. Professional remediation is the only way to properly address established mold growth.
Every Mold Pro remediation project includes post-remediation clearance air sampling by an AIHA-accredited laboratory. We collect air samples inside the containment area and compare them against outdoor baselines. Containment is not released until lab results confirm spore levels have returned to normal background concentrations. This clearance report is included in your final project documentation — essential for real estate transactions, insurance records, and your peace of mind.
REAL PROJECTS & RESOURCES
Real before-and-after results and pricing guidance from completed projects.
A finished Potomac basement developed musty odors and visible mold after repeated heavy-rain seepage. Mold Pro Solutions contained the area, removed contaminated materials, cleaned, dried, and prepared the space for verification.
A slow plumbing leak behind a master shower created hidden mold in wall cavities. The project combined remediation, source correction, and full bathroom reconstruction.
A Full Pricing Breakdown for Homeowners
What to expect from $1,500 to $10,000+ — and how to evaluate any quote you receive.
Get a free, no-obligation estimate from our IICRC-certified team. Same-day emergency response available throughout Montgomery County, MD.
Fill out the form below and we’ll contact you within 1 hour.
What do you need help with?
Which mold service do you need?
Do you see visible mold?
Have any photos? (optional)
Photos help us give a more accurate estimate.
How urgent is your situation?
What's your main concern?
Best time to call you?