Professional Mold Removal in St. Louis by PuroClean


Mold growth can cause serious health risks and structural damage if not properly addressed. At PuroClean Emergency Restoration Services, we offer expert mold removal in St. Louis with proven methods to detect, contain, and eliminate mold at its source. Whether caused by water damage, humidity, or poor ventilation, mold can spread quickly and compromise indoor air quality, putting your health and property at risk.

We provide comprehensive mold remediation services for homes, offices, and commercial buildings throughout St. Louis, MO. We also offer services in Metro-East Illinois, Belleville, Edwardsville, Granite City, Alton and surrounding areas.

Our certified technicians use advanced equipment, including HEPA air scrubbers and moisture detection tools, to identify hidden mold and determine the extent of contamination. Once assessed, we create a custom removal plan to safely contain affected areas and prevent cross-contamination.

We follow strict IICRC and EPA guidelines for mold removal and disposal. Our process includes isolating the contaminated zones, removing mold-infested materials, cleaning and treating surfaces with antimicrobial agents, and ensuring proper drying to prevent recurrence. For sensitive environments like hospitals, schools, or elder care facilities, we offer specialized containment and clearance testing to meet the highest standards.

If you’re concerned about mold growth or have experienced water intrusion recently, don’t wait. Trust PuroClean for reliable, prompt, and professional mold removal in St. Louis. We’re here to restore your property and protect your health with precision and care.

Our Mold Removal Services:

  • Mold Containment: We seal off affected areas using industry-grade containment systems to prevent airborne mold spores from spreading to clean parts of your property.
  • Mold Inspection: Our comprehensive mold assessment identifies visible and hidden growth, traces moisture sources, and guides a targeted remediation plan.
  • Mold Removal Techniques: We apply advanced remediation methods to eliminate mold from contaminated surfaces and concealed spaces, ensuring complete and lasting removal.
  • Post-Remediation Verification: After cleanup, we conduct visual inspections and air sampling to verify that mold levels are safe and your environment is fully restored.
  • Mold Odor Removal: We eliminate lingering mold odors at the molecular level using professional deodorization systems, leaving your indoor air fresh and breathable.

Our Mold Removal Process in St. Louis, MO


At PuroClean Emergency Restoration Services, our approach to mold removal in St. Louis is both thorough and efficient. Every project begins with a detailed mold inspection using moisture meters, thermal imaging, and air sampling when needed. We evaluate the cause of mold growth—whether from plumbing leaks, flood damage, or poor ventilation—to ensure the underlying problem is resolved.

After identifying all affected areas, our team isolates the contaminated zones using physical barriers and negative air pressure machines to prevent spores from spreading. We then proceed with removal of porous materials like drywall, insulation, or carpeting that cannot be safely cleaned. Non-porous surfaces are scrubbed, sanitized, and treated with antimicrobial solutions to kill remaining mold spores.

Once removal is complete, we dry the area thoroughly using commercial-grade dehumidifiers and air movers. Mold thrives in moist environments, so restoring optimal humidity levels is essential to long-term prevention. If needed, we also provide HVAC cleaning and air duct inspections to ensure that mold hasn’t spread through the ventilation system.

Our team in St. Louis, MO adheres to all local regulations and industry best practices to deliver safe and effective mold remediation. We provide post-remediation verification (PRV) testing upon request to confirm that mold levels have returned to safe limits, offering peace of mind to property owners and occupants.

From initial inspection to final clearance, PuroClean is the trusted name for mold removal in St. Louis. Our process is backed by experience, certifications, and a commitment to your safety and satisfaction.


“I want to give a HUGE shoutout to Scott for being so awesome! Every client of mine that I send to him he takes care of like they are his only client. He makes sure they get taken care of from start […]
Ashlynn B.

We were very pleased by the excellent Services of this company, Chad S and his crew. Very careful – excellent cleanup &we couldnot ask for guys who cleaned so well. They are excellent – we will […]
Very Pleased…Excellent Services
Alton, IL

Awesome service. Came out immediately when we needed them most and were super friendly and knowledgeable! – Agent Blake
Awesome service
Highland, IL

Awesome experience! These folks are true professionals and they made the absolute best out of a not-so-fun flooding experience. Quick response saved us lots of money! Thank you
Awesome experience!
Lebanon, IL

Best Restoration company around Chuck, Paul, Scott and I forgot her name in the Caseyville IL. Office are the best back on September 21 me and my family lost everything due a house fire but Chuck and […]
Best Restoration Company Around!
O’Fallon, Illinois

Latest Mold Removal and Remediation Blogs

What Causes Mold Growth: Understanding the Risks


Mold is a naturally occurring fungus that spreads through microscopic spores and thrives in damp, poorly ventilated environments. To provide effective and lasting mold removal in St. Louis, PuroClean Emergency Restoration Services begins by identifying and addressing the root causes of mold growth. These causes are common across all regions and types of buildings.

Here are the most frequent factors that contribute to mold development:

  • Excess Moisture: Mold needs moisture to grow. Water leaks from pipes, roofs, appliances, or flooding events create ideal conditions.
  • High Humidity: Indoor humidity above 60% encourages mold growth, especially in warm, unventilated spaces.
  • Poor Ventilation: Bathrooms, kitchens, basements, and attics without proper airflow can trap moist air, fueling mold colonization.
  • Condensation: Cold surfaces like pipes, windows, and walls can collect condensation, which gradually saturates nearby materials.
  • Damp or Wet Materials: Mold can grow on wet drywall, insulation, carpeting, or wood if not dried properly after water exposure.
  • Inadequate Building Maintenance: Issues like clogged gutters, foundation cracks, or unsealed windows can allow water to enter the structure.
  • HVAC Issues: Contaminated air ducts or malfunctioning systems can distribute mold spores throughout the building.
  • Construction Defects: Poorly sealed roofs, walls, or vapor barriers can trap moisture inside building materials.

Understanding these causes helps property owners prevent future infestations and supports more effective remediation.

If you suspect mold in your home or business, trust PuroClean Emergency Restoration Services for comprehensive mold removal in St. Louis. Serving St. Louis, MO, we provide expert detection, remediation, and prevention to restore healthy indoor environments.

Mold FAQs

Can a leaking ceiling cause mold?

Yes. Mold grows and thrives in wet or moist areas and can cause significant structural damage. If mold caused by a leaking ceiling is not remedied quickly, you may have to remove and replace insula[…]

How can I prevent mold growth in my home?

Preventing mold requires fixing moisture problems in your home. Repair leaks in the walls, roof, gutters, and plumbing pipes, keep indoor humidity at 30-50% by using a dehumidifier, ventilate appli[…]

How do I prevent mold after water damage?

It is important to remove the water as quickly as possible and to dry all affected materials. This includes under cabinets, under walls in adjacent rooms, the subfloor, lower rooms where the water […]

How does mold affect our health?

Mold-sensitive individuals may exhibit allergy symptoms, such as sneezing, runny or stuffy nose, coughing, itchy eyes, wheezing, and skin irritation. Mold exposure can also trigger asthmatic sympto[…]

Where does mold grow in homes?

Mold commonly grows in areas that are prone to moisture, such as the basement and bathroom. However, mold can also grow in hidden areas of the home, such as behind walls, under the floor, in the ai[…]

Why choose PuroClean for your water damage restoration needs in Metro-East Illinois?

Trusted

We have earned the trust of homeowners, insurance professionals, home service providers, and property managers throughout North America.

State-of-the-art Equipment

We use a range of modern, high-quality equipment that work together to create the most effective drying conditions.

Ongoing Communication

At every step, we keep you and your insurance agent informed. We want everyone involved to understand what is happening, what to expect, and what to do.

Thorough Cleanup

We treat water-damaged property as if it were our own. Our technicians dry every item respectfully and professionally, from your carpet to your family photographs.

Unlike any other water damage repair company, we rescue and restore lives and property with the PuroClean QuickDry System™ in the shortest possible time and at a much lower cost than the traditional drying systems or unnecessary removal of affected materials that can be dried that some competitors resort to. Using state-of-the-art equipment for drying, dehumidifying, deodorizing, and disinfecting, we restore your home or business with minimal disruption so that you can get back to your normal life.

PuroClean Emergency Mold Removal Services

  • Mold remediation

  • Structural demolition

  • Contents removal

  • Odor removal

  • Furniture restoration

  • HEPA vacuuming

  • Anti-microbial spraying

  • Reconstruction

Urgency and sensitivity

We understand the distressing impact that mold growth can have on residential and commercial properties. As the “Paramedics of Property Damage™,” we are at your service 24/7, prepared to salvage your property professionally. We remediate your home or business with compassion and minimal disruption to your daily life.

Detailed and Accurate Assessments

Our professionals use advanced equipment such as moisture meters and infrared cameras to identify the full extent of moisture intrusion that can lead to mold growth. We then guide you through the restoration process, keeping you informed every step of the way to ensure you feel safe and confident as we eliminate all traces of mold from your property.