Mold Remediation Seattle, Lynwood and Western Washington

Understanding Mold & Mold Cleanup Seattle Homeowners Shouldn’t Ignore

Mold is a type of fungus, it is Nature’s Recycler, decomposing dead organic material
  • Mold is a good thing… outside!
Mold needs TWO ingredients to initiate and propagate
  • A constant water supply AND a food source
  • Your wood dresser is a food source, but no water so no mold!
  • Your kitchen sink is always wet, but it is not organic, so no mold!
Estimated over 100k species of mold worldwide; many colors 
  • Penicillium, Aspergillus, Cladosporium, Chaetomium, Stachybotrys
  • Only a handful are mycotoxins, toxic substances produced by a fungus
Mold is microscopic, always in the air, traveling as spores
  • mold sporesSpores are the reproductive method for all types of mold

Restoration companies are concerned about mold in three spaces

  • Attic Space, Living Space, Crawlspace

Types of Mold

Know the Types: Mold Remediation Seattle Pros Tackle Every Day

Attic Mold

#1 Reason for Attic Mold – Greater than 90% of attic mold Seattle residents can face is caused by inadequate ventilation alone. Other common reasons include roof leaks around skylights and vents, tree branch damage during storms, or simply the age of your roofing materials. By identifying these issues early, Seattle homeowners can prevent costly mold growth and protect their property’s long-term health and value.”

    • Peaked roofs have more mold growth on north facing side – never gets warmed up in winter months due to Seattle latitude.
  • We use chemistry developed by Sandia National Laboratories for military anti-germicidal warfare. Not available in stores, we work with a licensed formulator.
  • Our process is efficient, effective, almost always only takes 1 visit, cost friendly.

Seattle Mold Cleanup Before & After

Living Space Mold

#1 Reason for mold – relative humidity sustained above 60%.

  • Shower wall affected (organic), shower tile and shower head not affected (inorganic).
  • Unoccupied home– hot water heater pinhole leak, hot moist air raises relative humidity.
  • Inside a closet, only surface damage and can be cleaned and disinfected.
  • Wood window seal – single pane glass, condensation, constant water supply, both mold ingredients. Best to have double-pane vinyl framed windows.
  • Ceiling mold – if leak from above, material has to be removed and area disinfected.
  • Inside Chemistry – quats, or essential oil Thymol (doesn’t even have a warning label, can drink it).

Crawlspace Mold

#1 Reason for Mold – Leak in the crawlspace from pressurized pipes (freshwater lines).

  • Flooded or heavily water affected crawlspaces often have heavy wet, slimy mold on the joists and flooring ceiling.
  • We first remove the batt insulation, then chemically treat the wood, then fog the area, then set drying equipment.
  • If the area is not water affected but has surface mold because of higher RH (common in large areas), we remove the insulation, surface treat the wood, replace the same insulation.

crawlspace mold cleanup Seattle


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“Very impressed. Already recommended to a friend.”
Kia A.

“Jon was friendly, professional, and informed us of every step of the process of our clean up.”
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“Both Bob and Mark provided excellent, professional service. I cannot sing their praises enough. I would recommend PuroClean to anyone in need of their services.”
Linda W.

“I would highly recommend PuroClean Northwest to anyone. Bob Jordan accomplished things way beyond my greatest expectations. I can not say enough good things about PuroClean and Bob Jordan.”
Jim B.

Mold Testing

State of WA Mold Testing & Inspection Standards

A Washington State Certified Mold Inspector is required to identify mold

  • Contractors and home inspectors use the term “possible microbial growth”

No certification requirements for performing mold remediation in Washington State

  • IICRC offers mold remediation certification, we are an IICRC certified company

Two principal test methods

  • Air sampling is the most common – determines ambient mold levels vs. outside levels
  • Tape lift (surface) identifies mold on a surface, but does not indicate indoor air quality

mold testing State of Washington

Mold FAQs

What is mold?

Mold is a type of fungus that lives almost everywhere there is moisture, oxygen, and organic matter. Mold plays an important role in nature as it helps decompose organic material. However, mold fou[…]

I have black mold on my metal framed windows. What should I do?

Because of the temperature difference between the outside of the house and the inside, the metal window frame stays cold and when the moisture in the interior air hits that frame, it condenses into[…]

How do I know if it’s black mold?

The only way to be able to name mold is to have a sample tested at a qualified laboratory.[…]

What is mold?

Mold is a type of fungus that lives almost everywhere there is moisture, oxygen, and organic matter. Mold plays an important role in nature as it helps decompose organic material. However, mold fou[…]

Does renter’s insurance cover mold damage?

Every Insurance policy is different. You should contact your broker/agent or your insurance company to determine the amount of coverage that you have.[…]

Other Common Causes for Mold Remediation Seattle Residents Miss

Roof Leaks

Roof leaks are a common cause of mold contamination in both residential and commercial properties. When water infiltrates through damaged shingles or flashing, it often seeps into dark, undisturbed spaces like attics, insulation, or wall cavities. These areas provide ideal conditions for mold growth. If undetected, this hidden moisture can lead to severe mold infestations that compromise indoor air quality and weaken building materials. Immediate mold cleanup Seattle and professional inspection are necessary to stop further damage. Our team specializes in fast, effective mold remediation in Seattle, Lynwood and Western WA to keep your property safe.

Weather-Related Incidents

Storms, flooding, and heavy rainfall frequently trigger water damage in Western Washington homes, particularly in basements and crawlspaces. After the water recedes, lingering moisture creates the perfect breeding ground for mold. Timely mold remediation Seattle is essential to stop mold growth before it spreads. PuroClean offers certified mold remediation in Seattle, Lynwood and Western WA to contain and eliminate mold after weather events.

Excessive Humidity

Humidity levels above 60% can quickly lead to mold growth in vulnerable areas like bathrooms, laundry rooms, and poorly ventilated basements. In these environments, moisture doesn’t evaporate properly, allowing mold to take hold. PuroClean provides expert mold cleanup Seattle services to address high-humidity zones, including full mold remediation Lynwood for long-term prevention. From air quality control to targeted structural drying, our mold remediation Seattle solutions restore safety and health to your space.

Mold FAQs

Why does mold grow in homes?

Mold releases microscopic mold spores into the air. Since mold spores are airborne, all homes have mold spores in them, some more than others. Mold grows in homes because almost all homes meet the […]

How long does it take to remove mold?

[VIDEO] The time is directly related to the amount of mold and where it is growing. Jobs can take anywhere from 4 hours to 5 days, or longer. Every situation is different![…]

How do I know if it’s black mold?

The only way to be able to name mold is to have a sample tested at a qualified laboratory.[…]

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[…]

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?

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.