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November 10 - Seattle, Washington
Mold Removal & Remediation

We discovered a really bad mold issue on our bathroom ceiling fan. There is visible mold on the bathroom ceiling, but that had been easy enough to scrub off with lysol products. However, the mold build up on the fan, its too much for us. We think the bathroom fan also needs to be replaced, but cannot tell because of the mold build up. Our landlords live out of state and would like the company to work directly through them for payment and such.

May 21 - Seattle, Washington
Mold Removal & Remediation

I'm looking for mold removal/remediation.

April 20 - Seattle, Washington
Mold Removal & Remediation

I recently purchased a house which has some fungus growth in the attic. I need to have that fungus growth remediated ASAP (we are scheduled to close this Wednesday) as we'd like to have it done before we move in. Thank you! Regards, Matt

March 17 - Seattle, Washington
Mold Removal & Remediation

Mold removal - basement leak

April 7 - Seattle, Washington
Mold Removal & Remediation

We have a small leak in our roof that was just discovered. That was why we went up to begin with. While up ther it was discovered we now have mold off the white fuzzy variety. It's likely that its a combo of the moisture from the leak but we also just added a bunch of insulation - professionally done. Please help! We would like to know your recommendation and what you use to get rid of. It. And of course how much it is all going to cost.

November 25 - Seattle, Washington
Mold Removal & Remediation

We have mold in our basement carpet and need to have it removed as the odor has filled the house. the carpet doesn't have a pad but we think the area is small a oneof our pets peed there last weekend. we didn't solve the problem quick enough unfortantly.

April 7 - Seattle, Washington
Mold Removal & Remediation

Mold problem

February 12 - Seattle, Washington
Mold Removal & Remediation

I have some mold in my living room, bathroom

January 11 - Seattle, Washington
Mold Removal & Remediation

Black mold removal cleanup and prevention.

Mold Removal & Remediation near Seattle, Washington

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Services Offered: Environix Seattle      
Mold Removal & Remediation x      
Mold Testing x      
Mold Inspection x      
Lead Testing & Inspection x      
Asbestos Remediation x      
Asbestos Testing x      

Environix Seattle

12303 8th Ave. NE
Seattle, WA 98125

Environix Certified Provider

Schedule Today

Our principles have always remained the same:  Provide the absolute best consulting and remediation services for indoor environmental issues.  For information on our asbestos services, check out our new site. For other services visit our parent site at

Recent Mold Inspection & Remediation Clients Include:

  • US Coast Guard
  • UW Medicine
  • McChord Air Force Base
  • Port of Seattle
  • University of Puget Sound

Earth To Earth LLC

Seattle, WA 98133

Interior Demolition Specialist

Seattle, WA 98125



Apex Demolition

Seattle, WA 98103


405 Porter Way # B
Seattle, WA 98101



Indoor-Restore Environmental Services

"905 4th Ave, #15 "
Seattle, WA 98104

Washington State Department of Health-

Renters, Landlords, and Mold


Mold problems in buildings are a result of water and moisture problems. Renters need to operate the heating and ventilation systems to reduce water condensation. Renters need to notify landlords promptly, in writing, of any water leaks or moisture problems. If there is a water leak or moisture problem, it should be fixed by the landlord. Your local building and code enforcement official may take action if building problems are not addressed - they won't respond to mold complaints, so it's important to stress the source of the water problem.


Landlords are responsible for maintaining rental units, including fixing building problems such as water leaks and ventilation or heating defects which may lead to moisture problems. Landlords must notify their tenants about the health hazards associated with exposure to indoor mold and ways to control mold growth in their dwelling units. Posting this information in a visible, public location at the dwelling unit property is allowed. The following materials can fulfill the notification requirements:

Resources for Resolving Problems

Example of Remediation for Attic Mold in Seattle

Date of Remediation: Jan. 25th, 2011

Mold Growth:

  • Inspection of attic revealed moderate mold growth throughout significant areas of attic sheathing.  At this time, the mold growth has led to some structural damage, and is an indication of a failure of the home to adequately exhaust damp air created by the occupants. 


  • Elevated moisture noted throughout significant portions of the attic sheathing.  It is necessary to thoroughly dry the framing and sheathing prior to the application of encapsulant.


  • No obvious roof leaks were observed on inspection of the attic.  Environix is not a professional roofing contractor and cannot guarantee the condition of any roofing structure.


  • Insulation has been saturated and must be removed.


  • Insufficient ridge area ventilation installed throughout attic.  This limits the exhaustion of humid air through the roof assembly.
  • Insufficient soffit ventilation throughout the attic.  Existing ventilation blocked by improperly installed insulation.  This limits the influx of fresh air through the soffit vents, leading to excess condensation and mold growth.  It is recommended that blocked soffit vents be cleared and all soffit venting be protected by the appropriate baffling.
  • Proper ventilation is necessary to minimize condensation and subsequent mold growth.  All areas of elevated moisture or improper ventilation must be addressed to ensure the effectiveness of our process.  Current code calls for 1sqft net free area of ventilation for every 300 square feet of attic space, distributed evenly between the ridge and soffit area. 

Air Seal:

  • The ceiling currently lacks proper air sealing, allowing excess moisture and heat to escape into the attic area.  This air leakage is a key cause of energy loss, attic condensation and mold growth. 


  • The exhaust ducting from the bathroom fan, whole house fan and/or kitchen range exhaust hood is not appropriately venting to the exterior.  This condition allows warm moist air to flow into the attic and is likely a contributing factor in condensation.  It is necessary for all exhaust ducting to vent completely to the exterior through insulated ducting and be connected to a dedicated roof jack with appropriately sized collar.

Trash and debris:

  • The attic is currently free from excessive amounts of trash and construction debris.

Interior Ventilation:

  • The property is heated primarily by electric wall heaters or radiant hydronic heating.
  • Homes that are not equipped with a forced air heating system must have special care taken to ensure appropriate ventilation, and prevent the buildup of humidity and other pollutants.
  • Current standards recommend 0.35 to 0.7 air changes per hour, this may be attained by installation of a ducted heat recovery ventilator or upgrading mechanical exhaust ventilation to function on a continuous flow (the recommended units for this method is a Panasonic Whisper Green exhaust fan).
  • The estimated square footage of this home is 1700 sq.ft.
  • The necessary flow rate to establish 0.35-0.7 ACH for this home is 90-180CFM.
  • The home is equipped with an exhaust fan above the laundry fixture that has been set on a timer.  At the time of inspection the timer had been deactivated.
  • To achieve the necessary ventilation 2 of the existing exhaust fans can be replaced with a Panasonic Whisper Green 80CFM exhaust fan set to run at 50CFM continuous flow and for 60 minutes at 80CFM once the motion-sensor has been activated.


  • Roofing contractors have informed the home owners that the roofing should be replaced, it will be most cost-effective to remove all wet and/or contaminated sheathing at this time.
  • All insulation should be removed as has been saturated.
  • Protective baffles should be installed to prevent insulation from blocking the soffit vents.
  • The vaulted portion of the attic may need to have batt insulation installed as thick as possible while the roof is off.  Contrator must ensure that appropriate ventilation is maintained.
  • All possible penetrations should be sealed using expandable foam, in accordance with standard air-sealing procedures.
  • Appropriate ventilation should be installed in the attic to ensure that moisture does not return to the attic.
  • All exhaust fans should be ducted fully to the exterior via insulated ducting and connected to dedicated roof jacks.  Roof jacks should be placed as close to the exhaust fans as is feasible.
  • Once the roof has been replaced and all insulation removed the few remaining areas of wet building materials (rafters and gable walls) can likely be dried by the home owners using fans and heaters.
  • Once the wet building materials have been thoroughly dried, Environix can perform the 2-stage remediation process listed above in select areas of remaining contamination.
  • Once the all work has been completed the flat portion of the attic should be insulated to industry standards of no less than R-38.  

Make sure your mold remediation contractor follows environmental guidelines!

Check out our Mold Removal and Mold Remediation pages for more info.


Mold Remediation News in Seattle


Evictions skyrocket, along with complaints of crummy rentals


The young couple and their dog were living in the crawl space of a South Park building, with dirt floors and not enough ceiling height to stand upright. The rent? About $300 a month.

Another tenant, a college student in the University District, was renting a tiny furnace room as her living quarters, until she twice went to the hospital with carbon monoxide poisoning.

Those were just two cases handled by Seattle's Department of Planning and Development, which saw a small rise in the number of substandard housing calls and a huge rise in eviction complaints.

The trends, referenced in a department briefing this week, spoke to the continuing, painful fallout of the Great Recession. Housing advocates said foreclosures, continuing joblessness, and a lack of affordable housing have led to a massive increase in evictions, and a steady stream of tenants living in dangerous conditions.

Last year, the city's Planning and Development department, which enforces building codes, saw a doubling in calls about evictions. Some of the increase came from better record keeping, said Karen White, director of the department's code compliance division. Read more.

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