Mold Remediation

Mold Remediation in Kent, Seattle & Tacoma

Mold growth almost always points to an underlying moisture problem. We identify the source, contain the affected areas, and remove mold safely and effectively.

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Mold problems start with moisture.

Leaks, past water damage, or incomplete drying allow mold to grow behind walls, under flooring, and in places you cannot see. We focus on the cause first, contain the affected areas, and remove mold safely - no scare tactics, no unnecessary work.

Mold remediation is one of our specialties. We are an IICRC Certified Firm with OSHA-trained technicians, with our Master Water Restorer credential currently in progress, with over a decade of combined field experience. We follow industry-standard protocols on every job - no shortcuts.

Our visual assessment is completely free. If you do not have a mold problem, we will tell you that and leave - no charge, no upsell. (Note: we remediate mold, we do not test for it - see why below.)

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Important, please read

We don't test for mold. On purpose.

We are remediation specialists - not mold inspectors. We do not test for mold or sample air quality, and that is a deliberate line we will not cross. When the same company that tests for mold is also the one that profits from removing it, the results get blurry and the customer is the one who loses. We keep it honest by staying out of testing entirely.

Here is how it actually works: we will come take a look. In the rare case we are not certain what we are dealing with, we will tell you straight - you should have it tested by a licensed, independent professional first. That is uncommon; we usually know exactly what we are looking at. But we do not hold testing certifications, and we will never pretend to.

What we do, we do completely. We treat it, we mitigate it, we remove it - and we make sure it does not come back.

Our Full Remediation Process

Find the source. Contain the area. Remove safely.

Start to finish - every step we take on a mold job, in the order we take it. IICRC standard protocols, no shortcuts.

See the full step-by-step process

Step 1, Free Inspection

On-site assessment & moisture source identification

We walk the property with thermal imaging and moisture meters. We are looking for two things: the visible (or suspected) mold growth, and the moisture source that allowed it to grow. The second one is more important than the first.

If we determine mold remediation is not necessary, we tell you that and we leave. No upsell, no scare tactics. If remediation IS needed, we walk you through scope and answer every question before any work is scheduled.

Step 2, Plan & Scope

Containment plan & written scope of work

For non-emergency jobs, we provide a written scope showing what materials need to be removed, how containment will be set up, what equipment will be used, and the expected timeline.

For insurance jobs, we coordinate scope with your adjuster before starting. For out-of-pocket, you sign off on the plan before any equipment shows up.

Day 1, Setup

Containment construction

Before any mold gets disturbed, the affected area gets isolated. Plastic sheeting on framing creates a sealed work zone. We set up negative air pressure using HEPA-filtered air scrubbers - this means air flows INTO the contained area and gets filtered before being exhausted, so spores cannot drift to clean parts of the home.

Doorways to the work zone become zippered entry points. HVAC vents in the affected area get sealed off. Anything that cannot be moved out of the work zone gets covered.

What you see: the work area looks like a quarantine zone for the duration of the job. This is intentional and correct - it is how mold work is supposed to be done.

Day 1-2, Removal

Removal of affected materials

Porous materials with mold growth get removed and disposed of properly. That includes affected drywall, carpet, padding, insulation, ceiling tiles, and similar items. Wood framing, hard surfaces, and other non-porous materials are cleaned in place if possible.

All removed materials are bagged inside the containment zone and removed through the controlled entry point. They go straight to disposal - not staged in your driveway, not sitting in trucks for days.

For larger jobs, removal can take a full day or more depending on scope. We document every cut and every removed item.

Day 2, Cleaning

HEPA cleaning & antimicrobial treatment

Every surface inside the containment zone gets HEPA-vacuumed - including framing, subflooring, and any structural elements that stayed in place. Then we apply an EPA-registered antimicrobial treatment to kill any residual spores.

Air inside containment continues running through HEPA scrubbers throughout this process. By the time cleaning is complete, the air quality inside the containment zone is typically better than the air outside it.

Day 2-3, Source Repair

Moisture source repair (your plumber or roofer) & structural drying

Mold returning is almost always a moisture-source issue. We point out where the moisture is getting in based on what our meters and cameras show - but diagnosing and repairing the plumbing, roof, or drainage problem behind it is a plumber's or roofer's scope, not ours. We do not do that repair work. You will want it fixed, or at least scheduled, before remediation wraps up - otherwise the mold comes back. If you do not have a trade you trust, we can point you to people we do.

Then we dry everything completely. Same drying process as a water damage job: commercial air movers, dehumidifiers, daily moisture monitoring. We do not declare a mold job complete until the area is dry enough that mold cannot return.

Day 3-5, Clearance

Final clearance & containment removal

Final visual inspection, final moisture readings, and (for larger jobs) optional third-party air clearance testing. Once everything passes, containment comes down and equipment leaves. The space is clean, dry, and ready for any rebuild work you choose to do.

For insurance jobs, all documentation - photos, scope, equipment logs, moisture readings, clearance results - goes into the Xactimate file submitted to your carrier.

Required by Washington State Law

Asbestos testing comes first, here's how we keep it moving.

Before we demolish anything, Washington State law requires an asbestos survey - on every home, whether yours was built in 1906 or yesterday. It is out of our hands, so we built our process around it instead of letting it hold up your job. Here is how it actually goes:

We collect the samples

Before any demolition, we take small samples from everywhere we plan to work - drywall, vinyl flooring, the mastic underneath, anything that will be disturbed - and drop them at the lab. Washington State law requires this on every home, new or old, so we just build it into the job.

We rush the lab and wait on results

Once the samples are at the lab, we put a rush on them. We will always work to get the results turned around as fast as possible, so the job keeps flowing smoothly.

Meanwhile, we prep the home

While the samples are at the lab, we get your home ready for demolition - setting up containment, laying floor protection, staging equipment - and start your insurance paperwork if that applies. The moment results are in, we are already set up and ready to go, so no time is lost.

One clarification: we are a mitigation company, not an asbestos abatement firm. Asbestos can show up randomly, and you will never know it is there until it is tested for. We take the necessary precautions to protect your home the right way, from start to finish. If a sample comes back positive, we coordinate a licensed abatement firm to handle that portion before our demo continues. On covered claims, the abatement is typically billed through your insurance like the rest of the mitigation; if you are paying out of pocket, we tell you what it changes before any of that work starts.

When to call us

You don't need to be certain there's mold to reach out. Many issues aren't obvious at first. Call if you notice any of the following:

Unusual odors - persistent musty or damp smells that don't go away, especially after water damage
Visible growth or staining - dark spots or discoloration on walls, ceilings, floors, or baseboards
Ongoing moisture issues - leaks, standing water, or areas that never seem to fully dry
Allergy-like symptoms that improve when you leave - hidden mold can affect indoor air quality even when you cannot see it
Recent water damage that wasn't fully dried - the 48-72 hour window after water exposure is when mold gets established

Where mold hides in PNW houses

The same housing stock fails in the same places. Where we look first, and where homeowners rarely do:

Bathroom fans that vent into the attic. Common in homes from the 60s through the 90s - the fan runs, but the moisture just moves upstairs. Years of shower steam condensing on cold roof sheathing grows mold above the ceiling. If you have never seen where your bath fan duct actually ends, that is worth ten minutes with a flashlight.
Closets on exterior walls. Closed door, no airflow, cold wall. Condensation forms behind the stored boxes, and nobody opens that corner for months at a time.
Behind furniture on north-facing walls. Same physics - the coldest wall in the house plus a couch blocking the air movement that would dry it.
Window sills and tracks. Older aluminum frames and single-pane glass sweat all winter here. The black in the track is usually surface growth; what matters is whether the sill and the drywall below it stayed wet.
Under sinks, at the back. A slow supply-line weep behind the cleaning supplies, hitting particle board that never gets a chance to dry.
Crawlspaces and attics. Unconditioned, unvisited, and where this region's moisture concentrates. We wrote up the underside of the house in our crawlspace water damage guide.

Black mold vs. other molds - what actually matters

"Black mold" gets a lot of attention but the reality is more nuanced. Almost all indoor mold should be handled professionally if it covers more than about 10 square feet or appears after a significant water event - regardless of color. We focus less on dramatic labels and more on what actually needs to happen: stop the moisture, contain the spread, remove the affected material, and verify air quality at the end.

Wondering what all of that costs? We published an honest breakdown of what mold remediation costs, including the jobs small enough to handle yourself.

Suspect mold in your home?

Free inspection. We will tell you honestly what we see.

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Real Mold Jobs

What homeowners say after the mold is handled.

“Cole's team did a great job removing areas of mold in our rental home. Reasonable price, respectable and efficient team.”
Margaret Pearl · Google review

“I called Cole to check out what I thought might be mold, and he was at my door within 30 minutes. Turned out to be a minor issue that didn't require any work, which I really appreciated his honesty on.”
Diane · Google review

“An inspector discovered extensive mold surrounding the water heater... every detail was addressed in a professional manner and above and beyond customer service from his entire team!”
Mary Anne DeLapp · Google review

Read all 19 Google reviews →

Containment & Protection

Tight containment. A clean, livable home.

Restoration is messy work - but your home should never feel like a construction zone. Before we touch anything, we build clean, professional containment around the affected area so the rest of your house stays exactly that: the rest of your house.

Sealed, professional barriers

Poly sheeting and zipper-door entries seal the work zone off from your living space. Dust, debris, and contaminants stay inside the containment - not drifting through your home.

Protected pathways

We lay floor and surface protection along every path we use, so you can move through your home safely and cleanly - whether we are on site or not.

Air kept under control

Where it is needed, we run negative-air control and air scrubbers so airborne particles are captured and filtered, keeping your air clean while we work.

Clean enough to leave standing

Our containment is tight, organized, and something we are proud to leave up overnight. Your home stays livable - kids, pets, and daily life keep moving around our work.

FAQs

Frequently Asked Questions

Do I actually need professional mold remediation, or can I bleach it myself?

For small spots on hard surfaces (under about 10 square feet), bleach can work. For anything bigger, mold inside walls, mold after water damage, or mold causing health symptoms - call a pro. DIY usually spreads spores and does not fix the underlying moisture source.

Will mold come back after you remediate it?

Not if the moisture source is fixed. That is why our process always starts with finding the moisture, not just the visible mold. Treating mold without finding the source is just delaying the next outbreak.

How long does mold remediation take?

Containment + removal usually takes 1 to 3 days. Drying afterward takes another 3 to 5 days. Once the remediation work is complete, any rebuild (drywall, paint, flooring) is a separate scope handled by a general contractor of your choice.

Is mold actually dangerous?

It can be, especially for people with allergies, asthma, or compromised immune systems. We do not fearmonger - we tell you when there is a real concern and when there is not. The honest assessment is part of how we work.

Do you test for mold or air quality?

No - and on purpose. We are remediation specialists, not mold inspectors. Testing for mold while also profiting from removing it is a conflict of interest, so we stay out of testing entirely to keep things honest. We will come take a look, and in the rare case we are not certain what we are dealing with, we will tell you to have it tested by a licensed, independent professional first. What we do completely is treat, mitigate, and remove mold - and make sure it does not come back.

Does insurance cover mold?

It depends on the cause and your policy. Mold from a sudden, covered water event (burst pipe) is often partially covered, with caps. Mold from long-term humidity or maintenance issues usually is not. We document everything and help you understand your options before work starts.

What does mold remediation cost?

It depends on how much mold there is, where it is, and what is driving the moisture - so we never quote blind. Inspections are free, and you get the price before we start. Small surface jobs are inexpensive; mold inside walls or across large areas costs more because there is more to safely contain and remove.

Will I need to leave my home during remediation?

Usually no. We build containment around the work area with plastic sheeting and negative air pressure so spores do not spread to the rest of the house, which means the rest of your home stays livable while we work. We tell you up front if a job is an exception.

Are you licensed and insured for mold work?

Yes - Washington State contractor license #CLEANSR742DL, fully insured, IICRC Certified Firm, and OSHA-trained, with our Master Water Restorer credential currently in progress. Mold removal done wrong spreads the problem, so we follow real containment and removal protocols every time.

What if removing the moldy drywall means demo in an older home?

If the remediation requires demolition and the home could contain asbestos, Washington law requires the suspect materials to be tested before that demo - no matter the age of the house. We collect samples, rush the lab, and prep containment while we wait so we can move the moment results clear.

Do you do the rebuild after the mold is gone?

No - we are a mitigation and remediation company. We find the moisture, contain and remove the mold, treat the area, and dry it out, then document everything. Replacing drywall, paint, or flooring afterward is a separate scope handled by a general contractor of your choice.

What areas do you serve?

We serve King, Pierce, Snohomish, Kitsap, Thurston, and Mason counties - Seattle, Kent, Renton, Auburn, Federal Way, Tacoma, Bremerton, Olympia, Shelton, and surrounding communities. We handle homes, rentals, condos, and commercial properties alike.

24/7 · Emergency Response

Free mold inspection. No pressure.

If we do not see a problem, we will tell you.