
BeforeMold under a kitchen sink cabinet
Renton · Mold Remediation
A weeping fitting kept the cabinet base wet. Cabinet bottom replaced, cavity cleaned, leak repaired.
A live dispatcher answers 24/7
425 390 59114.9(1,284)Free estimate
Mold removal, ventilation and vapor-barrier work for attics and crawl spaces.

Attics and crawlspaces are where Northwest houses hide their moisture. A bath fan venting into the roof space, a dryer duct knocked loose, bare soil under the floor, a downspout discharging against the foundation — all of them feed growth on surfaces nobody looks at until a smell reaches the living room.
We work in those spaces with proper respiratory protection and lighting, photograph everything before we touch it, remove the growth, replace ruined insulation and correct the ventilation or drainage that caused it.
One written scope, one crew, one point of contact from the first call to the final walkthrough.
The same sequence on every loss, from a single wet room to a whole floor.
We go into the attic and the crawl space, photograph what is there and measure moisture.
Access points are contained so nothing travels into living areas.
Sheathing and framing are cleaned and treated; ruined insulation comes out.
Ventilation, vent routing, vapor barrier or drainage is fixed.
You get photos and readings showing the finished condition.
Drag the handle on any photo. These are our own projects across King, Snohomish, Pierce and Skagit counties, with the days on site and what the homeowner paid out of pocket.

BeforeRenton · Mold Remediation
A weeping fitting kept the cabinet base wet. Cabinet bottom replaced, cavity cleaned, leak repaired.

BeforeLynnwood · Mold Remediation
A slow hose leak soaked the wall behind the machine. Drywall replaced, framing treated, paint restored.

BeforeMount Vernon · Mold Remediation
Groundwater kept the block wall damp all winter. Growth removed, wall treated, interior drainage added.

BeforeAuburn · Mold Remediation
A wet coil and a sealed closet kept the walls damp. Growth removed, coil cleaned, closet vented and refinished.

BeforeBellevue · Mold Remediation
A bath fan dumped humid air into the attic. Sheathing treated, insulation replaced, fan ducted outdoors.

BeforeKirkland · Mold Remediation
A cold exterior wall with no airflow stayed damp. Growth removed, wall insulated, cavity vented.

BeforeBremerton · Mold Remediation
Bare soil drove humidity into the joists. Growth removed, joists treated and a sealed vapor barrier installed.

BeforeEverett · Mold Remediation
Failed grout fed the cement board for months. Containment, removal, HEPA cleaning, treatment and new tile.

BeforeTacoma · Mold Remediation
No vapor barrier and a failed downspout kept the wall wet. Growth removed, wall treated, drainage corrected.
Every project is our own work, photographed on site and approved by the homeowner.
Every review below is tied to a completed job. Where a customer raised a problem, the technician who ran the work answered it himself.
4.9
28 reviews on this page
We do not delete the four-star reviews. If a job fell short, the reply below it says what we did about it.
Mold across the bathroom ceiling from a fan that never moved enough air. They cleaned it, but more importantly they upsized and re-ducted the fan so it has not come back in two winters.
Mold remediation
Reply from the technician on the job
Thanks for asking the hard questions about what was safe. It made the scope better. If anything starts to feel damp again, call the office and we will read it for nothing.

Kevin IshidaMold Remediation Specialist
Two companies wanted to tent the entire house and replace everything. They found the real source, a failed shower pan behind the tile, contained one wall, and finished in four days. Clearance report came with photos.
Mold remediation
Reply from the technician on the job
Appreciate it. Containment is the part nobody sees and the reason the rest of the house stays clean. We would rather make one extra visit than have you live with a smell.

Kevin IshidaMold Remediation Specialist
The remediation was thorough and the clearance came back clean. I would have liked a call before the containment came down, since I came home to it gone and no note.
Attic & Crawl Space Mold Removal
Reply from the technician on the job
Thank you for both halves of that review. The work was right, the timing was not, and we took it back to the crew.

Hector VillanuevaSenior Water Technician
Wind drove rain through a bedroom window for a full day and we did not notice the wall was soaked until the paint bubbled. They tarped the roof, dried the cavity, and handled the insurer entirely. It went through without a single pushback.
Storm and flood damage
Reply from the technician on the job
Appreciate the review. Wind-driven rain almost never enters where the stain appears, so the thermal scan earns its keep. We would rather make one extra visit than have you live with a smell.

Danielle OkoroResponse Director · Crew Lead
A Douglas fir limb came through the roof over the living room. They tarped it that night in the rain, cleared the debris, and dried the ceiling before the rebuild. Zero water damage on top of the tree damage.
Storm and flood damage
Reply from the technician on the job
Thank you. Correcting the entry point is the half of the job that keeps it from repeating next November. If anything starts to feel damp again, call the office and we will read it for nothing.

Hector VillanuevaSenior Water Technician
Their truck had the phone number on the side and the tech who answered the phone was the same tech who showed up. That kind of continuity is why I trust them.
Attic & Crawl Space Mold Removal
Reply from the technician on the job
Glad it went the way it should. That is the standard we hold ourselves to every visit. We would rather make one extra visit than have you live with a smell.

Sierra BeaumontContents & Pack-Out Lead
What I appreciated was the honesty. They said one section of drywall was not worth saving and did not try to sell me a full wall replacement when a patch would pass inspection.
Mold remediation
Reply from the technician on the job
Thanks for asking the hard questions about what was safe. It made the scope better. Call any hour if something changes — someone always answers.

Kevin IshidaMold Remediation Specialist
Second time we have used them, first was a burst pipe, then a mold job at our rental. Same standard both times, which tells you it is the company and not one good crew.
Attic & Crawl Space Mold Removal
Reply from the technician on the job
Thank you — passing this on to the two techs who were on site. Call any hour if something changes — someone always answers.

Semisi TuilagiProject Manager · Reconstruction
Their report was written so my landlord could not argue. Moisture readings, photos, clear language, dates. The deposit question ended the day they sent it.
Mold remediation
Reply from the technician on the job
Thank you. Removing less material than another quote is only right when the readings support it. If a neighbour ends up with the same problem, we are only a few minutes away.

Kevin IshidaMold Remediation Specialist
I have asthma and was nervous about the dust. The crew taped the doorway, ran the scrubber, and cleaned the hallway when they left. No symptoms the entire week.
Mold remediation
Reply from the technician on the job
Glad the clearance came back first time. That is the whole point of doing containment properly. If anything starts to feel damp again, call the office and we will read it for nothing.

Kevin IshidaMold Remediation Specialist
Half my closet wall was wet behind a dresser I had not moved in years. They caught it, treated it, and told me exactly which wall to keep an eye on from now on.
Mold remediation
Reply from the technician on the job
Thank you. Growth is always a moisture problem first, so we treat the source before the surface. Call any hour if something changes — someone always answers.

Kevin IshidaMold Remediation Specialist
Their office called twice a day during drying to tell us what was happening next. Nobody in this industry does that in my experience.
Attic & Crawl Space Mold Removal
Reply from the technician on the job
Appreciate the review. Calls at that hour are why we staff dispatch around the clock. Happy to come back and check the work, no charge.

Hector VillanuevaSenior Water Technician
Showing 12 of 28 reviews for this area
Musty air in an upstairs bedroom often originates directly above it.
Frost or droplets on the underside of a deck mean humid air is trapped in the attic.
A duct that ends at the insulation line dumps a litre of water vapour per shower into the roof space.
Wet insulation stops insulating, which makes the condensation worse.
Soft floor joists from crawlspace humidity are a structural warning, not just a cosmetic one.
Attic deck, rafters, top plates, joists and sill plates photographed and metered.
Bath and dryer ducts traced to their termination and corrected where they end indoors.
Wet or contaminated insulation is removed and replaced rather than dried in place.
Crawlspace vapor barrier coverage and drainage assessed, because bare soil is the usual engine.
Attic sheathing treatment, small area
$1,800 – $4,500
Includes HEPA vacuuming, treatment and vent correction.
Attic with insulation replacement
$3,500 – $8,500
Removal, new insulation and ventilation work.
Crawlspace growth removal
$2,500 – $7,000
Joist cleaning plus sealed vapor barrier installation.
Full encapsulation with drainage
$6,000 – $15,000
Long-term fix where ground water is involved.
Ranges are what these jobs actually invoice at in King, Snohomish, Pierce and Skagit counties. On a covered claim the carrier pays the scope and you pay your deductible.
Inspection and photos
Day 1
Containment at access
Day 1
Removal and treatment
Days 1 – 3
Ventilation and barrier work
Days 3 – 6
Drying is measured, not guessed. We do not remove equipment until the readings match a dry reference material in an unaffected room — even when that means an extra day.
An exhaust fan rated for 110 cubic feet per minute will move roughly a bathtub of water vapour out of a bathroom every week. Terminated outdoors, that is fine. Terminated in an attic, it condenses on the coldest surface available, which is the roof sheathing, and the sheathing grows. Every winter after that adds a layer.
The fix is a short, insulated, correctly sloped duct to a proper roof or wall cap, ideally straight out rather than up. It is a two-hour job that prevents a five-figure remediation, and it is the first thing we check when we see growth on the underside of a roof deck.

In an open crawlspace, bare soil evaporates into the floor structure year round. Cleaning the joists without covering the soil means the growth returns with the next wet season. A sealed, mechanically fastened vapor barrier over the entire floor, lapped up the foundation walls, is the difference between a repair and a repeat.
Where groundwater is actively entering, the barrier is only half the answer. Grading, footing drains and downspout extensions have to move the water away first, or it will find the low side of the barrier and pool.

Extraction, structural drying and moisture verification that stops a leak before it becomes mold.
DetailsTruck-mounted extraction for burst pipes, failed supply lines and appliance floods — 24 hours a day.
DetailsContainment, HEPA filtration and source correction — we remove the moisture, not just the stain.
DetailsWhy Attic & Crawl Space Mold Removal calls us first
30 min
Typical arrival for attic & crawl space mold removal
4.9★
Average rating, 1,284 reviews
99.9%
Claims we write, approved
12k+
Puget Sound homes restored
Every attic & crawl space mold removal call reaches a live Puget Sound dispatcher. If we are past 30 minutes, the emergency response is free.
425 390 591124/7/365 · live dispatcher
31 cities · 193 neighborhoods · 30 minutes or less on site
Our crews run attic & crawl space mold removal out of a stocked Bellevue yard, with response times between 18 and 30 minutes across the metro and under 45 minutes at the edges of Skagit County.
If your question is not here, call and ask it. A live dispatcher answers, not a form.
Yes. A visual inspection from a hatch tells you almost nothing about joist moisture, duct routing or barrier coverage. We photograph everything so you can see what we saw.
Where it has been saturated or colonised, yes. Damp insulation cannot be effectively cleaned and it stops performing thermally, which worsens the condensation cycle.
Typically $2,000 to $7,000 depending on area, access and whether drainage correction is needed. It is the single most effective mold prevention step in a Northwest home.
Coverage depends on cause. Growth from a sudden roof or plumbing failure is often covered; growth from long-term ventilation deficiency is usually treated as maintenance.

It does not matter what time it is
One phone call reaches a live Puget Sound dispatcher, any hour of any day of the year. We log the loss, stage the crew, and stay on the line while you shut the water off. Thirty minutes later somebody is at your door with equipment.