MoldGuard Remediation
Cedarhurst mold remediation

Mold Remediation in Cedarhurst for damp crawl spaces and older homes

Mold Remediation in Cedarhurst means finding the moisture first, then removing the mold for good. Our team works the wooded blocks around Cedarhurst Park and the older homes near Seahurst Park, where crawl space moisture and attic condensation are common. We test with a moisture meter and thermal imaging camera, contain the work area, and treat with Fiberlock and Concrobium before we rebuild. You get a dry, verified space, not a cover-up.

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600+
Cedarhurst jobs completed
fall rain and crawl space moisture
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Cedarhurst overview

Mold Remediation in Cedarhurst, done by a local crew

Why we serve here

Cedarhurst keeps us busy for real reasons. The neighborhood is wooded and coastal, which means shade on the north side of homes, moss on roofs, and gutters that clog every October. Crawl space moisture is the number one call we get here, followed by attic condensation in homes with poor soffit ventilation. The housing stock is older, so we regularly find insulation that has been wet for years and drywall that looks fine until you cut into it. We serve Cedarhurst because the work is honest and the problems are predictable once you know the area. Homeowners here want a straight answer and a crew that shows up when they say they will.

Serving Cedarhurst North, Cedarhurst South and Shorewood with same-week scheduling

Mold Remediation in Cedarhurst is a moisture problem before it is a mold problem, and that is how we treat it. Cedarhurst sits in King County between the wooded ridges above Seahurst Park and the older residential blocks along Shorewood, where homes built in the 1950s and 1960s still have original crawl spaces, minimal vapor barriers, and single-pane windows that sweat all winter. We work these streets weekly. Our technicians carry moisture meters, thermal imaging cameras, and boroscopes to check inside wall cavities before we quote anything, because the mold you can see on a bathroom ceiling is rarely the whole story. If you search for Cedarhurst mold remediation WA, you will find plenty of companies that spray and leave. We test, contain, remove, dry, and verify. That is the difference between a job that holds and a job you repeat next spring.

Services available

Mold remediation services we run in Cedarhurst

Cedarhurst mold removal company work covers more than spraying a wall. In this neighborhood we handle crawl space mold remediation Cedarhurst WA homeowners call about every fall, plus attic mold, bathroom mold, and the water damage that starts it all. Whether you need a same-day mold removal Cedarhurst WA visit after a burst pipe or a planned crawl space encapsulation, we bring the equipment and the containment to do it right the first time.

Mold Inspection & Testing

We inspect Cedarhurst homes with moisture meters, thermal imaging cameras, and boroscopes to find hidden mold behind drywall and under flooring. Air and surface samples go to a third-party lab. You get a written report showing what type of mold is present, where it is, and how much moisture is feeding it. Most Cedarhurst inspections take 60 to 90 minutes.

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Mold Remediation

Full remediation in Cedarhurst means containment, negative air machines, HEPA vacuuming, and removal of affected materials. We treat framing with Fiberlock or Concrobium antimicrobial, then dry the space with Dri-Eaz dehumidifiers and air scrubbers. Every job ends with clearance testing so you know the mold is gone before we rebuild.

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Black Mold Removal

Black mold in Cedarhurst usually shows up on drywall behind bathroom tile, on crawl space joists, or under kitchen sinks. We identify it with lab testing rather than guessing by color, contain the area with plastic and negative air, remove porous materials that cannot be saved, and treat the rest with RMR-86 and antimicrobial spray.

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How we work locally

How mold remediation gets done in Cedarhurst

Challenge: Crawl space hatches hidden in closets or under decks

Access slows the start of the job, and tight hatches limit the size of equipment we can move in. In some Cedarhurst homes we run hose lines 40 to 60 feet from the truck to reach the far end of the crawl space.

Solution: We scope access during the inspection and bring compact dehumidifiers and scrubbers sized for the opening. If a hatch needs to be enlarged, we tell you before the work starts and handle the framing repair as part of the job.

Challenge: Original 1950s and 1960s construction with no vapor barrier

Bare soil under these Cedarhurst homes releases moisture year-round, which keeps relative humidity high and lets mold regrow after cleaning. Insulation in these crawl spaces is often wet and has to be removed.

Solution: We remove contaminated insulation, treat the joists and subfloor, and install a reinforced vapor barrier sealed at seams and piers. Where humidity stays high, we add a crawl space dehumidifier and set it to hold the space under 50 percent.

Neighborhoods we serve

Cedarhurst NorthCedarhurst SouthSeahurstShorewoodGregory HeightsThree Tree Point

Service area

Cedarhurst

Latitude: 47.4884

Extract Directions

Case files

Recent project: 1

Cedarhurst North

Challenge

A Cedarhurst North homeowner called about a musty smell in the hallway and mold on the baseboard near the bathroom wall. The bathroom had been remodeled a few years earlier, and the fan was venting into the attic instead of outside.

Execution

We inspected with a moisture meter and thermal imaging camera and found elevated moisture in the wall cavity behind the bathroom. We contained the area, removed the moldy drywall and baseboard, treated the framing with antimicrobial, and dried the cavity with air movers and a dehumidifier. We also rerouted the bath fan to vent outside through the roof.

Impact

The wall cavity dried to normal readings in three days. Clearance testing passed, and we rebuilt the drywall and baseboard. The homeowner has had no musty odor since, including through the following winter.

Recent project: 2

Shorewood

Challenge

A Shorewood homeowner had standing water in the crawl space after a week of fall rain. The home had no vapor barrier, wet insulation hanging from the joists, and visible mold growth on the subfloor near the foundation vents.

Execution

We pumped out the standing water, removed 12 bags of contaminated insulation, HEPA vacuumed the joists and subfloor, and treated the framing with Fiberlock antimicrobial. We sealed the foundation vents, installed a reinforced vapor barrier across the floor and up the walls, and added a crawl space dehumidifier set to hold humidity under 50 percent.

Impact

Moisture readings dropped from 28 percent to 12 percent in the joists over five days. The homeowner added the space to our annual maintenance plan, and the follow-up check six months later showed no new growth.

Intricate close-up of a handmade clay sculpture showcasing detailed textures and craftsmanship.
Our track record
Our track record

Field evidence from Cedarhurst remediation work

What Cedarhurst jobs look like

Over the past few years we have completed more than 600 mold remediation jobs in Cedarhurst and the surrounding Burien neighborhoods. Crawl space work makes up the largest share, followed by attic mold and bathroom mold. On a typical Cedarhurst crawl space job we remove 8 to 14 bags of contaminated insulation, treat 600 to 1,200 square feet of framing, and install a new vapor barrier across the full floor. We verify every job with moisture readings and, when the scope calls for it, third-party clearance testing. The pattern is consistent: fix the water source, dry the space, and the mold stays gone. That is why homeowners here call us back for maintenance checks instead of repeat remediation.

600+
Cedarhurst jobs completed

Local questions

How much does mold remediation cost in Cedarhurst WA?

Most Cedarhurst mold remediation jobs run between $1,200 and $8,000 in 2026, with the average crawl space project landing around $3,500 to $6,500. Small bathroom or attic jobs are usually at the lower end. The biggest cost drivers are square footage, how much insulation or drywall has to be removed, and whether the moisture source needs repair. We give you a written scope and price before any work starts.

Who is the best mold remediation company in Cedarhurst?

The right company for your Cedarhurst home is the one that tests before quoting, fixes the moisture source, and does clearance testing when the job is done. Look for IICRC certification, general liability and workers comp insurance, and a crew that has worked in this neighborhood before. Ask for local references and check that the quote covers containment, removal, drying, and verification, not just spraying.

How fast can you get to Cedarhurst WA for mold removal?

We typically reach Cedarhurst addresses within 60 to 90 minutes of your call, and we answer emergency water and mold calls 24/7. For scheduled inspections, we offer morning and afternoon windows Monday through Saturday. If you have standing water or a sewage backup, call us directly instead of using the form so we can get a crew moving right away.

Licensed and insured

Licensed, insured, and compliant in Cedarhurst

Mold remediation in Cedarhurst involves containment, demolition, and chemical treatments, so the credentials matter. We carry general liability and workers compensation coverage, and we follow IICRC S520 remediation standards on every job. Our technicians are trained in OSHA-compliant work practices and Washington State Department of Labor & Industries safety rules. When we handle sewage backups or toxic mold, we use full PPE and negative air containment. We also work with third-party inspectors for clearance testing, so the results are independent and documented for your records.

Washington State general contractor registration
Washington State Department of Labor & Industries contractor coverage
IICRC Water Damage Restoration Technician (WRT) Institute of Inspection, Cleaning and Restoration Certification

Areas we cover

Downtown Burien Boulevard Park Seahurst Gregory Heights Downtown Burien Boulevard Park Seahurst Gregory Heights
When To Call

Signs you need mold remediation in Cedarhurst

Mold in Cedarhurst does not always announce itself with a visible patch on the wall. More often it starts as a smell, a stain, or a spot that keeps coming back after you clean it. If you have had water damage, a slow leak, or a crawl space that stays damp, it is worth getting checked. Here are the signs we see most often when homeowners call us for mold remediation in Cedarhurst WA near me.

1. Musty smell that will not go away

A persistent musty odor in a Cedarhurst home usually means active mold growth somewhere you cannot see, often in the crawl space or inside a wall cavity. Air fresheners and candles will not fix it. The longer it runs, the more material gets contaminated, so it is worth an inspection.

2. Dark spots on walls, ceilings, or baseboards

Dark staining near a bathroom, under a window, or along a baseboard often points to a slow leak or condensation problem. In Cedarhurst's older homes, this frequently traces back to a failed window seal, a roof leak, or a bath fan that is not moving enough air.

3. Warped or soft flooring near a fixture

Soft spots around a toilet, tub, or kitchen sink mean water has been getting under the floor for a while. By the time the floor feels spongy, mold is usually growing on the subfloor and into the framing below, which turns a small repair into a larger remediation.

4. Condensation on windows or pipes all winter

Cedarhurst homes with single-pane windows and uninsulated pipes often show heavy condensation from November through March. That moisture feeds mold on window frames, sills, and nearby drywall. A humidity check and better ventilation usually solve the root cause.

5. You have had water damage in the last year

Any burst pipe, roof leak, or sewage backup in a Cedarhurst home should be followed by a moisture check, even if everything looks dry. Mold can start within 24 to 48 hours in a wet cavity, and it often shows up weeks later as a smell or a stain in a different room.

Local Problem Patterns

Common mold problems we see in Cedarhurst

Cedarhurst has a specific set of conditions that drive mold problems: coastal humidity, heavy tree cover, older housing stock, and clay-heavy soil that drains slowly after rain. Those factors combine to make crawl space moisture and attic condensation the two most common calls we get. If you are looking for the best mold remediation Cedarhurst WA has to offer, start by understanding what is actually causing the problem in this neighborhood.

Crawl space mold from bare soil and no vapor barrier

Why it happens here

Many Cedarhurst homes were built without a vapor barrier, so soil moisture rises into the crawl space year-round. Combined with our coastal humidity, relative humidity under these homes often stays above 70 percent, which is well above the level mold needs to grow.

Our approach

We remove contaminated insulation, treat the framing, and install a sealed vapor barrier across the floor and up the walls. Where humidity stays high, we add a crawl space dehumidifier and set it to hold the space under 50 percent, then verify with follow-up readings.

Attic mold from bath fans venting into the attic

Why it happens here

Older Cedarhurst homes often have bath fans that dump moist air straight into the attic instead of outside. In a cool attic, that moisture condenses on roof sheathing and framing, and mold shows up on the underside of the roof within a season or two.

Our approach

We remove moldy insulation and sheathing, treat the framing, and reroute the fan to vent outside through the roof or wall. We also check soffit and ridge ventilation so the attic can dry properly after the repair.

Basement mold after foundation leaks and sump failures

Why it happens here

Cedarhurst basements take on water through foundation cracks, failed sump pumps, and poor grading. Clay-heavy soil holds water against the foundation after heavy rain, and once water gets in, mold can start on drywall, framing, and stored belongings within 48 hours.

Our approach

We extract the water, remove moldy materials, treat the concrete and framing, and dry the space with Phoenix Restoration equipment. We also repair the crack or sump issue so the basement stays dry, because remediation without fixing the source is a temporary fix.

Bathroom and kitchen mold behind tile and cabinets

Why it happens here

Slow leaks under sinks, failing caulk lines, and undersized bath fans are common in Cedarhurst's older kitchens and bathrooms. Water gets behind tile and cabinets, mold grows out of sight, and homeowners usually notice it only when the smell or a soft spot appears.

Our approach

We open the wall or cabinet base, HEPA vacuum the cavity, treat the framing with antimicrobial, and dry it before rebuilding. We also fix the fan or leak that caused it, then rebuild with mold-resistant drywall and fresh caulk lines.

Local Pricing

What mold remediation costs in Cedarhurst

Typical 2026 pricing for mold remediation in Cedarhurst runs from about $1,200 for a small bathroom or attic area to $8,000 or more for a full crawl space with insulation removal, vapor barrier, and dehumidifier. Most Cedarhurst crawl space jobs land between $3,500 and $6,500 depending on square footage and how much insulation has to come out. We give you a written scope and price before work starts, and we tell you upfront if we think part of the job is not needed. If you are comparing quotes for affordable mold remediation Cedarhurst Washington, make sure each one covers containment, removal, drying, and clearance testing, because the cheap quotes usually skip at least one of those.

Availability in Cedarhurst: We schedule Cedarhurst inspections Monday through Saturday, with morning and afternoon arrival windows. Emergency mold response is available 24/7, and we typically reach Cedarhurst addresses within 60 to 90 minutes of your call. If you need same-day mold removal Cedarhurst WA service after a burst pipe or sewage backup, call us directly rather than using the form so we can get a crew moving.

1

Square footage affected

A 40-square-foot bathroom is a very different job than a 1,000-square-foot crawl space. In Cedarhurst, most crawl spaces run 600 to 1,200 square feet, and that range alone can swing the price by several thousand dollars once insulation removal and vapor barrier are included.

2

Type of mold and materials

Surface mold on concrete or framing cleans up faster than mold that has soaked into drywall, insulation, or subfloor. Black mold and toxic mold work in Cedarhurst requires stricter containment and more material removal, which adds labor and disposal cost.

3

Moisture source repairs

If the source is a simple gutter overflow, the fix is quick. If it is a foundation crack, failed sump pump, or bath fan venting into the attic, that repair adds to the job. We quote it separately so you can see exactly what you are paying for.

Year-Round Coverage

How Cedarhurst seasons affect mold risk

Cedarhurst mold problems follow the weather. Fall rain and winter condensation drive most of our calls, but spring and summer have their own patterns. Knowing what to expect each season helps you stay ahead of it, and it helps you decide when to schedule a moisture check or a crawl space encapsulation Cedarhurst WA project.

Spring

Spring in Cedarhurst brings lingering damp from winter, plus pollen and debris that clog gutters and downspouts. Crawl spaces that stayed wet all winter start to smell musty, and attic mold that grew over the cold months becomes visible as temperatures rise.

Tip

Clean gutters and check your crawl space for standing water or damp insulation. If you had any leaks over the winter, schedule a moisture check before summer.

Summer

Summer is the driest stretch in Cedarhurst, which makes it the best time for crawl space encapsulation, attic work, and any remediation that requires opening walls. Humidity still runs high near the water, so crawl spaces do not fully dry out on their own.

Tip

Book crawl space and attic projects now while the weather is dry. If you run a dehumidifier, check that it is still holding humidity under 50 percent.

Fall

Fall is when Cedarhurst mold calls spike. Heavy rain saturates the clay soil, gutters fill with leaves, and water starts finding its way into crawl spaces and basements. Musty odors that were mild in summer become obvious by November.

Tip

Clean gutters before the worst of the rain, extend downspouts away from the foundation, and test your sump pump. If your crawl space smells musty, get it checked before winter.

Winter

Winter in Cedarhurst means condensation on single-pane windows, cold crawl spaces, and warm moist air from the house meeting cold surfaces. Attic condensation and window frame mold are common, and frozen pipes can burst and flood a room while you are away.

Tip

Keep indoor humidity around 40 to 50 percent, run bath fans longer, and insulate exposed pipes. If a pipe freezes, call us before it thaws and releases water into the walls.

Hiring Smart

What to ask before hiring a Cedarhurst mold company

Not every company that advertises mold removal in Cedarhurst does the full job. Some spray and leave, some skip clearance testing, and some do not carry the insurance or certifications to handle a real remediation. These are the questions we would ask if we were hiring someone for our own home, and the answers tell you a lot about who you are dealing with.

  1. 1

    "Will you test to confirm it is actually mold before you quote?"

    Why it matters

    A company that quotes without testing is guessing. Lab testing tells you what type of mold is present, whether it is toxigenic, and how far it has spread. It also gives you documentation for insurance and for any future real estate transaction.

  2. 2

    "Do you do clearance testing when the job is done?"

    Why it matters

    Clearance testing is how you know the remediation worked. A company that skips it is asking you to take their word for it. We use third-party testing on Cedarhurst jobs so the result is independent, not self-reported.

  3. 3

    "Are you licensed, insured, and certified for mold work in Washington?"

    Why it matters

    Mold remediation involves containment, demolition, and chemical treatments. You want a contractor with general liability and workers comp coverage, plus IICRC certification, so you are not exposed if something goes wrong on your property.

  4. 4

    "Will you fix the moisture source, or just remove the mold?"

    Why it matters

    Mold comes back if the water source is still there. Ask whether the quote includes fixing the leak, rerouting the bath fan, repairing the foundation crack, or whatever is feeding the problem. If it does not, you are paying for a repeat job.

  5. 5

    "How will you protect my home during the work?"

    Why it matters

    Containment, negative air machines, and HEPA vacuuming keep mold spores from spreading to the rest of your house. Ask how they seal the work area, how they handle debris, and how they clean up at the end of each day before you sign anything.

Knowing the Area

Landmarks we use to navigate Cedarhurst

When we schedule a Cedarhurst job, we orient by landmarks rather than just addresses. Cedarhurst Park is a common meeting point for inspections on the north side, and Seahurst Park helps us place the wooded streets closer to the water. Shorewood Park sits near several of our repeat maintenance accounts. Knowing these landmarks keeps our arrival windows tight, especially when a homeowner is meeting us on a lunch break.

Landmarks

  • Cedarhurst Park

    Cedarhurst Park is a useful reference point for jobs on the north side of the neighborhood. Many of our crawl space and attic inspections are within a few blocks, so we can often stack two appointments in the same morning.

  • Seahurst Park

    Seahurst Park anchors the coastal, wooded part of our service area. Homes near the park deal with more shade and humidity, so we plan extra drying time on remediation jobs in this pocket of Cedarhurst.

  • Shorewood Park

    Shorewood Park sits near several Cedarhurst properties we service regularly. It is a handy landmark for scheduling maintenance visits, since we can group them with nearby gutter cleaning and moisture checks.

Commercial Districts

  • Olde Burien business district

    Olde Burien has restaurants, small offices, and retail spaces that deal with roof leaks and plumbing failures. We handle commercial mold and water damage calls here, often after hours so the business can stay open during the day.

  • Five Corners commercial area

    Five Corners has a mix of service businesses and small retail. Mold calls here usually trace back to HVAC condensation or a slow plumbing leak, and we schedule the work around business hours to avoid disrupting customers.

Transport & Access

  • Ambaum Boulevard SW

    Ambaum is our main north-south route through the Burien area. It keeps our drive times to Cedarhurst predictable, even during the morning commute.

  • SR 509

    SR 509 gives us fast access to the west side of our service area. When a Cedarhurst emergency call comes in, this is usually the quickest route to your driveway.

Nearby cities we serve from Cedarhurst

Cedarhurst sits inside a tight service region we cover every week. Because we are based in Burien, we can reach most of these neighborhoods in 10 to 25 minutes, which matters when water is still spreading. If you are just outside Cedarhurst, chances are we already work your street.

Downtown Burien

About 10 minutes east of Cedarhurst. Many of our Cedarhurst customers first found us through a job we did in Downtown Burien.

Boulevard Park

Roughly 10 to 15 minutes northeast. We handle crawl space and basement mold work here on the same schedule as Cedarhurst.

Seahurst

Adjacent to Cedarhurst on the west side. Coastal humidity and wooded lots make crawl space moisture a common call in both areas.

Gregory Heights

About 15 minutes south. Larger lots and detached garages mean we often handle both house and outbuilding moisture problems.

Highline

About 15 minutes east. Older housing stock and rental properties generate steady mold remediation demand here.

Shorewood

Immediately south of Cedarhurst. We are often in Shorewood the same day we are in Cedarhurst.
Service Area

Mold Remediation Coverage Across Cedarhurst & King County

Routine and same-week appointments for residents and businesses across King County, including the ZIP codes below.

9814698148981689816698062
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Get mold remediation in Cedarhurst before it spreads

If you have seen mold, smelled something musty, or had water damage in your Cedarhurst home, the sooner you act the smaller the job gets. We test first, show you what we find, and give you a written price before we start. Our crew knows Cedarhurst crawl spaces, attics, and older homes, and we back our work with clearance testing. Call us at 1112222333 or send a message, and we will get you on the schedule, often the same week.

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