Free visual inspection and a written scope of work before any mitigation begins - photos, moisture readings, and drying logs go in your claim file
The scope we write is the scope we bill. Anything new gets shown to you, in writing, before we touch it.
Fast, Reliable Mold Remediation Across Chelsea
If you’ve found mold in your Chelsea apartment, the two questions that matter most are how fast someone can get there and what it’ll cost before tools come out. For most Chelsea homes, mold remediation runs $1,400 – $4,200 depending on how far the colony has moved into wall cavities, and our crews typically arrive within 90 minutes of your call. We know Chelsea buildings well: the pre-war walk-ups off Eighth and Ninth Avenue, the high-rise towers near the High Line, and everything between West 14th and West 34th. Call (940) 466-4354 and a live person answers, 24 hours a day.
Why Wendell Water Damage Restoration Is Chelsea’s Preferred Mold Remediation Company
We’ve worked in enough Chelsea co-ops and rentals to know the building stock here doesn’t behave like the suburbs. Co-op boards move slowly, steam risers fail without warning, and hidden wall cavities stay wet long after the surface looks dry. Chelsea customers call us because we put a price in writing before any work starts, not after we’ve opened the wall. That written scope goes to you as a text before a single tool is unloaded.
Our reputation in Chelsea comes from doing the boring part correctly: moisture mapping the full cavity, setting containment before anything moves, and sending before-and-after photos by text while the job is running. You’ll see the Dri-Eaz and Phoenix equipment working, see the readings, and know exactly when the space hits dry standard. Every repair carries our 365-Day Done Right Promise in writing, plus a free second visit if the repair fails within that year.
Blake Sorensen leads the team with a simple rule: if we wouldn’t leave it in our own apartment, it doesn’t pass. That standard applies whether we’re treating a single wall cavity in a West 23rd Street walk-up or coordinating with a condo board off the West Side Highway.
Mold Remediation Services in Chelsea
Mold Remediation Services in Chelsea start with finding where the moisture is actually coming from, because treating visible growth without fixing the water source means the colony returns in weeks. That’s the part most Chelsea jobs hinge on. A typical full remediation in Chelsea runs $1,800 – $4,200, which includes containment, removal of affected material, antimicrobial treatment, and structural drying. Smaller isolated jobs can run under $1,200 when caught early.
Pre-War Steam Riser Work
In Chelsea’s older walk-ups, the mold you see on plaster is usually the smoke, not the fire. The real colony sits in the cavity behind the wall where a steam riser or radiator return leaked. We open those walls, dry the cavity, treat the framing, and leave the surface looking clean, not just painted over.

High-Rise Containment
For newer Chelsea towers along Eleventh Avenue and near Hudson Yards, mold often shows up after balcony or slab waterproofing fails. Water wicks upward into the drywall field, reads dry at the painted surface, and stays saturated underneath. Our moisture meters find that hidden field before we quote a scope, so you’re not paying for guesswork.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Professional Mold Removal in Chelsea
Professional Mold Removal in Chelsea means full removal, not covering it up. We follow IICRC, RIA, and IFA standards on every job: containment barriers go up first so spores don’t travel through your apartment while we work. HEPA air scrubbers run throughout. Affected drywall, insulation, and baseboard come out in sealed bags and leave through the service entrance, not your living room.
The equipment we bring into Chelsea walk-ups is the same professional-grade gear used on large commercial loss sites: Dri-Eaz dehumidifiers and XPOWER air movers sized to the cubic footage of the affected rooms. Your written scope lists the equipment, the drying target, and the number we need to hit before we call the job done.
Crawl Space and Basement Work
Some Chelsea buildings still have partial basements and crawl spaces under the older sections. Those spaces feed humidity into the units above. We treat the crawl space itself, then install or recommend moisture control measures so the problem doesn’t walk back up the walls next season.
Black Mold Remediation
When testing shows Stachybotrys, the black mold people worry about, the process is the same containment and removal, but we’re stricter about negative air pressure and post-remediation verification. You’ll get photo documentation and a written scope before anything starts, and the same documentation goes to your insurer if you file a claim.
Trusted Brands We Service in Chelsea
We bring Dri-Eaz and Phoenix equipment into every Chelsea job because those brands hold up under the tight spaces and old plumbing this neighborhood throws at them. Our van carries XPOWER air movers sized for the small rooms and long hallways of Chelsea walk-ups, and we coordinate equipment staging with building supers so hallways stay passable. If your building requires documentation of equipment specs or insurance certificates before work begins, we send those over while the crew is still en route.
Common Mold Remediation Problems We See in Chelsea Homes
- Steam riser leaks that feed wall cavities. A radiator pipe in the wall drips for months before anyone sees staining. By the time you notice, the cavity has been humid for weeks and the colony is established behind the plaster.
- Balcony and slab waterproofing failures in new towers. Newer buildings settle, membranes crack, and water from a small balcony leak wicks up into the drywall field. It looks dry at the surface, so residents wait, and the problem spreads inside the wall.
- Moving air before containment is up. If you point a fan at visible mold, you spread spores through the apartment. We see it often: a well-meaning neighbor or super “dries” the spot for a day first, and now the contamination zone is two rooms instead of one.
- Waiting on board approval before starting. The 24-to-48 hour mold clock starts when the leak stops, not when the board signs off. We can start containment and drying immediately while the co-op or condo paperwork catches up, so the scope stays small.
Pricing for Mold Remediation in Chelsea, NY
For Chelsea apartments, here’s what you’re looking at. Mold inspection and testing runs $250 – $550. Mold removal for a single wall cavity typically lands between $1,200 and $2,000. Full mold remediation of an entire room or apartment runs $2,000 – $4,200. Crawl space treatment in older Chelsea buildings runs $1,500 – $3,500 depending on square footage and access.
What changes your price: whether the cavity behind the wall is wet, how much drywall has to come out, whether a co-op or condo requires licensed environmental testing before clearance, and whether your building insists on a specific disposal route for contaminated material. We put the number in writing before any work starts, and the digital invoice you pay from a link matches that number exactly.
We Also Serve Cities Near Chelsea
Our dispatch covers Chelsea and the surrounding Hudson Valley corridor, including Beacon, Newburgh, Wappingers Falls, and New Windsor. For a deeper look at how mold behaves in this specific building stock, see our Mold Remediation overview or read more about Mold Remediation in Chelsea.
Serving Chelsea, NY - Our Local Coverage Area
We’re based in the Chelsea area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Mold Remediation in Chelsea
Within 24 to 48 hours of the leak stopping, because mold colonies establish in that window on wet drywall and framing. Call (940) 466-4354 as soon as you know water has been sitting, even if you can’t see visible mold yet. We can often start containment and drying the same day, before your co-op board has even scheduled a walkthrough.
Newer Chelsea towers settle, and that settling cracks balcony membranes and slab waterproofing. Water enters at the slab edge, travels horizontally through the drywall field, and pools at the bottom plate while the visible surface looks dry. Our moisture meters read the field, not just the face, so we find the real wet line and treat the right area the first time. Call us for a written scope before anyone opens the wall.
Yes. We determine the water category during the initial assessment, before any drying plan is written. Category 1 is clean supply water, category 2 is grey water with some contamination, and category 3 is sewage or floodwater. The category determines whether materials can be dried in place or must be cut out. Your written scope reflects that determination and the reasoning behind it.
Yes. We work directly with Chelsea co-op and condo boards, property managers, and supers on a weekly basis. That means certificate of insurance, equipment spec sheets, access scheduling, and clearance documentation go to the right people while we’re working. You shouldn’t be the one chasing down paperwork while a wall is open. We handle it and keep you on the text thread with photos as it progresses.
We bring Dri-Eaz dehumidifiers, Phoenix and XPOWER air movers, HEPA air scrubbers, and Injectidry mats sized for the room and the building’s access constraints. In Chelsea walk-ups, that means equipment we can carry up narrow stairwells without marking walls, and enough power capacity to run on older circuits without tripping breakers. Your written scope lists exactly which machines go in and why.
Have a mold problem in Chelsea right now? Call (940) 466-4354 and you’ll get a live person, a written price before any work starts, and a crew that shows up with live arrival time tracking. Estimates are free.
Written by Blake Sorensen, Owner at Wendell Water Damage Restoration, serving Chelsea since 2006.






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