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 Union Square
Mold remediation in Union Square homes typically costs $1,850 – $4,200 for a contained bathroom or kitchen job, and $4,500 – $9,800 when original plaster-and-lath walls require opening, drying, and rebuild. Most Union Square co-ops and condos we service get a full written scope within 24 hours of the first call, with containment started same-day for active spread. If you’re seeing black spots on walls, smelling mustiness near a riser, or dealing with a recent pipe or radiator leak, call (940) 466-4354. We answer live, tell you exactly what we’d do, and put the price in writing before a single tool comes out.
Why Wendell Water Damage Restoration Is Union Square’s Preferred Mold Remediation Company
Union Square’s housing stock is unlike most of Manhattan: cast-iron loft buildings, pre-war co-ops on East 14th and University Place, and converted commercial floors above ground-level restaurants. That mix creates mold problems most companies aren’t set up for. Our Mold Remediation team works in these buildings weekly, so we know what a failing riser behind original plaster actually looks like and how far spores travel through a pre-war cavity before you ever see a spot. We don’t guess. We open, map moisture, contain, dry, and document.
Blake Sorensen, who leads our Union Square crews, has walked hundreds of pre-war kitchens and bathrooms in this neighborhood. That experience is why we catch what surface-only companies miss: wet lath behind “dry-looking” plaster, hidden category 2 water from a slow riser leak, and shared drain lines between a commercial kitchen below and a residential bathroom above. We also arrive with Dri-Eaz and Phoenix drying equipment, IICRC-standard containment, and a live arrival time you can track on your phone. No four-hour windows. No voicemail queues.
Union Square homeowners also get our 365-Day Done Right Promise in writing on every job. If the mold comes back in the treated area within a year, we return and make it right at no charge. That’s not a marketing line. It’s in the contract we hand you before work starts.
Mold Removal Contractor in Union Square
A mold removal contractor in Union Square does more than wipe visible growth and spray a biocide. In pre-war buildings, the actual job is finding the moisture source behind the finish, confirming the extent with moisture mapping, and deciding whether the plaster stays or comes out. That’s the difference between a $600 surface treatment and a $3,000 – $9,800 cavity-and-drying job. We don’t upsell. We show you readings, photos, and a written scope before you approve anything.
Containment and Demolition
In tight Union Square co-op kitchens and bathrooms, we set up negative air containment before any demolition. That keeps spores from moving into adjacent living space through pre-war wall cavities and air gaps around pipes. If the plaster tests wet behind the finish, we open a controlled section rather than tearing the whole room.
Drying and Verification
We track moisture levels daily until the cavity reads dry on all structural materials. That verification step is what separates remediation from a cosmetic cleanup. You get the readings, not just a promise.
Bathroom Mold Removal in Union Square
Bathroom mold removal in Union Square usually runs $1,850 – $4,200 when the growth is contained to tile, grout, and a single wall cavity. But in pre-war co-ops where the bathroom shares a wet wall with a commercial space below or a riser closet, we often find the mold source is not ventilation. It’s a slow leak inside the wall. That changes the job from a cleaning to a contained cavity-and-drying job, and the scope reflects that honestly.
Recurring Bathroom Mold
If you’ve cleaned mold in a Union Square bathroom and it returned within weeks, the moisture source is still active. Most often it’s a riser or supply line inside the wall, or failed caulk at the tub flange letting water run behind the tile. We find it with moisture mapping, then fix the wet condition and the mold together.
Post-Remediation Rebuild
Once the cavity is dry and treated, we rebuild to match the original finishes where possible. In Union Square co-ops, that often means matching plaster skim coats and period tile profiles. We’re not a demolition crew that walks away. We leave the wall closed and the bathroom usable.
Trusted Brands We Service in Union Square
Our Union Square jobs run on equipment and products from brands tradespeople in this city actually trust: Dri-Eaz, Phoenix, and XPOWER. Dri-Eaz LGR dehumidifiers and Phoenix axial air movers handle the tight, low-clearance cavities common in pre-war bathrooms. XPOWER negative air machines hold containment in occupied co-ops where residents are still living in adjacent rooms. Because we stock parts and filters for these units locally, we don’t lose a day waiting on supply when a machine fails mid-job. That matters when you’re paying for hotel nights in Union Square or trying to keep a family in the unit during remediation.
Common Mold Remediation Problems We See in Union Square Homes
- Surface treatment without cavity inspection. The visible mold on original plaster is often the tail end of a colony growing on wet lath behind the wall. Skipping the cavity inspection leaves active growth in place, and the stain returns in weeks.
- Ignoring shared riser paths. In stacked Union Square buildings, a commercial kitchen below and a residential bathroom above can share the same drain riser. What looks like a “restaurant leak” downstairs is often the same water path wetting your wall cavity a floor up.
- No containment in small pre-war rooms. Tight kitchens and baths without proper air scrubbers push spores into hallways and adjacent units during demolition, which extends the job and often triggers neighbor complaints.
- Drying only the surface, not the lath. Plaster dries slowly and hides moisture behind a dense finish. We see jobs where a homeowner was told the wall was dry after three days, but our meter still read 22% moisture in the lath. That’s a mold recurrence waiting to happen.
Pricing for Mold Remediation in Union Square, NY
Here’s what Union Square homeowners can expect, based on what we’ve scoped in the neighborhood over the past several years:
- Bathroom mold removal (single wall, contained job): $1,850 – $4,200
- Kitchen riser leak with cavity opening and drying: $2,800 – $6,500
- Pre-war plaster wall remediation with rebuild: $4,500 – $9,800
- Crawl space or mechanical room treatment: $2,200 – $5,400
- Air quality testing add-on: $450 – $850 per area
Cost moves with three things: how much plaster must be opened, how long the cavity takes to dry, and whether containment must stay up while residents remain in the unit. Every quote is written, line-itemed, and sent as a text link before work starts. The number on your screen is the number you pay. Call (940) 466-4354 for a free Union Square estimate.
We Also Serve Cities Near Union Square
Beyond Union Square, our crews handle mold remediation throughout Union Square and the surrounding boroughs. If you’re in Brooklyn, Queens, Manhattan, or The Bronx, the same written-price process and 365-Day Done Right Promise apply. Dispatch and scheduling run from our New York City office, so response times are measured in hours, not days.
Serving Union Square, NY - Our Local Coverage Area
We’re based in the Union Square 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 Union Square
Mold can begin colonizing wet lath and plaster within 24 – 48 hours in a heated Union Square co-op, especially during fall and winter when radiators keep interior humidity elevated. If a riser or radiator line leaks, call us the same day. Early extraction and drying usually keep the job to a contained event instead of a full wall rebuild. Call (940) 466-4354 and we’ll talk you through the next 48 hours.
Because opening and rebuilding original plaster-and-lath costs more than cutting drywall, and because containment must be airtight in occupied co-ops where neighbors live inches away through shared walls. We’re not marking up for the zip code. We’re scoping for the materials and access conditions actually present in these buildings. A free estimate gives you a written number to compare.
Yes. When a Union Square bathroom sits above or beside a ground-floor kitchen or retail space, we inspect the shared riser path first. Commercial-adjacent leaks often travel upward through the same chase and wet the residential cavity from behind. Treating only the bathroom side misses the source. Our scope includes mapping the full path, not just the visible stain.
We provide same-day assessment and containment in Union Square for active mold and water-driven jobs. Full remediation that requires plaster opening, drying, and rebuild is scheduled after the written scope is approved. But you’ll never wait days for someone to show up. A live person answers (940) 466-4354 and gets a crew to your building promptly.
A Union Square scope includes moisture mapping of the affected wall or floor, containment setup, controlled demolition of wet plaster or drywall, removal and bagging of mold-affected material, antimicrobial treatment of the cavity, structural drying with daily readings, and a final clearance inspection with photos. You receive the scope in writing before any work begins, along with before-and-after photos by text.
Your Next Step in Union Square
If you suspect mold in your Union Square home, do not wait for the stain to spread or the smell to move into the next room. Call (940) 466-4354 now. You’ll reach a live person who can schedule a same-day assessment, walk you through what we’re likely to find in your building type, and send a written estimate before any work starts. Blake Sorensen and our Union Square crews know these buildings. We’ll treat your home like it’s our own, and we’ll put that promise in writing.
Written by Blake Sorensen, Owner at Wendell Water Damage Restoration, serving Union Square and the surrounding New York City area since 2006.






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