Mold remediation
Water damage drying
Fire & smoke cleanup
Storm response
Sewage cleanup
ReconstructionFree 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.
Get your free estimateFast, Reliable Mold Remediation Across Larchmont
Mold remediation in Larchmont typically costs between $1,800 and $6,500 depending on how far the growth has spread and whether original plaster and millwork need preservation work. Most jobs in the village take two to five days from containment setup to final clearance testing. We serve the entire 10538 zip code, from the shoreline streets near Manor Park up through the Palmer Avenue corridor, and our dispatch team can usually have a crew at your door within 90 minutes of your call to (631) 646-2175. When you’re dealing with mold behind a 1920s plaster wall off Larchmont Avenue, you don’t want someone who learned the trade on modern drywall jobs. You want a team that knows what’s behind those walls before they open them up.
Why Wendell Restoration Yonkers Is Larchmont’s Preferred Mold Remediation Company
Larchmont homeowners call us because we show up with a written price before any tool comes off the truck. That’s not a marketing line. It’s the way we’ve operated since 2006, and it’s written into every job as part of The Relay Visibility Guarantee. You’ll get a live arrival time you can track, a technician in uniform with a background check on file, and before-and-after photos texted to your phone so you can see exactly what we did behind the containment barrier.
Blake Sorensen, who leads our restoration teams, has walked more pre-1930 basements in Larchmont than most contractors see in a career. He knows what a stone foundation on Vanderburgh Avenue does after a nor’easter, and he knows which plaster walls can be saved and which ones have to go. Our crews work under IICRC and RIA standards, using Dri-Eaz drying equipment that’s the same gear you’d see on a commercial loss site in Manhattan. The difference is, we’re pulling up to your Tudor on Elm Avenue, not a high-rise.
Every Larchmont job includes the 365-Day Done Right Promise in writing. If the mold comes back or the repair fails within a year, we come back and make it right. And if that second visit doesn’t hold, you get a free second visit. No fine print. No phone tag. Just a live person answering when you call.
We also know Larchmont from the inside: the building department on Larchmont Avenue, the parking realities on Chatsworth Avenue during school pickup, and which blocks have the oldest stone foundations. That local knowledge means our scope of work reflects what your house actually needs, not a generic template. For more on how we approach this work across the region, see our Mold Remediation hub page. If you’re exploring what Larchmont homes specifically require, that page gets into the details.
Restoration work we handle
Black Mold Removal in Larchmont
Black mold removal in Larchmont often means working inside a home built before 1930, where the mold has colonized original plaster and lath behind a finished basement wall or inside a wall cavity after a radiator leak. The work starts with containment: plastic sheeting, negative air pressure, and sealing off the affected area so spores don’t travel through the rest of the house. Then we remove the colonized materials, treat the framing with an antimicrobial, and dry the structure to the moisture levels spelled out in the IICRC S520 standard. In a Larchmont colonial on a street like Birch Lane, black mold removal typically runs $2,500 to $5,800 when the affected area is a single basement wall or ceiling cavity.
What We Actually Remove
We remove drywall, plaster, insulation, and any porous material that’s holding mold. Non-porous surfaces like framing lumber and concrete get scrubbed, treated, and dried. In a pre-1930 Larchmont home, the removal step requires more care: we cut along clean lines, preserve original millwork where possible, and photograph everything before, during, and after.
Post-Removal Clearance
After treatment, we run air scrubbers and take air and surface samples. You get the results in writing before we break down containment. That’s the point where you know the space is actually clean, not just visually clean.
Mold Removal Contractor in Larchmont
A mold removal contractor in Larchmont has to be part remediator, part preservationist. The village’s housing stock dates largely from the 1890s through the 1930s, which means original plaster and lath, old-growth timber framing, and finished basements built over stone foundations with questionable drainage. Hiring a contractor who treats your 1924 colonial like a 2005 builder-grade house is how original details get destroyed. We don’t do that. Mold removal contractor work in Larchmont generally falls between $1,800 for a small, contained bathroom or closet job and $6,500 for a full finished basement remediation with material-matched pack-out and structural drying.
Containment and Protection
On every job, we set up containment before demolition starts. That’s plastic barriers, negative air machines, and floor protection from your front door to the work area. In a home on Monroe Avenue with original hardwood floors, that protection is the difference between a contained job and a house full of dust.
Material Matching and Pack-Out
When we remove a plaster wall that can’t be saved, we pack out the salvageable pieces, document the wall profile, and help coordinate with a local plaster contractor who can match the original texture. It’s an extra step most remediation companies skip. In Larchmont, skipping it means losing a wall your house has had for a century.
Trusted Brands We Service in Larchmont
We work on all the furnace, boiler, and water heater brands Larchmont homes actually have, from older Burnham and Weil-McLain boilers that feed cast-iron radiators to newer Navien and Rinnai units. When a Weil-McLain boiler leaks into a finished basement off York Avenue, the mold problem starts in the wall cavity, not the concrete floor, and we know to look there first. We maintain local parts relationships in Westchester so that if a failed water heater is the moisture source feeding your mold issue, we can help coordinate the correction before remediation starts. A mold job is only as good as the fix to the water problem that caused it.
See the difference
Before
After
Before
After
Before
AfterCommon Mold Remediation Problems We See in Larchmont Homes
- Nor’easter-driven basement flooding: Larchmont’s coastal position along the Long Island Sound means heavy rain events push groundwater up through stone foundations into basements. Within 24 to 48 hours, mold can colonize the original plaster and lath, and by then the wall often has to be opened, not just dried.
- Hidden mold behind finished basement walls: Many Larchmont basements are finished over stone foundations that were never properly waterproofed on the exterior. Moisture readings spike after rain, but there’s no visible staining until the growth is widespread behind the drywall or paneling.
- Cast-iron radiator failures: Original radiators burst or leak during freeze-thaw cycles, sending water into wall cavities and under original hardwood floors. We see this most often in the older colonials along the Boston Post Road corridor after a cold snap.
- Aggressive remediation destroying period finishes: We regularly correct jobs where a previous contractor used harsh chemical treatments or tear-everything-out demolition on a pre-1930 home. The mold is gone, but so is the original millwork. Larchmont homes demand material-matched pack-out and careful structural drying instead.
Pricing for Mold Remediation in Larchmont, NY
Here’s what you can expect to pay in Larchmont, based on the kind of work involved. A small contained job, like a single bathroom wall or closet cavity, runs $1,800 to $3,200. A typical finished basement with mold behind one or two walls runs $3,500 to $5,800. A full basement remediation with plaster preservation, structural drying, and clearance testing runs $5,000 to $6,500. What moves the number is square footage, how much original plaster and millwork must be preserved or matched, and whether the moisture source, like a leaking boiler or foundation seepage, needs correction alongside the mold work. We put the price in writing before any work starts, and we text you a digital invoice you can pay from a link. The number on the screen is the number you pay. Call (631) 646-2175 for a free estimate and we’ll walk the space with you.
We Also Serve Cities Near Larchmont
Our crews work throughout the Sound Shore, including Mamaroneck, New Rochelle, Mount Vernon, and Yonkers. The housing stock changes from village to village, but the standards don’t: written pricing, live arrival times, and before-and-after photos on every job.
Serving Larchmont, NY - Our Local Coverage Area
We’re based in the Larchmont 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 Larchmont
In a pre-1930 Larchmont home, mold remediation often means preserving original plaster and lath, old-growth timber, and period millwork rather than simply tearing out and replacing. The job demands material-matched pack-out, careful structural drying, and coordination with specialists who can match original plaster textures. In a newer home, you cut out drywall and replace it. In Larchmont, the wall itself has historic value, and the remediation process has to account for that. Call (631) 646-2175 and we’ll give you an honest read on what can be saved in your specific house.
It depends on how deep the mold has penetrated. Plaster walls that are moldy on the surface can often be cleaned, treated, and dried, but if the mold has colonized the lath or the cavity behind the plaster, that section of wall usually has to come out. The good news is that we pack out the salvageable material and document the wall profile so a period-appropriate match can be made. We’ll tell you before we open anything up what you’re likely to lose and what we can save. Call (631) 646-2175 for an exact assessment.
Mold can begin colonizing wet plaster, drywall, and wood within 24 to 48 hours, especially in a Larchmont basement where coastal humidity keeps moisture levels high. Once it colonizes original plaster and lath, the remediation required becomes destructive and expensive. The faster you get containment and drying started, the more of your original basement you keep. Our dispatch team coordinates crews from the New York City office, and we can typically get someone to a Larchmont basement within 90 minutes of your call to (631) 646-2175.
For most mold remediation work contained to a basement or wall cavity, the Village of Larchmont does not require a building permit, but if the remediation exposes structural issues or requires significant framing replacement, a permit may be triggered. We handle the scope documentation and can advise you on what the building department on Larchmont Avenue will want to see. We don’t hide behind paperwork. We’ll tell you what’s needed and who needs to file it. Call (631) 646-2175 if you’re not sure what your job requires.
Yes, and it’s one of the most common problems we find in Larchmont basements. Stone foundations breathe, and when groundwater pressure rises after heavy rain or a nor’easter, moisture seeps through the stone and gets trapped behind finished walls. The mold grows in the dark, damp cavity, and by the time you see staining on the wall surface, the growth is often widespread. A moisture meter survey is the cheapest insurance you can buy. Call (631) 646-2175 and we’ll check the moisture readings in your basement before you have a visible problem.
Written by Blake Sorensen, Lead Restoration Technician at Wendell Restoration Yonkers, serving Larchmont and the Sound Shore since 2006.