Water damage drying
Fire & smoke cleanup
Mold remediation
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 New Hyde Park
Mold remediation in New Hyde Park typically runs $1,800 to $6,500 depending on how far moisture has traveled through your basement or walls, and most jobs can be scoped within one business day of your call. The homes here, many built between the 1920s and 1950s with plaster walls and finished basements, hold moisture differently than newer construction, which means a proper fix requires more than spraying visible spots. We know this because we work these blocks every week, from the streets west of New Hyde Park Road to the neighborhoods near Denton Avenue. If you need someone who understands exactly how your house behaves after a nor’easter or a sump pump failure, call (607) 600-9946. Our Mold Remediation team will walk you through what we found, what it will take, and what it will cost before anyone picks up a tool.

Why Tidemark Water Damage Queens Is New Hyde Park’s Preferred Mold Remediation Company
We are independently owned and operated, working to the Cedarwell Care Promise, and we answer our own phones, all day, every day. When a homeowner in New Hyde Park calls at 9 p.m. because a basement wall is weeping, a real person picks up. Not a voicemail. Not a callback queue.
Our technicians are IICRC, RIA, and IFA credentialed, background-checked, and they arrive in uniform with shoe covers and drop cloths already on the truck. Before we touch anything, you get a written price. Not a rough guess, not a range that inflates later. A number you agree to first. Then we explain what we found, what needs to be protected, and how we will leave the house. And because mold work in New Hyde Park often means children and pets are still in the home while we work, we use pet-safe products where there is a choice and keep drying equipment on lower-decibel settings during nap hours. We also take a photo of the clean-up before we leave, so you can see exactly what was done and how it was left.
Rick Sumner, who leads our team, set one standard that has not changed: if it is not done right, we make it right. That is the 365-Day Done Right Promise, and it covers every mold job we do in New Hyde Park, from small closet treatments to full basement remediation. You can reach Rick’s team at (607) 600-9946 for a straight answer about what you are dealing with.
Restoration work we handle






Mold Inspection in New Hyde Park
Mold Inspection in New Hyde Park starts with moisture mapping, not just a visual once-over of the walls. Homes here, especially those west of New Hyde Park Road, sit on a high water table that keeps sump pumps running continuously after heavy rain, so the first question we ask is not “where is the mold” but “where is the water still coming from.” A proper inspection includes humidity readings, thermal imaging behind plaster walls, and a check of cove joints and slab edges where moisture wicks up from below.
What We Check Behind the Walls
Plaster walls from the 1920s and 1930s hide moisture well. They can look dry on the surface while holding elevated readings behind the lath. We map the moisture pattern before any testing begins, because that tells us whether the source is a failed sump pump, a cracked cast-iron drain line under the slab, or condensation from a cold foundation wall.
When Testing Makes Sense
If the smell is stronger in winter but there is no visible leak, or if a room still smells musty weeks after a flood, air sampling can confirm spore levels and identify what type of mold is present. A basic inspection and moisture survey in New Hyde Park typically runs $250 to $450. If the mold is visible and the water source is obvious, we will often tell you a full lab test is not necessary, which saves you money.
Mold Removal Specialist in New Hyde Park
Mold Removal Specialist work in New Hyde Park nearly always involves containment, removal of wet building materials, and structural drying at the slab level. We set containment barriers before we disturb anything, because mold spores move fast through forced-air heating systems common in these 1920s to 1950s oil-fired homes, and the last thing you want is for a basement problem to spread into the bedrooms above.
Containment and Removal
When we remove moldy drywall from a finished basement on a block near Lowell Avenue or anywhere in New Hyde Park, we seal off the work area and run negative air pressure so spores do not get pulled into the rest of the house. Then we remove the damaged material, bag it, and treat the remaining framing. Afterward, we dry to pre-loss moisture readings, not just “feels dry to the touch.”
Drying Below the Slab
This is the step that separates a permanent fix from a repeat job. If the moisture came up through the slab from the high water table, cleaning the walls alone will not stop mold from returning in a few weeks. We use Dri-Eaz air movers and Injectidry floor drying mats to pull moisture out of slab edges and base plates, then we check those readings daily until they return to normal.

Trusted Brands We Service in New Hyde Park
We run professional-grade equipment from Dri-Eaz and Injectidry, the same machines used by leading restoration specialists. We also carry the brands our technicians trust on site: Dri-Eaz dehumidifiers and air movers for drying, Injectidry systems for floor and cavity drying, and XPOWER and B-Air units for containment and air scrubbing. Because we stock parts and replacement filters locally, we do not have to wait on a distributor to keep a drying job moving in New Hyde Park. When a dehumidifier needs a new filter mid-job, we swap it same day and keep the schedule.
Common Mold Remediation Problems We See in New Hyde Park Homes
- Hidden moisture under older vinyl tile. Contractors sometimes skip moisture mapping of the slab and cove joints, so water trapped under old flooring re-blooms mold within weeks. We lift and test, even when it adds a step.
- Spores spreading through forced-air heat. Older colonials and Capes often share one heating system between basement and living space. Remediation without containment pushes spores through every vent, recontaminating rooms that were already dry.
- Cracked cast-iron drain lines under slabs. Visible mold on plaster walls can be a symptom of a deeper problem. If the drain line under the basement floor has cracked, you will get repeated sewer backups and recurring mold no matter how many times the walls are cleaned.
- Sump pumps running nonstop after rain. Homes west of New Hyde Park Road sit above a high water table, and after a heavy storm, many sump pumps never shut off. If the discharge is too close to the foundation or the pit is undersized, that water makes its way back inside.
See the difference
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AfterPricing for Mold Remediation in New Hyde Park, NY
Most small, contained mold jobs in New Hyde Park, like a closet or a single wall section, run $1,800 to $3,500 including containment, removal, and drying. A finished basement with mold behind finished walls and moisture at the slab typically lands between $4,000 and $6,500, depending on square footage and how much drywall needs to come out. Full crawl space treatments with moisture and humidity control usually run $3,000 to $7,000. The factors that move the number are square footage, whether the water source is still active, and whether cast-iron drain repair is part of the scope. Every quote is written and agreed to before work starts. Call (607) 600-9946 and we will give you an exact number for your house.
We Also Serve Cities Near New Hyde Park
Our crews respond locally across the surrounding area, including Elmont, Williston Park, West Hempstead, and Albertson. If you are in one of those neighborhoods and have a suspected mold problem, our New Hyde Park team can be out quickly, sometimes the same day you call.
Serving New Hyde Park, NY - Our Local Coverage Area
We’re based in the New Hyde Park 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 New Hyde Park
The water table under that side of New Hyde Park sits high, so after heavy rain, ground water presses against foundations and wicks up through the slab as invisible moisture. The basement may never flood, but the base plates, cove joints, and lower wall cavities stay damp for weeks, which is exactly where mold grows. The fix is moisture mapping and drying below the surface, not just wiping down the walls. Call (607) 600-9946 and we will map your basement before we recommend anything.
It depends on how long the water sat and what the moisture readings show, but in most cases, water that has wicked up drywall from a failed sump pump means at least the lower two feet of drywall should come out. Drywall acts like a sponge, and even after the surface dries, the paper backing holds mold. We explain what we found, show you the readings, and give you a written scope before any removal begins.
Most mold remediation work that involves removing and replacing drywall, treating framing, and drying the structure does not require a local building permit in New Hyde Park. Structural changes, like cutting out and replacing rotted joists or re-routing plumbing, may need a permit, and we will tell you before we start. We never let paperwork questions delay a drying job.
That pattern usually points to condensation, not a leak. In older New Hyde Park colonials with uninsulated rim joists and cold foundation walls, warm indoor air hits cold surfaces, condenses, and soaks into the framing. The smell gets stronger in winter because the house is closed up and the heating system pulls that damp, moldy air through the vents. The fix is usually a combination of air sealing, insulation at the rim joist, and drying out affected cavities.
Yes, but the sequence matters more than the products. A sewer backup from a cracked cast-iron line under a New Hyde Park slab means the drain repair has to happen before or alongside the remediation, or the problem repeats. Our Mold Removal Specialist team coordinates the full scope: drain evaluation, containment, removal of contaminated materials, structural drying, and final verification. You get one written price for the whole job before anything starts. Call (607) 600-9946 for an exact quote.
Contact Tidemark Water Damage Queens for Mold Remediation in New Hyde Park
If you are seeing mold, smelling it, or just found water where it should not be, call (607) 600-9946. We will send a crew to your New Hyde Park home, map the moisture, explain what is happening in plain language, and hand you a written price before any work begins. Shoe covers go on at the door. Drop cloths cover the floor. And when we leave, you get a photo of the clean-up so you see exactly what was done and how it was left. Rick Sumner and our Mold Remediation team are ready when you are.
Written by Rick Sumner, Owner at Tidemark Water Damage Queens, serving New Hyde Park, NY.