There are three ways to test for lead paint: DIY swab kits, paint chip lab samples, and professional XRF inspections. Swab kits are cheapest but miss buried layers. XRF is the most accurate and is required by NYC law. In New York City, buildings built before 1960 must be tested by a certified inspector under Local Laws 1 and 31.
If you live in an older NYC apartment and are worried about lead—especially with young children in the home—this guide walks through each testing method, what city law requires of your landlord, and what to do if lead paint turns up.
Why Lead Paint Testing Matters
New York City banned lead paint for residential use in 1960, ahead of the federal ban in 1978. Even so, millions of older apartments still have it. Intact paint in good condition poses a lower immediate risk. The danger rises when paint chips, peels, or gets disturbed during renovation—releasing lead dust that children can inhale or swallow.
Children under six face the highest risk. Lead harms the developing brain and nervous system, and young children frequently put hands and objects in their mouths. The CDC says there is no safe blood lead level in children. The current CDC reference value is 3.5 micrograms per deciliter (µg/dL)—children with blood lead levels at or above this threshold require follow-up action.
NYC has made real progress: according to the NYC Department of Health and Mental Hygiene's 2024 annual report to the City Council, the number of children under 6 with blood lead levels at or above 3.5 µg/dL dropped 93% between 2005 and 2023. But older housing, particularly in neighborhoods with pre-war buildings, still puts families at risk.
What's in this video?
An attorney from The Orlow Firm explains how New York City residents can find out whether their apartment contains lead-based paint, including what landlords must disclose and what tenants can do if they suspect exposure.
How to Test for Lead Paint: 3 Methods Compared
Method 1: DIY Swab Test Kits
DIY lead paint test kits are the cheapest and fastest first step. Most work by rubbing a chemically treated swab on a painted surface. If lead is present, the swab turns pink or red.
The EPA recognizes three kits for use under its Renovation, Repair, and Painting (RRP) Rule:
- LeadCheck™
- D-Lead®
- The State of Massachusetts lead test kit
These kits are designed to detect lead at or above 1.0 mg/cm² on the painted surface. You'll find them at hardware stores for roughly $10–$30.
What to know before you buy:
- Swab kits only test the outermost paint layer. In older homes, lead may be buried under many newer coats.
- A negative result does not rule out lead in deeper layers.
- False negatives happen if you don't reach the base layer or skip steps in the instructions.
- A positive result confirms lead is present but doesn't tell you how much or whether the surface is actively hazardous.
Use a DIY lead paint test kit as a quick screen before deciding whether to call a professional. If it comes back positive, get a certified inspector involved—don't stop at the swab.
Method 2: Paint Chip Laboratory Analysis
Paint chip analysis is more accurate than a swab kit and produces results that hold up in legal or compliance proceedings.
A certified lead inspector cuts through all paint layers to collect a chip sample, then sends it to a lab accredited under the EPA's National Lead Laboratory Accreditation Program (NLLAP). Labs analyze samples using established methods to measure lead content with high accuracy.
Turnaround: 3–7 business days Trade-off: The process leaves a small gouge in the wall that needs to be patched
This method works well when you need documented, lab-confirmed results—for HPD compliance filings, housing court, or before starting a renovation.
Method 3: Professional XRF Inspection (The Gold Standard)
XRF (X-Ray Fluorescence) testing is what New York City law requires for official lead paint inspections under Local Law 31. A certified inspector uses a handheld XRF device that reads lead content through every layer of paint at once—without damaging the surface.
Why XRF stands out:
- Tests all paint layers at once, not just the top coat
- Results come back on-site, immediately
- High accuracy with proper calibration
- No wall damage
- Required by NYC Local Law 31 for pre-1960 buildings
NYC's stricter standard: Under Local Law 66 of 2019 (effective December 1, 2021), NYC defines lead-based paint as 0.5 mg/cm² — stricter than the federal threshold of 1.0 mg/cm². Paint that passes federal standards can still be considered lead-based paint under city law.
Cost: Typically a few hundred dollars for a residential inspection (varies by inspector and unit size).
Only EPA-certified lead inspectors or risk assessors can perform XRF inspections. The EPA and NYC HPD both maintain searchable databases of certified professionals.
What's in this video?
An attorney at The Orlow Firm walks through NYC's procedures for testing children for lead paint poisoning—including what parents should know about blood lead tests and what happens after an elevated result.
NYC Tenant Rights: What the Law Requires
New York City has strong lead paint laws. Under Local Law 1 of 2004, landlords of covered multiple dwellings must:
- Inspect every unit and common area for lead-based paint
- Use certified inspectors with XRF equipment
- Give tenants a copy of inspection results
- Keep records for at least 10 years
- If a child under 6 lives in the unit, check for peeling paint and conditions that could disturb lead
Which buildings are covered:
- All buildings built before 1960 — paint is presumed lead-based until testing proves otherwise
- Buildings built between 1960–1978 where lead paint is known or suspected
Under Local Law 31, pre-1960 buildings were required to complete XRF testing of all units and common areas by August 9, 2025.
If your landlord hasn't tested: Call 311 or contact the NYC Department of Housing Preservation and Development (HPD). Landlords who skip required testing face civil penalties and HPD enforcement.
What to Do If Lead Paint Is Found in Your Apartment
1. Don't disturb the paint. Don't sand, scrape, or dry-sweep it. That releases fine dust particles that are far more dangerous than intact paint. Keep children away from any peeling or chipping areas.
2. Contact your landlord in writing. Landlords must fix lead hazards using approved lead-safe work practices. Put your request in writing and keep a copy.
3. Call 311. If your landlord doesn't respond, file an HPD complaint through 311. HPD can order repairs and inspect the unit.
4. Get your children tested. New York State law requires health care providers to test children for lead at ages 1 and 2. If your child is older but may have been exposed, ask your pediatrician for a blood lead test. A result at or above 3.5 µg/dL requires follow-up, and your doctor may involve the NYC Department of Health and Mental Hygiene (DOHMH).
5. Document everything. Keep copies of inspection reports, photos of peeling paint, and all communications with your landlord. If the situation escalates, this record matters.
Frequently Asked Questions About Lead Paint Testing
How can I tell if my paint is lead-based without a test kit?
You can't confirm lead paint by looking at it. The age of the building is the best clue—pre-1960 NYC buildings are legally presumed to contain lead-based paint under Local Law 1. Chalking, alligatoring (a scaly, cracked surface), or chipping paint in older buildings are warning signs. Only testing can confirm it.
Are home lead paint test kits accurate?
EPA-recognized kits (LeadCheck™, D-Lead®) are reliable for positive results but can miss lead in buried paint layers. A positive swab result should always prompt a professional inspection. A negative result is not a guarantee the surface is lead-free.
How much does a professional lead paint inspection cost?
Professional XRF inspections vary in price depending on the inspector and size of the unit. If your landlord is legally required to test under Local Law 31, the cost is theirs—not yours.
What do I do if I find lead paint in my apartment?
Don't remove it yourself. Keep children away from damaged areas. Contact your landlord in writing and report to HPD via 311 if there's no response. Get blood lead tests for any children in the home and document conditions with photos.
Does my NYC landlord have to test for lead paint?
Yes. If you live in a multiple dwelling built before 1960—or a 1960–1978 building with known lead paint—your landlord must have the unit inspected by a certified professional using XRF testing under Local Laws 1 and 31. Not doing so is a violation of NYC law.
Sources & Official Resources
Federal Sources
- EPA — How to Tell If Your Home Contains Lead-Based Paint
- EPA — Lead Test Kits (Recognized Kits List)
- EPA — Lead Abatement, Inspection and Risk Assessment
- CDC — Blood Lead Reference Value Update (3.5 µg/dL)
New York City Sources 5. NYC HPD — Lead-Based Paint (Local Law 1 and Local Law 31) 6. NYC HPD — Local Law 66 of 2019: Lead-Based Paint Threshold FAQ 7. NYC HPD — Local Law 31 XRF Testing Requirement FAQ 8. NYC DOH — 2024 Annual Report to City Council on Childhood Lead Poisoning Prevention
New York State Sources 9. NY State DOH — Childhood Lead Poisoning Prevention 10. NY State DOH — What Your Child's Blood Lead Test Means 11. NY State DOH — Information for Health Care Providers on Lead Poisoning
Contact The Orlow Firm
If your child has been exposed to lead paint because a landlord failed to test or fix a known hazard, the legal responsibility may lie with the building owner. The Orlow Firm has handled lead poisoning cases in New York for over 40 years, recovering millions for families in these situations.
Call us at (646) 647-3398 for a free consultation. We handle lead poisoning cases on contingency—no fee unless we win. Se Habla Español.
Learn more about how a Queens lead poisoning lawyer can help your family.
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