Table of Contents
- Homes built before 1978 may contain lead-based paint; assume it is present until a certified test says otherwise.
- The biggest renovation risk is invisible lead dust from sanding, scraping, demolition and window or door work.
- Paid contractors in pre-1978 homes must be EPA-certified and use lead-safe work practices.
- Old plumbing, solder and service lines can also add lead to drinking water; test before you change pipes.
- Children and pregnant people should leave the home during dusty work and not return until cleanup is verified.
Most renovations in older New York homes start with the same instinct: open it up and see what is there. With lead, that instinct can cause harm. Lead is a neurotoxin, most dangerous to young children and during pregnancy, and the main route of exposure in a renovation is not chips you can see. It is fine dust created when old paint is sanded, scraped, cut, or knocked loose.
This guide covers paint and plumbing, the two places lead hides in older housing. It explains how to test, what the rules say, which practices work, and when to hand the job to a certified professional. For the exterior side of the issue, we have a separate guide on exterior lead paint safety for old New York homes.
1. Why Old Homes Carry Lead
Lead was added to house paint for decades because it made color durable and surfaces hard. The federal ban on lead-based paint for housing took effect in 1978, so a home built before that date can contain it, and the older the building, the more likely. Pre-war apartments, brownstones, and wood-frame houses commonly have layers of lead paint buried under newer coats, often on windows, doors, trim, radiators and stair parts.
Lead was also used in plumbing: pipes, solder, and some fittings and fixtures. Soft lead service lines and lead-containing solder were common in older construction.
Painted-over lead is not an emergency by itself. Intact, well-maintained paint is a lower risk. The problem arrives when renovation disturbs it. Friction surfaces such as window sashes and door edges generate dust every time they move, and demolition creates a great deal at once.
The EPA's lead information page is a good general reference on sources and health effects.
2. How Lead Harms People
Children under six absorb lead more readily and are still developing, so exposure can affect learning, behavior and growth. Pregnant people can pass lead to a developing baby. Adults can also be affected, with links to blood pressure and kidney effects at higher exposures.
There is no safe level identified for children. That is why renovation planning in older homes should assume the most protective approach.
If you think someone has been exposed, speak with a pediatrician or physician about a blood lead test. Do not rely on symptoms, because many cases show none.
3. Testing Before You Touch Anything
Never guess. Testing converts fear into a plan.
Paint testing options
- EPA-recognized test kits. Swab-style kits give a quick positive or negative on a spot. They are useful for screening, but results depend on kit quality and technique, and they may miss lead under multiple coats if the layers are not cut through.
- Lab analysis. A paint chip sample sent to an accredited lab gives a clear number.
- XRF inspection. A certified lead inspector uses a handheld X-ray fluorescence analyzer to read through layers without damaging surfaces. This is the most thorough way to map a whole home.
Water testing
Water from the tap can pick up lead from service lines, solder or fixtures. A certified lab test is the only way to know your own water's level. Sample guidance varies, so ask the lab for instructions and test before you start plumbing work, and again after.
What to test
Focus on the surfaces your plan will disturb: window frames, doors, trim, walls to be sanded or demolished, and the exact pipes you will cut. A bathroom renovation, for instance, involves tile, plaster and plumbing in one small room.
4. The Rules: What Applies and to Whom
The central federal rule is the EPA Renovation, Repair and Painting (RRP) program. As of October 2026, it requires anyone paid to disturb paint in pre-1978 homes, child care facilities and preschools to be EPA-certified or state-authorized and to use lead-safe work practices. The EPA's RRP page lists requirements and how to find certified firms.
New York City adds its own rules for older multiple dwellings, especially buildings from before 1960, enforced through the Department of Housing Preservation and Development and the Department of Health. The HPD site explains owner responsibilities for lead hazards. Rules differ for one- and two-family homes, rentals and co-op or condo units, so ask the building and check with the agency.
Outside the city, requirements depend on state and municipality. In New Jersey, local construction offices issue permits under the Uniform Construction Code, and home improvement contractors must register with the Division of Consumer Affairs. On Long Island, contractors must be licensed through county consumer affairs and permits come from the town, village or city building department.
N.Y. Renovation Services works to these rules on every older-home project. This is general information, not legal advice. When in doubt, ask the agency or your contractor.
5. Safe Practices for the Work Itself
If lead is present or presumed, whoever does the work should follow lead-safe practices. These are the core principles, and they apply to anyone, paid or not.
- Keep people out. Children, pregnant people and pets leave the area, and ideally the home, during dusty work.
- Contain the area. Close doors, seal vents, cover floors and furniture with heavy plastic, and use a decontamination zone at the exit.
- Use wet methods. Mist surfaces before scraping or cutting. Wet scraping and wet sanding keep dust down.
- Avoid prohibited methods. Open-flame burning, heat guns above the EPA limit, and power sanding or blasting without a HEPA shroud and vacuum are not allowed under the rule.
- Wear the right gear. Disposable coveralls, shoe covers, gloves and a properly fitted respirator with HEPA filters. A paper dust mask does not protect against lead dust.
- Clean as you go. HEPA vacuum and wet wipe. Dry sweeping and ordinary household vacuums spread fine dust.
- Bag and dispose carefully. Debris goes into sealed heavy bags. Ask your municipality or contractor how to dispose of it.
6. Paint Options: Repair, Encapsulate, Enclose, or Remove
Not every lead-paint situation needs removal. Pick the strategy that fits the condition and your plans.
| Approach | What it means | Best for | Trade-offs |
|---|---|---|---|
| Repair and repaint | Stabilize chips, prime, repaint | Intact walls and trim | Lowest cost, lead stays beneath |
| Encapsulation | Special coating that seals paint | Stable surfaces, low friction | Needs prep, may not suit friction surfaces |
| Enclosure | Cover with drywall or panels | Walls and ceilings | Adds thickness, hides but does not remove |
| Replacement | Remove and replace components | Windows, doors, trim | Higher cost, removes the hazard |
| Full removal | Strip paint under containment | Badly deteriorated areas | Highest cost and disruption |
Our guide to how to paint over lead paint safely in NYC explains stabilizing and repainting step by step, and the EPA page linked above covers the contractor side. If demolition is on your plan, read lead paint and demolition rules in NYC first.
7. Lead in Plumbing: What to Check and What to Do
Older NYC buildings and suburban homes may still have lead service lines, lead solder joints or older brass fixtures. Renovation matters here because cutting, replacing or disturbing pipes can shake loose particles and temporarily raise lead levels in water.
Identify
Look at the pipe where water enters the building. Lead pipe is dull gray, soft, and leaves a shiny streak when scratched with a coin. A magnet will not stick to it. Do not rely on this alone: confirm with a licensed plumber.
Test
Get a certified lab test of your tap water before and after plumbing changes.
Reduce risk in the meantime
- Run cold water for a bit when it has been sitting.
- Use only cold water for drinking and cooking.
- Consider a filter certified to remove lead, and follow its replacement schedule.
Replace
Replacing a lead service line or lead pipes is a job for a licensed plumber. Plumbing in New York City must be done by licensed professionals, and many plumbing changes require filings. In a co-op or condo, the building usually controls risers and shared lines. During a bathroom or kitchen renovation, it is often the ideal time to update pipes inside your own walls, since they are already open.
8. Cleanup, Verification and Re-entry
Cleanup is where many do-it-yourself jobs fail. After lead-disturbing work:
- HEPA vacuum all surfaces, including ceilings, walls, window wells and floors.
- Wet wipe with disposable cloths, then HEPA vacuum again.
- Remove plastic carefully, folding dusty sides inward.
- Bag cleaning materials and protective clothing.
- Verify. In some projects a visual check is enough; in others a professional dust-wipe test, or clearance, gives numbers you can rely on.
Do not let children back into the area until cleanup is verified. Wash hands and faces after any exposure, wash work clothes separately, and keep a no-shoes rule near the work area.
9. Why Hire a Certified Pro Instead of Going DIY
Lead work looks like ordinary renovation until something goes wrong. The costs of a mistake are lopsided: a few hours saved, against dust that can linger in carpets, vents and window wells for months.
A professional crew brings what a weekend project rarely has: EPA-certified personnel, HEPA vacuums and negative-air setups, correct containment, disposal knowledge and the discipline to stop and test before cutting. They also know when lead is not the only hazard. In a pre-1987 building, an asbestos survey may be needed before demolition, and in older bathrooms tile mastic and plaster can hide more than one problem.
At N.Y. Renovation Services, our in-house design-and-build team plans the sequence so the dusty work happens once, under containment, before finishes go in. We coordinate permits and co-op or condo paperwork, bring in licensed trades for plumbing, and show testing, containment and cleanup as itemized lines in the contract so you can see what you are paying for. That transparency matters on older homes, where the difference between a safe job and a risky one is often a line item that a cheap bid leaves out.
Where it fits your project, we also steer scope toward practical choices, such as replacing a worn window or door that will keep generating dust rather than repainting it for the fifth time. Our guide to the right order of work in a renovation shows how lead-safe steps fit into the schedule. If you are unsure whether your project is a job for a certified crew, a free estimate is a low-pressure way to find out, and the site visit is where we confirm what needs testing, what can be repaired in place and what should be replaced. We would rather tell you early that a window needs to come out than discover it after dust is already in the hallway.
10. Planning Lead Safety Into Your Budget and Schedule
Lead protocols are easier to absorb when planned. A few principles:
- Test early. A short lab turnaround at the start prevents mid-project surprises that cost far more.
- Group the dusty work. One containment setup for several tasks is cheaper than three.
- Replace instead of repaint where it makes sense. Windows and doors are common lead sources, and new components remove the issue.
- Allow contingency. Pre-war buildings reveal surprises. Leave a reserve in the budget, often 10 to 15 percent, for hidden conditions.
- Choose finishes with the end in mind. Smooth, cleanable surfaces make future lead dust easier to control. For a sense of how paint, floors and tile compare for value, see our renovation ROI guide for 2026, and for painting prices see calculating paint costs for home renovations.
Typical 2026 planning ranges for context, as estimates and not quotes: bathroom full renovation about $30,000 to $60,000 or more and three to six weeks; kitchen about $25,000 to $85,000 or more and six to twelve weeks; selective demolition about $8 to $30 per square foot. Lead-safe measures, asbestos surveys and special disposal are added to those depending on what testing finds.
11. Neighborhoods and ZIP Codes We Serve
Lead risk follows building age, so the way it shows up differs from one neighborhood to the next.
- Inwood, Manhattan (10034, 10040). Pre-war apartment buildings and older co-ops often carry multiple paint layers on windows and radiators. Board approval and freight elevator rules affect how and when containment can be set up. See our Astoria painting page for a similar older-walk-up perspective in Queens.
- Prospect Heights, Brooklyn (11238). Brownstones, pre-war co-ops and a Landmarks district mean original trim and doors may be protected, which favors stabilization over replacement. Landmarks rules apply to exterior work.
- Astoria, Queens (11102, 11103, 11105, 11106). Attached brick row houses, pre-war walk-ups and newer condos create a mix: older homes need testing, while newer condos usually do not.
- New Springville, Staten Island (10314). Attached townhouses, condos and detached homes of mixed ages. Detached houses often have older exterior wood trim worth testing.
- Valley Stream, Nassau County (11580, 11581). Capes and colonials inside the Village of Valley Stream and surrounding areas. Municipal building departments issue permits.
- Fair Lawn, Bergen County, NJ (07410). N.Y. Renovation Services serves all of these areas. Capes, ranches and garden apartments from the mid-century era. Many postdate the 1978 ban in part, but older ones should be tested, and NJ municipal construction offices handle permits.
12. Next Steps: Get Your Free Estimate
If you are planning to open walls, replace windows, redo a bathroom or repaint in a home built before 1978, the safest first step is a conversation before demolition day. Use the online quote form or call (347) 455-1741 and tell us the building's age, the rooms involved, and whether young children or someone pregnant lives there.
You will get a free, written, itemized estimate that shows testing, containment, cleanup and any special handling separately. N.Y. Renovation Services handles permitting and board paperwork, coordinates licensed trades for plumbing and electrical, and keep pricing transparent with no hidden fees. 5% of the total project cost is donated to a nonprofit of your choice.
Related reading: the NYC permit checklist, our interior painting cost and prep guide, and the Paint Quantity Calculator.
Safety Note: All work follows OSHA 30 safety and EPA Lead-Safe practices for pre-1978 homes. Check local permit requirements before starting.
James - Lead Renovation Editor. With over 20 years in renovation and construction, James writes and edits our guides. More about James