Meth Contamination in a Home, Signs and Testing

Two Kinds of Contamination

Meth contamination in a home comes from two very different situations, and both leave residue you cannot see.

• A former meth lab. Cooking meth uses flammable and corrosive chemicals. Vapors and spills coat walls, ceilings, floors, drains, ducts and belongings, and waste may have been dumped in sinks, toilets or the yard. These homes can have high residue and chemical hazards beyond the drug itself.
• Meth use. Smoking meth indoors leaves drug residue on surfaces, fabrics and in the air system. Levels are usually lower than in a lab home, but heavy use over months or years can still leave significant residue.

People living in contaminated homes have reported headaches, eye and throat irritation, trouble breathing, skin rashes and trouble sleeping. Young children are the most exposed, because they crawl on floors, touch walls and put their hands in their mouths. If anyone in the home has symptoms you think may be related, tell a doctor where you live and what you suspect.

Any home can be affected, including rentals, apartments, motels, RVs and houses in good neighborhoods. It is not a sign of anything about the next occupant.

Warning Signs to Look For

None of these signs proves contamination. They are reasons to test before you buy, rent or move back in.

You can also check the DEA’s National Clandestine Laboratory Register, a public list of addresses where law enforcement reported finding labs or dumpsites. Many labs never appear on it, and use without a lab never appears at all, so an empty result does not clear a home.

Why Testing Belongs With a Qualified Tester

Meth residue is measured in tiny amounts on surfaces, and the result depends on where and how samples are taken. That is why testing is a job for a qualified tester, not a household project.

• A tester wipes measured areas of walls, ceilings, ducts and other surfaces with prepared swabs and sends them to an accredited lab.
• Screening tests often combine several wipes into one sample to answer a simple question, is there meth residue in the home at all.
• Detailed assessments take separate samples from each room and system to show where contamination is and how high it is. That map drives the cleanup plan.
• After cleanup, clearance testing shows whether the home now meets the standard in your state.

Several states set their own cleanup standards, require state certified or licensed testers and contractors, and keep lists of contaminated properties. Ask your local or state health department what applies where you live.

Home test kits can give a quick yes or no on a single surface, but they do not produce results a buyer, landlord, insurer or health department will accept. Use them only as a first hint, never as proof a home is safe.

What Not to Do

The most common mistakes come from wanting to fix the problem fast.

• Do not clean it yourself. Scrubbing with household cleaners spreads residue and exposes you, and it does not produce the testing records needed to prove the home is safe.
• Do not paint over it. Paint can hide stains and odor, but residue stays in the walls, and a later test through the paint may still find it. Paint also makes proper cleanup harder.
• Do not run the HVAC system in a suspected lab home. Ducts and the air handler may be contaminated and can spread residue.
• Do not remove or throw away lab items. In a suspected active or recent lab, containers can hold toxic, flammable or reactive chemicals. Leave them for police and hazardous materials teams.
• Do not move belongings from a suspected home into a clean one until you know whether they need cleaning or disposal.

If you find what looks like an active lab, with chemicals, glassware or tubing in use, leave right away and call 911 from a safe distance.

How Decontamination Works

A trained crew follows a plan built from the test results and the standard in your state. The work usually looks like this.

1. Ventilation of the home before and during the work, using fans with the exhaust directed outside.
2. Removal of porous items that cannot be cleaned well, such as carpet, pad, upholstered furniture, mattresses and sometimes drywall or insulation in heavily contaminated rooms.
3. Washing of walls, ceilings, floors, cabinets and fixtures with detergent solutions, often several times, then rinsing.
4. HVAC cleaning of ducts, registers and the air handler, or replacement of parts that cannot be cleaned.
5. Plumbing checks and flushing where chemicals may have been poured down drains, and septic system assessment in rural homes.
6. Clearance testing by a tester who is independent of the cleanup crew.
7. Sealing of cleaned surfaces with primer, usually only after clearance, to lock down any trace left behind.

Keep all reports, lab results and the final clearance documents. You may need them to sell, rent, refinance or file an insurance claim.

Buying, Renting and Insurance

If you are buying a home, ask the seller directly about any past drug activity, and ask your agent whether your state requires disclosure. Consider a meth screening test during the inspection period, especially for homes sold as is, bank owned homes and former rentals.

If you are renting and suspect contamination, tell the landlord in writing and ask whether the unit has been tested. Landlords in many areas are responsible for providing a habitable home, and some states have specific meth rules for rentals. A local tenant rights group or the health department can explain your options.

If you are a landlord, test between tenants if you have any reason to suspect use or a lab, and before re-renting a unit where police found drug activity.

Insurance coverage for meth contamination varies widely. Some policies exclude it or limit coverage for contamination or illegal acts, and landlord policies may treat it differently from homeowner policies. Read the policy, call the insurer, and get the test results in hand before you start any cleanup.

Step by Step

1. Stop and Step Back

   If you suspect contamination, do not start cleaning or painting. If you see what looks like an active lab, leave and call 911 from outside.

2. Write Down What You Notice

   Note odors, stains, damage and any leftovers, and take photos from a distance without touching anything.

3. Check Public Records

   Search the DEA National Clandestine Laboratory Register and ask your local health department or police whether the address has a history. Remember that no record does not mean no problem.

4. Call Your Health Department

   Ask whether your state or county sets meth cleanup standards and whether testers or contractors must be certified. Ask for a list if one exists.

5. Hire a Qualified Tester

   Choose a tester who does not also do cleanup. Ask what sampling method they use, which lab they send to, and what standard they compare results against.

6. Plan Cleanup From the Results

   If results exceed the standard, get written decontamination plans from trained crews based on the test report.

7. Require Independent Clearance Testing

   After cleanup, have the independent tester retest the home. Keep all reports and the final clearance for your records.

Mistakes That Make It Worse

• Painting over stains and odors, which hides residue without removing it and can make later testing and cleanup harder.
• Relying on a home test kit to declare a home safe for a family with young children.
• Hiring the same company to test, clean and clear the home, which creates a conflict of interest.
• Running the furnace or air conditioner in a suspected lab home and spreading residue through the ducts.
• Skipping a test on a bargain priced or bank owned home because the price seemed too good to pass up.

Where You Live Matters