What to look for when you walk a property, what those signs actually mean, and the honest limit of visual inspection: plenty of badly contaminated homes look completely normal.
You usually cannot tell by looking. A house where someone smoked methamphetamine daily for three years can present as an ordinary, tidy, freshly painted rental. There is no smell, no stain and no visible residue at the levels that still fail Colorado's 0.5 µg/100 cm² standard by a factor of ten.
So treat everything below as a reason to test, not as a diagnosis. The only thing that answers the question is a surface wipe analyzed by an accredited lab.
Manufacturing sites can carry residual odors described as ammonia, cat urine, solvent, or a sharp chemical sweetness. Use-only contamination usually has no odor at all after a few weeks.
An active or recent manufacturing site can have genuine acute hazards — solvent vapor, corrosives, pressurized containers. That is a call to local law enforcement and the county health department, not a walkthrough. Come back after it has been cleared, then test.
Do not handle any of it. Photograph it, note where it was, and have the property tested.
| What you found | What it likely means | Do this |
|---|---|---|
| Nothing — property looks fine, but it was a long-term rental | Unknown. This is the most common contaminated scenario. | Composite screen, from $225, during inspection. |
| Ceiling staining in one bedroom | Likely use contamination, possibly significant | Room-by-room screen, from $350, to map it. |
| Paraphernalia, no structural signs | Use contamination | Screen, then budget $2,450–$8,550 for decon. |
| Etched fixtures, odd venting, burn marks | Possible manufacturing site | Full CDPHE preliminary assessment, from $725. Do not waive inspection. |
| Strong chemical odor, containers present | Recent or active manufacturing | Leave. Call law enforcement and county health. |
Fentanyl is far more potent by weight, so the hazard threshold is lower, but it is generally less absorptive into building materials than methamphetamine. In practice, fentanyl decon is often less destructive — more surface treatment and contents handling, less demolition.
Colorado has not adopted a numeric residential clearance standard for fentanyl the way it has for meth, so we work to established occupational and industry guidance and document everything. We will tell you plainly what is regulated and what is best practice.
Most residential meth decontamination we take runs $2,450 to $16,200 depending on square footage, contamination level and how much porous material has to come out. A typical 1,500 sq ft home with moderate use contamination lands around $8,550 for base decon; the same house as a former manufacturing site is closer to $16,200, and a large heavy property runs to roughly $28,800.
The Colorado market average for the same work is roughly $15,000–$20,000, and severe cases elsewhere have been quoted past $100,000. We are meaningfully under that — but we are not going to pretend a former lab cleans up for pocket change.
We publish real numbers on our pricing page and run an instant estimator, because the single most common complaint we hear about this industry is that nobody will tell you a price until they are standing in your living room.
Yes. Under Colorado law, once an owner knows a property was used to manufacture methamphetamine or is contaminated above standard, that is a material fact that must be disclosed to buyers. Failing to disclose is a well-travelled route to litigation.
The practical upside: once a property has been remediated and certified to 6 CCR 1014-3 standard, you disclose the contamination and the certification — which is a far better conversation than an unresolved rumour.
Usually not. Most Colorado homeowners policies exclude contamination from illegal drug activity, and many specifically name methamphetamine. Landlord and dwelling-fire policies sometimes include limited vandalism or malicious-mischief coverage that can apply to tenant-caused damage — it is worth filing and finding out.
We provide itemized, insurer-formatted documentation with every job at no extra charge, so if there is a claim to be made you have what you need to make it.
What Colorado law requires when a property is meth contaminated: 6 CCR 1014-3 cleanup standards, seller disclo…
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