# Asbestos & Lead Testing Before Mold & Demo Work | Castle Rock Water Restoration Pros > Colorado requires testing before disturbing materials in older homes. CDPHE requirements, why it precedes demo, and lead-safe practices. URL: https://waterdamagecastlerock.com/guide/asbestos-lead-testing-before-mold-demo/ Last-Modified: 2026-07-21 ![Inspector taking material sample from older home wall](/images/misc/certified-inspector-in-ppe-taking-a-material-sampl.webp) If your home was built before 1980, any water damage, fire, mold, or renovation project may trigger a regulatory requirement to test for asbestos and lead before disturbing materials. This is a step homeowners often don’t know about — and one that determines how the whole job runs. ## What CDPHE Regulation 8 covers Colorado’s asbestos regulation (Regulation 8) requires: - **Pre-demolition and pre-renovation inspection** for asbestos in structures that will disturb suspect materials - **Sample collection by a state-certified asbestos building inspector** - **Analysis by an accredited laboratory** - **Notification to CDPHE** for regulated projects - **Abatement by a certified contractor** if asbestos is present above thresholds Threshold amounts depend on the material type and project scope. Small projects on single-family homes have different requirements than commercial or larger residential. ## Materials that commonly contain asbestos in Colorado homes Homes built 1930s-1980s: - **Vinyl floor tile and mastic** — extremely common in kitchens, bathrooms, basements - **9x9 tile** especially - **Popcorn ceilings and textured ceiling coatings** - **Insulation** (vermiculite, pipe wrap, block insulation) - **Roofing materials** (some shingles, roofing felt) - **Drywall joint compound** (some brands, some years) - **HVAC duct wrap** and duct tape - **Siding** (asbestos cement siding) The tricky part: you can’t tell by looking. Materials that look identical to modern asbestos-free versions can contain 5 to 50 percent asbestos. Only lab testing confirms. ## What lead paint testing covers Federal EPA rules under RRP (Renovation, Repair, and Painting) apply: - Homes built before 1978 - Any project that disturbs more than 6 sq ft interior or 20 sq ft exterior of painted surface - Contractors must be EPA RRP-certified - Testing or lead-safe work practices required ## Why this matters for water, fire, and mold jobs ![Historic Colorado home with vintage materials](/images/misc/historic-colorado-home-built-in-the-1960s-with-ori.webp) A water damage job in a 1962 Englewood ranch might involve: - Removing wet 9x9 floor tile in the basement (asbestos suspect) - Cutting damaged drywall (joint compound asbestos suspect) - Disturbing plaster walls with old paint (lead paint suspect) Without testing first, we’d potentially release asbestos fibers or lead dust into a home that just went through a water event — turning one problem into three. ## The testing process ![Inspector taking material sample from older home wall](/images/misc/certified-inspector-in-ppe-taking-a-material-sampl.webp) **Step 1: Site assessment.** A certified asbestos inspector walks the property, identifies suspect materials, and plans sampling. **Step 2: Sample collection.** Small samples of each suspect material are collected using proper procedure — wet methods, HEPA vacuuming, PPE. Chain-of-custody documentation. **Step 3: Lab analysis.** Samples go to an accredited lab (PLM analysis for most materials, TEM for others). Turnaround usually 24 to 72 hours; rush available. **Step 4: Report.** Detailed report identifies which materials contain asbestos, at what percentage, and provides recommendations. ![Sealed asbestos and lead sample bags](/images/misc/sealed-sample-bags-labeled-for-asbestos-and-lead-l.webp) ## When testing is positive If asbestos is above regulated thresholds: - Abatement by a certified contractor is required - The affected material comes out under containment, wet methods, HEPA filtration - Regulated waste disposal - Post-abatement clearance testing - Then restoration/demo proceeds normally If lead paint is present: - RRP-certified contractor handles the work - Lead-safe work practices (wet methods, HEPA vacuuming, containment) - Cleaning verification Both add time and cost to the project — but they’re required, and they protect occupants. ## When it doesn’t apply - Homes built after 1980 usually don’t need pre-demo asbestos testing (but ask if you’re unsure) - Very small projects that don’t disturb suspect materials - Areas of the home that are structurally distinct and built in different eras ## How we handle this For any restoration job in a pre-1980 home, we recommend testing before disturbance. We coordinate with certified asbestos inspectors, adjust scope based on results, and coordinate abatement contractors as needed. Insurance typically covers testing as part of the loss. ## Cost - Basic asbestos inspection with a few samples: $300 to $600 - Comprehensive multi-sample inspection: $600 to $1,500 - Lead paint testing: $200 to $400 for basic testing, more for extensive Compared to the risk of unpermitted demo of asbestos or lead-containing materials, testing is a small line item. ## Call us If your home was built before 1980 and you’re dealing with water, fire, or mold damage, call **(720) 842-1950** for an assessment. We’ll walk you through what testing is warranted and coordinate the whole process as part of our mold remediation [/mold-remediation/ →](/mold-remediation/) service. Related: what causes mold after water damage [/guide/what-causes-mold-after-water-damage/ →](/guide/what-causes-mold-after-water-damage/) . ## Frequently Asked Questions Is asbestos testing required in Colorado? Yes, CDPHE (Colorado Department of Public Health and Environment) Regulation 8 requires testing before disturbing suspect materials above certain threshold amounts in projects that involve renovation or demolition. Certified inspectors collect samples for accredited laboratory analysis. Why test before demo? Disturbing asbestos or lead without testing releases hazardous fibers or dust into the air, exposing crews and occupants and creating a much larger cleanup obligation. It also triggers potential fines and legal exposure. Testing costs a few hundred dollars; violations cost thousands or more. Which homes are at risk? Generally homes built before 1980 for asbestos (though some materials contained asbestos into the mid-1980s) and homes built before 1978 for lead paint. In the South Denver metro, that includes much of Englewood, older sections of Littleton, and pre-1980 Castle Rock and Parker properties.