Mold Remediation in Old Colorado City

Found Mold? Here's What You Need to Know First.

Old Colorado City's historic homes — most built between the 1880s and 1950s — weren't designed with modern moisture management in mind. Stone and brick foundations absorb ground moisture continuously. Original plumbing develops slow leaks that go undetected for years. Plaster walls absorb humidity differently than modern drywall, holding moisture against wood lath where mold thrives. The result is that mold problems in OCC homes are often older, deeper, and more extensive than they first appear.

The good news: these problems are solvable. The key is accurate scoping — finding the actual extent of the problem before committing to a price — and proper containment to avoid spreading spores through the rest of the home during removal.

What Makes Historic OCC Homes Different

Stone and rubble foundations without waterproofing membranes. Pre-1950 foundations in OCC were built to drain water away, not to seal against moisture. Ground moisture migrates continuously into basements and crawl spaces — this isn't a defect, it's how these foundations work. Managing it requires vapor barriers and adequate drainage, which many of these homes lack.

Original plumbing has higher slow-leak rates. Aging galvanized steel and cast iron supply and drain lines develop pinhole leaks and joint failures at higher rates than modern materials. These slow leaks often run inside walls for months or years — creating ideal hidden mold conditions in wall cavities.

Mold in plaster walls starts behind the surface. Plaster absorbs humidity and transfers it to the wood lath beneath. Mold establishes on the lath and grows forward. By the time discoloration appears on the plaster surface, the colony is substantial. Surface cleaning doesn't address what's behind it.

Limited attic ventilation in historic construction. Early 20th-century homes often have attics with inadequate ventilation by modern standards. Bathroom and kitchen exhaust — if vented into the attic at all — creates the ideal moisture and temperature conditions for attic mold.

How We Handle Mold Remediation in OCC

1. Free Inspection: We assess with moisture meters and document visible and suspected areas — including attic and crawl space. Written scope and price before work starts.
2. Containment: Plastic sheeting and negative air pressure isolate the work area. Critical in older homes with open floor plans and limited air sealing.
3. Remove and Treat: Affected plaster, lath, and other materials are removed where necessary. Structural wood is HEPA-vacuumed and treated with antimicrobial solution. We work carefully with historic materials to preserve what can be preserved.
4. Moisture Source Addressed: Foundation moisture management, plumbing repairs, or ventilation corrections are identified and either addressed or clearly scoped for follow-up.
5. HEPA Air Scrubbing: Air scrubbers run in the containment zone before it opens to the rest of the home.
6. Clearance Testing: Independent air sampling confirms spore counts are normal. Written documentation provided.

What OCC Homeowners Are Saying

What Does Mold Remediation Cost in OCC?

Small area (under 10 sq ft): $500–$1,500
Mid-size (10–100 sq ft): $1,500–$4,000
Large / whole-room or structural: $4,000–$9,000
Post-remediation clearance testing: $300–$500

Historic home jobs in OCC frequently run mid-range or higher because moisture infiltration has been ongoing for years. The free inspection scopes the actual extent before you commit to a price.