Crawl Space & Basement Mold in Alamosa and the San Luis Valley

The San Luis Valley is high, dry and sunny, which makes people think mold is someone else's problem. But mold does not need a wet climate, it needs a wet spot. A slow plumbing leak, a poorly vented crawl space, or snowmelt that pools against a foundation can be enough in Alamosa, Monte Vista, Del Norte and the surrounding towns.

We are a small, veteran-owned team based in Colorado City. Here is what we look for, and what you can do yourself.

Why dry country still gets mold

• Crawl spaces hold moisture from the ground, especially in homes without a vapor barrier.
• Snowmelt and spring irrigation can send water toward foundations when grading is poor.
• Cold surfaces such as uninsulated pipes and exterior walls cause condensation in winter, when warm indoor air meets them.
• Slow leaks under sinks, behind water heaters and at washer connections can go unnoticed for months.

Signs worth checking

1. A musty smell that is stronger in one room or after the heat comes on.
2. Dark or fuzzy spots on joists, subfloor, drywall or the underside of insulation.
3. Peeling paint, bubbling drywall or warped flooring.
4. Rust on ducts or fasteners in the crawl space.
5. Allergy-like symptoms that improve when you leave the house.

What to do first

Fix the moisture source before anything else, because cleanup without that just grows back. Then keep the area dry with ventilation or a dehumidifier. Avoid disturbing large patches, since it spreads spores. Wear an N95 respirator and gloves if you must go in. Small, surface-level spots on hard materials can often be cleaned by the homeowner, but anything on drywall, insulation or covering more than a modest area is best assessed by a professional. Our article on the signs and causes of black mold goes deeper.

How remediation works

We find and document the moisture, set containment so spores do not travel, use HEPA air filtration, remove materials that cannot be cleaned, and dry the structure to proper levels. Our crew includes IICRC-certified technicians. See our mold remediation page for the full process.

Know the rules

Colorado has new rules affecting landlords and tenants on mold. Our post on SB24-094 covers them, if you rent or rent out property. Verify current details with the state or an attorney.

Local notes

If you are in the Alamosa area and have had plumbing or flooding trouble, see our water damage guide for the San Luis Valley. Water left unchecked for more than a day or two is where mold usually starts.

When to call

If you smell it, see it, or suspect it, call (719) 676-2456. We travel to the San Luis Valley and will give you an honest answer on whether the job needs us. You can also email services@sb-resto.com. Questions are free: (719) 676-2456.