Attic Cleaning &Decontamination
Getting the animal out is step one. What it left behind — droppings, urine-soaked insulation, nesting debris, parasites — is still up there, sitting directly above your living space and your HVAC. Locally owned, backed by 35+ years of hands-on experience in St. Louis attics: waste removal, disinfection and deodorizing, and insulation replacement, all from the same company that handled the animal. One call sets up a free on-site inspection.
Book a Free Inspection
Pick a time that works. We’ll call to confirm within an hour during business hours.
The animal left.The mess didn’t.
Every animal that lives in an attic treats it as den, pantry, and bathroom at once — and the contamination is species-specific. Raccoon waste can carry roundworm, leptospirosis, salmonella, and giardia. Rodent droppings and urine can carry hantavirus, LCM, and salmonella, and mouse allergens are a documented trigger for asthma and allergic rhinitis. Bat guano can harbor the fungus behind histoplasmosis, and the danger moment is disturbance, when dried waste goes airborne. Meanwhile the insulation itself — soaked, flattened, and tunneled — quietly stops doing its job, which shows up on your energy bills. This is why “the animal’s gone” isn’t the finish line. Here’s what a contaminated attic looks like.
Droppings & Waste Piles
Scattered rodent droppings along runways, concentrated raccoon latrine sites, or guano heaped below a bat roost. The cardinal rule for all of them: don’t sweep, vacuum, or disturb — that’s how pathogens go airborne.
Urine-Soaked Insulation
Staining, matting, and crystallized deposits through the insulation layers. Urine soaks in, so surface cleaning can’t reach it — soiled insulation has to come out.
The Smell That Won’t Leave
A persistent ammonia or musky odor upstairs, sometimes drifting through vents when the HVAC runs. Odor that survives air fresheners is coming from contamination in the structure — and it also advertises the den site to the next animal.
Nests & Tunneled Insulation
Balled nests of shredded insulation and debris, flattened traffic paths, and tunneling through the batts. Compressed, tunneled insulation loses much of its R-value even where it isn’t soiled.
Parasites Left Behind
Fleas, mites, and ticks that arrived with the animal don’t leave with it — they wait in the nest material and insulation, then go looking for the next warm host downstairs. A sudden indoor flea problem after a wildlife issue usually traces to the attic.
Still hearing activity up there? Removal comes first — raccoons, squirrels, bats, or mice — and restoration follows, usually as one continuous job. Parasites already downstairs? Our flea control handles the living space while we handle the source.
Cleared out. Disinfected. Rebuilt.
Attic restoration isn’t a shop vac and an afternoon — it’s containment, protective equipment, and doing the steps in the right order so contamination gets removed rather than redistributed through the house. Here’s exactly what to expect when Titan handles it.
Free On-Site Inspection
A Titan tech assesses the full scope: what animal caused it (droppings tell the story), how far contamination spread, which insulation is salvageable versus soiled, and whether entry points still need sealing. You get a written scope and quote — including what doesn’t need doing.
Same day or next dayContained Removal & Disinfection
Waste, nests, debris, and soiled insulation removed under containment with proper respirators and protective gear — filtered vacuums for droppings, bagged and sealed removal, nothing carried loose through the house. Then the space is treated with hospital-grade disinfectants and deodorizers, applied per label directions, to address the bacteria, viruses, and fungi animal waste leaves behind and to neutralize the odor.
The health-critical stepInsulation & Repair
Removed insulation replaced and thin spots brought up to proper depth — many homeowners come out of restoration with a better-insulated attic than before the animal arrived. Chewed materials and entry damage repaired, and exclusion finished so the clean attic stays that way.
One company, start to finishSanitation and insulation replacement are available as add-ons to Wildlife Shield, which keeps the whole exterior monitored so you don’t do this twice. Restoration is also available for crawl spaces and commercial buildings — ask at the inspection.
What people ask before they call.
Can’t I just clean the attic myself?
The physical work isn’t the barrier — the exposure is. Sweeping or shop-vacuuming dried droppings aerosolizes exactly the particles you don’t want to inhale: histoplasmosis spores from guano, hantavirus particles from rodent waste, roundworm eggs from raccoon latrines. Professional cleanup uses respirators, containment, and filtered equipment specifically so nothing ends up in the air you breathe. If you take one thing from this page: don’t dry-disturb animal waste.
Does all the insulation have to go?
Not always, and we’ll tell you honestly which is which. Urine-soaked, matted, or heavily tunneled insulation can’t be cleaned and comes out. Insulation outside the contamination zone often stays. The inspection maps it section by section, and the written scope separates must-replace from can-keep — you’re not paying for a full strip-out when a partial one does the job.
Is this covered by homeowner’s insurance?
Sometimes — coverage varies a lot by policy and by animal (some policies treat raccoon damage differently than rodent damage, for example). We’re not insurance advisors, but we’ll document everything with photos and a written scope you can submit to your carrier, and that documentation is included either way. Check with your agent about your specific policy.
How long does attic restoration take?
Scope drives it. A localized cleanup — one latrine site, a section of insulation — is typically a day. A full restoration after a long-running infestation, with complete insulation removal and replacement, usually runs longer, and we’ll give you the honest timeline in the written quote. Either way you’ll know before work starts, not after.
Will the smell actually go away?
Yes, if the source goes away — that’s the key. Odor lives in the contaminated material, so removal of soiled insulation and waste does most of the work, and disinfection and deodorizing treatment handles what’s absorbed into framing and surfaces. This matters beyond comfort: lingering animal odor is a beacon that tells the next raccoon or rodent there’s a den site here, so deodorizing is part of prevention, not just cleanup.
What stops another animal from moving right back in?
Exclusion — and it’s built into the job, not an upsell. Restoration without sealing the entry points is redecorating a room with the door open. Every gap gets closed and reinforced as part of the work, and if you want the whole exterior watched year-round, Wildlife Shield covers squirrels, raccoons, bats, and the rest, with sanitation and insulation add-ons available. Call (314) 720-8857 and we’ll take a look for free.
Make the attic yours again.
Free on-site inspection with a written scope and honest quote. Cleanup, decontamination, and insulation from the same St. Louis team that handled the animal. Phones answered 24/7.