1. Keep everyone away
Family members, tenants, staff and pets stay out while the crew plans the work and gets into protective equipment.
Mount Washington, Baltimore, MD · City of Baltimore
Are bats or pigeons leaving droppings on a Mount Washington roof, ledge or balcony? Call (877) 812-4220. Cleanup technicians wet down the guano, remove it, bag it and sanitize the surfaces below.
If anyone is in danger, call 911 first. For a suicide crisis, call or text 988.
Histoplasmosis is a lung infection linked to a fungus that can grow in soil enriched by droppings from birds and bats. Guano cleanup is designed to keep those spores from being breathed in.
Need residential or commercial guano cleanup in Mount Washington or nearby parts of City of Baltimore? You can get help with attics, crawl spaces, barns, rooftops, silos and storage rooms. Why Choose Mount Washington Biohazard Cleanup Help? You make one call.
Many homes in Baltimore, about 82%, were built before 1980. Older insulation and wood framing soak up droppings and hold the smell. With roughly 44 inches of annual rainfall in Mount Washington, roof leaks and humid attics are common, and moisture makes droppings heavier and harder to remove.
A typical bird & bat guano cleanup job includes:
Family members, tenants, staff and pets stay out while the crew plans the work and gets into protective equipment.
Guano is collected without sweeping or blowing, and bagged on site so it never crosses clean rooms.
Guano and soiled materials are taken out, and framing, floors and hard surfaces are cleaned and treated.
HEPA filtration clears the air, surfaces are disinfected, and the owner is walked through the result.
Bird & bat guano cleanup in Mount Washington, Baltimore, MD typically costs $500 to $9,000, depending on the size of the affected area and the materials involved.
The size of the affected area is the biggest factor. A small ledge is quick, while a whole attic or barn takes far more labor and material.
| Type of job | Typical range |
|---|---|
| Minor spot cleaning | $500 - $1,200 |
| Bat droppings cleanup in larger infestations | $600 - $8,500 |
| Standard remediation | $1,500 - $4,000 |
| Full attic restoration | $4,500 - $9,000+ |
These ranges come from published cost guides (Bat guano remediation cost guide, HomeAdvisor) and are not a quote for Mount Washington. Price drivers include amount and depth of droppings, attic size, insulation removal, access. For a real number, call (877) 812-4220.
Try the Mount Washington Biohazard Cleanup Cost Calculator →
Yes, if birds or bats roost near vents or intakes, droppings and dust can enter air paths. Cleanup may include treating vent openings and nearby surfaces.
Roof and high ledge work needs fall protection and care around other people. Crews can remove and wash droppings there, and a property manager or owner can set up access.
It depends on the size of the area, the depth of the deposit, how much insulation must come out and how hard the space is to reach. A small ledge costs less than a full attic. The team sets the price after seeing the space.
Usually, if droppings or urine have soaked into it. Soiled insulation holds contamination and odor and cannot be reliably cleaned. After removal, new insulation is installed as a separate job.
It can be. Dry guano releases fine dust, and some bird and bat droppings can carry a fungus linked to histoplasmosis, a lung infection. Many people never get sick, but older, heavy deposits carry more risk. Avoid stirring it up.
Histoplasmosis is a lung infection linked to a fungus that can grow in soil and droppings from birds and bats. People are exposed by breathing in spores. Many exposed people have no symptoms, and anyone who feels unwell after being around guano should tell a doctor.
See all biohazard cleanup services in Mount Washington, Baltimore, MD →
Call Mount Washington Biohazard Cleanup Help at any hour, including nights and weekends.
Call (877) 812-4220