Why soot level drives the cost
After a fire, the flames are only part of the damage. Smoke carries fine particles and odor into closets, attic insulation, ductwork and the backs of cabinets. FEMA's homeowner guide to residential smoke damage groups homes into three levels. Light damage is odor with no visible soot. Moderate damage has a visible film of soot and particles on surfaces. Heavy damage has thick soot and widespread particles, and FEMA's advice at that level is to hire a professional restoration contractor rather than clean it yourself.
Those levels line up with how restoration work is actually scoped. Odor-only jobs are mostly about cleaning soft goods, swapping filters and neutralizing smell. A visible film means every surface in the affected rooms gets cleaned from the ceiling down, and soft contents may need specialty cleaning. Heavy soot or charring usually means removal of damaged materials, structural cleaning or sealing, and rebuild.
What the other questions change
Room count. Smoke travels. A kitchen fire can leave odor upstairs, so a light job across many rooms trends toward the top of the limited band.
Water and foam. Firefighting water soaks drywall, insulation and floors. That is a separate water loss with its own drying and its own line on an estimate, so the tool reminds you to check the water calculator too.
HVAC. If the furnace or air conditioning ran during or after the fire, it may have spread particles through the ducts. FEMA recommends cleaning registers and having ducts and the furnace professionally cleaned when soot is present.
What the result does not cover
The bands come from our published cost guide and describe cleaning and restoration scope. They do not include temporary housing, replacing contents that cannot be cleaned, or upgrades during rebuild. A whole-house odor problem without visible soot can also fall between bands, and the tool says so instead of guessing.
Before anyone visits
Do not re-enter a fire-damaged home until the fire department says it is safe. Avoid wiping soot with a dry cloth or running the HVAC, which can smear residue and spread it. Photograph every room before cleaning anything. When you are ready, call (484) 293-9520 or send the short form, and a local restoration provider may contact you about an assessment.