Know what mold really costs.
No-nonsense calculators for mold remediation, water damage repair, and the one question no one answers — should you even file an insurance claim? Type your numbers, get a straight estimate before you call anyone.
Mold Remediation
8 calculatorsMold Remediation Cost
Ballpark what mold remediation will cost from the affected area and the per-square-foot rate.
Open →Attic Mold Removal Cost
Estimate attic mold removal from roof-deck square footage and the attic rate.
Open →Basement Mold Remediation Cost
Estimate basement mold remediation from the affected area and a basement rate.
Open →Crawl Space Mold Removal Cost
Estimate crawl space mold removal from the footprint area and a crawl-space rate.
Open →Black Mold Removal Cost
Estimate toxic black mold removal, which costs more to contain and dispose of safely.
Open →Mold Removal Cost
What it costs to physically remove mold — by affected area and per-square-foot rate.
Open →HVAC Mold Removal Cost
Estimate the cost to remove mold from ductwork, coils, and the air handler.
Open →Mold Cost Per Square Foot
Turn a per-square-foot rate and area into a quick total — the simplest mold estimate.
Open →Water Damage
6 calculatorsWater Damage Repair Cost
Estimate water damage repair from affected area, the per-sqft rate, and drying equipment.
Open →Ceiling Water Damage Repair Cost
Estimate ceiling water damage repair from the stained or damaged area.
Open →Basement Water Damage Repair Cost
Estimate basement water damage repair from the flooded area and drying needs.
Open →Flooded Basement Repair Cost
Estimate the cost to repair a flooded basement, including extraction and rebuild.
Open →Burst Pipe Repair Cost
Estimate the water-damage cleanup after a burst pipe, by affected area.
Open →Sewage Backup Cleanup Cost
Estimate Category 3 black-water sewage cleanup — the most hazardous, costliest water damage.
Open →Insurance & Claims
3 calculatorsWater Damage & Mold Coverage Checker
Find out whether homeowners insurance likely covers your water damage or mold — by cause.
Open →Mold Insurance Claim — Should I File?
Compare filing a mold claim against paying out of pocket, factoring premium increases.
Open →Water Damage Insurance Claim — Should I File?
Weigh filing a water damage claim against paying out of pocket over the long run.
Open →Enter your numbers
No sign-up, no fluff. Just the few fields that actually move the answer.
See the breakdown
One hero number, plus the figures behind it — updated live as you type.
Decide with confidence
Know the real cost — and whether to file a claim — before you call a contractor.
Guides
All guides →Should you file a water damage insurance claim?
A claim can raise your premium for years. Here is the math that tells you when to file — and when not to.
Read →What mold remediation actually includes
Containment, removal, drying, clearance testing — and the factors that decide whether you pay $500 or $5,000.
Read →The first 48 hours after water damage
Mold can start within 24–48 hours. What you do first decides whether this is a cleanup or a remediation.
Read →Does homeowners insurance cover water damage?
Sudden and accidental from inside? Usually yes. Gradual leak or outside flooding? Usually no. The full rundown.
Read →Does homeowners insurance cover mold?
Only when it follows a covered event — and usually with a dollar cap most people never check.
Read →Signs of black mold (and when to worry)
Musty smell, dark slimy patches, and symptoms that ease when you leave the house — what to look for.
Read →Stop guessing what mold and water damage cost
When you find mold or come home to water damage, the first question is always the same: is this a few hundred dollars or several thousand? Restoration companies quote in person, so most people call blind. MoldCompass turns each scenario — attic mold, a flooded basement, a stained ceiling — into a single fast calculator that gives you a transparent cost range and breakdown before anyone sets foot in your home.
We also answer the question contractors won’t: should you even file an insurance claim? Because a single water or mold claim can raise your premium for years, paying out of pocket is sometimes the cheaper move. Every tool runs entirely in your browser — nothing to install, no account, no data leaving your device.