Home damage restoration & remediation calculators
Free, no-signup restoration cost calculators for homeowners, landlords and buyers — water & flood damage, mold remediation, fire & smoke, sewage & biohazard, radon/asbestos/lead, and air-duct & indoor-air-quality. Every tool works on the quantities you measure and the prices you enter from your own quotes, and shows its formula, a worked example and a reference table.
Water & Flood Damage
The volume anchor: water-damage-restoration cost, water-extraction cost, flood-cleanup cost, structural-drying equipment sizing (air movers + dehumidifiers), an IICRC water Category/Class helper, drywall/ceiling water-damage cost, and an insurance out-of-pocket estimator.
All Water & Flood Damage tools →Mold Remediation
The mold cluster: mold-remediation cost, mold-removal cost per square foot, mold inspection & testing cost, black-mold removal cost, attic/crawlspace mold cost, and mold-containment cost with negative-air days. EPA: mold over ~10 sq ft usually needs a pro.
All Mold Remediation tools →Fire & Smoke Damage
After a fire: fire-damage-restoration cost by severity, smoke-damage cleanup cost, soot & odor removal cost (ozone/thermal-fog/HEPA), and contents cleaning / pack-out and storage cost.
All Fire & Smoke Damage tools →Sewage & Biohazard
The high-CPM cluster: sewage-cleanup cost, sewage-backup cleanup cost, biohazard & trauma cleanup cost by the hour, and hoarding cleanup cost. ⚠️ Category 3 black water is a health hazard — certified pros only.
All Sewage & Biohazard tools →Radon, Asbestos & Lead
Environmental hazards: radon-mitigation cost by foundation, a radon fan sizing helper, asbestos-removal / abatement and testing cost, and lead-paint removal and inspection cost. Asbestos and lead are regulated — licensed abatement only.
All Radon, Asbestos & Lead tools →Air Quality & Duct
Clean air after a loss: air-duct-cleaning cost by vents, dryer-vent-cleaning cost, air-scrubber / negative-air CFM sizing (ACH), and indoor-air-quality post-remediation cost with clearance testing.
All Air Quality & Duct tools →Water & Flood Damage
Mold Remediation
Fire & Smoke Damage
Sewage & Biohazard
Radon, Asbestos & Lead
Air Quality & Duct
Built for the whole restoration journey — and to stay correct forever
RestorationCalcs gathers the calculations homeowners, landlords and buyers reach for after a disaster — water & flood → mold → fire & smoke → sewage & biohazard → radon/asbestos/lead → air-duct & IAQ — in one focused hub, in US units, without signup, with transparent formulas. Every tool shows not just the answer but the underlying formula, a worked example and a reference table, so you can sanity-check a restoration contractor’s quote.
Because the tools rest on timeless restoration math (restoration cost = affected sq ft × your $/sq ft × category/severity multiplier + line items, ×(1 + contingency); air movers = ceil(sq ft ÷ coverage); dehumidifiers = ceil(sq ft ÷ LGR coverage); ACH = CFM × 60 ÷ room volume, required CFM = ACH × volume ÷ 60; insurance out-of-pocket = max(0, min(covered, damage) − deductible)) and stable conventions (IICRC water Category 1/2/3 & Class 1–4 definitions; EPA mold ~10 sq ft professional threshold; EPA radon 4 pCi/L action level; 27 cu ft per cu yd; 4–6 air changes per hour for containment; labeled air-mover and dehumidifier sizing typicals), they stay correct with no maintenance — no restoration or labor price list, no regional cost index, no contractor directory. Cost tools use the prices you enter from your own quotes and bills; labeled cost bands are only a sanity guide. More at Sources & formulas, Methodology and About.
Estimates, not bids. Every result is a planning estimate from your own prices, not a bid, a remediation protocol, or medical, insurance or legal advice — get itemized written quotes from licensed, insured, IICRC-certified restoration contractors. Category 2/3 water, sewage and biohazard are health hazards — hire certified professionals and do not DIY Category 3. Mold over about 10 sq ft usually needs a pro (EPA); radon is a serious health risk (EPA 4 pCi/L); asbestos and lead are regulated hazardous materials handled by licensed abatement contractors only. The insurance tool is illustrative only — confirm coverage with your insurer.