Fire Damage Restoration Calculator
Estimate fire restoration costs including fire, smoke, water damage, and structural repair expenses.
About this calculator
Fire loss estimates are traditionally broken into separate cost categories because each type of damage requires different remediation work and a different cost per square foot -- this calculator follows that same structure, applying an illustrative flat rate to each affected area you enter: roughly $35/sqft for fire-damaged area (charred-material removal and structural rebuild), $6/sqft for smoke-affected area (cleaning, deodorizing, and sealing), and $5.50/sqft for water-affected area from fire-suppression efforts (drying and water-damage remediation). Smoke and water damage typically spread well beyond the fire's own footprint -- smoke travels through HVAC systems and open doorways, and suppression water runs downhill and through floor penetrations -- which is why Smoke-Affected Area and Water-Affected Area are entered as separate, usually much larger, figures rather than assumed equal to the fire-damaged footprint; the calculator treats them as fully independent inputs with no built-in relationship to Fire-Damaged Area.
Structural Damage acts as an on/off toggle rather than a graduated input: turning it on adds a flat $3,500 engineering-assessment charge plus a per-square-foot structural-repair cost applied across the fire-damaged footprint, since structural evaluation (checking joists, beams, and load-bearing elements for fire or water compromise) is typically a discrete scope decision rather than something that scales smoothly with area. These per-square-foot rates are generalized planning figures, not a specific published restoration-industry standard -- actual costs vary substantially by region, contractor, materials, and the building's construction type, so use this as a rough order-of-magnitude estimate to sanity-check quotes and insurance adjuster figures, not as a final number.
Inputs
Results
Total Estimated Cost
$19,250.00
≈ 10 gaming PCs
How to Use This Calculator
- Enter the fire-damaged area (sqft) from the scope of loss.
- Enter the smoke-affected area (sqft) and the water-affected area (sqft) from fire suppression — these are often larger than the fire-damaged area itself.
- Toggle structural damage (0 = none, 1 = repairs needed) to include framing and load-bearing repair costs.
- Review total restoration cost broken into fire, smoke, water, and structural line items.
- Cross-check with the insurance adjuster's estimate and supplement for items not captured initially.
How the result changes with Fire-Damaged Area (sqft)
| Fire-Damaged Area (sqft) | Total Estimated Cost |
|---|---|
| 150 | $14,000.00 |
| 225 | $16,625.00 |
| 450 | $24,500.00 |
| 750 | $35,000.00 |
What each input means
- Fire-Damaged Area (sqft)
- Square footage directly damaged by fire/flame
- Smoke-Affected Area (sqft)
- Square footage affected by smoke, soot, and odor (often much larger than fire area)
- Water-Affected Area (sqft)
- Square footage affected by fire suppression water (sprinklers, hoses)
- Structural Damage
- Whether structural repairs (joists, beams, etc.) are needed.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersFire-Damaged Area (sqft) = 300, Smoke-Affected Area (sqft) = 1000, Water-Affected Area (sqft) = 500, Structural Damage = 0 = 4 input(s) provided
- Calculate Fire Damage CostFire Damage Cost10500 = $10,500
- Calculate Smoke Damage CostSmoke Damage Cost6000 = $6,000
Engine last updated . Checked against 3 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
Why are Smoke-Affected Area and Water-Affected Area often larger than Fire-Damaged Area?
Smoke spreads well beyond the fire's own footprint through HVAC ducting, open doorways, and airflow throughout a structure, and fire-suppression water runs downhill and through floor penetrations into rooms the fire never touched. Because of this, the calculator treats Smoke-Affected Area and Water-Affected Area as fully independent inputs rather than assuming they equal the fire-damaged footprint, and entering realistic (often much larger) figures for each is important for an accurate total.
What does toggling Structural Damage actually add to the cost?
It adds a flat $3,500 charge to cover the engineering assessment itself, plus a per-square-foot structural-repair cost applied across the Fire-Damaged Area, reflecting that checking and repairing load-bearing elements like joists and beams is typically scoped as a discrete decision rather than something that scales smoothly with fire-damage square footage. Leaving it off assumes no structural work is needed at all.
Are the per-square-foot rates in this calculator based on a specific industry standard?
No -- they're generalized planning figures meant to produce a reasonable order-of-magnitude estimate, not numbers pulled from a specific published restoration standard. Actual restoration costs vary substantially by region, contractor, material choices, and the building's construction, so treat this as a starting point for budgeting and for sanity-checking a contractor's or adjuster's quote, not as a final figure.
Should I use this estimate instead of my insurance adjuster's scope of loss?
No -- this calculator is meant to give you an independent, order-of-magnitude reference point to compare against an adjuster's or contractor's estimate, not to replace either one. Real restoration scopes account for site-specific factors this calculator doesn't model, such as material salvageability, code-upgrade requirements, and contents restoration, so cross-check any significant gap with a licensed restoration contractor.
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