Window Installation Cost Estimator
ANA›Life Services Authority›National Calculator Authority›Window Installation Cost Estimator
.calc-container { max-width: 640px; margin: 2rem 0; padding: 1.5rem; background: #fff; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); font-family: system-ui, -apple-system, sans-serif; } .calc-container h3 { font-family: Georgia, serif; font-size: 1.15rem; color: #1a1a1a; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; } .calc-row label { min-width: 160px; font-size: 0.9rem; color: #333; font-weight: 500; } .calc-row input[type="number"], .calc-row select { flex: 1; min-width: 120px; max-width: 200px; padding: 0.5rem 0.6rem; border: 1px solid #ccc; border-radius: 4px; font-size: 0.9rem; font-family: system-ui, sans-serif; color: #1a1a1a; background: #fafaf8; } .calc-row input:focus, .calc-row select:focus { outline: none; border-color: var(--ac, #3d5a80); box-shadow: 0 0 0 2px rgba(26,74,138,0.12); } .calc-row .unit { font-size: 0.82rem; color: #888; min-width: 30px; } .calc-btn { display: inline-block; margin-top: 0.5rem; padding: 0.55rem 1.5rem; background: var(--ac, #3d5a80); color: #fff; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: 600; cursor: pointer; font-family: system-ui, sans-serif; } .calc-btn:hover { opacity: 0.9; } .calc-result { margin-top: 1.25rem; padding: 1rem 1.25rem; background: #f0f6fc; border-left: 3px solid var(--ac, #3d5a80); border-radius: 0 6px 6px 0; display: none; } .calc-result.visible { display: block; } .calc-result-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #666; margin-bottom: 0.25rem; } .calc-result-value { font-size: 1.6rem; font-weight: 700; color: var(--ac, #3d5a80); } .calc-result-detail { font-size: 0.85rem; color: #555; margin-top: 0.5rem; line-height: 1.5; } .calc-note { margin-top: 1rem; font-size: 0.8rem; color: #888; font-style: italic; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 0.75rem; } .calc-grid-item { padding: 0.6rem 0.8rem; background: #f8f9fa; border-radius: 4px; border: 1px solid #eee; } .calc-grid-item .label { font-size: 0.75rem; color: #888; text-transform: uppercase; letter-spacing: 0.04em; } .calc-grid-item .value { font-size: 1.1rem; font-weight: 600; color: #1a1a1a; } @media (max-width: 720px) { .calc-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; } .calc-row label { min-width: auto; } .calc-row input[type="number"], .calc-row select { max-width: 100%; width: 100%; } .calc-grid { grid-template-columns: 1fr; } } .calc-chart { margin: 1rem 0; text-align: center; } .calc-chart svg { max-width: 100%; height: auto; } .calc-chart-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 1.2rem; margin-top: 0.6rem; font-size: 0.8rem; color: #555; } .calc-chart-legend span { display: inline-flex; align-items: center; gap: 0.3rem; } .calc-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; font-style: normal; } .calc-related { max-width: 640px; margin: 2rem 0 1rem; padding: 1.25rem 1.5rem; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; } .calc-related h3 { font-family: Georgia, serif; font-size: 1rem; color: #1a1a1a; margin: 0 0 0.75rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-related-list { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem 1.5rem; } .calc-related-list li a { font-size: 0.88rem; color: var(--ac, #3d5a80); text-decoration: none; } .calc-related-list li a:hover { text-decoration: underline; } .calc-browse-all { margin: 0.5rem 0 0; font-size: 0.9rem; font-weight: 600; } .calc-browse-all a { color: var(--ac, #3d5a80); text-decoration: none; } .calc-browse-all a:hover { text-decoration: underline; } @media (max-width: 720px) { .calc-related-list { grid-template-columns: 1fr; } }
Window Installation Cost Estimator
Estimate the total cost of window installation including materials and labor based on window type, dimensions, quantity, and regional labor rates.
Window Type
Single-Hung Double-Hung Casement Sliding Bay / Bow Picture / Fixed Skylight
Window Width (inches)
Window Height (inches)
Number of Windows
Frame Material
Vinyl Wood Aluminum Fiberglass Composite
Glazing Type
Single Pane Double Pane (Low-E) Triple Pane
Labor Rate ($/hour)
Remove Existing Windows?
No (New Construction) Yes (Replacement)
Building Stories
1 Story 2 Stories 3+ Stories
Interior Trim / Casing?
No Yes
Calculate
function winCalc() { // --- Read inputs --- var winType = document.getElementById('win-type').value; var width = parseFloat(document.getElementById('win-width').value); var height = parseFloat(document.getElementById('win-height').value); var qty = parseInt(document.getElementById('win-qty').value); var frame = document.getElementById('win-frame').value; var glazing = document.getElementById('win-glazing').value; var laborRate = parseFloat(document.getElementById('win-labor').value); var removal = document.getElementById('win-removal').value; var stories = parseInt(document.getElementById('win-stories').value); var trim = document.getElementById('win-trim').value;
// --- Validation --- var errors = []; if (isNaN(width) || width 120) errors.push("Window width must be between 12 and 120 inches."); if (isNaN(height) || height 120) errors.push("Window height must be between 12 and 120 inches."); if (isNaN(qty) || qty 100) errors.push("Number of windows must be between 1 and 100."); if (isNaN(laborRate) || laborRate 300) errors.push("Labor rate must be between $30 and $300/hour.");
if (errors.length > 0) { document.getElementById('win-result').innerHTML = '' + errors.join('') + ''; return; }
// --- Area calculation --- var areaSqFt = (width / 12) * (height / 12); // sq ft per window
// --- Base material cost per sq ft by window type (USD) --- // Sources: HomeAdvisor, Angi, Modernize 2024 averages var typeCostPerSqFt = { single_hung: 12, double_hung: 16, casement: 20, sliding: 14, bay: 35, picture: 10, skylight: 28 };
// --- Frame material multiplier --- var frameMult = { vinyl: 1.00, wood: 1.55, aluminum: 1.20, fiberglass: 1.65, composite: 1.45 };
// --- Glazing multiplier --- var glazingMult = { single: 0.80, double: 1.00, triple: 1.35 };
// --- Material cost per window --- var baseMaterialCost = typeCostPerSqFt[winType] * areaSqFt * frameMult[frame] * glazingMult[glazing];
// Minimum material cost floor per window type (realistic minimums) var minMaterial = { single_hung: 150, double_hung: 200, casement: 250, sliding: 180, bay: 800, picture: 120, skylight: 350 }; if (baseMaterialCost '; html += 'Item' + 'Per Window' + 'Total (' + qty + ' windows)';
html += 'Window Area' + '' + areaSqFt.toFixed(2) + ' sq ft' + '' + (areaSqFt * qty).toFixed(2) + ' sq ft';
html += 'Material Cost(' + typeLabel[winType] + ', ' + frameLabel[frame] + ', ' + glazingLabel[glazing] + ')' + '' + fmt(baseMaterialCost) + '' + '' + fmt(totalMaterial) + '';
html += 'Labor Cost(' + fmtH(hoursPerWindow) + ' hrs/window @ ' + fmt(laborRate) + '/hr)' + '' + fmt(laborCostPerWindow) + '' + '' + fmt(totalLabor) + '';
html += 'Supplies & Consumables' + '' + fmt(suppliesPerWindow) + '' + '' + fmt(totalSupplies) + '';
if (removal === 'yes') { html += 'Disposal Fee' + '' + fmt(15) + '' + '' + fmt(disposalCost) + ''; }
html += 'Contractor Overhead & Profit (15%)' + '' + fmt(overhead / qty) + '' + '' + fmt(overhead) + '';
html += '' + 'Grand Total' + '' + fmt(allInPerWindow) + '' + '' + fmt(grandTotal) + '';
html += '';
html += 'Estimated Cost Range: ' + fmt(rangeLow) + ' – ' + fmt(rangeHigh) + ' (±15% variability)
';
html += 'Total Labor Hours: ' + fmtH(hoursPerWindow * qty) + ' hours
';
document.getElementById('win-result').innerHTML = html; }
#### Formula
Material Cost/Window = Base Cost ($/sq ft) × Window Area (sq ft) × Frame Multiplier × Glazing Multiplier where Window Area = (Width ÷ 12) × (Height ÷ 12) in sq ft Labor Cost/Window = Base Hours × Story Multiplier × Labor Rate ($/hr) Base Hours adjusted for removal (+0.75 hr) and trim (+0.5 hr) Supplies/Window = max($25, min($60, Area × $4)) Disposal = $15/window (if replacing existing windows) Subtotal = (Material + Labor + Supplies + Disposal) × Quantity Grand Total = Subtotal × 1.15 (contractor overhead & profit) Cost Range = Grand Total × [0.85, 1.15]
#### Assumptions & References
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