Enlarging windows can transform your home by adding natural light and enhancing its aesthetics. Here’s a breakdown of the costs, factors, and tips for a window enlargement project.

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Cost

| Expense | Cost Range |
|-------------------------|-------------------------|
| Typical Project Cost| $800–$5,000 |
| Average Cost | $3,000 |
| Low-End | $100 (small, simple) |
| High-End | $8,000+ (complex projects) |

Key Factors: Window type, labor, structural changes, and materials.

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Cost Breakdown

1. Window Type

Different window styles have varying costs:

| Type | Average Cost to Enlarge |
|--------------------|-----------------------------|
| Single-Hung | $100–$400 |
| Double-Hung | $200–$650 |
| Casement | $200–$1,000 |
| Bay or Bow | $600–$4,500 |
| Egress | $650–$2,500 |
| Picture | $120–$3,200 |

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2. Labor Costs

• Hourly Rate: $40/hour on average.
• Labor Total: $300–$1,200, depending on complexity.
• Factors: Higher floors, skylights, or unique window designs can increase costs.

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3. Structural Adjustments

Enlarging a window often involves structural changes, which affect costs:
- Reframing & Reinforcement: $300–$5,000.
- Building Permits: $50–$500+.
- Engineer Consultation: $300–$5,000 (for significant modifications).

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4. Additional Work

• Electrical Adjustments: $2–$4 per square foot.
• Siding Repairs: $50–$5,000 (based on material).
• Drywall Repairs: $300–$900.
• Trim Installation: $100–$350 per window.

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DIY vs. Hiring a Pro

| DIY | Hiring a Pro |
|----------------------------------|----------------------------|
| Save $300–$1,200 on labor | Professional craftsmanship |
| Risk structural or code issues | Safe, code-compliant work |
| Requires experience, tools | Peace of mind |

Note: Enlarging windows is a complex project with risks of structural damage. Hiring a professional is highly recommended.

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Common Add-Ons & Their Costs

| Add-On | Cost |
|----------------------------|-------------------------------|
| Energy-Efficient Windows | $320–$2,000 per window |
| Low-E Glass Windows | $300–$1,000 per window |
| Window Tinting | $5–$10 per square foot |
| Upgraded Trim | $100–$170 per window |

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Tips to Save Money

• Get Multiple Quotes: Compare prices from at least three local contractors.
• Bundle Projects: Replace or enlarge multiple windows simultaneously to lower the cost per window.
• Cut Downward: Expanding the window downward is less labor-intensive and avoids structural headers.
• Reuse Materials: Salvage trim or other materials to reduce costs.

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Additional Considerations

Accessibility

• First-floor windows are less expensive than second or third floors.
• Skylights or roof windows will require special equipment, increasing costs.

Siding Material

• Wood Siding: Easier and cheaper to cut through than stucco, brick, or metal.

Disposal Fees

• Cost to Remove Old Windows: $100–$800.

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Final Thoughts

Enlarging a window is a transformative project that enhances natural light and increases home value. While costs can range significantly, careful planning, choosing the right contractor, and bundling projects can help you save money while achieving stunning results.

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