Window Replacement Cost: DIY vs Professional Installation
Replacing old, drafty windows can significantly improve your home’s energy efficiency, comfort, and curb appeal. Window replacement costs vary widely based on window type, size, material, and whether you install them yourself or hire a professional. Here’s a complete breakdown to help you plan your project.
Average Window Replacement Costs
A typical double-hung replacement window costs $300-$700 for the window unit plus $100-$350 per window for professional installation, bringing the total to $400-$1,000 per window. For a house with 10-15 windows, full replacement runs $4,000-$15,000 professionally. High-end windows (fiberglass, custom sizes) plus installation can reach $1,500-$2,500 per window.
Window Types and Costs
- Double-hung — $150-$700, most common, easy to clean
- Casement — $150-$1,000, excellent sealing, cranks outward
- Bay/Bow — $1,500-$3,500, major structural project
- Sliding — $150-$800, simple operation
- Picture/Fixed — $200-$800, no moving parts
Frame Materials: Vinyl vs Wood vs Fiberglass
Vinyl windows are the most popular choice: affordable ($150-$600), low maintenance, good energy performance. Wood windows offer the best aesthetics and can be refinished but require maintenance and cost more ($400-$1,200+). Fiberglass windows are the most durable and thermally efficient ($500-$1,500+) but cost significantly more.
Insert vs Full-Frame Replacement
Insert replacement windows fit into existing frames, requiring less labor and causing minimal interior/exterior disruption. They’re ideal when the existing frame is in good condition. Full-frame replacement removes everything including the frame and is required when the frame has rotted, the window is being resized, or you’re upgrading from aluminum to wood frames. Full-frame replacement costs 30-50% more per window.
DIY Window Installation
Insert replacement windows are genuinely achievable for handy homeowners. You can save $100-$350 per window in labor. The key tools are a level, shims, exterior caulk, and insulation. You’ll need 2-4 hours per window. Full-frame replacement is more complex and typically warrants professional installation to ensure proper air sealing and weatherproofing.
Estimate your window project costs. Use the Window Cost Calculator on diycalculator.net to estimate total costs based on window count, type, and material.