Window Replacement

Many homeowners wait too long to replace their windows, living with drafts, condensation, and higher energy bills. Here are the key signs it is time for replacement:

• Drafts and air leaks: If you feel air movement near closed windows, the seals have likely failed
• Condensation between panes: Fog or moisture between double-pane glass means the seal is broken and the insulating gas has escaped
• Difficulty opening or closing: Warped frames or failed balances make windows hard to operate and may prevent emergency egress
• High energy bills: Old single-pane or failed double-pane windows are a major source of heat loss and gain
• Visible damage: Rotting wood frames, peeling paint, or water staining around windows indicate moisture intrusion

If your windows are over 20 years old or you have single-pane glass, replacement will likely pay for itself through energy savings and reduced maintenance within 5-10 years.

Window replacement costs range from $300-$1,500 per window installed, depending on frame material, glass type, and window style:

• Vinyl windows: $300-$700 per window. Low maintenance, good insulation, widest variety of styles
• Wood windows: $600-$1,200 per window. Classic appearance, excellent insulation, requires periodic maintenance
• Fiberglass windows: $700-$1,200 per window. Maximum durability, slim profiles, paintable
• Aluminum windows: $400-$900 per window. Slim frames, modern aesthetic, less insulating

For a whole-home replacement (15-20 windows), expect to spend $4,500-$24,000 depending on material. Double-pane Low-E glass is standard. Triple-pane adds 40-60% to cost but provides the best insulation for cold climates. Many utility companies offer rebates for energy-efficient window upgrades.

The quality of installation matters as much as the quality of the windows themselves. A poorly installed window will leak air and water regardless of how premium the product is. Look for:

• Proper measurement and fit: The contractor should measure each opening individually. Improperly sized windows create gaps that leak air and water
• Flashing and weatherproofing: Proper flashing around each window prevents water intrusion, which is the most common cause of window-related damage
• Warranty coverage: Understand both the manufacturer warranty (covering the product) and the installation warranty (covering the labor)
• Experience with your chosen material: Ask specifically about their experience with the window brand and material you have selected

Beware of extremely low quotes that may indicate cut corners on waterproofing or use of subcontractors. Ask whether the company uses its own crews or subcontracts the installation work.