
Folding doors, also known as bi-fold or accordion doors, are a popular choice for creating seamless transitions between indoor and outdoor spaces. For construction professionals, understanding the cost components is crucial for accurate project estimation. The average cost for folding door installation ranges from $950 to $1,450 per linear foot, depending on various factors such as materials, labor, and site conditions.
• Standard two-panel interior sets start around 60" wide, while exterior systems can span 24' or more. Each additional panel increases costs.
• Custom sizes or heights add complexity and cost.
• Vinyl and aluminum frames are cost-effective for most projects.
• Thermally broken aluminum and clad-wood hybrids enhance energy efficiency but increase costs by 25-40%.
• Solid wood frames offer a premium look at a higher price point.
• Dual-pane low-E glass is standard for residential projects, balancing efficiency and cost.
• Upgrades like triple-pane or impact-rated glass can increase costs by 15-30%.
• Basic top-hung tracks are suitable for small openings.
• Heavy-duty tracks and multi-point locks add durability and cost, especially in coastal areas.
• Removing walls, rerouting electrical, or adding headers affects labor costs.
• Second-story installations require more manpower and safety measures.
Based on extensive data, the typical turnkey price for folding door installation is between $950 and $1,450 per linear foot. This includes:
1. 12' four-panel aluminum low-E folding door: $9,900
2. Structural LVL header and rough opening prep: $2,800
3. Installation labor (3 carpenters, 2 days): $2,400
4. Paint, trim, weatherproofing: $650
Total estimate: $15,750 ($1,313 per linear foot)
• Choose standard widths for cost savings.
• Opt for aluminum frames with thermal breaks instead of exotic woods.
• Plan electrical reroutes early to avoid costly change orders.
• Schedule installations during off-peak seasons for potential labor savings.
• Coastal projects require stainless hardware and impact glass.
• Energy-efficient builds benefit from triple glazing and insulated frames.
• Barrier-free designs may need recessed tracks and flush sills.
Visit CountBricks.com for more information and to schedule a consultation.

The Rivera family replaced a 10' sliding door with a folding system, facing challenges due to salt-spray conditions and energy codes.
1. Dimensions and existing header size were noted using a smartphone.
2. CountBricks AI identified the need for a new LVL header.
• Four-panel thermally broken aluminum door: $8,250
• Impact-rated low-E glass upgrade: $1,400
• Stainless hardware package: $780
• Structural, carpentry, finish labor: $2,600
Total projected cost: $13,030
• Pre-scheduled delivery and crane lift avoided additional fees.
• On-site adjustments were captured in the app, updating the invoice in real-time.
• Final inspection passed with minimal deflection and perfect drainage.
• Order glass a half-shade darker for west-facing rooms to reduce glare.
• Use removable panel stops for easier future maintenance.
• Seal exterior sill pans with butyl-based flashing tape for durability.
Visit CountBricks.com for tools and resources to enhance your construction projects.