Prices for double glazing per square meter reflect glass quality, frame material, installation complexity, and regional labor rates. The main cost drivers are glass type, frame choice, and project scope, with cost and price varying by region and complexity. Cost estimates are presented in USD with clear low–average–high ranges.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Double glazing per m2 (installed) | $150 | $350 | $700 | Includes standard upvc frame and 4–6 mm glass with basic coatings |
| Per sq ft equivalent | $14 | $32 | $66 | Converted from per m2; useful for comparison |
| Glass type premium upgrade | $20 | $40 | $120 | Low-E, argon, or reflective coatings |
| Frame material upgrade | $25 | $60 | $140 | Aluminum or wood alternatives to standard PVC |
| Labor and installation | $40 | $100 | $220 | Includes removal of old units and sealant |
Assumptions: region, specs, labor hours.
Overview Of Costs
Overview Of Costs presents total project ranges and per-unit ranges with brief assumptions. A typical home retrofit might target 6–12 windows totaling 8–25 m2, affecting both total and per-meter costs. Lower-cost projects use standard glass and PVC frames; premium upgrades push per m2 higher due to enhanced coatings and frame materials.
Cost Breakdown
| Category | Low | Average | High |
|---|---|---|---|
| Materials | $120/m2 | $260/m2 | $460/m2 |
| Labor | $50/m2 | $90/m2 | $150/m2 |
| Permits | $0–$75 | $50–$150 | $200 |
| Delivery/Disposal | $5–$15/m2 | $10–$25/m2 | $40/m2 |
| Warranty | $0–$5/m2 | $2–$8/m2 | $12/m2 |
| Contingency | $0–$10/m2 | $5–$20/m2 | $25/m2 |
Pricing Variables
Pricing Variables include glass quality, frame material, and installation complexity. The following drivers commonly influence price:
- Glass type and coatings: standard double glazing vs. Low-E with inert gas can add 15–40% to the base m2 price.
- Frame material: PVC frames are usually cheaper than aluminum or wood alternatives, with aluminum potentially adding 20–40% per m2.
- Unit size and configuration: larger panes reduce per-m2 labor overhead but may require custom hardware.
- Opening type and installation difficulty: multi-lock configurations or bay windows increase labor hours by 20–50%.
- Site preparation: old frame removal, moisture checks, and trim work add 5–15% to total costs.
- SEER-like or climate considerations: regions with extreme temperatures may benefit from higher-performance glazing, impacting price.
Ways To Save
Savings Playbook focuses on practical approaches without sacrificing function. Consider standard glass first, plan for off-peak installation windows, and batch multiple openings into one project to reduce repetitive mobilization costs.
Regional Price Differences
Prices vary by market. In urban markets, expect higher labor and delivery charges, while rural areas may see lower labor but longer lead times. Below are indicative deltas by region.
- West Coast urban: +10% to +20% vs national average
- Midwest suburban: close to national average
- South and rural: -5% to -15% vs national average
Labor & Installation Time
Labor costs reflect crew size and hours. Typical installation crews range from 1–3 workers for small jobs to 4–6 for larger multi-window projects. A standard 8–20 window retrofit may require 1–3 days depending on site conditions.
Real-World Pricing Examples
Three scenario cards illustrate common outcomes. Assumptions: region, specs, labor hours.
Basic
Specs: standard 1.5 m x 1.2 m pane, PVC frame, standard float glass with basic sealant. Labor: 6 hours. Materials: low-cost glass and frame. Totals: $2,000–$3,000 for a 10–12 m2 installation. Per m2: $200–$300; per sq ft: $18–$28.
Mid-Range
Specs: Low-E coating, argon-filled units, PVC frame with better hardware. Labor: 9–12 hours. Totals: $3,900–$6,000 for 15–20 m2. Per m2: $260–$355; per sq ft: $24–$33.
Premium
Specs: aluminum or composite frame, double Low-E with reflective coating, warm edge spacer. Labor: 14–20 hours. Totals: $7,500–$12,000 for 25–35 m2. Per m2: $300–$480; per sq ft: $28–$44.