National figures · sources checked Sep 29, 2026
Window replacement cost: what national cost guides report
These are national figures published by two cost guides, with a link to each so you can read how they were measured. One reports whole projects and one reports cost per window, so both are shown. Window size, type, glass and frame materials move the real number, so treat these as a starting point, not a quote.
National cost ranges
| Project | Typical range | Average | Source and date |
|---|---|---|---|
| Window installation (whole project) | $3,436 to $11,837 | $7,347 | HomeAdvisor: What Is the Average Cost to Install Windows?, updated Jun 17, 2026 |
Unit costs
| Project | Typical range | Average | Source and date |
|---|---|---|---|
| Window replacement, per window | $450 to $1,200 per window | About $800 per window | Fixr: How Much Does Window Replacement Cost? [2026 Data], updated Jan 21, 2026 |
| Small window (2 by 3 ft or smaller) | $100 to $400 per window | Not given | HomeAdvisor: What Is the Average Cost to Install Windows?, updated Jun 17, 2026 |
| Medium window (3 by 4 to 4 by 6 ft) | $200 to $800 per window | Not given | HomeAdvisor: What Is the Average Cost to Install Windows?, updated Jun 17, 2026 |
| Large window (over 4 by 6 ft) | $700 to $3,000 per window | Not given | HomeAdvisor: What Is the Average Cost to Install Windows?, updated Jun 17, 2026 |
What the sources say moves the price
- HomeAdvisor: window size, glass type and brand set the final total. (Source: What Is the Average Cost to Install Windows?, updated Jun 17, 2026)
- Fixr: window size, window type, and frame and glass materials. (Source: How Much Does Window Replacement Cost? [2026 Data], updated Jan 21, 2026)
How these figures were gathered
- HomeAdvisor says it surveyed over 10,000 customers about their project costs to build these figures. (Source: What Is the Average Cost to Install Windows?, updated Jun 17, 2026)
- Fixr says it gathers cost information from pricing databases, licensed contractors and industry experts. (Source: How Much Does Window Replacement Cost? [2026 Data], updated Jan 21, 2026)
We copied each figure from the linked page on September 29, 2026; the date next to it is the page's own last update. These are national numbers, so prices where you live can be higher or lower. We don't publish cost estimates of our own, and none of these figures come from the contractors listed on this site.