Window spring repair typically costs $100-$300 per window in the United States, with an average near $180 for replacing a sash balance in a standard double-hung window. The final price depends on the balance type, window size, access, parts availability, and local labor rates; repairing several windows at once may lower the per-window charge.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| One window balance repair | $100 | $180 | $300 | Standard double-hung window, parts and labor |
| Spring or balance part | $10 | $30 | $80 | Per window; specialty parts may cost more |
| Repair two windows | $180 | $320 | $550 | May share a service-call charge |
| Service call or diagnosis | $50 | $90 | $150 | May be credited toward approved repair |
Assumptions: Standard residential windows, ordinary access, and typical U.S. contractor rates; unusually large or custom windows may cost more.
What a single-window spring repair usually costs
For one standard double-hung window, budget about $100-$300, or roughly $180 on average. This estimate generally covers diagnosis, replacement of one or two worn balance components, and adjustment of the sash. A simple repair with an available part may fall near the low end; a hard-to-match balance or added sash work can push the total higher.
Contractors may call the part a sash balance rather than a spring. Common systems include coil balances, spiral balances, and block-and-tackle balances. The quoted price is usually per window, but some companies charge per balance or per sash. Confirm whether the quote includes both sides of the sash when the system uses paired balances.
How parts and labor appear on a window balance quote
Parts are often a modest share of the bill. The larger expense is commonly the visit and the time needed to remove trim or sash, identify the correct balance, install it, and test the window. Ask whether the estimate includes the diagnostic visit, both balance assemblies, and any return trip if a special-order part is needed.
| Quote component | Typical price | What it covers |
|---|---|---|
| Spring or balance parts | $10-$80 per window | Standard or specialty balance components |
| Labor | $75-$150 per hour | Removal, fitting, installation, and adjustment |
| Service call | $50-$150 per visit | Travel and initial diagnosis; sometimes credited |
| Trim or sash access | $25-$100 | Extra work where access is difficult |
| Disposal or small materials | $0-$30 | Fasteners or disposal of damaged components |
For example, 1-2 hours of labor at $75-$150 per hour yields $75-$300 before parts or service-call charges.
Which sash size and balance type change the price
Window dimensions and balance design are two of the clearest reasons estimates differ. A common sash weighing under 30 pounds may use an inexpensive, readily available balance. A wide or tall sash weighing more than 30-40 pounds often needs a higher-capacity component, and some oversized or historic windows require a custom match. Parts for those jobs can reach $50-$150 per window before labor.
Coil balances and spiral balances can be straightforward to replace when the model is identifiable. Older block-and-tackle assemblies, discontinued systems, or balances hidden behind damaged jamb liners may need more inspection or carpentry. A repair involving a cracked frame or a deteriorated liner is not just a spring replacement, so the estimate should list that additional work separately.
Can you lower the cost by repairing one sash?
Limiting work to the failed balance can save money when the frame, sash, and opposite balance are in good condition. However, if both balances are the same age and one has failed, replacing the pair may prevent another service visit. Ask the contractor to price both options separately rather than automatically approving a full window replacement.
Several repairs booked together can spread the service-call fee across more windows. If three windows need similar work, a combined visit may cost roughly $300-$750 total, depending on parts and access, rather than three separate minimum charges. Providing clear photos of the window, labels, and visible balance hardware before the visit can also help identify special-order parts.
How long does spring balance replacement take?
A straightforward balance replacement often takes about 45-90 minutes per window once the correct parts are on hand. A technician may need 1-2 hours for a first repair that includes diagnosis and testing. Multiple windows can take less time per unit when they use the same balance type, though damaged trim or difficult sash removal adds labor.
Special-order parts can extend the calendar time even if installation is quick. Ask whether the contractor has identified the balance before scheduling and whether a second visit will add another trip charge. A quote that includes a return visit should make that charge clear.
Why regional labor rates shift window repair quotes
Labor and travel commonly make quotes higher in dense metro areas than in lower-cost rural markets. A practical comparison is about 10%-25% above typical pricing in expensive coastal cities and 10%-20% below it in some rural or lower-cost regions. These are broad differences, not fixed local rates; minimum visit fees and contractor availability can matter more than the state average.
For a standard repair estimated at $180 in a moderate-cost market, a high-cost metro quote might land around $200-$225, while a lower-cost market might be closer to $145-$165. Historic homes, long travel distances, and limited access can increase the price in any region. Compare written estimates with the same parts and scope, not just the bottom-line total.
When balance repair costs less than replacing the window
If the sash and frame are sound, replacing the balance is generally far less expensive than installing a new window. A whole-window replacement can run several hundred dollars to more than $1,000 per opening, depending on size, material, glazing, and installation. Replacement may be reasonable when the frame is rotten, the sash is badly damaged, or several components have failed.
Spring repair is not a cure for air leaks caused by failed weatherstripping or a warped frame. Ask for separate prices for balance work and any other needed repairs. That distinction helps prevent a small operational problem from becoming a larger replacement project without a clear reason.
What three repair quotes might include
Comparing scope makes a low quote easier to evaluate. For a standard window with one failed balance, a $125 estimate might include a common part and one hour of labor, with the service fee included. A $190 estimate might cover paired balances, adjustment, and a brief workmanship warranty. A $325 estimate could involve a heavy sash, specialty parts, and extra access work.
These examples assume normal residential access and no frame damage. Before approving work, check whether the price is per window or per balance, whether parts are guaranteed to fit, and whether a diagnostic or return-visit fee is separate. A written scope and warranty term make quotes more useful to compare.