Window Repair vs Replacement — Making the Right Call
Not every window problem requires full replacement. Here's how to think through the decision.
Residential Windows Projects
Repairs Worth Making
Broken hardware (latches, cranks, balance springs) is usually worth repairing on windows that are otherwise in good condition. Most window brands have available replacement hardware for 15–20 years after production. Balances on double-hung windows wear out and can make windows difficult to operate — a common complaint in Utah homes from the 1990s–2000s. Balance replacement runs $75–$150 per window and extends useful life significantly. Weatherstripping replacement is similarly cost-effective.
Fogged Glass: Repair or Replace?
Fogged glass (cloudiness or moisture between the panes) means the insulating gas seal has failed. The glass unit itself can often be replaced without replacing the entire window frame — called a glass unit replacement. Cost runs $150–$300 per sash depending on size. This works well when the frame is in good condition. If your frames are deteriorating, repainting, or showing air infiltration, full replacement makes more sense.
When Full Replacement Is the Right Call
Rotted wood frames, cracked vinyl that's allowed water infiltration, single-pane glass, and frames that no longer seal tight against the stop are all cases where repair costs stack up faster than replacement. Windows are also a system — if your frames are from the 1980s and you replace the glass, you still have 40-year-old weatherstripping and hardware. In most cases, windows over 25 years old with any structural issue are better replaced than repaired.
Common Questions
- Can I just replace the glass in my existing window frame?
- For double-pane insulated glass units with failed seals: yes, if the frame is sound. We can source and install replacement glass units for most current window brands. For single-pane windows, the glass can technically be replaced but the thermal performance of the frame assembly itself is the limiting factor — replacement is usually the better investment.
- My windows are drafty but not fogged — what's the problem?
- Drafts typically come from failed weatherstripping, warped sashes, or damaged stop molding — all of which can be repaired. We'll diagnose the source before recommending anything.
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