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The cost to repair a window is $400 on average, with prices ranging from $75 to $1,500, depending on the window size, the broken part, and the window type. Broken glass and window frames are typically the most expensive window repairs, while minor fixes like repairing the track, seal, and sash are more affordable. Other cost factors include:

• Number of panes

• Window material 

• Accessibility 

• Labor costs

• Emergency window repair

Stained glass window repairs cost about $300 on average. Typical prices range from $65 to $800, depending on the size, location, repairs needed, and whether you need to fully or partially replace the window. Full stained glass window replacements can cost $700 to $5,000 per panel. The repair type also impacts repair costs:

• Crack: $100–$300

• Faded glass: $100–$300

• Regrouting: $200–$500

• Cement replacement: $200–$500

• New window frame: $200–$500

• Cleaning: $300–$600

• Resoldering joints: $500–$1,500

• Replacing reinforcing bars: $700–$3,000

Yes, you can repair a damaged or cracked mirror with a repair kit. However, DIY mirror repairs are best suited for minor cracks and chips in the glass, whereas you may need to hire a glass repair contractor to fix a large, valuable mirror with extensive damage. To repair minor glass issues, use a resin-based repair kit and be sure to follow the manufacturer’s instructions for best results. You can also remove scratches from glass with metal polish, nail polish, baking soda, or glass polisher. 

For most common repairs, a professional window repair service can fix a window in one to three hours. However, replacing window frames or repairing a large, multi-pane window will likely take longer to complete. For comparison, a window installation or repair professional should be able to replace up to 15 windows per day.

The type of window repairs required significantly impacts the project cost. It’s always best to hire a local window repair company for this kind of work. The most common window parts that need repair include:

• Broken seal or fogginess between panes: $70–$245

• Cracked pane: $40–$100

• Broken glass: $200–$2,000

• Sash, seal, or track: $200–$600

• Latch or hardware: $75–$200

• Broken window frame: $175–$1,000

• Replace window screen: $140–$480