A window that will not remain open may have a problem with its support hardware or related components. The cause depends on the window type and condition. The sash, balances and surrounding frame should be reviewed together rather than assuming that one generic replacement part will fit. Avoid relying on improvised supports while waiting for service.
Tell the installer whether one window or several units are affected. Include any available product label and photos of the entire window from an accessible position. A description of the movement is helpful, but the exact hardware may still need to be identified on site. Windows that look similar can use different internal components.
The estimate should explain whether the proposed work involves hardware replacement, adjustment or a broader repair. Parts availability and the condition of the sash can affect the recommendation. Ask what operation will be checked after the work, including opening, closing and locking. Restoring one function should not leave the customer unclear about the condition of the others.
770 Doors & Windows provides window repair services for homes, apartments and commercial properties. Send photos, the quantity affected and your ZIP code to begin the discussion. We can arrange an inspection where needed and explain the work based on the specific window, rather than treating every support problem as a reason for complete replacement.