The average cost to replace a small window blown out is between £100 and £200. The typical cost to replace a standard-sized window is between £200 and £325. Finally, you should pay expect to pay between £350 and £850 to fix a large window.
What if I had to replace a window myself?
Removing existing windows and installing new ones is a specialized trade that, if done incorrectly, could compromise the integrity of your wall or nullify any manufacturer warranty.