Generally you are looking at costs in the range of 50 250 if you do the work yourself.
How to replace garage door spring coil.
Once in place disconnect the garage door opener.
Use locking pliers or a c clamp to secure the door to the track to keep it from opening when you release the tension on the springs 1 x research sourcestep 2 loosen the set screws while holding each spring with a winding bar.
Old garage doors with several failing parts take up to two hours to replace.
Install the new spring reinstall the pulley and reconnect the safety cable and you re done.
Step 1 unplug the garage door opener and clamp the door to the track.
Open the garage door to remove all spring tension and clamp it in place.
Disconnect the spring from the track bracket and the spring pulley and disconnect the safety cable from one end.
The cost of replacing the springs on one or more garage doors will vary depending on how many and what type of springs you replace if you will do the work yourself or hire a professional and where in the country you reside.
If you want to close the door you can try closing it with the opener making sure there s nothing in the door s path in case something goes wrong.
Replacing garage door springs takes 30 minutes to 1 hour depending on the type and size of the garage door and number of springs.
Open the door to relieve the spring tension and secure it open with c clamps in the tracks.
Use a piece of tape to mark the current placement of the pulley so that it.
Disconnect the garage door opener so the door remains closed.
A garage door spring tune up takes 10 to 15 minutes per door.
If you need to leave the door open until you can make repairs block the door track on both sides so the door can t move and unplug the garage door opener if you have one.