It is recommended to leave door as is and call for professional help in most cases sometimes you end up making the problem worse not knowing exactly what is wrong and causing damage to door and risk getting injured . Few Reasons door may be stuck are cable off ,door out of track,broken spring, damaged tracks
Insulation is totally optional to the homeowner and not necessary however it does make a great upgrade in making it a quieter better quality and solid door as well as keeping heat and cold out
We carry and deal with most popular door manufacturing companies and styles in both commercial and residential from sectional doors ,sheet doors ,wind loaded roll ups ,rolling steel,counter shutters ,rolling grills
There are different types of springs which depends on cycles some springs are rated for 6,000, 10,000 cycles and high cycle springs 6-8 years on average
lubricating all rotating bearings ,making sure all screws are tight is a good practice that can be done as preventive maintenance and once 1 year at least have a profession give it an inspection to check balance ,tracks spring tension and any other adjustments needed including motor