A lot of chain drive openers suggest you tighten up the chain so there's about 1/4 in. to 1/2 in. of slack from the rail to the chain (inspect your guidebook). Over tightening up the chain will place excess deterioration on the shaft and also gears. Inadequate stress might cause the chain to avoid off the sprocket and fall down on your auto.
Both usually carry garage doors, and House Depot typically uses an installation solution also. Garage door prices at both stores vary from about $300 (one-car) to $450 (two-car). Double those figures as well as you need to have a ballpark suggestion of set up garage door costs.
When they damage, or when some unsuspecting DIYer attempts to adjust them, they can trigger a lot of discomfort. Wise DIYers know that this is one house duty that is finest entrusted to the pros. (For tips on finding a qualified garage door pro, see The best ways to Locate the Best Garage Door Installers and Repairmen). If your garage door is old, or if it is revealing indications of age, let a knowledgeable contractor inspect your garage door springtimes.