We don't quote a spring repair over the phone without seeing the door, because the size, shaft diameter, and number of springs change the number. What we can tell you is that the newer, heavier torsion setups common on Brambleton's post-2000 construction generally run on the higher end of what you'd pay for the same job on an older, lighter door elsewhere in the area - more steel, more wire gauge, sometimes dual springs on a single wide door. We travel from Ashburn for every call here, so there's no separate branch fee tacked on for the five-mile drive. What we won't do is sell you a full spring replacement when one side has failed and the other is still within its cycle life - we'll tell you when it's worth doing both anyway versus waiting. That's a judgment call we make on-site, not one we make to pad an invoice.