What Is on the Truck
We come out of Cedar Hill, about 16 miles up the road, so the truck is stocked before we leave rather than restocked on your driveway. For Rendon calls specifically we carry torsion springs sized for the heavier steel doors common to early-90s construction, galvanized lift cables, and the drum and bearing hardware that wears out on doors that have been cycling for 30-plus years. The moderate heat load this part of Texas sees year-round is hard on nylon rollers and on the lubricant inside opener gear housings, so we keep rollers and gear kits on the truck rather than ordering them after we've already diagnosed the problem. What we don't carry is every obsolete part ever made - if your door still has its original 1990s extension-spring hardware rather than torsion, that's a less common fix now and may need a part ordered in, which we'll tell you up front rather than make a second trip.
How We Fix It
First we check whether the door is a repair or a replace call - a cracked spring or worn cable on a door that's otherwise sound is a same-visit fix, but a door with rusted-through tracks or a warped panel from decades of heat exposure sometimes costs more to patch than to swap. On a spring job we release tension safely, pull the old spring off the shaft, and set a matched replacement sized to the door's actual weight, not a generic swap. Cables get replaced in pairs so the drum doesn't pull unevenly. If the opener board has failed, we test the motor and rail separately before condemning the board, since a bad board gets replaced but a good motor doesn't need to be. We balance the door at the end of every spring job, because an unbalanced door is what chews through the next cable or strains the opener gear inside a year.
