The 2021 Census counted 2,664 people living in Mudjimba and 979 occupied private dwellings. Where a house has a garage door, it is usually the largest moving piece of equipment attached to it, and Steel-Line's homeowner manual puts a sectional door's weight at approaching or exceeding 200kg. B&D's manual does not leave an owner guessing about what to watch on something that size. It names three parts, the cables, the springs and the mountings, and says to examine them frequently for signs of wear, damage or imbalance. This page is about reading those three, and what happens on the visit once you have.
The Queensland Government's 2014 environmental impact statement for the airport expansion listed Mudjimba as one of six localities within five kilometres of the airport; the new north-west/south-east runway it assessed was finished in June 2020. For that runway, the 2014 statement forecast that 77 per cent of departures and 23 per cent of arrivals would pass south over Mudjimba, with the dwellings nearest the south-eastern end overflown below 500 feet on approach, though departing aircraft were expected to be higher. The same 2014 document forecast that 772 of the 953 Mudjimba dwellings it counted within five kilometres would receive five or more noise events of 70 decibels or above during the day on a summer weekday. Under the new runway, on a summer weekday day, the 2014 table put Maroochydore, Mount Coolum, Pacific Paradise and Twin Waters at zero dwellings on that count, against Marcoola's 1,044. Those were 2014 forecasts for a modelled scenario, not measurements. They describe aircraft, not garage doors, and this page does not treat them otherwise.
What shortens a garage door's life is how often it runs. Deadlock publishes that a door used several times a day wears faster, and its published service interval moves with that: once a year for most homes, every six to nine months where the door is used many times a day.
Catching that wear early means looking at the right parts. B&D's home owner's manual is specific about where: frequently examine the door, particularly the cables, springs and mountings, for signs of wear, damage or imbalance. Deadlock's own site puts it in driveway terms: a door that feels heavy, slams down, or a spring that looks gapped or rusty is near the end and worth replacing before it snaps. Those are eye-and-hand signs, and they only register if somebody is there to see them. The 2021 Census counted 127 unoccupied private dwellings in Mudjimba on Census night, 11.5 per cent of its private dwellings, against 9.3 per cent for Queensland. The Census does not say why, and this page does not guess. A door nobody stands in front of, though, is a door whose warning signs nobody reads.
The same parts appear on the service list. Thom checks and adjusts the spring balance, lubricates the rollers, hinges and tracks, tightens the bolts and brackets, inspects the cables and drums, and tests the opener and its safety reversal. B&D's manual puts two of them on a service visit: all screws, nuts and bolts checked for security, and the lifting cables checked for wear where they rub. So the frayed cable or gapped spring you noticed is already on that list.
