Naples · Collier County
A door that starts down and goes back up is running its safety system, and where in the travel it reverses tells you almost everything. Reversing immediately points one way; reversing an inch above the floor points somewhere completely different. Neither is fixed by turning the force up — that is the one thing not to do.

Five causes cover almost every one of these we see in Naples. They are not equally likely, and they are listed in roughly the order we find them.
If the door barely moves before going back up, the beam between the two floor-level sensors is broken or weak. Misalignment, a dirty lens, low sun straight into the eye, or corroded terminals on a coastal address.
The opener has to know where the floor is. Set too far and the door presses into the concrete, the opener reads the resistance as an obstruction, and it reverses. Very common after a new opener, a floor coating, or spring work that changed the balance.
A seized roller, a bent track, a cable off its drum or a bind in the curve all create genuine resistance that the opener is right to stop for. The fault is the resistance, not the opener.
An insulated or wind-rated door is heavier than the single-skin it replaced. If the spring specification was not changed with it, the opener is working against weight it should not be carrying, and it reads normal travel as an obstruction.
The slowest version of this fault. Drag builds over months, the door starts reversing occasionally, then daily. People adjust the force and the real problem keeps worsening underneath.
Do not turn the close-force up to make it stop reversing. The force setting is the mechanism that makes the door back off when it meets a person or a car. Raising it to overcome a real fault removes a safety system that exists under UL 325 because children have been killed by closing garage doors.
The point of the visit is to find the cause, not to replace the first plausible part. On a call like this in Naples:
Inside the city limits you are almost never more than a mile from the Gulf, and that shows up in the hardware long before it shows up in the door skin. Salt-laden air off the water settles on the torsion shaft, the bearing plates and the bottom of the lift cables, and the first sign is usually a groan on the way up rather than anything visible.
The housing here is largely single-family homes on small lots, many with the garage set back off an alley or a side lane, and a growing number of three-car garages on rebuilt lots, with 1950s and 1960s cottages sitting next to 2015-onward rebuilds on the same street. Around Old Naples, Aqualane Shores, Port Royal, Coquina Sands, the Moorings and Park Shore that shapes which of the causes above turns up most often.
On the salt-exposed addresses, corrosion moves the odds. Cables, bearings, drums and even sensor terminals go before anything visible does, which is why a fault like a door that reverses here is checked at the hardware rather than judged by the look of the door. Galvanised and stainless specification is the correct answer in Naples, not an upsell.
What it costs. Sensor and limit work is the small end. A door that reverses because of genuine resistance is the useful catch — that one was heading for a jam, and finding it at the reversing stage is what keeps it cheap. We quote starting-from figures and we do not close a price before seeing the door. No call-out fee, no diagnostic fee, and no evening, weekend or holiday surcharge.
Depending on what we find, this call often ends up being one of these:
If the door is generally tired rather than faulty, a full service and the right wear parts is usually the better call, and we will say so.
The reversing itself is the safety system working. What is unsafe is overriding it. If the door reverses because something is genuinely binding, forcing it closed is how doors come off their tracks and panels get creased.
You can reach it, and we would rather you did not use it to mask a fault. If the door needs more force than it did last year, something changed — and that something is what should be fixed.
Because the floor is now fractionally higher than the down-limit expects. The door reaches the new surface before the opener thinks it should, reads it as an obstruction, and reverses. A limit reset, nothing more.
Intermittent points at the beam — a filmed lens, a marginal alignment, or sun at a particular time of day. A consistent fault at the same point in the travel points at geometry or resistance instead.
Then the first question is what spring specification was fitted for the new door weight. An insulated door is meaningfully heavier, and reusing the old springs leaves the opener lifting weight it was never rated for.
Same-day across Collier County, with no call-out fee and no surcharge for evenings or weekends.
You get the price before anyone drives out, and if you decide not to go ahead you owe us nothing.