My opener hums but the door stays put. What is it?

On a chain drive that is usually a stripped nylon drive gear, and the white shavings on the garage floor give it away. On a belt drive it can be a sheared trolley. Either is a repair rather than a replacement. The other possibility is a broken spring, where the motor is straining against the full weight of the door and cannot budge it.

Why does my door reverse before it touches the ground?

Nine times out of ten the safety sensors are out of alignment or one lens is dirty. A bumped bracket, a bike leaning on a sensor or a spider web across the beam all do it. If the sensors check out, the down force or travel limit is set wrong, or a roller is binding in the track and the opener reads the resistance as an obstruction.

Belt, chain or wall mount for my garage?

Belt drive is the quiet option and the right one where a bedroom sits over the garage, which is the standard layout on newer Frisco and McKinney two story plans. Chain drive costs less and pulls heavy wood or carriage doors without complaint. A wall mount jackshaft clears the ceiling entirely, which matters if you want overhead storage racks.

Is battery backup worth adding?

In this part of Texas, yes. Summer storms and winter ice both knock power out, and an attached garage is often the only way into the house. A backup battery gives you a number of full open and close cycles with the grid down. Units sold in some states are required to have it. Texas does not mandate it, and we still recommend it.

Can you program my car to the new opener?

Usually on the day. Most vehicles with built in buttons pair to a modern opener through the learn button or through an adapter for rolling code systems. Some newer cars need a wireless bridge module. We test the car before we leave and tell you upfront if your vehicle needs an extra part.

How long does an opener install take?

Around two hours for a straight swap on an existing rail mount, including programming remotes and running the safety tests. A first time install or a wall mount conversion takes longer because the bracketing, wiring and cable tension all have to be set from scratch. We clear the old unit and packaging away with us.

Garage Door Opener Repair and Installation in Plano

A new opener installed in Plano runs $400 to $850 for a belt or chain drive with rail, two remotes and a keypad. Wall mount jackshaft units sit above that. Repairs are usually cheaper: a gear kit, a safety sensor or a logic board costs a fraction of a replacement. We test door balance first, because an opener that struggles is often fighting a spring problem.

Signs you need this

The motor hums for a few seconds and the door never moves

The door starts down, then reverses straight back up

The remote only works from a few feet away

Grinding from the motor head, with white plastic shavings on the floor

The wall button works but no remote does

The opener is loud enough to wake the bedroom above the garage

What an opener is and is not doing

An opener is a guide motor with a brain. It moves a door the springs have already balanced, it watches for obstructions, and it holds the door closed. It is not a lifting machine. Any diagnosis that skips the balance test is guesswork, so we start there every time. Pull the cord, lift by hand, and a healthy door rises with two fingers and stays put wherever you leave it.

The parts that fail, in order

Safety sensors are the most common call, and the cheapest. Two photo eyes at six inches off the floor have to see each other for the door to close. Anything that nudges a bracket breaks the beam.

Drive gears come next. The nylon gear inside a chain drive head is designed to be the sacrificial part, and after ten to fifteen years of Texas attic heat it gives up. A gear kit restores a unit that is otherwise sound.

Logic boards fail from heat and from lightning. Collin County gets a serious storm season, and a surge down the house wiring or the sensor wiring will take a board out. A surge protected outlet in the garage is cheap insurance.

Capacitors, limit switches and worn trolleys round out the list. Remotes and keypads are usually a programming issue rather than a fault.

Choosing a new unit

Horsepower matters less than people expect. A three quarter horsepower head serves almost every residential door in Collin County, and a full one horsepower unit is worth it mainly for heavy insulated doubles, solid wood or carriage doors with real hardware.

Drive type is the decision that changes daily life. Newer two story plans through Frisco, McKinney and the western edge of Allen put bedrooms and bonus rooms directly over the garage. A chain drive under a child’s floor is a nightly argument. A belt drive with a DC motor and soft start is close to silent by comparison. Older single story ranch homes in Richardson and East Plano have no rooms above the garage, so chain drive remains a sensible, cheaper choice there.

Wall mount jackshaft openers mount beside the torsion shaft and leave the ceiling clear. On a three car garage where the owner wants overhead racks or a car lift, that space is worth paying for. They need a torsion spring setup and adequate side room, which we check on site.

What gets set before we leave

Travel limits so the door seals at the floor without grinding. Down force matched to the door weight, then an auto-reverse test against a two by four laid flat on the ground. Sensors set at six inches and squared to each other. Manual release cord at a height an adult can reach and a child cannot. If the door needs the opener straining to move it, we will tell you the spring balance is the real problem and quote that instead.

How the work runs

Test the door before the opener

We pull the release cord and lift the door by hand. If it fights you or drifts, the problem is spring balance and a new opener would only mask it for a season.

Find the part that actually failed

Gear and sprocket, logic board, capacitor, travel limits, safety sensors and the wiring back to the motor each get checked. You hear which part failed and what it costs before anything is swapped.

Repair or replace, your call

You get both numbers. On a unit under about ten years old a repair usually wins. On an older chain drive with a failing board, a new opener often costs less than the parts.

Set travel, force and backup

Limits and force settings are matched to your door weight, sensors are set at six inches off the floor, and battery backup is tested so the door still opens in an outage.

What it typically costs

Job	Typical range
Safety sensor repair or replacement Pair of sensors, brackets and wiring checked back to the motor	$90 to $180
Gear and sprocket kit The usual fix on a chain drive that hums without moving	$130 to $260
Logic board replacement Board cost varies widely by brand and model year	$180 to $380
Belt or chain drive opener, installed New rail, two remotes, keypad and old unit hauled away	$400 to $850
Wall mount jackshaft opener, installed Clears the ceiling for storage racks, needs a torsion setup	$650 to $1,100
Extra remote or outside keypad Programmed, tested and handed over working	$45 to $110

Typical ranges for Plano and the surrounding area , reviewed September 2026. Every quote is written and fixed before work starts.