Garage Door Opener Installation
Openers sized to the door, wired to photo-eyes and tested for reversal, with battery backup for storm-season outages.
A new opener only works well on a balanced door, so an installation starts with the door and not the motor. DASMA is blunt about it: if a door feels heavy, the answer is not a more powerful opener, because openers are designed for doors that are already balanced. We balance-check first, and if a spring or cable is worn we replace it before the new opener goes up.
Then we match drive type and motor to the door's size and weight, mount the rail and the reinforcement bracket on the top section, set travel and force, and place the photo-eyes no higher than six inches above the floor. The wall control goes at least five feet up, out of reach of children. Before we leave, a block laid on the floor must make the closing door reverse, and breaking the sensor beam must reverse it too. Federal rules require reversal within 2 seconds of contact.



Reasons Neighbors Replace an Opener
- An opener with no second safety reversing feature such as photo-eyes
- A chain unit loud enough to wake the bedroom over the garage
- A motor that strains, slows or stalls on a heavy door
- No way to open the door during a power outage
- Remotes that need constant reprogramming, or a worn wall control
- Repeated repairs on a unit that keeps failing after storms
🌊 The Biscayne Bay Factor
Two local facts shape an installation. The first is power: a storm that cuts the lights should not trap a car, so we offer openers with an integrated battery backup. LiftMaster says the enclosed battery usually lasts one to two years and its status light tells you when to swap it. The second is lightning: Florida had more of it than any other state in 2022 by NWS Miami's count, so we recommend a surge-protected outlet. Before a hurricane, DASMA advises closing the door and leaving it closed; a wind-rated door may have a manual lock, and the opener should be disconnected while it is locked.
How a Visit Goes
Balance and door check
Springs, cables, rollers and tracks are tested first, because the opener is only as good as the door it lifts.
Match the opener to the door
Drive type, motor and battery backup are chosen for the measured door and how your household uses it.
One exact quote on site
You approve one price for the opener, the install and any door repair we find before work starts.
Install, set and test
Photo-eyes, travel, force and reversal are set and tested, and the battery backup is tested by unplugging the unit.