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Chamberlain LiftMaster Professional 3240 Opener

Philadelphia Garage Door Pro has chosen industry leader Chamberlain LiftMaster as its exclusive garage door opener manufacturer. Liftmaster is rated #1 by Consumer Reports!

When choosing a particular garage door opener, note that there are 3 different types:

  • Belt Drive Openers
  • Screw Drive Openers
  • Jackshaft Opener

3240 - 1/2 HP Screw Drive Garage Door Opener

The 3240 1/2 HP Screw Drive Garage Door Opener is smooth-running, even in the most extreme temperatures, and is the perfect choice if you want the latest advancements in smooth-running performance with a completely maintenance-free drive system. Our engineers replaced the two-piece plastic liner and aluminum rail system with a stronger, simpler one-piece galvanized steel rail, resulting in reduced friction and eliminating binding and the need for lubrication. And the 1/2 HP motor is equipped with our patented Motor Vibration Isolation System (MVIS®) to reduce noise and provide smooth operation year after year.
  • The Smart Garage Door Opener® lets you electronically program security codes from the Multi-Function Control Panel or the powerhead
  • Delivers 200 watts of light with adjustable light time delay
  • Meets all UL325 requirements


  • The Protector System® safety sensors project an invisible light beam across the garage door opening and automatically reverse the door if anything interrupts the beam while the door is going down
  • Sensing technology will stop the door from closing if contact is made with a person or object
  • Opener light turns on automatically when The Protector System's infared beam is broken
  • Patented technology detects when a door spring breaks and triggers the motor to reverse the door to the full open position
  • Security+® rolling code technology assures a new code is sent every time the remote control is used
  • Patented PosiLock® system ensures the door remains securely locked when the garage door is closed
  • Manual release handle in case of power failure


  • Lifetime motor warranty 
  • 1-year parts warranty