Need Craftsman opener gear & sprocket replacement in Sappington, MO? We diagnose the problem, give you a price before any work starts, and finish most jobs in a single visit. Stripped drive gears replaced so the motor moves the door again. We work on Craftsman garage door openers of every age, from older models to current lines, and carry or can source compatible parts. Older Craftsman openers with model numbers starting with 139 were built by Chamberlain, so their remotes and parts often match Chamberlain and LiftMaster models from the same era.
When to call for Craftsman opener gear & sprocket replacement
- The motor hums or runs but the chain or belt doesn't move
- Grinding from inside the opener
- Plastic shavings under the motor
Common causes
- A heavy, out-of-balance door wearing the gear
- Age and wear on the nylon gear
Before the technician arrives
- Check the door's balance first. A heavy door will strip a new gear too.
Still stuck? Our free symptom checker and troubleshooting wizard walk you through it step by step.
What happens during the visit
- Check the door's balance and springs
- Open the motor head and replace the gear and sprocket
- Grease the new gear
- Re-set the limits and force
- Test it through several cycles
How much does Craftsman opener gear & sprocket replacement cost?
What moves the price:
- Drive type: chain, belt, screw or wall-mount
- Whether the fix is a part or a whole new opener
- Remotes, keypads and smart accessories
- Ceiling height and rail extensions
These are typical U.S. ranges, not a quote. You get an exact price for your door before any work starts. For a quick estimate, try the repair cost calculator.
Other Craftsman services
- Craftsman Garage Door Opener Repair
- Craftsman Garage Door Opener Installation
- Craftsman Smart Garage Door Opener Setup
- Craftsman Remote & Keypad Programming
- Craftsman Garage Door Sensor Repair
- Craftsman Opener Circuit Board Replacement
Craftsman Opener Gear & Sprocket Replacement in Sappington, MO
Openers in Missouri work against stiff cold-weather grease in winter and hot, humid garages in summer, so travel limits and force settings often need a seasonal adjustment.
Technicians serve all of Sappington (ZIP codes 63123, 63126 and 63127), plus Crestwood (1.4 mi), Concord (1.5 mi), Sunset Hills (1.5 mi) and Green Park (2.4 mi). Call (833) 435-8883 to book a visit in Sappington.
Craftsman Opener Gear & Sprocket Replacement: frequently asked questions
How much does Craftsman opener gear & sprocket replacement cost in Sappington, MO?
Craftsman Opener Gear & Sprocket Replacement typically costs $125-$275 including parts and labor, and usually takes about 1 hour. The exact price depends on your door and the parts it needs, and you get it before any work starts. Call (833) 435-8883 for a quote.
Can you do Craftsman opener gear & sprocket replacement the same day?
Often, yes. When a technician is available we can usually come the same day, and common parts are carried on the truck. Doors that won't close or have a broken spring are treated as priority calls, and emergency service is available.
Is Craftsman opener gear & sprocket replacement covered by a warranty?
Our work comes with a 90-day labor warranty on repairs. New parts and doors also carry the manufacturer's warranty, and Craftsman warranty terms vary by product and age. Ask for the warranty details in writing with your quote.
Are your technicians licensed and insured?
Our technicians are insured, and where Missouri or Sappington requires a contractor license for garage door work, the job is done under that license. You're welcome to ask for proof when you book.
Should I repair or replace my opener?
A good rule of thumb: if the repair costs more than about 50% of a replacement, or the opener is near the end of its life, replace it. Most openers last 10 to 15 years. If yours is older than that, lacks photo eyes or rolling-code security, or needs a logic board or motor, a new opener is often better value. Springs are the exception: a broken spring is always replaced, never repaired. Our free repair vs. replace calculator can help you compare.