Overhauling Your Clock


We do the following steps to restore your clock to excellent operating condition:
The movement is taken apart and cleaned, examined for wear and damage, and checked for correct operation. The necessary repair work is carried out including repairing the pinions, polishing the pivots, bushing worn pivot holes, checking and repairing the mainspring ratchets, testing and correcting wheel meshing, and checking the mainsprings. The parts are cleaned again, the pivot holes cleaned with pegwood, the pivots given final cleaning, and the movement is assembled and lubricated. Then the movement is tested with minimum power.

The movement is installed, put in beat and any other necessary adjustments made. Finally, the clock is tested for at least two days while it is being regulated for correct timekeeping. You will be notified by phone that your treasure is ready to go home.


If clockworks of Montgomery does a complete overhaul, we will guarantee our work for 1-year on spring powered (wind up) and Grandfather clocks.

We guarantee that all work accomplished will be done in a workmanlike manner consistent with the latest Horological techniques applicable to your model and vintage. This covers all of our work and any parts we install.
If you feel your clock needs repair within the 1-year guarantee period, please call clockworks of Montgomery. We want you to be happy with your repair.


If your clock stops and you spray it with oil to make it go again, the movement will wear badly, because dust will stick to the oil, forming an abrasive paste which cuts through brass and steel parts. Shortcuts like cleaning the movement whole, even using an ultrasonic cleaner, cannot properly clean pivots, pivot holes, and mainsprings, and often promotes rust. These techniques merely postpone the need for a proper overhaul


“It probably just needs to be cleaned.”

A clock movement must be taken apart to be cleaned properly. While it is apart it makes sense to do the necessary repair work as well. I see almost no clocks that have been so well maintained that they need only cleaning.

“My clock is wound too tight.”

It is time for the clock to be overhauled. The oil has dried up and there may be wear and damage as well.

“I sprayed some WD-40 on it and it worked fine for a while.”

This miracle stuff works fine on cars, but it will gum up a clock and cause excessive wear. This is the worst thing you can do to a clock.

Why American Antique Clocks Stop Running

As dust gets in the mechanism, the oil becomes an abrasive paste, which causes wear. The longer the clock runs in this condition, the more repair it will need. Many American clocks have very strong mainsprings which will run the clock for many years after the oil has gone bad, causing severe wear to pivots and pivot holes. When the clock finally stops, it will take extra work to bring it back to proper condition so we can guarantee it. Previous repair work by unskilled personnel causes more work for us and will increase the repair bill. Often these problems are not visible until the movement is disassembled and cleaned. Less than one out of ten clocks we receive for repair are in such good condition that all the clock needs is oiling! About four out of ten clocks will need more work than just oiling.