Grandfather clocks can be from the early 18th century to the 21st century. You can determine the date of some clocks within a year of their manufacture from the serial number on the dial by their maker; clocks from unrecognized makers will need to be dated by an expert.
What does it cost to service a grandfather clock?
The cost of servicing a grandfather clock can vary between $100 and $2,500, depending on what services are necessary. Normal servicing is not too costly while repairing and replacing parts can quickly add up. Major factors that impact the cost include: The type of clock and internal mechanisms.
Are antique clocks worth anything?
For your antique clock to be worth anything, it must be the real thing. If it is a 20th-century reproduction of an 18th-century German cuckoo clock, it wont be highly desirable. If you can verify the period its from, your antique clock will be worth more.