1717 Spruce St, Boulder, CO 80302  ·  Mon–Fri 9–5, Sat by appointment info@zeldavandoco.business
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Mainspring, Cable and Suspension Spring Repair

Replacement of broken mainsprings, frayed cables, worn chains and failed suspension springs.

Mainspring & Suspension Repair done properly

Springs and cables are the consumable parts of a clock. A mainspring lets go with a bang and stops the clock instantly. A cable frays quietly for months before a weight drops. A suspension spring cracks so subtly that most owners assume the clock simply 'lost interest'. All three are fully repairable, and all three should be handled before the damage reaches the movement.

What this service covers

  • Broken or set mainsprings replaced with correct-gauge stock
  • Frayed weight cables replaced and re-spooled
  • Worn chains and sprockets matched and fitted
  • Suspension springs and forks replaced and aligned
  • Barrels cleaned and greased on set-in-barrel movements
Mainspring & Suspension Repair — Replacement of broken mainsprings, frayed cables, worn chains and fail

Clocks and situations this suits

Spring-driven mantel, wall and cuckoo clocks

Cable-driven floor clocks with pulleys

Chain-driven Black Forest movements

Torsion clocks with fragile suspensions

Serving Boulder, Louisville, Lafayette, Longmont, Superior, Erie, Broomfield, Westminster, Arvada and Denver. Bench work at our Spruce Street shop; in-home visits throughout the service area. See all areas served →

Questions about mainspring & suspension repair

How do I know a mainspring is broken?

The key spins freely, or you hear a sharp bang followed by silence. Do not keep winding after that.

Is a broken cable dangerous?

A falling weight can crack the case and injure the movement, so a fraying cable should be replaced immediately.

Can you replace just one spring?

We can, though on a chiming clock we usually recommend replacing all springs of the same age together.

Ready to get your clock running again?

Talk to a working clockmaker, not a call centre. Free phone consultation and a written estimate before any work begins.

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