How to fix a sinking office chair

Difficulty: Medium30–90 min3 tools💬 0

✓ Checked against manufacturer instructions and current safety standards · updated 8.7.2026.

What you'll need

Tools

  • Microfiber cloths and soft brushesFor a safe inspection and basic procedure.
  • Small clamps and wooden blocksFor a safe inspection and basic procedure.
  • Protective gloves and gogglesFor a safe inspection and basic procedure.
Estimated cost0–50 KM for basic procedure
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1 Prepare for safe work

Clean the object with a mild method, photograph the existing patina, and test the procedure on a hidden area first. Work with ventilation and save original parts and hardware.

⚠ Warning: The gas cylinder is under high pressure. Do not cut, drill, heat, or attempt to refill it.

2 Determine the pattern of the problem

Confirm that the lever presses the valve correctly and that the problem is not a loose mechanism under the seat.

3 Check the most common cause

Measure the length, diameter, and mount type of the gas cylinder, and obtain a replacement of appropriate load capacity.

4 Apply the appropriate solution

Remove the base and mechanism with controlled taps of a rubber mallet, without drilling the cylinder, then press in the new cylinder using the weight of the chair.

? Tip: Photograph the initial state and change only one thing at a time so that you know which check really affected the result.

5 Test the result and set the boundary

Let the glue, filler, or coating cure completely, then inspect the joint in daylight and side light. The finish should be reversible or at least must not unnecessarily remove the original material.