Desworthy Editorial Team
Desworthy editorial reviewer focused on ergonomic chair research, desk tech, affiliate disclosure, and practical UK home office buying decisions.
Last reviewed on by Desworthy Editorial Team.
Last Verified Date: 6 October 2026. Sources and model-specific claims checked; individual fit and final basket totals depend on your circumstances.
AI Summary
- Identify whether the sound comes from the floor, castors, arms or an accessible joint before blaming the mechanism.
- The gas cylinder is a load-bearing component. Do not drill it, open it or spray into it without model-specific manufacturer instructions.
- A repeatable video is stronger warranty evidence than an assumed lubrication point. Source 2
Decision table
| Situation | Practical choice |
|---|---|
| Noise only while rolling | Check the floor and castors first. |
| Noise when sitting or reclining | Record the joint area and request manufacturer guidance. |
What to do
Record three separate actions: gently rolling an empty chair, swivelling while seated and reclining. Note whether the seat also sinks or rocks unexpectedly. If structural movement accompanies the noise, stop using the chair and contact the seller. We did not find a verified Sihoo diagram showing safe, precise lubricant points for every model, so this guide does not prescribe a WD-40 location.
An observation log for the support team
| Action | Record the result | Escalation trigger |
|---|---|---|
| Roll the empty chair gently | Floor, wheel or base area | Damaged or insecure castor |
| Swivel normally | Whether noise follows rotation | New rocking or instability |
| Recline within normal controls | Position when the noise repeats | Sudden movement or loss of support |
| Inspect accessible fittings | Loose or missing visible part | Stop if a load-bearing part looks damaged |
Record the model label and a short clip of each action separately. This helps support distinguish a wheel/floor issue from a seat-mechanism complaint without a remote diagnosis. Follow only the manual for the exact chair for accessible screw checks. Do not dismantle or puncture a pressurised gas cylinder.
Do not spray a lubricant over multiple parts to see whether the noise disappears: that makes the source harder to identify and can contaminate nearby surfaces. Ask support for the approved lubricant, component and method before applying one. A squeak accompanied by sinking, rocking or cracking needs a structural assessment rather than cosmetic noise suppression. Retain the video and seller reply with your receipt for the warranty process.
Frequently asked questions
Should I spray WD-40 into the gas lift?
Do not do so without the specific manufacturer procedure.
Can I tighten visible bolts?
Follow the manual for the selected model and avoid over-tightening.
Is every squeak dangerous?
No, but noise with instability needs prompt assessment.
What should I send to support?
The receipt, model identifier, assembly history and action-by-action video.
Sources and citation notes
Specifications and policies are attributed to their original publishers. Named hands-on reviews are attributed to the reviewer and the version reviewed. The decision advice is editorial synthesis, not a clinical, laboratory or transaction result. Check the exact version and current terms before buying.
Related UK buying guides
Note: This article is for reference only.