Home › Guides › Dental chair servicing
Dental chair servicing: how often, what it covers and when to refurbish
The chair is the one piece of equipment whose downtime maps directly onto cancelled appointments. A compressor fault degrades the whole practice a little; a chair fault takes a surgery out entirely. That asymmetry is worth remembering when deciding how seriously to take a servicing schedule.
How often does a chair need servicing?
Most manufacturers recommend an annual service, with preventive inspections typically falling every 6 to 12 months depending on the manufacturer and workload. A single-surgery chair seeing normal clinical use sits comfortably on an annual visit; a chair running extended hours in a busy multi-surgery practice may justify six-monthly attention.
The schedule that matters is the one for your specific model — it is also what protects any manufacturer warranty. If you do not know what your chair's schedule is, that is worth finding out before a fault does it for you.
A service typically takes around an hour per chair, which is the practical argument for doing it: it can be scheduled before morning surgery or over lunch, costing no clinical time at all. The reactive alternative — a failure mid-list — costs the rest of the session.
What a proper chair service covers
A dental chair is really several systems sharing a frame: movement, delivery unit, water, air, and electrics. A service that only looks at one of them is not a service.
| System | What should happen |
|---|---|
| Movement & base | Lift and tilt through full range; motors or hydraulics checked; safety cut-outs tested; base and linkages inspected and lubricated |
| Foot control | Function and cable condition checked |
| Delivery unit | Handpiece tubing, couplings and holders inspected; air and water delivery checked at correct pressures |
| Water system | Waterlines, bottle system and valves checked for leaks and flow |
| Suction connections | Chair-side valves, hoses and filters checked |
| Cuspidor & cup fill | Function and drainage checked |
| Light | Operation, positioning arms and intensity checked |
| Upholstery & covers | Condition noted — splits matter for infection control, not just appearance |
| Electrics | Supply, switches and controls checked |
| Documentation | Written report of work carried out and anything flagged for attention |
Split upholstery is an infection-control point, not a cosmetic one. A tear in a seam is a surface that cannot be effectively disinfected. It is the kind of thing an inspection notices, and it is fixable — re-upholstery is routine and far cheaper than it looks.
Common chair faults
Not raising or lowering
Check the simple things first: the mains isolator, and whether anything under the base plate has triggered the safety stop — chairs are designed to halt if the base is obstructed, and a dropped instrument or a foot control cable can be enough. Beyond that it is usually hydraulics, a lift motor, or the foot control itself — engineer territory.
Losing position or drifting
A chair that sinks slowly under load usually points at hydraulic wear. Worth reporting early — it tends to worsen, and it is easier to fix before it fails completely.
Handpiece problems at the chair
Low pressure, moisture in the air, or inconsistent water at the handpiece often is not the chair at all — it is the air supply behind it. If more than one surgery is affected, look at the compressor before blaming the delivery unit.
Weak suction at the chair
If it is one chair, suspect the chair-side filters, valves and hoses. If it is every chair, it is the suction system.
Refurbish or replace?
Chair bodies are generally built to outlast their soft parts. Upholstery, tubing, valves and delivery unit components can all be renewed — often transforming a tired chair at a fraction of the cost of replacement.
The honest decision factors:
- Mechanical condition. If the lift system and frame are sound, refurbishment is usually on the table.
- Parts availability. Once a manufacturer stops supporting a model, every future fault becomes a gamble. This, more than age, is what retires chairs.
- How the surgery works now. If the chair's layout fights the way you actually practise, refurbishing it preserves the problem. That is a surgery design conversation rather than an engineering one.
Weighing it up? Tell us the make, model and age and what is wrong with it. We supply, install, service and refurbish chairs, so we can give you both numbers — repair and replace — and you can decide with real figures. Ask us.
Frequently asked
How often should a dental chair be serviced?
Annually for most chairs, six-monthly where workload justifies it — and always to your model's own schedule.
How long does a service take?
Around an hour per chair, so it can usually be scheduled without losing clinical time.
My chair will not move — what do I check first?
The mains isolator, and anything under the base triggering the safety stop. After that, call an engineer.
Is refurbishment worth it?
Often. Sound mechanics plus tired soft parts is the ideal refurbishment case. Poor parts availability is what tips the decision to replacement.
Chair due a service — or causing trouble?
We service, repair, refurbish and install dental chairs for practices across the UK, scheduled around your list so it costs you no clinical time. For breakdowns we aim to attend the same day wherever we can get to you.
Request a quote or site surveyGet the compliance updates, not the marketing
New guides on servicing intervals, statutory obligations and the faults that take a surgery offline — sent when we publish something worth your time, not on a schedule.