Timing Belt & Cambelt Replacement in Sunbury-on-Thames
The timing belt keeps the crankshaft and camshafts in step. On many engines, if it fails the valves and pistons can collide — turning a planned maintenance job into a major engine repair.
We replace timing belts and cambelts with the correct kit for your engine, check the right interval for your vehicle and advise on related components such as the water pump.

Timing belt and cambelt — the same thing
‘Cambelt’ and ‘timing belt’ describe the same component: a toothed rubber belt that drives the camshafts. Intervals are set by age and mileage, whichever comes first, and vary widely between engines.
Belts can fail with little or no warning, which is why replacement is preventative rather than reactive.
What we check
- Correct interval for your engine (time and mileage)
- Belt, tensioner and idler condition
- Water pump condition and leaks
- Auxiliary belt condition
- Oil leaks contaminating the belt area
What we can do
- Timing belt kit replacement
- Water pump replacement where driven by the belt or recommended
- Auxiliary belt replacement
- Timing verification after fitting
How it works
The process
- 01
WhatsApp us the registration and mileage.
- 02
We confirm the interval and the correct kit.
- 03
We replace the belt and associated parts, verifying timing.
- 04
We record the work for your service history.
Why The Factory
Main-dealer capability, independent service
A Master Technician-led workshop with seven mechanical ramps, a dedicated MOT ramp and dealer-level diagnostics. Faults are shown to you and additional work is quoted before it goes ahead.
We stand behind the work we carry out. Parts and workmanship are covered in accordance with your statutory rights and any applicable manufacturer or supplier warranty. Please ask us for details relevant to your repair.
- Manufacturer-correct timing procedures
- Experience across all makes
- Genuine or OEM-quality kits
Free local collection & return
Available by arrangement within approximately five miles of our Sunbury-on-Thames workshop. Further afield? Just ask us.
Courtesy cars
Courtesy cars are available, subject to availability.
FAQs
Timing Belt / Cambelt Replacement: your questions answered
Is a cambelt the same thing as a timing belt?
Yes. Both terms describe the toothed belt that keeps the engine’s crankshaft and camshafts synchronised.
When should my timing belt be replaced?
Intervals vary by engine and are set by both time and mileage. Send us your registration and we’ll check the correct interval.
Can a timing belt fail without warning?
Yes. Belts often look acceptable until they fail, which is why replacement is based on interval rather than symptoms.
What can happen if a timing belt breaks?
The engine stops. On many engines, pistons and valves can collide, causing significant internal damage.
Should the water pump be replaced with the timing belt?
Where the belt drives the water pump, replacing them together is often recommended because the labour overlaps. We’ll advise for your engine.
Can you check the correct interval for my vehicle?
Yes — send us your registration on WhatsApp.
Related services
Wet Belt Replacement
Inspection, diagnosis and replacement of belt-in-oil timing systems.
Timing Chain Replacement
Diagnosis of chain stretch, rattles and timing faults — and correct replacement.
Radiator, Water Pump & Thermostat
Replacement of key cooling components, including electric pumps.
Car Servicing
Servicing to the manufacturer schedule for all makes and models, petrol to full EV.
Need help with timing belt / cambelt replacement?
Send your registration and a quick description on WhatsApp, or call the workshop.
The Factory, Harris Way, Sunbury-on-Thames TW16 7EL