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Areas We ServiceBrake Booster Replacement
A brake pedal that has become very hard to push, often with a hiss behind it, points to a failed brake booster.
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Pricing
Pricing varies based on your vehicle
Service Info
Typical Duration 1 hour
Diagnostic Required Yes
We test vacuum supply, the non-return valve and, on diesels, the vacuum pump, replace the booster, then check pedal effort and travel on a road test.
Skip the garage, our master mechanics come to you
At your home or office
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6-month, 6000km warranty
The Most Trusted Mobile Brake Booster Replacement
If the brake pedal has become very hard to push and the car takes far more effort to stop, the brake booster is the usual cause. You may also hear a hiss from behind the pedal when you press it. The brakes still work, but without assistance.
Why Choose Our Mobile Brake Booster Replacement Services?
A failed booster does not stop the car braking, it makes braking much harder, which is dangerous in an emergency stop where pedal effort matters most. Drivers often adapt to it gradually and do not realise how much stopping distance they have lost.
Why We’re the Best Choice for Mobile Brake Booster Replacement
Our mechanics test the vacuum supply and the non-return valve before condemning the booster, because a perished vacuum hose or a failed one-way valve produces identical symptoms for a fraction of the work. On diesels the vacuum pump is checked as well.
Why It Matters
A failed booster removes the assistance that makes the brakes usable. Pedal effort rises sharply, and drivers adapt without noticing the lost stopping distance.
When to Replace
Safety Warning
Frequently Asked Questions
- What does a brake booster do?
The brake booster uses engine vacuum to multiply the force you apply to the pedal, so light pedal pressure produces strong braking. Without it the brakes still work, but need far more leg effort to achieve the same stopping power. - What are the symptoms of a failed brake booster?
A brake pedal that has become very hard to push is the main symptom, often with a hissing noise from behind the pedal when braking. Stopping distances increase noticeably because most drivers cannot apply enough force unassisted. - Is a hard brake pedal always the booster?
No. A perished vacuum hose, a failed non-return valve, or on a diesel a failing vacuum pump all produce a hard pedal, and all are cheaper to fix. These are tested before the booster itself is replaced. - Can I drive with a failed brake booster?
The car will stop, but it takes far more pedal effort, and the difference matters most in an emergency. Drivers often adapt gradually without realising how much stopping distance they have lost, which makes it more dangerous than it feels. - Why do diesels lose brake assistance differently?
Diesel engines do not generate strong intake vacuum, so they use a separate engine-driven vacuum pump to supply the booster. When that pump wears, brake assistance fades even though the booster itself is fine.