Why Are My Brakes Squeaking?

Squeaky brakes can be annoying. But more importantly, they can be a warning sign.

While a bit of noise now and then isn’t always something to panic about, it’s worth understanding what might be causing it.

We’ll have a look at the most common reasons your brakes might squeak, what you can do to fix it, and when it’s time to book in with a garage for a check.

Common Causes of Squeaky Brakes

Brakes squeak for several reasons—some harmless, others more concerning. Here are the top culprits:

1. Worn Brake Pads

Brake pads are designed to wear down over time. Many include a built-in metal wear indicator that emits a high-pitched squeal when the pads get too thin.

If you hear a persistent squeak while braking—and especially if you see a dashboard warning light—it’s likely that it is time for a replacement.

2. Moisture and Surface Rust

Overnight rain, snow, or damp air can cause rust to form on your brake discs.

When you drive off in the morning, this rust gets scraped away, often with a brief squealing noise. If the squeaking is no longer present after using the brakes  a few times, moisture was likely the issue.

3. Dust, Dirt, and Debris

Brake systems naturally collect grime. Especially if you drive in dusty or muddy conditions. This debris can get caught between parts and cause squeaking.

A gentle clean—either at home or during a brake inspection—can fix this.

4. New Brake Pads Bedding In

New brakes can squeak during the bedding-in process. As they adjust to the shape of the disc.

This is normal and should go away after a few hundred miles.

5. Glazing from Overheating

If you regularly brake hard—such as on hilly roads or during aggressive driving—your brake pads can overheat and form a hardened, shiny surface called glazing.

Glazed pads can squeal loudly and lose effectiveness. These will likely need replacing.

6. Heavy Loads

Carrying a heavy load puts extra strain on your brakes. This added pressure can make them squeak, particularly under slow or prolonged braking.

If the noise disappears once the car is unloaded, there’s usually no need for concern.

7. Low-Speed Braking

Sometimes brakes only squeak at low speeds, especially in stop-start traffic or car parks.

This is often caused by high-frequency vibrations and isn’t necessarily a sign of danger—but it’s worth monitoring.

How to Fix Squeaky Brakes

1. Inspect for Obvious Issues

If you feel confident and know what you’re looking for, check your brake pads and discs for signs of wear, rust, or embedded dirt.

2. Clean the Brakes

Brake cleaner sprays are widely available and can help remove dust or debris. Be cautious and wear protective gear—never use water or household cleaners.

3. Lubricate the Right Areas

Lubricating the back of the brake pad (where it contacts the calliper) can reduce vibrations.

Never apply lubricant to the front face of the pad or the brake disc itself.

When to Book a Professional Brake Check

It’s time to have them looked at if your brakes:

• Squeak consistently
• Grind or screech
• Trigger a warning light
• Feel soft or unresponsive

It’s important that you have your brakes inspected by a qualified mechanic. To make sure that you stay safe and avoid costly repairs further down the road. Pun intended.

Can You Prevent Brake Squeaks?

Yes—most of the time you can prevent your brakes from squeaking.

Here’s how:

• Drive smoothly. Avoid hard or unnecessary braking.
• Keep your car light. Remove heavy loads when not needed.
• Maintain regularly. Get your brakes checked annually or as part of your MOT.
• Replace pads early. Don’t wait until they’re like a wafer-thin mint.

Squeaky Brakes

A squeaky brake isn’t always dangerous—but it should never be ignored.

Whether it’s just surface rust or a more serious issue like worn pads or overheating, it’s always worth investigating.

Catching the problem early can save you money—and keep you safer on the road.