Benefits of replacing your window at Ralarsa
Because every detail matters when it comes to your safety
Personalised service and experience make us stand out. At Ralarsa, we don’t just replace glass—we handle everything so you don’t have to worry about a thing.
Lifetime Warranty Certificate
We provide a lifetime certificate guaranteeing the correct installation of the glass.
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Trusted by insurers
Our services are backed by the leading insurance companies.
Amplio Stock
Ralarsa dispone de un centro logístico con uno de los más amplios stocks de piezas de vidrio.
Insurers
Insurance companies trust us for our experience, professionalism, and service quality.
Workshop network
Disponemos una amplia red de talleres en toda España y alianzas claves por toda Europa.

Find your nearest Ralarsa workshop
Just a few clicks away from driving safely again
Wherever you are, there’s a Ralarsa centre nearby. Check our workshop network now and book your appointment online to replace your car’s side window with full confidence.
Common questions about replacing a car side window
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How much does it cost to replace a side window?
The price depends on the vehicle’s make and model, but if your insurance policy includes glass cover, in most cases the cost is €0 for you—we handle everything directly with your insurer.
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Can I drive with a broken side window?
It’s not recommended. It poses a safety risk, reduces visibility, increases the chance of theft, and you could even be fined.
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Can it be repaired, or does it need to be replaced?
Unlike windscreens, side windows can’t be repaired. They must be replaced because tempered glass breaks into small pieces upon impact.
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How long does it take to replace the window?
In most cases, we can do it the same day we receive the glass in the workshop. Thanks to our logistics hub, we can deliver it within 24 hours anywhere in Spain.
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What about the broken glass inside the car?
Our technicians perform a full interior cleaning to remove any shards left on the seats, floor, or inside the door mechanisms.
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Can I leave the car and pick it up later?
Yes, you can leave your vehicle at the workshop and we’ll call you when it’s ready. You can also book online and we’ll give you an exact time to avoid waiting.
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Can I come without an appointment?
We recommend booking an appointment to guarantee immediate availability of the glass, but you can also come by and we’ll assist you as soon as possible.
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Do you also check the window mechanism?
Yes, we take the opportunity to check that the manual or electric system is working correctly. If we detect any issues, we’ll let you know.

The structural importance of your car’s side windows
More than just a window: a key element in your vehicle’s safety
Although they may seem like secondary elements at first glance, car windows play a much more significant role —in every sense— than we usually imagine. Especially structurally, as they’re an active part of the vehicle’s bodywork.
The windscreen supports the roof and is essential for proper airbag deployment, while the side windows also strengthen the car’s structure. In fact, automotive glass can account for up to 30% of a vehicle’s structural resistance. So when one breaks, it’s not just an aesthetic or comfort issue — it’s a matter of safety.

What type of glass is used in car side windows?
Tempered glass: safety through controlled breakage
Side windows are made of tempered glass, a material specifically designed to shatter into many small, rounded pieces upon impact. This helps prevent serious injuries to passengers, unlike regular glass.
However, because of this shattering property, a broken side window cannot be repaired—only replaced. That’s why trusting qualified professionals makes all the difference.