Yes, a sunroof can be added to many cars that did not come with one. Specialist shops cut an opening in the roof and fit a pop-up, spoiler or sliding unit. Whether you should is a different question, because it means permanently modifying a structural part of the car.
Types of aftermarket sunroofs
- Pop-up sunroofs are the simplest: a glass panel that tilts open at the back and can often be removed. They are the cheapest to install.
- Spoiler sunroofs tilt and slide back over the roof.
- Inbuilt (sliding) sunroofs slide between the roof and headliner, like most factory units. They need more space and work.
Cost depends on the type and the car, from a few hundred dollars for a basic pop-up to well over a thousand for a powered sliding unit. Quotes vary, so ask several installers.
Safety and structure
The roof contributes to the car’s stiffness and to occupant protection in a rollover. Professional installers reinforce the opening with a frame, but the result is not tested the way factory designs are. Many modern cars also have curtain airbags and wiring in the roof rails, and some have roof-mounted sensors or antennas, all of which limit where an opening can go. Some installers refuse to work on certain models for these reasons.
Leaks and noise
Factory sunroofs have drain channels and tubes that carry water down the pillars. Aftermarket units rely on seals and sometimes simpler drainage, and a poor installation can lead to leaks, wind noise and rattles. Choose an experienced installer who offers a written warranty on leaks.
Warranty, insurance and resale
Cutting the roof may affect the car’s warranty for related problems, such as water damage to electronics. Tell your insurer about the modification. On resale, an aftermarket sunroof rarely adds value and can put some buyers off, especially if it leaks.
Alternatives
If you want more light and air, a model with a factory sunroof or panoramic roof is usually a better choice when buying your next car. For a convertible feel, a used convertible may cost less than a quality installation. Otherwise, clean windows with a light-colored headliner and good ventilation can make a cabin feel brighter.
If you are thinking about other changes, our guide to car accessories covers upgrades that do not involve cutting metal.
