Rio Grande Valley’s Trusted Auto Protection Specialist
As a veteran- and family-owned shop, Black Diamond RGV delivers expert Auto Protection in Rio Grande Valley, TX.
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XPEL Certified Installer
Our technicians are trained and certified through XPEL, the manufacturer behind the paint protection film, window tint, and ceramic coating products we install every day.
Vehicle Paint Protection
The Standard for Vehicle Protection in the RGV
Plenty of shops in the Valley can hang a certificate on the wall. Fewer can back every install with a manufacturer relationship that gives the warranty real weight.
Sun Stoppers Authorized Location
As an authorized Sun Stoppers location, we carry the full lineup of XPEL automotive and architectural films, from paint protection to home and office window film.
That authorization matters for a reason most customers don't think about until something goes wrong: it's what makes the manufacturer's warranty valid. A film installed outside the authorized network doesn't carry the same coverage, no matter how good the installer is. Ours does.
Veteran Owned
Family Operated
Certified Protection
Precision Installation
Premium Protection
South Texas Experts
Vehicle Protection Specialists
Paint Protection Services
Our Auto Protection Services
Not every vehicle or property needs the same level of protection. We’ll review how you use your vehicle, how long you plan to keep it, and what you want to protect before recommending a solution. Whether that's a full-front paint protection film or commercial window film, here is what we offer across our Rio Grande Valley and Olmito locations.
Why Choose Black Diamond?
What Certified Protection Actually Delivers
A certification is only worth something if it shows up in the work. Here's what it looks like on your vehicle.
Documented Warranty Terms for Every Job
Our XPEL window film carries a manufacturer's lifetime transferable warranty, and our paint protection film is backed by a no-hassle warranty that runs for as long as you own the vehicle, no deductibles. If you sell the car, the coverage goes with it.
Real Installs, Verified Results Every Time
We deliver clean installs and real results. That means no rushed edges on your tint, no lifted corners on your PPF six months later, and a team that will walk you through the work before you drive off.
Heat and UV Protection You Can Measure
Our XPEL ceramic window tint blocks up to 98% of infrared heat and up to 99% of UV rays. In a region where summer temperatures regularly climb past 100 degrees, that's not a marketing line, it's the difference between a hot steering wheel and a cool one.
Beyond comfort, that UV protection is doing quiet, long-term work on your interior. Dashboards crack, seats fade, and leather dries out under years of direct South Texas sun. Blocking the UV rays that cause it is one of the more overlooked reasons customers come back to add tint after they've already had paint protection film or ceramic coating done.
Protect Your Interior From UV Damage
Dashboards crack, seats fade, and leather dries out under years of direct South Texas sun. Blocking the UV rays that cause it is one of the more overlooked reasons customers come back to add tint after they've already had paint protection film or ceramic coating done.
Client Reviews
Trusted by Daily Drivers Across the RGV
We've built this business one vehicle at a time, and most of our new customers come to us because someone they know sent them our way. Whether it's a first paint protection film install or the fourth vehicle a family has brought through our doors, we treat every visit the same: explain the process, answer the questions, and do the work right the first time.
Top Brands We Are Working On
Every Vehicle Gets Our Best
Whether it's a first paint protection film install or the fourth vehicle a family has brought through our doors, we treat every visit the same: explain the process, answer the questions, and do the work right the first time.
Areas We Served
Two Shops Serving the Rio Grande Valley
We operate from two locations so drivers across the Valley don't have to cross the whole region for an appointment. Our Rio Grande Valley shop sits at 2813 Zinnia Ave, and our Olmito location covers the Brownsville and Harlingen side of the RGV. Both locations install the same XPEL products to the same standard, and both are staffed by technicians trained under the same certification.
If you're closer to Rio Grande Valley, Edinburg, Mission, Pharr, or the surrounding communities, our Rio Grande Valley shop is the faster stop. If you're coming from Brownsville, Harlingen, San Benito, or Los Fresnos, Olmito is usually the shorter drive. Either way, you're working with the same shop and the same warranty terms.
About Black Diamond
Meet the Team Behind Black Diamond RGV
Black Diamond RGV was founded in 2020 by Jorge Castillo and his wife, Bella Castillo. What started as a mobile car wash grew, install by install, into a shop known across the Valley for paint protection film, window tint, and ceramic coating. Jorge still leads the shop floor today, and the team he's built brings the same attention to detail to a daily-driver truck as it does to a brand-new Tesla.
Completed Projects
The people doing the work matter more than the name on the sign
The people doing the work matter more than the name on the sign. Every technician who touches your vehicle has been trained to the same standard Jorge holds himself to, and that consistency, more than any single certification, is what keeps customers coming back with their second and third vehicle.
Veteran & Family Owned
10% Off for Veterans & First Responders
Black Diamond RGV is a veteran and family-owned business. We give back to the people who protect our community. Veterans and first responders receive 10% off our services as a thank-you for their service and dedication.
FAQ's
Still have Questions?
Frequently Asked Questions
Contact Black Diamond
Ready To Get Started?
Call us at (956) 558-2263 or request a quote online, and a member of our Rio Grande Valley or Olmito team will follow up to schedule your visit.
Get A FREE Quote Today!
Get a Quote for Your Vehicle Today
If you're weighing paint protection film against ceramic coating, wondering what window tint actually blocks, or just want your truck to look the way it did the day you drove it off the lot, start with a conversation. Get a Quote, and we'll walk you through the options that make sense for your vehicle, your budget, and how you actually use it.
We'd rather spend fifteen minutes explaining the difference between our film options than sell you the wrong one and have you back in a month unhappy. That's the certified-specialist approach we mentioned at the top of this page, and it applies just as much to the conversation before the work as it does to the install itself.



