
Our Commitment to Quality and Service
At Diablo Glass, we specialize in providing a wide range of glass services, including heavy glass frameless shower doors, bath and shower sliders, and various types of shower doors. Our expertise extends beyond showers to include painted glass, which can be used for numerous applications, enhancing the aesthetic appeal of any space. We also offer mirrored walls and wardrobe doors, perfect for adding a touch of elegance and functionality to your home. Whether you want to upgrade your bathroom or add sophistication to other areas, our glass solutions are designed to meet your needs.

Window & Mirror Services
In addition to our interior glass services, we excel in window and patio door installation, ensuring that your home is both beautiful and energy-efficient. Our team is skilled in patio door repair, providing prompt and reliable service to restore functionality and security to your home. We also offer glass and mirror replacement services, ensuring that any damaged or outdated glass in your home is swiftly and effectively replaced. With our commitment to fast and reliable glass replacement, you can trust us to handle all your glass needs with precision and care.

Custom Glass & Pet Doors
Our expertise isn't limited to large installations; we also offer custom glass solutions such as table tops and cabinet glass. Whether you're looking to protect your furniture or enhance the look of your cabinetry, our glass options are tailored to fit your specifications. Additionally, we provide custom pet door installation, allowing your furry friends easy access to the outdoors while maintaining the integrity and style of your home's design. Our quality installation services ensure that every project, big or small, is completed to the highest standards.
Trusted Since 1957
As a true leader in the shower door industry, we have been proudly serving the downtown Concord area since 1957. Our collection of frameless shower enclosures is available in a variety of finishes, allowing you to choose the perfect match for your bathroom's decor. Each installation is carried out by our team of seasoned craftsmen, whose years of experience guarantee a flawless and durable result. In addition to shower enclosures, our comprehensive range of glass services ensures that we can meet all your glass-related needs with expertise and efficiency.
Serving the East Bay
Diablo Glass boasts over 50 years of experience, serving a wide array of fine cities including Alamo, Antioch, Blackhawk, Clayton, Danville, Diablo, Dublin, Lafayette, Martinez, Moraga, Pacheco, Orinda, Oakland, Pinole, Pittsburg, Pleasant Hill, Pleasanton, San Ramon, Orinda, Walnut Creek, and more. Our extensive experience in these communities has earned us a reputation for excellence and reliability. We are dedicated to providing top-notch service and high-quality products to every client, ensuring satisfaction with every project.
Quick Estimates
For those interested in receiving an estimate for any of our services, we offer convenient options to get in touch. You can give us a call to speak directly with our knowledgeable staff, who will be happy to assist you with any inquiries. Alternatively, you can email us via our quote request form, providing a simple and efficient way to receive detailed information about our offerings. Whether you're planning a major renovation or a small upgrade, contacting us is the first step towards achieving your glass and mirror goals with precision and style.
FAQ's
Felix Sandoval started the company in 1957 with the determination to serve his customers with top-quality products and service! His son, Gary Sandoval, has owned it since 1982. He still carries the same determination for perfection and strives to set industry standards for the best customer service and top quality in product as well as installation. We believe every customer should become a return customer. Coming back over the years always come in and out with the feeling of great satisfaction with the product and the service they have received from the staff of Diablo Glass.
Here at Diablo Glass, we are not done until your job is complete, and you are 100% satisfied!
Safety glass comes in different forms: tempered and laminated. Tempered glass is designed to shatter into tiny pieces rather than large shards, giving less of a chance of serious injury. Laminated glass is made up of two individual panes of glass bonded together by PVB resin. This resin prevents the glass from falling apart when broken and makes it very difficult to break through.
No. Tempered glass is designed to shatter into tiny pieces when broken, and will do so if cutting is attempted.
Tempered glass is manufactured with heat to strengthen it, so it does not break into jagged pieces. This glass is typically used in certain parts of your home, varying from county to county.
Use a Bic lighter and hold about 1” from the outside of the glass. If you see four different shades of a blue tint, looking from the inside, it is probably low-E glass. It will probably take two people. Or if it has a blue or gray tint, it is probably low-E. There are several Low-E glass manufacturers. Please bring in a sample or have a technician from our company come to your home for a service call to determine which type of Low E it may be.
If your glass breaks into tiny pieces instead of large, sharp pieces, it is tempered and is considered safety glass. Tempered glass also has a small logo the size of a nickel in one of the corners that says safety glass.
Double-pane windows are two pieces of glass sandwiched together and vacuum sealed at a factory, specially ordered on most occasions. Often “fogging” up, or losing their seal and filling with condensation. When such happens, the pane has to be replaced, and a technician or your contractor should always measure; there is little margin for error. There are such things to account for, like the overall thickness. A single pane is one piece of glass and is easily determined; if it breaks, there is only one piece.
A quarter is exactly one inch. A dollar bill is always 6.” A telephone book is 12.” When measuring a window, you should measure the daylight (what you can see). Single pane, unless tempered, will be cut onsite. Double pane has to be measured and ordered with a quick turnaround time. If you are measuring approximate shower dimensions for quote purposes, wall to wall. If there is an angle, the degree is helpful; there are two common: 90 degrees and 135 degrees. Please measure the return for a more accurate quote.
Tub sliders are fairly simple, and we can leave the header and track slightly longer for job site cuts. There are standard heights. Pivot doors, and doors with panels are more complicated, and we recommend you pay the extra money to have a professional measure it and install it, considering it also comes with a one-year warranty. Frameless shower doors are tricky; there is little to no tolerance for error. We always recommend that we measure and install it. If you insist, we will order your glass, but we will not be responsible for any inaccuracies in your measurements.
Our showers are designed to prevent water leaks under normal water conditions when properly installed. Extreme water conditions, such as children having a water fight, are excessive. It can result in leaks. Shower head nozzles should not be sprayed directly at your enclosure during cleaning.
Towel bars are not grab bars!
Grab bars are available in many finishes. Your towel bar is not designed to support your weight. You should never hang from or stand on any of our enclosures.
Do not use abrasive or acid-based cleaners when cleaning your enclosure. Such can damage the metal or glass. We suggest a non-abrasive scotch brite pad and soft scrub. Daily use of a squeegee is always recommended! The polymer treatment is highly recommended.
Like your skin, glass has pores or is “pitted.” The hard water spots adhere to the glass and etch the glass. People ask, “How do I clean the hard water spots off my shower glass?” Often, it is stained. The glass sometimes cannot be cleaned. When buying a new shower door, we always recommend our polymer sealant. The sealant lasts for over three years. It seals the pores of the glass, preventing the glass from being stained from soap scum, hard water, and other debris. It is not “no maintenance.” It is “low maintenance.” We always recommend that you regularly squeegee your shower.