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    Glass Definition

    4.6 (122 reviews)
    Closed 8:00 am - 5:00 pm

    Services - Glass Definition

    Door framing

    Door installation

    New installation

    13 More Services

    Glass door installation

    Glass fixtures or furnishing installation

    Glass shower enclosure installation

    Mirror installation

    Glass and window repair services

    Glass repair

    Mirror repair

    Window repair

    Glass and window replacement services

    Glass door replacement

    Glass fixtures or furnishing replacement

    Glass shower enclosure replacement

    Mirror replacement

    Glass Definition Photos

    Recommended Reviews - Glass Definition

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    Reviews With Photos

    Brand new shower leaking, company refusing to fix it. Want to charge for a service call.
    Michael S.

    I have used this company before and honestly in the beginning they were very good and professional. The owner Andy recently lost many of his good installers and is now trying to learn how to install glass with his current installers, which are not only sloppy but don't do the job properly. Yes, the owner does not know how to install. After our client used his shower 72 hours after the shower door was installed we came across leaking. Everyone who reads this please note the company installed two shower doors on two different bathrooms. Upon noticing leaks in the master bath, I had looked into the finish product of the second bathroom shower door. Note the crew had to come back because the didn't install it plumb and blamed our tile installers. After they came back and brought a level they saw it was their fault. The second bath silicone seal was done sloppy, and there was gaps! And the icing on the cake??? The hardware we selected was black that came with black screws. The installers did not properly screw the hardware in and ruined the screws. But no worries, w little sharpie should do the trick!! pictures attached. When I asked Andy to please address this, he asked me to sign receipts of my already paid payments and said he would be charging for service call. I respectfully declined which was followed by Andy cursing at me for no reason. I have text messages of our entire conversation in which I sent photos of all the bad areas and he told me he won't do anything until I sign the receipt. He even threatened to put a lien on my clients house, which they are aware of after I showed them the text messages, and they will go directly to the CSLB to file a complaint if that ever happens. I hope this review helps the business owner Andy acknowledge customers and quality come first.

    Master bathroom steam shower ... glorious floor to ceiling glass!
    John J.

    I'd give Glass Definition 10 stars if I could! After installing 5 frameless shower enclosures and 2 frameless glass balcony railings (with one more on the way!) to our just-renovated home, we couldn't be happier. Andy was so friendly and knowledgable right from the first call. He inspired confidence! He came out right away to measure in order to give accurate quotes, and then final exact glass measurements once all of our tile was in. His team arrived and they were professional, quick, and courteous. The glasswork is incredible and impeccably done, and all that have visited our home have been extremely impressed. We have a floor to ceiling steam shower in the master bathroom, and it is stunning. All the other shower/baths look fantastic as well, and Andy paid attention to detail including what direction the shower door should swing as it opens. I was very appreciative of that! On top of all this, his wonderful wife Teresa handles the back office and was in constant communication with me throughout the entire process, which was so helpful and reassuring. I would not consider any other company for glass needs! Thank you Andy & Teresa!

    L P.

    I've used Glass Definition twice for frameless glass shower door installations and each job went flawlessly. Competitive price, professional work, easy communication, and I got exactly what I wanted. I'd definitely use them again if I ever need glass work done.

    Main bath
    Karen O.

    Andy and Teresa are so nice and very communicative. They offer a great product and a reasonable price. The glass is just beautiful. We chose a frameless door with nice hardware. They did such a great job on our master bathroom so we hired them again to do our main bathroom. I highly recommend.

    Mirrored wall surrounding my wife's new fitness barre (and the husband taking the photo)
    Joe M.

    On a Friday I was in search of a mirror to surround a ballet/fitness barre set up in my wife's home gym. I needed this done right away and it was Mother's Day weekend. Got several quotes and to my rescue came Andy the knowledgeable owner of Glass Definition. He came right out to my home and we discussed what I wanted and he explained how he could accomplish it. He gave me a terrific quote and told me his guys would be out Monday AM. His guys came out Monday morning (on time) and perfectly executed the job. The mirror was installed exactly as I had wanted by Andy's crew of 2. Four hours later they left the place spic and span. I highly recommend Glass Definition. You'd be lucky if they are available.

    Old Panel
    Dylan C.

    I needed to replace a few shower glass doors with clear glass. I called up Andy, and he was patient with me, describing what he could do, and how much time it would take. Once we agreed to a price, he came out and made critical measurements. After a couple weeks, the pieces were ready, and his team came out and installed the panels very quickly and very well. I can't recommend these guys highly enough!

    Downstairs guest bathroom

    After reading their Yelp reviews we called Glass Definition and Andy came out promptly and measured and gave us his recommendations for options for our three shower enclosures. We received a very detailed quote from him later that day. Once we gave approval our enclosures were ready to install one week later. Three men arrived when they said they would and installed our doors. We are very happy we used Glass Definition. Andy was very professional knowledgeable, and after months of making decisions on our bathroom remodels we really appreciated his suggestions. Before contacting Glass Definition we visited a couple local glass businesses but weren't excited by what we saw. Glass Definition is definitely a level above the others. We love our bathrooms and would definitely recommend giving Andy a call!

    Frances R.

    We called Glass definition, primarily, for our glass railings. They did an excellent job that we made them do the shower and toilet door. The employees are very nice and they do thE job fast and clean.. i would definitely recommend them.

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    2 months ago

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    1 year ago

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    5 years ago

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    Andy P.

    Thank you for the review we pay

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    4 years ago

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    Andy P.

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    Andy P.

    Thank you for this review we appreciate very much

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    3 years ago

    Andy and team are very professional. They are trustworthy and honest. I use Glass Definition for all my Glass projects. I highly recommend.

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    6 years ago

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    7 years ago

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    Andy P.

    Thank you very appreciate

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    10 years ago

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    4 years ago

    My stationary glass door was completely fogged up. They replaced it really fast I would definitely recommend them.

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    7 years ago

    Rude customer service by the ​owner over the phone. Thanks for letting me know up front not to hire you!

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    Page 1 of 4

    Ask the Community - Glass Definition

    Good afternoon ... I want to know the price of a glass railing of 20 'long x 42 "high I want it with the aluminum base and stainless steel cover ... I don't require handrails, I want it to look all in glass, thank you?

    Around 7k installed

    View All 13 Questions

    Review Highlights - Glass Definition

    Also, they arrived perfectly on time to my appointment, Andy was knowledgeable, kind, and assuring!!!!

    Mentioned in 73 reviews

    Read more highlights

    American Deluxe Windows and Doors - American Deluxe Windows & Doors Project

    American Deluxe Windows and Doors

    (411 reviews)

    North Hollywood

    2026-04-23: I have used this company twice now. Both times have been fantastic. This time they…read morewent out of their way and accommodated us to make our project come out great. I couldn't be happier. I guess my review will include pictures from both projects.

    The team of professionals at this company is honest, considerate, open to questions, and deliver…read morehigh quality product. We needed an accessible shower installation for our ADU. Michael Crooks was very responsive as a company rep and everything he quoted was delivered just as he said. The quality of the shower is excellent and we love the Koehler fixtures. We chose black on white to assist those with visual deficits and really like how they turned out! The fold down seat is also a plus for those with endurance challenges! The demolition andinstallation team of Jose, Gabriel and Jairo could not have done a better job! They were timely, efficient and professional. They demolished the shower and tub one day and took away all the debris. Then, the next day, they built the frame and installed the new walk in shower exactly as we requested. They were pleasant to have on our property and we're considerate in where they set up their workstation and parked their trucks. We did have a challenge posed by the installation day with company coming to visit us... And they worked out a mutually agreed upon date that met our needs. I highly recommend this company.. ask for this team of installers! You won't regret it!!

    Frontier Windows & Doors

    Frontier Windows & Doors

    (491 reviews)

    Canoga Park

    Originally, we were referred by our cousin, she purchased a sliding door with built in blinds and…read moreshe was extremely happy with the product and service provided. We have now bought a sliding door and three windows for our house. Communication has been great with John and our Milgard products look amazing!!!

    We recently completed our window project with Frontier Windows and had an excellent experience from…read morestart to finish. The entire process was smooth, organized, and professional from A-Z. Jon, the owner, was amazing to work with throughout the whole project. He was responsive, honest, patient, and made sure everything stayed on schedule and ran smoothly. You can tell he genuinely cares about his customers and takes pride in the quality of work his company delivers. The installation crew was also fantastic -- professional, respectful, clean, and detail-oriented. They showed up on time, protected the house during installation, and paid attention to the small details that really matter. The finished product looks incredible and completely elevated the look of our home. What really stood out was the communication and overall customer service. There were no surprises, everything was explained clearly, and the entire experience felt stress-free. It's hard to find companies today that combine quality workmanship with great customer care, but Frontier Windows absolutely delivered. Highly recommend Frontier Windows, Jon, and his team if you're looking for a smooth, professional window installation experience.

    RELI Windows & Doors - Living Room Sliding Door and Kitchen Window Installed

    RELI Windows & Doors

    (18 reviews)

    Sherman Oaks

    I don't usually write reviews, but RELI truly deserves it…read more We hired RELI for a full window replacement project and from the very first interaction, the experience was completely different from every other company we spoke to. Unlike other contractors who were vague, pushy, or tried to upsell us immediately, RELI was transparent, patient, and incredibly knowledgeable. They explained exactly what products we were getting, why those products made sense for our home, and how pricing actually works in this industry. No mystery markups, no pressure tactics, and no games. Everything was clearly laid out upfront, which immediately built trust. The pricing was extremely competitive, especially considering the quality of the windows and the installation. We were quoted significantly higher by other companies for comparable (or worse) products. RELI clearly knows how to eliminate unnecessary overhead and pass the savings to the customer. Installation was smooth and professional. The crew showed up on time, protected our home, cleaned up thoroughly, and paid attention to the small details that most contractors overlook. The final result looks amazing -- our home is noticeably quieter, more energy efficient, and just feels upgraded. What impressed me most is that RELI actually cares about doing things the right way. You don't feel like just another job. They stand behind their work, communicate clearly, and follow through on everything they promise. If you're considering new windows or doors and want honesty, quality, and fair pricing without the usual contractor headaches, RELI is the company you want. I recommend them without hesitation and would absolutely use them again.

    My experience with Reli was excellent from start to finish. After my initial inquiry, Territory…read moreManager Monica reached out and guided me through the process with patience and professionalism. As someone with no prior experience replacing home windows, I appreciated how friendly and informative she was, answering all of my many questions. I loved the convenience of handling everything from home--no need to visit a showroom. Monica was responsive to my texts, quickly updated my quote whenever I changed my mind, and ensured the final measurements were taken before placing the order. The windows arrived promptly from the manufacturer, and installation was scheduled without delay. The crew was courteous, knowledgeable, and completed the entire project in just one day. After shopping around with several companies, I ultimately chose Reli for their competitive pricing, quality product, and outstanding service. I couldn't be happier with the result and highly recommend them.

    Lucero's Windows and Doors

    Lucero's Windows and Doors

    (26 reviews)

    We'd been having issues with our entry door for a while. The door is more than 80 years old. And…read morenow, it had started rubbing against the side wall and no longer sat evenly in the frame. It was clear it was time for a replacement. Before choosing James, I got a quote from a very popular windows and doors company in Orange County. James, the owner of Lucero's Windows and Doors, not only offered the best price but was also extremely responsive. He mentioned that he previously worked as a Home Depot installer, which gave me confidence that he was properly trained. I was initially cautious because of the low number of reviews, but the consistent perfect scores from other customers made me optimistic. Now, after working with him, I can confidently say that Lucero's Windows and Doors is the real deal. Because our home required a custom-sized door, James came out twice to take measurements. After about two weeks, the custom entry door arrived, and he completed the installation in a single day. He told me our home was one of the oldest he's worked on, and the walls were very different from newer builds. Despite the challenges, he made everything fit perfectly, and the final result looks fantastic. We no longer feel a draft under the door, and it swings smoothly without any issues.

    James did a great door switching our 4 doors. Before confirming the job with him, he went back and…read moreforth with me to find the front door I'm looking for. Very communicative and on top of things even before we confirmed going with him. The price. James's price is competitive, we also reached out to other door vendors in the area, his price came back within our budget. He's also very knowledgeable about the product and can tell he's been in the industry for a long time. It took James 2 days to get all doors installed. He was courteous and mindful getting work done. We had one door that had some problem with our floor not leveled, he assured us it would be resolved. For the utility door, the quality is above our expectation as an exterior door that not guest facing, and he complimented the hardware for us without charging since our own hardware is garbage. My partner is a very peculiar person with details. He's very happy about James work that alone speaks his work quality. I would definitely hire James again if we have door or window job, would take his referral for other jobs needed!

    Glass Definition - glassandmirrors - Updated May 2026

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