Man of his word fast and efficient. Would definitely recommend to family and friends. Anyone in…read moreneed of a broken window fixed definitely reach out to the glass repair man!!

It's really tough to find good help these days and I needed a glass door replaced due to having…read moreshattered glass. After calling a number of companies, I chose to go with Victor because he was incredibly responsive, provided fair estimate, followed through on his word, came exactly at the time he predicted and was incredibly reliable.! Sometimes you take a chance on people and I'm very, very satisfied with Victor's timeliness, professionalism, and overall fast craftsmanship. To whomever is reading this please trust your gut and go with Victor.!

Our experience was excellent from start to finish! We replaced all the windows in our home 29…read morewindows and 2 sliding doors. The installation crew was very careful and even helped putting the blinds back up. They finished the job in two days and we couldn't be happier. We have already recommended this company to our neighbors who were also very impressed with the quality of our new windows.

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.

Very helpful even though they couldn't help. What I mean to say is that they couldn't service my…read moreexact needs, but they took the time to ask questions, learn what I needed, and then made some suggestions and referrals to point me in the right direction. The fact that they took time to do this, tells me they'd be a great company to work with. Integrity and sincerity goes a long way, and it's not something that can be taught. I'm sure you'd me in good hands with this company.

I truly cannot say enough amazing things about this company. I came in hoping to replace both my…read morebedroom windows and the sliding door in my living room, and from the very first interaction, I was met with nothing but warmth, honesty, patience, and professionalism. Nan was the one who initially educated me in the office, and she was absolutely incredible. She took the time to walk me through everything, answered all my questions with so much clarity and patience, and genuinely wanted me to understand what would -- and would not -- solve the issue I was experiencing. Her knowledge and care made me feel respected, informed, and never pressured. What completely blew me away was the honesty. Despite being more than capable of selling me new windows, they were the only shop that told me the truth: the change I was hoping for couldn't actually be achieved through window replacement alone. That kind of integrity is rare and speaks volumes about this company's values. Then there's Roy -- one of the owners -- who personally made the journey out to my home to further educate me. The fact that an owner would take the time to come out himself, explain everything in person, and make sure I fully understood my options is something you just don't see anymore. He was thoughtful, thorough, and incredibly generous with his time. And yes, fair warning -- Roy looks like he walked straight out of a magazine. Be prepared to be completely stunned by the presence of an actual god while receiving some of the most honest, professional guidance you'll ever get about windows. Even though they didn't make a sale this time, Lion has earned a customer for life. I will absolutely return for all my future window needs and recommend them to friends and family without hesitation. Please don't ever change, Lion. Whatever you're doing is working beautifully. Everyone was so kind, genuine, and knowledgeable. Huge gratitude to Nan for her education and patience, and to Roy for going above and beyond by coming to my home. I can't recommend this company enough and wish them nothing but continued success.

Needed a Milgard window replaced in our kitchen due to condensation between the dual panes…read more Frontier Windows was recommended by another glass vendor & I'm so glad we went with them instead of looking through that foggy window for another minute. It was super easy to schedule them. They came out to measure & then came out several days later once the replacement glass was ready to do the install. Left no mess behind & final charge was the same price as they originally quoted. Can't argue with that!

Frontier windows was the most legit window company to ever work with. Professional, honest,…read moretrustworthy, and super skilled at what they do. The team is excellent and makes sure that you are satisfied with the product, the service and the friendship! I would highly recommend everyone work with Frontier for any window or sliding glass door related needs! Look nowhere else! Thank you John

Long overdue! But this company exceeds my expectations when it comes to customer service. Many…read moreyears have passed since they have installed new windows to our home, and they still continue to help us by answering our questions and providing follow-up service and minor repairs. I highly recommend this business to anyone :)

Rob is very professional. He came in on time, patiently answered our questions and did his estimate…read moremeasurements. We are in the process of obtaining a quote.

This is the company you want to hire if you need help with your windows as their work is excellent…read more Three windows in my condo were completely stuck and could not be opened, which is a safety issue. I called and spoke with Erik and he was able to come out and assess the situation right away. He handled the repair himself and was able to devise an easy and practical manual lock solution for one of the windows that no longer locked on its own. His communication was fantastic. I was extremely pleased with the final result, the reasonable cost, and Erik's knowledge and professionalism. I will definitely call him again if I need any window or sliding door help and I will gladly recommend this company to others.

Pedro and Erik were great to work with. I have a busy schedule, and they were very accommodating…read moreand came all the way to Valencia to repair several windows at my condo. They arrived on time, which I really appreciate, and were professional, friendly, and easy to work with. One thing I especially like is that they're a small family business. When you call, you're dealing with a real person--not an automated system or AI. If they don't answer, it's usually because they're in the middle of a job, and they'll get back to you. I also felt they were very honest. They specialize in window repairs and will actually try to fix something rather than immediately tell you it needs to be replaced. If it can be repaired, they'll explain what they can do and work with you. If it can't, they'll be upfront about that too. They also repair and replace window screens, which is a nice bonus. It's great knowing I now have a reliable window company that services Valencia and the Santa Clarita area. The next time I have a window issue at any of our properties, Pedro and Erik will be the first people I call. Highly recommend them, and I wish them continued success with their family business!

Great and fast service. Very professional! They communicated well and I was pleased with the…read moreinstallation.

This window was falling off the top hinge and it was impossible to find anyone who could replace…read morethe part. Other folks told me they couldn't do it, or that I should contact the window manufacturer.. things that were basically not helpful. Olwin's folks came out to check the window, figured out which part I needed, got it ordered and installed within about a month. Thank you for giving me the peace of mind when opening this window!

The first step in earning my five star review is simple. Answer the phone! I reached out to several…read moreglass companies in my area and only Economy Glass got back to me, made an appointment, showed up on time and gave me a good quote. So in my book they are awesome. Jesse came out and took care of business in replacing my glass with all things considered a very fair price. I will definitely choose them for any glass problem in the future. And in fact I'm asking them to look at my 30 year old skylight for repair or replacement. I'm that confident in their services.

So friendly and welcoming even for a small job. They apologized it wasn't cheaper and worked to get…read morea lower price which we really appreciated. Very happy to support local businesses.

I consider this window company and also got quotes from over 8 different windows manufacturers and…read morecompanies We had 13 windows and a sliding door replaced. Most offered the same type of products just from different manufacturers. This company had a very reasonable prices which was lower than most of the competition with the same or better warranty and quality of product. They were able to customize the glass for a few of the windows for my situation having artificial turf. But the windows are still California compliant and passed inspection for the permit. The installation was completed in one day. They did a good job cleaning up after the work was completed. I recommended them to a few co workers at the office.

Amazing experience! Highly recommend! From measurement to install, their team did an amazing job.read more

I really can't rate them because they only do on-site work and o just needed to drop off a single…read morescreen for replacement. FWIW, the guy who answered the phone was really nice. If you're on or near the West Side and want to drop off a screen go to Anawalt on Pico. Not cheap but excellent quality.

Roger did a wonderful job replacing five window screens on my house this morning. He arrived on…read moretime and finished the work quickly and with great quality. Pricing is quite reasonable as well. Highly recommended!