High-Performance Energy-Efficient Window Installation in Los Angeles

Charles from Landmark was great to work with and handled our tight project budget perfectly. We hit a snag with the commercial glass door installation last week, so I gave them a call. Charles is always available on the phone and remained super patient with our shifting construction schedule. Their team provides high-quality results and truly excellent customer service. I highly recommend them for any large-scale commercial glass or window needs.

We purchased a retail space in Corona and needed a major remodel to modernize the storefront. After interviewing several companies, Ezra arrived and immediately started sketching out custom concepts. We loved his vision for a new storefront glass door repair and replacement project. He also designed sleek glass office partitions that completely transformed our interior workflow. The entire project took about 2.5 months, and we stayed right on our original budget. Thank you, Ezra!

These guys from Landmark Energy Upgrades are amazing!!! They were sincere, honest and knew what he was talking about. This guy knows more about window installation than anyone I've ever encountered. He gave me a fair price for the work and we agreed to get started. When the crew showed up they were friendly and efficient. They did a great job!

I absolutely recommend this team for professional glass work! We had a terrific experience with Landmark regarding a massive home window repair project across our entire residential complex. Charles and his crew were incredible and handled the window installations with extreme precision. They take great pride in their craftsmanship, and the quality of the glass seals really shows. It was a seamless experience from start to finish. We will definitely be using them again.

Great service and professional people to deal with. Landmark recently handled a complex commercial glass installation for our main lobby. The work was expertly managed by David and his specialized crew. We originally contacted them to see how we could reduce our monthly energy bills. They suggested replacing our outdated panes with high-efficiency glass to make the building more energy-efficient. The transformation is amazing, and our utility costs have already started to drop significantly.

The commercial property we recently purchased was in bad shape and required a total glass upgrade. We hired Landmark to manage the remodeling project and bring the building up to modern standards. Ezra and Charlie did an amazing job managing the commercial glass door installation and interior glasswork. They ran the project efficiently and kept the site professional throughout. Now that the glass office partitions are finished, we are extremely pleased with the entire experience. Magnificent company!