Commercial Window Installation & Glazing in Los Angeles

Landmark Construction is the go-to contractor for commercial window installation in Los Angeles, the San Fernando Valley and Orange County. Whether it’s a storefront, apartment building, industrial building, hotel, or hospital, Landmark provides and installs high-quality commercial windows throughout Southern California.

  • Over a decade of experience with construction and glazing
  • Scheduling around your business
  • Removal & installation
  • Final inspection & walkthrough
  • Warranty & support

Call or email us now for a FREE estimate!

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Free Site Assessment

Fill out this form and one of our local LA glass experts will get in touch to schedule your free, no-obligation commercial window installation assessment. You can also just call us at (818) 319-4970






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    Types of Window Installations Landmark Offers

    Bullet-Resistant Glass

    UL-rated security glazing for banks, retail, government buildings, and any facility that requires forced-entry or ballistic protection. We proudly use high-quality bullet-resistant glass from trusted manufacturers such as Riot Glass

    Energy-Efficient Glass

    Low-E coated and insulated glazing that reduces heat transfer, cuts HVAC costs, and helps meet Title 24 energy code requirements.

    Tempered Safety Glass

    Heat-treated glass that shatters into small, blunt pieces instead of sharp shards — required in doors, storefronts, and high-traffic areas.

    Laminated Glass

    Two or more glass layers bonded with an interlayer that holds the pane together on impact. Ideal for storefronts, skylights, and sound reduction.

    Insulated Glass Units (IGUs)

    Double- or triple-pane sealed units with a gas-filled air gap for superior thermal and acoustic insulation year-round.

    Fire-Rated Glass

    Specialty glazing rated to contain fire and smoke for a specified duration. Used in stairwells, corridors, and fire-rated partitions.

    Tinted & Reflective Glass

    Reduces glare and solar heat gain while adding a uniform, modern exterior look. Popular for office buildings and storefronts.

    Decorative & Frosted Glass

    Etched, frosted, or patterned glass for privacy in offices and conference rooms without sacrificing natural light.

    Our commercial window installation process

    1. Site assessment & consultation

    We start with a free on-site evaluation of your building to assess existing window conditions, structural requirements and your goals for energy efficiency, security or aesthetics.

    2. Measurements & permitting

    Our team takes precise measurements and handles any required permits, ensuring your installation meets Los Angeles building codes and Title 24 energy standards.

    3. Removal & installation

    Our licensed crew removes existing windows and installs your new commercial windows with attention to weatherproofing, sealing and structural integrity.

    4. Final inspection & walkthrough

    Every installation is inspected before we consider the job complete, and we walk you through the finished work to confirm it meets your expectations.

    5. Warranty & support

    All of our commercial window installations are backed by our 100% satisfaction guarantee, with ongoing support if issues arise.

    100% SATISFACTION GUARANTEE

    At Landmark Construction, we pride ourselves on being a top Los Angeles glass company. That’s why ALL of our projects are backed by a promise of satisfaction guaranteed. We are committed to doing whatever it takes to ensure you are thrilled with our work. That’s the Landmark guarantee!

    What our clients say

    Kevin General Contractor
    ★★★★★

    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.

    Joanne Store Owner
    ★★★★★

    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!

    Araceli Homeowner
    ★★★★★

    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!

    Elizabeth Property Manager
    ★★★★★

    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.

    Baryll Building Owner
    ★★★★★

    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.

    Farid Commercial Developer
    ★★★★★

    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!

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    Commercial Window Installation for Every Property Type

    Office building windows installation in Los Angeles

    Office building Windows

    Educational Institutions window installation in Los Angeles

    Educational Institutions

    Hospitality window installation in Los Angeles

    Healthcare Facilities Windows

    commercial windows Los Angeles

    Apartment Complexes Windows

    Storefront Windows

    Industrial building windows installation in Los Angeles

    Industrial building windows

    Commercial & Industrial Window Retrofits

    Executing a major building envelope upgrade requires technical accuracy and reliable field leadership. As premier commercial window installers in Los Angeles, Landmark Construction replaces outdated, inefficient window units with high-performance commercial glass windows built to handle Southern California’s climate and urban noise.

    Our installation process centers on advanced commercial window glazing techniques that meet strict California Title 24 energy mandates. From boutique hotels to sprawling logistics hubs, our technicians install energy-efficient industrial building windows and curtain wall systems tailored to your property’s structural design.

    Partnering with professional commercial window installers protects your capital investment from costly delays and installation errors. Upgrading to high-efficiency commercial glass windows, modern commercial window glazing, and reinforced industrial building windows improves tenant comfort, lowers monthly HVAC expenses, and elevates your property’s market value. Reach out to our engineering team to schedule a site evaluation.

    Over a DECADE of commercial window installations

    Partner With LA’s Trusted Commercial Glass Contractor

    We partner with commercial contractors across Los Angeles to deliver precise, code-compliant window and glazing work on time and on budget. Whether you need a standalone installer or a long-term subcontracting partner, our licensed team is ready. Get in touch with our local team today for a FREE, no-obligation design consultation and estimate.

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    FAQs

    We install storefront framing, structural curtain walls, architectural window systems, ribbon windows, and specialized glass including low-E energy-efficient, shatter-resistant, and bullet-resistant glass.

    Landmark Construction proudly serves the entire Los Angeles area, including Beverly Hills, Santa Monica, Hollywood, DTLA, Glendale, the San Fernando Valley, and Orange County.

    Yes. We offer fast assessments and emergency repairs for businesses that have experienced break-ins, accidents, or weather damage. We also work with major insurers to help streamline the repair process.

    Yes. We offer flexible evening and weekend scheduling to ensure zero operational downtime or disruption for your tenants, staff, and customers.

    We offer a variety of durable frame materials to suit your aesthetic and functional needs, including aluminum, fiberglass, vinyl, and traditional wood.

    Absolutely. We supply and install high-performance thermal break frames and dual-pane Low-E glass engineered to comply fully with local building codes and Title 24 energy standards.

    Our experts can perform a detailed inspection to look for signs of excessive pressure, seal failure, or hidden cracks. Generally, if you notice rising energy bills, visible drafts, or recurring leaks, it may be time to upgrade to modern, energy-efficient commercial glass.

    You can schedule a free consultation by calling us at (818) 319-4970 or by filling out the contact form on our website to discuss the size and scope of your project.

    Commercial Windows Installation (New Page)
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