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    Proudly serving Southern California.

    Home Hero

    HSG

    Waterproofing, Restoration, & Window Cleaning

    Know What You Need?

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    Southern California’s Trusted Building Exterior Experts

    We’re Southern California’s trusted building exterior experts. Since 1980, building owners and property managers have relied on HSG to keep their properties beautiful, safe, and desirable. We’ll save you time, eliminate hassles, and give you the peace of mind that comes from partnering with the best in the business.

    About Us

    With over 40 years of experience, property owners and managers across Southern California count on HSG to provide a full array of building exterior maintenance services. What makes us the industry leader is our unwavering commitment to customer service and worker safety, the integrity of our business practices, and our ability to simplify and streamline even the most complex building maintenance regimen.

    Rely on HSG not only to meet your responsibilities, but to make your job simpler than you ever imagined. We’ll save you time, eliminate hassles, and give you the peace of mind that comes from partnering with the best in the business.

    Learn More About Us

    What Our Clients Say

    Here’s what our customers have to say about us!

    Avison Young

    “HSG has always been there whenever I needed any type of work, most recently for water proofing. Due to the heavy rains we had a small water leak on the... Read More

    Tania

    Assistant Property Manager, PMRG

    “Thank you HSG for being my one stop vendor for window cleaning, metal restoration, pressure washing and water proofing. We truly appreciate you and your entire team, and we look... Read More

    Kilroy Realty

    “I have used HSG for many years and without a doubt I will continue to use them in the years to come.”

    Kilroy Realty

    “Kilroy Realty chooses HSG for the consistent work quality, above and beyond customer service and the professional workers that are sent out to our properties. Additionally, HSG's wide range of... Read More

    Senior Property Manager of Beverly Hills Corporate offices

    “The extraordinary service we receive from HSG is one of the many reasons we choose HSG for our window cleaning and restoration needs. They are more than just our vendor... Read More

    Keni

    LPC

    “HSG has always been my go to for window cleaning and waterproofing services. More than just the excellent service that the team provides, Sal and Andy have incredible response time... Read More

    HSG technician in safety gear working on the exterior of a high-rise building, demonstrating expertise in commercial building maintenance.

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