HSG
Waterproofing, Restoration, & Window Cleaning
Know What You Need?
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.
Our Services
From waterproofing, restoration and window cleaning to stain removal and bird control, we coordinate every service you need into one efficient plan – with a single point of contact.
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.
What Our Clients Say
Here’s what our customers have to say about us!
“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
“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 15th floor, all I had to do was to place a call to HSG and they immediately came up with an action plan. Response times are great and the staff are always professional and courteous.” Read Less
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
“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 forward to our continued partnership. Thank you, Alicia, for always making sure everything looks great!!!” Read Less
“I have used HSG for many years and without a doubt I will continue to use them in the years to come.”
“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
“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 services from waterproofing to caulking provides us with a one stop shop for a variety of projects. I would highly recommend HSG for your class-A commercial projects.” Read Less
“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
“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 they are our partner and no project, question or concern is too small or too big for them to handle. The customer service and expertise we receive from Andy, Sal and Hector is beyond measure and the work performed is always done to the highest level.” Read Less
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 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 and always address needs and/or questions as they come up and are always willing to help out.” Read Less
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