What’s So Hard About Water?

Many building owners are unaware of the damaging chemical processes quietly taking place on their property. Not all water is created equal! Depending on what it contains, water can be a friend or a foe to your building exterior.

Hard water is water with a high concentration of minerals, often including calcium, magnesium, or silicon. This type of water leaves behind unsightly mineral deposits – a chalky whitish coating – when it dries and carries with it an increased risk of corrosion and damage to your building.

Don’t wait to address this problem until it is too late! HSG has decades of experience in hard water stain removal. We use extra-fine triple zero (Grade #000) steel wool with a special polishing agent to remove stubborn mineral deposits. This process is gentle enough not to scratch glass, but it is strong enough to make dulled, worn surfaces look bright and new.

We guarantee your building and your business will look more inviting and professionally maintained with regular help from us!

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Clearly, Clean Windows are Good for Business
HSG Worker cleaning windows from suspended platform

From the outside, clean windows maintain your property’s appearance and value. From the inside, occupants appreciate the clear view. Dirty windows not only detract from your building’s appearance but when environmental pollutants, dirt or bird droppings sit on window frames, damage occurs. The cost to restore metal or to waterproof joints can be extensive. Window cleaning on a regular schedule can guard against disgruntled tenants and costly repairs.

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Bird Control: Don’t Wing It

Bird Control Methods, Pigeons and Seagulls

Birds are smart. They enjoy a good view, a nice perch and a comfy nest. But they’re also a menace to businesses, tenants and customers. Pigeons, in addition to being infested with pests like fleas, ticks and lice, carry over 60 different types of diseases. Birds roost on building roofs, in eaves, on building overhangs, on solar panels, signage, HVAC units, supports and parapet walls. Their droppings on building ledges, patios, walkways and on other exterior venues create a dirty, disease-filled environment. Fixing the damage can be expensive.

Bird control is good for business.

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Building Metal Restoration: The Right Touch

Building Metal Restoration Before and After

Dirt, sun, heat, pollution, moisture, cool weather — all affect how the metal on a building looks. Over time, these elements cause metal window frames and metal panels to look faded, aged, stained, pitted, corroded and oxidized.

To properly restore metal surfaces, including anodized or painted metal, HSG usually begins with a light “blocking.” Says HSG Field Estimator Oscar Sanchez, “For proper metal restoration, it’s important to have the right touch — to be careful not to remove any color that’s been applied to the surface, especially along the edges.” This light touch removes 95% of the oxidation and pollutants and exposes the finish’s natural luster beneath. If metal surfaces are extremely damaged, dented or scratched, HSG can provide services to remedy those issues.

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Good First Impression: Parking Lot Washdown

HSG Parking Lot Washdown Before and After

Often, the first impression a customer or visitor has of your building is when they enter the parking lot or structure. Businesses that want to make a good impression provide a parking area that is in good, clean condition; free from oil, grease and gum. A Parking Lot Washdown is part of maintaining a safe and attractive facility.

HSG recommends an inspection, where we can walk to determine the following:

  • Is the floor surface rough or smooth?
  • Is the parking area indoors or outdoors?
  • Is there adequate ventilation?
  • Can the building’s security system be put on “test” while maintenance takes place?
  • What is the water source?
  • Is there adequate drainage?
  • Where will water reclamation barricades be placed? 

Floor Surface

If the floor has a rough surface, HSG will first sweep to pick up any loose dirt and debris. If the surface is smooth, the sweeper is probably not required. With rough surfaces, HSG frequently uses its commercial “Hurricane” cleaner. This device sprays water, agitates and vacuums up the water and dirt, all in one process. Since the Hurricane vacuums up water, it is also used in areas that are flat and have little or no drainage options.

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High Pressure Cleaning of Buildings: HSG Fights Grime!

HSG High Pressure Cleaning

A dirty building, or the area that surrounds it, is a building that may be visually unappealing. Cleaning a building using a high-pressure technique, and sometimes with cleaning agents, can remove dirt on walls and ledges, frames and mullions. It also gets rid of spider webs and bird droppings. Pressure washing your building can rejuvenate the building and many times prevents repainting.

Most concrete, stucco, or brick buildings should be cleaned at least once a year and parking structure floors once per year. Some buildings, like HSG’s client The Broad Museum’s “veil” are pressure cleaned twice a year. “They want their building to ‘sparkle,’” says Manny Delgado, an HSG field supervisor.  Manny has 26 years with HSG.

Example of concrete before and after HSG High Pressure Cleaning
Example of a concrete surface before and after High Pressure Cleaning

HSG uses different methods depending on the conditions of the surfaces. Some projects may require only a simple low rinse (with water that includes an additive to help release dirt embedded in pores). Other projects require a hot water application that can include a proprietary chemical mix. This second method may be required if the building has not been washed in a long time. Special cleaning agents are used when white concrete surfaces need to be “whitened.” All chemicals used by HSG are environmentally safe and we comply with all Zero Water Discharge Laws. When the situation calls for it, we can clarify or recycle discharged water. HSG also has a Hazardous Water Disposal Permit issued by the City of Los Angeles.

When HSG fights grime, we help improve your building’s appearance and promote “Pride of Ownership.”


HSG provides: Waterproofing | Metal & Curtain Wall Restoration | High-rise Window Cleaning | High Pressure Cleaning | Bird Control Installation |Glass Scratch Removal | Denka Lift Rental and Repairs | OSHA Roof Rigging Requirement & OPOS Consulting

Established in 1980, HSG promotes safety, knowledge and training of its staff and superior customer service and communication. For more information, visit HSG Inc. or call: 323-733-8552.

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