House Washing Hickory NC: What to Expect and How It Works

House washing is one of the most common exterior cleaning services in Hickory NC — and one of the most misunderstood. Homeowners often assume it is just running a pressure washer along the siding. Done correctly, it is much more precise than that. Here is what professional house washing actually involves and what you should expect from start to finish.

What Is House Washing?

House washing refers to cleaning the exterior surfaces of a home: siding, soffit, fascia, gutters (exterior face), window frames, and typically the front porch or entryway. In most cases this is done using soft washing — low-pressure water combined with a surfactant-based cleaning solution — rather than direct high-pressure spray.

The cleaning solution kills biological growth (algae, mold, mildew, and pollen) at the surface level. The result is a clean, bright appearance that lasts significantly longer than pressure washing alone, because the root cause of the staining is addressed rather than just blasted off temporarily.

What Does House Washing Remove?

The most common causes of dirty siding in the Hickory area are:

• Green algae: Common on shaded north and west-facing walls. Appears as a green or greenish-gray haze on vinyl and painted wood.
• Black mold and mildew streaks: Often runs down from the soffit line or around window frames.
• Pollen: Heavy in spring in Catawba County. Yellow-green buildup is visible on horizontal surfaces and window sills.
• Spider webs and dirt: Accumulates at corners, eaves, and light fixtures.
• Oxidation: On older painted or aluminum siding, appears as a chalky white residue that comes off on your hand when you touch the surface.

Does the Type of Siding Matter?

Yes. The method and chemical concentration are adjusted based on siding material:

• Vinyl siding: The most common in Hickory. Handles soft washing very well. A moderate solution concentration rinses clean and leaves the vinyl bright.
• Painted wood or hardiplank: Requires careful chemical selection to avoid streaking or dulling the paint sheen. Lower pressure and rinse with care.
• Stucco or EIFS: Porous surface that can trap cleaning solution. Requires thorough rinsing and attention to any cracks or openings.
• Brick: Handled differently — see our brick cleaning page for specifics.

How Long Does House Washing Take?

For a typical single-story home in Hickory NC, the process takes two to three hours. A two-story home typically takes three to four hours. Larger homes or those with significant biological buildup take longer. We can give you a time estimate when we quote the job.

How Often Should You Wash Your House?

For most homes in Catawba County, once per year is sufficient. Homes with heavy tree cover, especially on north-facing walls, may benefit from cleaning every six to eight months. South-facing walls in direct sunlight typically stay cleaner longer.

A good benchmark: if the siding has visible green or black staining, or if the original color looks noticeably faded or gray, it is time for a wash.

What to Do Before the Crew Arrives

• Close all windows and doors (we will confirm before starting)
• Move patio furniture, potted plants, and vehicles away from the house
• Turn off any outdoor electrical outlets or cover them with tape
• Let us know about any broken seals, known leaks around windows, or recent exterior paint work

HydroClean House Washing

HydroClean has washed hundreds of homes in Hickory, Newton, Conover, Granite Falls, and surrounding Catawba County. We use soft washing as our primary method, biodegradable surfactants, and we pre-wet and post-rinse all landscaping on every job.

Learn more about our house washing service or contact us for a free estimate.

Frequently Asked Questions