Tips & Guides

Free expert advice to help you maintain your property. From the pros at Sani Spray Solutions.

5 Signs Your House Needs Washing

•Green or black streaks on siding — that's algae and mold growing on your home.
•Visible dirt buildup, especially on north-facing walls that get less sun.
•Spider webs and insect nests accumulating around eaves and windows.
•Your house looks noticeably darker than when it was painted or installed.
•Neighbors have washed theirs and your home stands out (not in a good way).

Pro Tip: In North Carolina's humid climate, we recommend washing your home at least once a year, ideally in spring after pollen season.

When to Clean Your Gutters

•Late spring (May-June) — after pollen, seeds, and spring debris have settled.
•Late fall (November) — after most leaves have fallen.
•After major storms — heavy rain, wind, or ice can dump debris into gutters.
•When you see plants growing out of your gutters — that means soil has built up.
•If water overflows during rain — the gutters are blocked and need immediate attention.

Pro Tip: Clogged gutters cause water damage to fascia, soffit, siding, and foundations. It's one of the cheapest ways to prevent the most expensive repairs.

Why Roof Washing Extends Your Roof's Life

•Those black streaks are Gloeocapsa Magma — an algae that literally eats your shingles.
•Algae traps moisture, accelerating shingle deterioration and granule loss.
•Moss and lichen lift shingles and allow water underneath, causing leaks.
•Soft washing kills these organisms at the root without damaging shingles.
•Regular soft washing can extend your roof's life by 5-10 years — saving you $10,000+ on a premature replacement.

Pro Tip: Never use high-pressure on a roof — it strips protective granules and voids warranties. Always choose soft wash.

Spring Cleaning Checklist for Exteriors

•1. House wash — remove winter grime, pollen, and mold that accumulated over the cold months.
•2. Driveway & sidewalks — pressure wash to remove salt, oil stains, and dirt buildup.
•3. Gutters — clear out debris from winter storms and spring pollen.
•4. Windows — clean the winter film for better natural light and curb appeal.
•5. Deck & patio — clean and prep for summer entertaining season.
•6. Roof inspection — check for winter damage and algae/moss growth.

Pro Tip: Spring is the most popular time for exterior cleaning in Charlotte. Book early to get the best scheduling options!

Pressure Washing vs. Soft Washing: What's the Difference?

•Pressure washing uses high-pressure water (2,000-4,000 PSI) to blast away dirt. Best for hard surfaces like concrete, brick, and stone.
•Soft washing uses low-pressure water (under 500 PSI) with specialized cleaning solutions. Best for delicate surfaces like siding, roofs, and wood.
•Using high pressure on the wrong surface can cause serious damage — water forced behind siding, stripped paint, damaged shingles.
•A professional knows which method to use for each surface. This is the #1 reason to hire a pro instead of renting a machine.

Pro Tip: If you're not sure, always start with soft wash. You can't un-damage a surface.

How to Maintain Clean Windows Between Professional Cleanings

•Rinse windows with a garden hose every 2-3 months to prevent mineral deposits from building up.
•Keep screens clean — dirty screens transfer grime to windows every time it rains.
•Trim bushes and trees near windows to reduce sap, pollen, and insect buildup.
•Clean window tracks and sills regularly to prevent water from backing up and staining glass.

Pro Tip: Professional window cleaning 2-4 times per year is ideal in NC. Spring and fall are the most popular seasons.

Need Professional Help?

Get a free quote for any of our exterior cleaning services.

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