Your home is more than just a place to live—it’s a reflection of who you are. Over time, however, even the most beautiful homes can begin to lose their luster. Dirt, mold, mildew, algae, and pollution gradually take a toll on your home’s exterior, leaving it dull, streaked, or even stained. That’s where expert house washing comes in. This powerful yet often underestimated service can take your home from grimy to gleaming in just a matter of hours.
In this blog post, we’ll explore everything you need to know about house washing—from how it works to the dramatic benefits it offers. Whether you're a first-time homeowner or a seasoned pro, you'll discover why professional house washing is one of the best investments you can make in your home’s long-term beauty and value.
Why House Washing Matters
Think of your home’s exterior as its skin. Just like your skin collects dirt and bacteria, your house is constantly exposed to environmental elements that leave it dirty and weathered. Rain, wind, pollen, bird droppings, dust, automotive exhaust, and UV rays all contribute to a build-up of grime over time.
Without regular cleaning, this build-up can:
Stain and discolor your siding
Encourage mold and mildew growth
Damage exterior materials like wood and stucco
Lower your home's value and curb appeal
Impact indoor air quality by allowing mold to seep inside
Professional house washing restores your home's exterior to its original condition—or even better—and helps protect it for years to come.
What is House Washing?
House washing is the comprehensive cleaning of a home’s exterior using water, detergents, and professional-grade equipment. Unlike a quick rinse with a garden hose, expert house washing delivers a deep, lasting clean. The process removes contaminants such as mold, mildew, algae, pollen, spider webs, dirt, and general pollutants.
There are two primary methods professionals use:
1. Pressure Washing
Pressure washing uses highly pressurized water—often over 2,000 PSI—to blast away dirt and debris. It’s especially effective on hard surfaces like concrete, brick, stone, and metal. However, on softer materials (like vinyl or painted wood), it can cause damage if not done correctly.
2. Soft Washing
Soft washing uses low-pressure water combined with biodegradable cleaning solutions to kill and remove organic growth like algae, mold, and mildew. It’s the preferred method for most siding types, roofs, windows, and other delicate surfaces. Soft washing is gentle, safe, and long-lasting.
The best professional house washing services tailor their approach to your home’s specific materials and condition.
The Transformation: What You Can Expect
When done correctly, house washing can produce jaw-dropping results. Here’s what you can expect:
Before the Wash
Siding looks stained or weathered
Presence of black streaks (from algae or pollution)
Green patches from moss or mildew
Visible dirt, spider webs, and bugs
Dull or uneven color
After the Wash
Bright, clean, and uniform siding color
Elimination of algae, mold, mildew, and moss
A noticeable boost in curb appeal
A fresher, healthier exterior with no lingering contaminants
Windows and trim look polished and streak-free
Photos don’t lie—before-and-after comparisons often show homes that look years younger after a single wash.
Benefits of Professional House Washing
1. Curb Appeal and First Impressions
A clean exterior speaks volumes. Whether you're welcoming guests or putting your home on the market, the difference between a grimy and gleaming home is immediate and impressive. Realtors even suggest that a professional wash can increase perceived home value by thousands of dollars.
2. Protection from Long-Term Damage
Organic growth like algae, lichen, and mildew can slowly degrade your siding, roof, and paint. Regular house washing removes these invaders and prevents costly repairs down the road.
3. Healthier Living Environment
Mold, mildew, and pollen can trigger allergies, asthma, and other respiratory issues. Removing them from your home’s exterior helps keep the interior air clean, especially if these contaminants find their way indoors through vents or windows.
4. Preparation for Painting or Renovation
Planning to repaint your home or stain your deck? A thorough wash is a must. It creates a clean surface for paint or stain to adhere to, improving longevity and finish quality.
5. Increased Property Value
A clean home looks well-maintained, which boosts its marketability and perceived value. If you’re selling, investing in house washing is one of the most cost-effective ways to improve buyer impressions.
What Areas of the Home Can Be Washed?
Professional house washing services can clean a wide range of surfaces around your property. Common areas include:
Siding (vinyl, wood, fiber cement, aluminum)
Brick and stone walls
Roof shingles (asphalt, tile, cedar shakes)
Driveways and walkways
Decks, patios, and fences
Garage doors
Gutters (interior and exterior)
Window frames and shutters
Lanai or screened enclosures
Each surface may require a different pressure level or cleaning solution, so make sure your service provider uses tailored techniques.
The Process: How Professional House Washing Works
Step 1: Inspection and Assessment
The technician will walk around your property and identify any problem areas, delicate surfaces, or high-traffic zones. They'll determine which cleaning methods and solutions to use.
Step 2: Surface Preparation
Plants, furniture, and decor near the house are either removed or covered. Windows and doors are checked to ensure they’re sealed. Electrical outlets and sensitive areas are protected.
Step 3: Application of Cleaning Solution
A biodegradable solution is applied to break down dirt, mold, and algae. In soft washing, this solution also kills spores, preventing regrowth.
Step 4: Rinse and Clean
Using the appropriate pressure and spray pattern, the technician thoroughly rinses each surface. On hardscapes, a high-pressure wash may be used; on siding, a low-pressure rinse is common.
Step 5: Final Inspection
The technician checks for missed spots and ensures every cleaned area meets quality standards. Some companies offer before-and-after photo documentation.
DIY vs. Hiring a Professional: Which Is Better?
DIY House Washing
Pros:
Lower upfront cost (if you own or rent equipment)
Convenient timing
Cons:
Risk of damaging siding or windows
Limited access to commercial-grade cleaners
Time-consuming
Potential for injury (ladders, pressure equipment)
No warranty or service guarantee
Professional House Washing
Pros:
Expert results with no risk to your home
Access to specialized equipment and solutions
Fully insured and trained crews
Fast and efficient service
Long-lasting results
Cons:
Higher initial cost
Conclusion: If you have a small project or experience with pressure washing, DIY may suffice. For full-house cleanings or fragile surfaces, hiring a pro is safer and delivers better results.
How to Choose the Right House Washing Service
Here’s what to look for when hiring a provider:
✅ Licensed and Insured
Ensure the company carries liability and worker’s compensation insurance. Accidents can happen—insurance protects you from unexpected costs.
✅ Experience and Reputation
Check online reviews, ask for references, and look at before-and-after photos. Established companies often provide the most reliable results.
✅ Specialized Equipment
Confirm that they use soft washing where appropriate and have pressure-washing equipment that’s well-maintained.
✅ Eco-Friendly Practices
Ask about their cleaning solutions—are they safe for pets, plants, and the environment?
✅ Clear Estimates and Guarantees
Always get a written quote with a breakdown of services included. Ask about satisfaction guarantees or warranties.
How Often Should You Wash Your Home?
Most homes benefit from a professional house washing once a year. However, the frequency may vary depending on:
Location: Humid, coastal, or forested areas may require more frequent cleaning.
Siding Material: Vinyl, stucco, and wood siding tend to collect grime faster than brick.
Proximity to roads or construction: Homes near traffic-heavy areas may accumulate more dust and pollutants.
Presence of mold/mildew: If your home is prone to algae growth or mold, more frequent washing may be necessary.
Costs: What Should You Expect to Pay?
House washing costs depend on your home’s size, the cleaning method used, and the region you're in.
| Home Size or Area | Average Price Range (USD) |
|---|---|
| One-story home | $300 – $600 |
| Two-story home | $400 – $800 |
| Driveways/Walkways | $100 – $300 |
| Roof washing | $250 – $600 |
| Gutter cleaning (ext.) | $100 – $250 |
| Full package (home + extras) | $600 – $1,200 |
Pro tip: Avoid the cheapest option. Look for value—someone who offers professional service, insurance, and quality guarantees.
Conclusion:
House washing may seem like a basic chore, but when done professionally, it’s a transformative service that dramatically improves your home’s appearance, health, and value. Whether your house is covered in algae, streaked with dirt, or simply looking tired, expert house washing can bring it back to life.
So if you’re ready to take your home from grimy to gleaming, don’t wait until the buildup becomes a problem. Invest in a professional house washing service—and let your home shine like it was meant to.
Let's Connected
Name: ProWash Wellington
Address: 10 Halifax Street, Wainuiomata, Lower Hutt, Wellington 5014
Phone: 022 132 3578
Map: maps.app.goo.gl/9WqdNZV8b16KxjqU7