Soft Washing Services in Princeton, NJ
Safe, low-pressure cleaning that removes algae, mold, mildew, and staining without damaging your property.
Soft Washing: The Safer Way to Clean Your Home's Exterior
Soft washing uses low-pressure water combined with specialized, biodegradable cleaning solutions to safely remove dirt, mold, algae, and other organic staining from your home's exterior. Unlike high-pressure methods that can damage siding, soft washing is gentle enough for vinyl, stucco, wood, painted surfaces, and more.
Over time, algae, mildew, and grime build up on siding, trim, and eaves. This buildup is not just unsightly; it can cause long-term damage and reduce your home's curb appeal and value. Soft washing kills organic growth at the root, keeping surfaces cleaner longer than pressure washing alone.
All of our cleaning solutions are biodegradable and safe for plants, pets, and landscaping. We take care to protect your property during every service.
Why Soft Washing Beats Pressure Washing
Pressure washing your siding or roof can crack vinyl, force water behind panels, strip paint, and blow out window seals. Soft washing avoids all of that. The pressure we use is lower than a garden hose. The cleaning solution does the heavy lifting, not water pressure. That is why every major siding manufacturer recommends soft washing for their products.
The Science Behind Our Solutions
Our cleaning solutions break down and kill mold, mildew, algae, and bacteria at the cellular level. Pressure washing only removes the surface layer, but roots stay embedded and grow back within months. Soft wash solutions penetrate the root system and eliminate growth entirely, which is why results last 1 to 3 years instead of a few months.
How Long Results Last
Most homeowners from Hopewell to Newtown see results lasting 1 to 3 years. Homes with good sun exposure tend to stay cleaner longer. Homes tucked into the woods or on the north side of a hill may see regrowth sooner, but still much slower than if the surface was only pressure washed.
Safe for Your Landscaping
Our solutions are biodegradable and break down quickly after application. We pre-wet all surrounding landscaping before we start and rinse everything thoroughly when we are done. We have cleaned hundreds of homes across NJ and PA without any landscaping damage. Your garden beds, shrubs, and lawn are safe with us.
How Soft Washing Works
A simple, proven process that leaves your home looking brand new.
1. Inspection
We walk the property to assess surfaces, identify problem areas like algae or mildew, and choose the right cleaning solution for your materials.
2. Treatment
Our biodegradable cleaning solution is applied at low pressure, killing mold, algae, and bacteria at the root without damaging your siding, paint, or landscaping.
3. Rinse & Review
We give everything a thorough low-pressure rinse, do a final walkthrough with you, and make sure every surface looks spotless before we leave.
Surfaces We Soft Wash
Soft washing is safe and effective on a wide range of exterior materials.
Siding & Trim
Vinyl, wood, stucco, painted surfaces, and fiber cement siding.
Fences & Decks
Wood, composite, and vinyl fences and decks restored safely.
Storefronts & Awnings
Commercial soft washing for building exteriors and fabric awnings.
Where We Provide Soft Washing
We serve communities across Mercer, Hunterdon, and Somerset counties in NJ and Bucks County, PA.
Other Services We Offer
Window Cleaning
Crystal-clear windows inside and out, including screens, tracks, and frames.
Power Washing
High-pressure cleaning for driveways, walkways, patios, and hard surfaces.
Roof Washing
Safe roof cleaning that removes black streaks and extends shingle life.
Gutter Cleaning
Full gutter cleaning and flush to protect your foundation.
Common Questions About Soft Washing
How much does soft washing cost?
Most homeowners pay between $400 and $600+ for a full house soft wash. The price depends on home size, height, surface area, and how heavy the buildup is. A small ranch with light algae costs less than a large two-story colonial covered in mold. Single surfaces like a fence or deck cost less than a full-house treatment. We always provide free estimates before any work begins.
Is soft washing better than pressure washing?
It depends on the surface. For siding, roofs, painted trim, stucco, and wood, soft washing is the better choice because high pressure can damage these materials. For hard surfaces like concrete driveways and brick walkways, power washing is the way to go. A good cleaning company knows which method to use on each surface, and that is exactly what we do for homeowners from Lambertville to Yardley.
Does soft washing kill mold?
Yes. Our cleaning solutions kill mold, mildew, algae, lichen, and bacteria at the root level. Pressure washing only removes the visible surface layer, and the root system grows back within weeks. Soft washing eliminates the entire organism, so your surfaces stay cleaner for 1 to 3 years. If you see dark streaks or green patches on your siding, that is active organic growth that soft washing can remove for good.
How long does soft washing last?
Results typically last 1 to 3 years, significantly longer than pressure washing alone. Homes with good sun exposure and airflow stay cleaner longer. Homes with heavy shade and moisture in areas like Stockton or Solebury may see regrowth sooner. Most homeowners find that a soft wash every 1 to 2 years keeps their home looking great year-round.
Is soft washing safe for my landscaping?
Yes, when done by a professional. We use biodegradable solutions that break down quickly. Before every job, we pre-wet all surrounding landscaping to create a protective barrier. During the job, we keep runoff away from sensitive plantings. We have cleaned hundreds of homes across the Delaware Valley and have never damaged a customer's landscaping.
What surfaces should be soft washed instead of power washed?
Any surface that could be damaged by high pressure should be soft washed. That includes vinyl siding, wood siding, painted surfaces, stucco, EIFS, cedar shakes, roofing shingles, composite decking, and fabric awnings. If you are not sure which method your surface needs, we will assess it during a free estimate and recommend the right approach.
Soft Washing FAQ
What is soft washing?
Soft washing is a low-pressure exterior cleaning method that uses specialized, biodegradable solutions to remove dirt, algae, mold, mildew, and other organic buildup. Unlike power washing, it relies on the cleaning solution rather than high pressure, making it safe for delicate surfaces like vinyl siding, painted wood, stucco, and roofing shingles.
Is soft washing safe for my home?
Yes. Soft washing uses roughly one-third the pressure of a standard garden hose, so there is no risk of damage to siding, paint, or window seals. Our cleaning solutions are biodegradable and plant-safe. We also take extra care to protect landscaping, outdoor furniture, and fixtures during every job.
How often should I soft wash my house?
For most homes in the Princeton and Delaware Valley area, we recommend soft washing once a year or every two years, depending on your home's exposure to shade and moisture. Homes surrounded by trees or on the north side of a hill tend to accumulate algae and mildew faster and benefit from annual cleaning.
What is the difference between soft washing and power washing?
Power washing uses high-pressure water to blast away dirt and grime, which works well on hard surfaces like concrete, brick, and stone. Soft washing uses low pressure combined with cleaning solutions that break down organic growth at the root. Soft washing is the better choice for siding, roofs, fences, and decks because it cleans thoroughly without the risk of damage from high pressure.
Can I soft wash my house myself?
You can try, but it is not recommended. The cleaning solutions need to be mixed at the right concentration for safety and effectiveness. Too little solution will not clean properly, and too much can damage surfaces or landscaping. Professional soft wash systems also deliver the solution at the right volume and pressure to get even coverage without streaking. Plus, working at height around eaves and second stories adds a real safety risk.
Will soft washing remove black streaks from my siding?
Yes. Those dark streaks on siding are almost always caused by an algae called Gloeocapsa magma. Soft washing kills the algae and removes the staining completely. The results are dramatic and your siding will look like new. Because the solution kills the algae at the root, the streaks stay gone much longer than if you just rinsed them off with a hose or pressure washer.
Does soft washing work on roofs?
Absolutely. Soft washing is actually the only recommended method for cleaning roofing shingles. Pressure washing a roof can strip away the protective granules on asphalt shingles, void your warranty, and cause leaks. Our soft wash process safely removes black streaks, moss, lichen, and algae without any damage to your shingles. Check out our roof washing page for more details.
How long does a soft washing appointment take?
Most residential soft washing jobs take between 1 and 3 hours depending on the size of the home and the amount of buildup. We take our time to do the job right, including thorough pre-wetting of landscaping, careful application of the cleaning solution, and a complete rinse when everything is done. Larger homes or homes with heavy growth may take a bit longer.
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