HOUSE WASHING
Your Home Deserves to Look as Good as It Performs
Most homeowners notice the grime before they understand the damage it is doing.
What looks like a dirty exterior is often a layer of algae, mildew, mold, and oxidation that is quietly eating away at your siding, trim, and paint. Left untreated, these contaminants shorten the life of your exterior surfaces and drive up the cost of maintenance down the road.
HydroPower’s professional house washing service uses a safe, low-pressure soft wash system, paired with biodegradable cleaning solutions, to remove years of buildup without damaging your home. The result is a deep, lasting clean that restores your home’s appearance from the foundation to the roofline and keeps it looking great far longer than a standard rinse ever could.
What is House Washing?
House washing is a professional exterior cleaning process designed specifically for the siding, trim, shutters, and surfaces of your home. Unlike basic pressure washing, which applies high-force water that can crack, chip, or force moisture behind your siding, house washing uses a low-pressure soft wash approach that is safe for every type of exterior surface.
HydroPower’s soft wash process starts with a professional-grade cleaning solution applied at low pressure. The solution breaks down and lifts dirt, algae, mildew, mold, and oxidation at the source, rather than just blasting it with water. Once the solution has done its work, the surface is gently rinsed clean. The process is safe for vinyl siding, stucco, brick, EIFS, Hardie board, wood, and painted surfaces.
The results speak for themselves. Your home looks freshly painted without the cost, and the clean lasts significantly longer because the root cause of the buildup has been eliminated, not just hidden.
Soft Wash (What HydroPower Uses)
Low-pressure application paired with biodegradable cleaning agents. Safe for all siding types. Kills algae and mildew at the source for a longer-lasting clean. Recommended by most siding manufacturers and roofing associations.
Traditional Pressure Washing
High-force water stream designed for hard surfaces like concrete and brick. Can crack, strip, or force water behind siding when used on your home’s exterior. Not recommended for most residential siding applications.
Signs Your Home Needs a Professional Wash
Your home gives you signals. The problem is that most homeowners learn to look past them over time. Here is what to watch for:
- Black or gray streaks running down your siding, especially on the north-facing side of your home, are a sign of algae and mildew growth that will continue to spread if not treated.
- Green or dark patches on your siding, trim, or around windows indicate active mold or algae colonies taking hold in areas that retain moisture.
- A dull, hazy, or chalky appearance on your siding, particularly on vinyl or painted surfaces, points to oxidation, which breaks down your exterior finish over time.
- Staining around gutters, downspouts, or window sills is often caused by organic growth that has traveled down from your roof and taken root on vertical surfaces.
- A general sense that your home just does not look as clean or bright as it once did is often enough. If you cannot remember the last time your exterior was professionally cleaned, it is time.
Most homeowners in the greater Philadelphia region should have their home professionally washed at least once a year, particularly given the region’s humidity levels and the way organic growth accelerates during spring and summer months. Homes surrounded by heavy tree coverage or in shaded areas may benefit from more frequent cleaning.
The HydroPower House Washing Process
Every house washing job follows a consistent process designed to protect your property and deliver results that last.
Step 1
Pre-Inspection and Surface Assessment
Before we begin, our technicians walk the property to assess surface types, identify areas of heavy buildup, and note anything that requires extra care. We check for any existing damage, examine windows and trim conditions, and plan the most effective approach for your specific home.
Step 2
Protect Your Landscaping
Your garden, plants, and landscaping matter to us as much as they matter to you. We wet down all surrounding vegetation before applying any cleaning solution, and we rinse plants thoroughly after the job is complete. Our biodegradable solutions are formulated to be safe for your landscape when used correctly.
Step 3
Low-Pressure Soft Wash Application
We apply our professional cleaning solution to your home’s exterior using low-pressure equipment designed for soft washing. The solution is applied in sections, starting from the bottom of each wall and working upward to prevent streaking. We give the solution adequate time to penetrate and break down the buildup before rinsing.
Step 4
Thorough Rinse and Detail Work
Once the cleaning solution has done its work, we rinse each surface completely from top to bottom. We pay close attention to corners, trim lines, window sills, shutters, and any areas that tend to trap moisture or buildup. If any section needs additional attention, we address it before moving on.
Step 5
Final Walkthrough
When the job is complete, we walk the property with you to make sure you are completely satisfied with the results. If anything needs a second look, we take care of it before we leave. We do not consider a job finished until you do.
Surfaces We Clean
HydroPower’s soft wash system is safe and effective on virtually every residential exterior surface.
- Vinyl siding, including older, more porous panels that trap dirt and algae
- Stucco and EIFS (Exterior Insulation and Finish Systems), which require careful low-pressure handling to avoid moisture intrusion
- Hardie board and fiber cement siding, including painted and factory-finished panels
- Brick and masonry, where algae and efflorescence buildup can make surfaces look decades older than they are
- Wood siding, shakes, and lap boards, where mildew and moisture damage can lead to rot if left untreated
- Fascia, soffits, shutters, and trim work that frame your home and define its curb appeal
- Window frames and sills, where buildup often collects and stains are most visible
Not sure what type of siding you have? No problem. Our technicians will assess your home on-site and select the right approach before any solution is applied.
Why Homeowners Across The Philadelphia Region Choose Hydropower
Choosing the right house washing company is not just about the lowest price. The wrong technique, the wrong pressure setting, or the wrong cleaning solution can strip your paint, damage your siding, or void your manufacturer’s warranty. Here is why homeowners throughout Montgomery, Chester, Bucks, Delaware, and Berks County trust HydroPower.
We Use the Right Method for Every Surface
Not every surface cleans the same way, and our team knows the difference. We never apply high pressure to surfaces that require a soft touch, and we never use a one-size approach on a home with multiple exterior types.
Trained, Insured, and Background-Checked
Every HydroPower technician is fully trained in soft wash techniques, background-checked, and covered under our commercial liability insurance policy. You will never wonder about your liability when our team is on your property.
Biodegradable Cleaning Solutions
Our cleaning agents are professional-grade and biodegradable. They are tough on algae, mildew, and mold, and safe for your landscaping, your family, and the environment when applied by a trained technician.
Results That Last Longer
Because soft washing eliminates the root cause of biological growth rather than simply rinsing the surface, the results last significantly longer than traditional pressure washing. Most homeowners see their home stay cleaner for one to three years following a professional soft wash service.
A 5-Star Experience, Every Time
From your first call to the final walkthrough, you will deal with a team that communicates clearly, shows up on time, and does not consider the job done until you are completely satisfied. Our hundreds of 5-star Google reviews are the result of a team that takes genuine pride in its work.
Fast, Reliable Scheduling
We know your time is valuable. Our booking process is simple, most jobs are on the schedule within a few days of your call, and we arrive on time. No waiting around, no surprises.
Frequently Asked Questions About House Washing
How often should I have my home professionally washed?
Most homeowners in the greater Philadelphia region benefit from a professional house washing once per year. Homes in heavily shaded areas, properties with significant tree coverage, or homes where you have noticed recurring algae or mildew growth may benefit from cleaning every six to nine months. If you are unsure, give us a call and we can assess your home’s specific situation.
Is soft washing safe for my siding warranty?
In most cases, yes. Many siding manufacturers, including several of the largest vinyl siding brands, actually recommend soft washing over high-pressure washing because excessive pressure can crack, warp, or force water behind your panels. Our process is consistent with industry best practices for residential exterior cleaning. If you have a specific warranty concern, we are happy to review it with you before we begin.
Will the cleaning solution harm my plants or lawn?
Our team takes precautions on every job to protect your landscaping. We wet down surrounding plants before applying any solution, and we rinse them thoroughly when the job is complete. Our biodegradable cleaning agents are formulated to minimize environmental impact. Significant or widespread plant damage is extremely rare when proper pre-wetting and post-rinsing steps are followed.
Do I need to be home when my house is washed?
You do not need to be home for the work to be completed, since everything takes place on the exterior. We do ask that windows are closed and that pets are kept indoors during the service. If you would like to be present for the final walkthrough, we simply ask that you let us know when scheduling so we can plan accordingly.
How long does a house washing take?
Most standard residential house washing jobs are completed in two to four hours, depending on the size of the home, the extent of the buildup, and the number of surfaces being cleaned. We will give you a time estimate when we provide your quote so you can plan your day accordingly.
How much does house washing cost?
House washing prices vary based on the square footage of your home, the type of siding, the degree of buildup, and any access considerations. We provide a transparent, itemized quote before we begin, with no hidden fees and no pressure to add services you do not need. Contact us for a free, no-obligation estimate.
See The HydroPower Difference
Results speak louder than promises. Browse our before-and-after photos from real house washing jobs across Montgomery, Chester, Bucks, Delaware, and Berks County, and read what our customers have to say about working with our team.
Ready for a Cleaner Home?
Getting a quote is fast and free. Tell us about your home and what you are looking to have done, and we will get back to you quickly with a clear, honest price. No pressure, no guesswork, and no surprise charges when the job is done.
Prefer to call? Reach us at
610-567-9274
Serving residential and commercial customers throughout Montgomery, Chester, Bucks, Delaware, and Berks County, as well as Philadelphia, PA.
Proudly Serving Homeowners Across Southeast Pennsylvania
HydroPower provides professional house washing and soft wash services throughout Montgomery, Chester, Bucks, Delaware, and Berks County, as well as the greater Philadelphia area. If you do not see your town listed below, give us a call. If you are in the region, chances are we cover it.
Collegeville
Eagleville
Phoenixville
Royersford
Limerick
King of Prussia
Skippack
Schwenksville
Audubon
Worcester
East Norriton
Linfield
Spring City
Trappe
Oaks
Trooper
West Norriton
Plymouth Meeting
Norristown
Blue Bell
Collegeville
Eagleville
Phoenixville
Royersford
Limerick
King of Prussia
Skippack
Schwenksville
Audubon
Worcester
East Norriton
Linfield
Spring City
Trappe
Oaks
Trooper
West Norriton
Plymouth Meeting
Norristown
Blue Bell