When is the best time for house power washing in NJ? Many homeowners do not make it a point to arrange for cleaning services once or twice a year instead they install new siding or a new roof, but that is not necessary. They might focus on one area of the home, like the roof or the deck. Sometimes it’s most efficient to power wash or soft wash several areas at the same time. Some of the areas you might want to attend to include your roofing, siding, fencing, sidewalks, steps, patio and drive.

When a specific problem occurs, it’s time to schedule an extra visit. Pronounced roof moss, storm debris and fresh stains are some examples.

Seasonal Power Washing

Many NJ homeowners arrange for power washing in the spring and again in the fall. If you’re going to power wash just once a year, late spring is a good choice. Spring cleaning prepares decks and patios for summer entertaining. Soiled decks and patios are often more slippery when wet.

The best time for house power washing in NJ is when the temperatures are moderate. There are times when it’s simply too cold or too warm for house power washing in NJ. When it’s so cold that the water freezes, there’s a risk of turning your home into an ice castle. Power washing or soft washing that involves chemicals that are temperature-sensitive. It needs to be warm enough for degreasers, detergents and other cleaning agents to work their magic. Hire a NJ contractor you can trust so you don’t have to worry about poorly timed cleaning.

Soft washing a roof in extreme heat requires special care. Cleaning pros use surfactants to slow evaporation rates on sun-drenched roofs. Soft washing a dark roof is a questionable practice when it’s really hot outside. Surface temperatures can reach 160 degrees and more. The water evaporates so fast that the cleaning agents just don’t have the time to work as desired.

Best Times for Different Needs

Let’s look at some of the seasonal needs for cleaning exterior surfaces around your property.

Organic growth

New Jersey’s warm, moist summers encourage unwanted organic growth on residential roofs. Dark streaks appear due to blue-green algae (Gloeocapsa magma). Moss tends to grow on north-facing slopes and in moist, shaded areas. Lichens spread across shingles. Soft washing your North NJ roof at the end of the growing season cleans away moss, lichens and algae.

On wooded or otherwise shaded lots, moss is even more common. A professional contractor attacks unwanted organic growth with detergents and/or algaecides to ensure the cleaning agents work as intended. biodegradable detergents and/or algaecides. It’s important to complete the job before the temperature gets too cold. This guarantees that the cleaning agents will work as intended.

growth roof power washing


Pollen is often drawn into the home through open windows, ventilated soffits and intake vents. When you want to wash away these allergens, arrange for cleaning as the spring allergy season ends. Keep in mind that in New Jersey, the main pollen season frequently extends into June.

Mold is another allergen. Mold won’t grow on clean, smooth siding. However, it can grow on any coating of dirt and grime that develops over time. Periodic power washing or soft washing limits mold and mildew growth.

Airborne dust and pollutants

Particulate matter from traffic exhaust and industrial pollution often settles on Tri-state properties. Dust and dirt blow in from farm fields to the west. Herbicides and pesticides used on those fields may ride along on these particles. Dust and dirt also blow in from construction sites in the area. A drought will often make the situation worse.

Gutter debris

There are many things that keep gutters and downspouts from draining water away from your home. Dirt, debris and shingle granules accumulate in gutters during the long NJ winters. There are many reasons for extra granule loss from shingles. Hailstorms cause granule loss. It’s also more pronounced on aging shingles and on those that suffer from blister rash. Power washing your roof once or twice a year allows for the granules to be disposed of and to prevent gutter debris. Power washing is an efficient way to wash these granules out of your gutters. As they come out of the downspouts, technicians can gather and dispose of them.

In the spring, tree seeds drop onto roofs in North NJ. In the fall, leaves clog gutters from Bergen County to Passaic County and beyond. Trained technicians use power washing wands to efficiently remove this debris. In some cases, you might need more than power washing to keep gutters and downspouts free and clear.

Oily stains

Oil-based stains can mar walks, drives, decks and patios at any time of the year. Fluids leaking from vehicles and power equipment are often the cause of such stains. Power washing with the right detergents and degreasers is often the solution. Difficult stains may require pre-treatment with degreasers and other cleaning agents.

About CRS

CRS is a full-service exterior home improvement contractor serving New Jersey since 1977. We provide complete power washing and soft washing services. We also offer roofing, siding, soffit, attic insulation and roof ventilation services. We are a leading northern NJ contractor that is factory-certified by major manufacturers like Owens Corning and GAF.

The team at CRS would welcome the opportunity to discuss house power washing in NJ with you. We can power wash or soft wash your roof, siding and other exterior surfaces. Please contact us today!

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Dean Logan

About Dean Logan

Since he was 10 years old, Dean has been part of the family roofing business. After graduating from Ramapo College Dean joined CRS to continue his journey in the roofing industry. Today Dean is responsible for handling all aspects of the business with his primary focus on business development.