I get this question every March. "Alex, when should I have my house washed?"
For most South Jersey homes, the sweet spot is mid-April through late June. Pollen has settled, overnight temperatures stay above 40, and the algae that grew through winter is at its weakest before summer humidity kicks back in. Wash it now and your house stays clean through the heat.
That said, the calendar is only part of the story. Three other things change the right time.
What actually drives the timing
Pollen. South Jersey gets hit with oak and pine pollen from late March through mid-May. Washing during peak pollen is like vacuuming during a snowstorm. Within a week the yellow haze coats your siding again. I usually tell customers to wait until the worst of the pollen drop is past. Look at your car windshield in the morning. If it's clean for two days running, the worst is over.
Algae and mildew. This is the green-black stuff that creeps up the north side of your siding through winter. It feeds on moisture, and South Jersey gives it plenty. By the time you can see streaking, the colony underneath is much larger. Service · learn moreHouse WashingSoft-wash chemistry kills algae at the root. Pressure alone just spreads it.See the page →
Pavers, walkways, and patios. These hold dirt and joint sand washes out over winter. If your patio sees furniture or grill use in summer, get the pavers cleaned and resealed before Memorial Day. Service · learn morePaver Sealing & SandingClean, re-sand, seal. Done right it lasts 3 to 5 years and stops weed growth in the joints.See the page →
What I actually do in spring
Here's the order I work through with most South Jersey homeowners who book a full spring service:
- Gutter cleaning first. All the winter debris comes out before we soft-wash siding. Otherwise we wash everything clean and then have leaves and grit drop onto fresh siding the next windy day.
- Soft-wash the siding. Vinyl, fiber cement, painted wood. All need low pressure and the right chemistry, not a high-pressure blast.
- Concrete and pavers. Surface cleaner pass for even tone, then re-sand and seal the pavers if they're due.
That sequence catches everything in one visit. Most full-spring jobs run a half day.
What about fall?
Fall is a real option too. Late September through early November works for siding washes. Algae growth has slowed, leaves haven't fully dropped yet, and the temperatures are still warm enough for chemistry to work. The catch: gutters get cleaned twice a year if you have mature trees, and the fall round needs to wait until the leaves are mostly down. That's usually late November in South Jersey, which is right at the edge of viable washing weather.
So my general rule: spring is for everything. Fall is for siding and a second gutter pass if you've got heavy tree cover. Service · learn moreGutter CleaningTwo visits a year keeps the downspouts flowing and prevents the big expensive problems.See the page →
What about winter?
Wait. Below 40 overnight, the chemistry doesn't work well and there's a risk of water freezing in cracks. The one exception: emergency cleanup (oil spill, paint splatter, vandalism). For routine cleaning, January and February are not the months.
Common mistakes
- Booking the first warm day in March. Pollen hasn't peaked yet. Wait three weeks.
- Skipping the soft-wash and going straight to pressure. Strips paint, forces water behind trim. Service · learn moreHouse WashingLow pressure plus chemistry kills the algae. High pressure spreads it.See the page →
- Waiting until the house looks dirty. By the time you can see streaks, you've already lost a year of curb appeal and have a bigger job ahead.
Want a quote?
I do a free 15-minute walk-through, look at every surface that needs attention, and give you a firm number on the spot. Most South Jersey spring jobs land between $400 and $700 for a full-package house wash plus driveway. Get an estimate or call (267) 235-1885.
