Roof Cleaning in Oldwick, NJ
Low-pressure soft wash that lifts black streaks, moss & algae without touching your shingles.
Roof Cleaning in Oldwick, NJ
If you live in Oldwick, you already know the tradeoff that comes with those beautiful tree-lined lots off Old Turnpike Road and the streets around the village center: shade is great in July, but it keeps roofs damp, and damp roofs grow moss, lichen, and that ugly black streaking (it's actually a cyanobacteria called Gloeocapsa magma, not dirt). North sides and the shaded slopes tucked under mature oaks tend to get it worst around here.
Gallo Bros is a family-owned exterior cleaning company working across North Jersey and Hunterdon County. For roofs we soft wash — low pressure and the right cleaning solution — instead of blasting shingles with a pressure washer. On the older asphalt roofs and the odd cedar shake you still see on some of Oldwick's historic homes, high pressure strips granules and voids warranties. Soft washing kills the growth at the root so it doesn't come sprinting back.
We stay honest about scope. If your roof genuinely needs a roofer, we'll tell you. If it just needs cleaning, we'll clean it, keep the runoff off your plantings, and leave the property the way we found it.
- Local crew that knows Oldwick homes
- Soft-wash & low-pressure methods that protect your surfaces
- Licensed, insured & background-checked
- Upfront pricing — same-week scheduling
More services in Oldwick
Roof Cleaning near Oldwick
What neighbors say
5.0 · 854+ Google reviews“Absolutely outstanding job by the Galo Brothers today power washing our house! Honestly the best power washing job we have ever had done. The house looks brand new again, every detail was handled with care, and the difference is unbelievable. They were professional, thorough, hardworking, and took real pride in their work. It’s rare these days to find a company that exceeds expectations, but they absolutely did. Highly, highly recommend the Galo Brothers to anyone looking for top notch service and incredible results!”
Bruce Bosland
“Gallo Bros powerwashing team headed up by Joe, did a great job on our exposed, lakefront home. They went above and beyond to remove dirt and mildew from our house siding, soffits and multiple bluestone patios and walkways, as well as our dock and wood furniture. They also took great care to avoid or work around multiple bird nests which had recently hatched babies pre fledge. I will definitely call them in the future!”
Cathy Marshall
“We hired Gallo Bros Power Washing to power wash, re-sand and seal our 20 year old paver patio and front walk. They also performed a few repairs and reset a few areas that needed attention. We had never had this done professionally before. From the beginning estimating phase to the final coat of sealer, we were very happy with the services provided, the price and the final result, which they also warrantee for 1 year. I highly recommend Gallo Bros. Power Washing and will use them for other services in the future.”
Andrew O
Roof Cleaning in Oldwick — FAQ
Will pressure washing damage my Oldwick home's roof?
It can, which is why we don't do it on roofs. We use soft washing — low pressure plus a cleaning solution — so shingle granules and any older cedar shake stay intact and manufacturer warranties aren't voided.
Why does my roof get so streaky and mossy here?
Oldwick's heavily wooded lots mean lots of shade and moisture, especially on north-facing slopes. That's ideal for algae, moss, and lichen. Overhanging branches drop debris that holds water, too, which speeds things up.
When is the best time to have my roof cleaned?
Spring through fall is easiest in Hunterdon County. We avoid freezing temps and heavy rain days. If you've noticed growth building up over a wet NJ winter, spring is a good time to knock it back.
How long does the roof stay clean?
Because soft washing treats the growth at the root rather than just rinsing it, results typically last a few years. Heavily shaded roofs may need attention sooner than sunnier ones.
Do you protect landscaping from the cleaning solution?
Yes. We manage and rinse runoff and take care around plantings and beds. If you have anything specific you want watched, tell us before we start.
How much does roof cleaning cost in NJ?
It ranges widely — from a few hundred dollars for a small ranch to several thousand for a large, steep or complex roof. Size, pitch, material, access and how much algae has built up all factor in. You get a firm price up front, free.
Will roof cleaning damage my shingles?
No. We soft wash with low pressure and a cleaning solution — the method asphalt-shingle makers recommend. High-pressure washing is what damages roofs; we never do that on a roof.
What are the black streaks on my roof?
That's a hardy algae called Gloeocapsa magma. It feeds on the limestone in your shingles and spreads in New Jersey's humidity. Soft washing kills it at the root, not just the surface.
How long does a roof cleaning last?
Usually 2–4 years. Because soft washing kills the algae instead of just rinsing it, the clean lasts far longer than a quick power-rinse.
North Jersey · 854+ five-star reviews
Pick your own time
Choose a slot that actually suits you and it's confirmed on the spot — no phone tag, no waiting on a callback.
- A real person comes out and prices the work in front of you
- Exact price before anything starts, in writing
- Free, and there's no obligation to book the job
Rather talk it through?
(973) 500-8155info@gallobrospw.com