Power Washing in Mendham, NJ
Driveways, walkways, patios and concrete brought back to like-new.
Power Washing in Mendham, NJ — Done by People Who Know Your House
Mendham is a tough town to clean right if you don't actually look at the house in front of you. Up in the Borough's historic core along Main Street, you've got older clapboard and stucco homes where blasting a surface with high pressure cracks paint and drives water behind trim — those need a low-pressure soft wash, not a pressure gun.
Head toward the big wooded lots off Tempe Wick Road and Mountainside Drive and the story changes: cedar shake and shingle homes sitting under heavy oak and maple canopy. That shade plus North Jersey's humid summers is exactly what black algae (Gloeocapsa) and green mildew want. You'll see the streaking worst on the north and east faces that never dry out, and on asphalt roofs where the dark stains are literally algae eating the shingle granules.
Down at ground level, the Belgian-block aprons and paver driveways around town take a beating from freeze-thaw and winter road salt — weeds and grime settle into the joints every spring. We handle all of it: roof and house soft washing, paver cleaning, driveways, gutters, and windows.
- Local crew that knows Mendham homes
- Soft-wash & low-pressure methods that protect your surfaces
- Licensed, insured & background-checked
- Upfront pricing — same-week scheduling
More services in Mendham
Power Washing near Mendham
Recent work in Mendham
Real jobs, real Mendham homes — straight from our crew's cameras.
What neighbors say
4.9 · 922+ Google reviews“The wash crew - Raymond, Bobby and Bashar did a fantastic job! Super friendly and definition to detail. Great crew! Everything was great again. Sand crew Oscar and Gerardo were super friendly, polite and did a fantastic job.”
Frank Gesualdo
“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
“Before and after photos attached. Gallo Bros Power Washing is a must. Our pavers were full of weeds which took me hours to pull out only to have to do again a week later when they grew back. With two short days, our pavers looked brand new. After the men power washed our pavers, my husband and I could barely believe they did not totally replace them haha When they arrived day 2 to fill in and sand the pavers, again we were speechless. Our yard looks completely new. We are so appreciative of the quick and professional work they did as well as the friendliness and quick responses we received. Highly recommend this service!”
Elizabeth LiPuma
Power Washing in Mendham — FAQ
My Mendham house has cedar shakes under a lot of tree cover — can you clean it without wrecking the wood?
Yes. Cedar can't take high pressure, so we soft wash it with a low-pressure application and the right cleaning solution to kill the mildew and algae the shade and humidity feed. It lifts the growth without blowing out the grain or splitting shakes.
There are dark streaks running down my asphalt roof — will power washing hurt it?
Those streaks are Gloeocapsa algae, common on shaded Mendham roofs, and you should never pressure-wash a roof. We use a soft wash that chemically kills the algae and lets it rinse off over the following weeks, so the shingles and granules stay intact.
My paver driveway with the Belgian-block border gets grimy and weedy every spring — can you fix that?
Yes. After the freeze-thaw and road salt of a North Jersey winter, we clean the pavers and joints, clear the weeds and growth, and can re-sand and seal to help them hold up through the next season.
How much does power washing cost in NJ?
Most jobs run about $200–$500 depending on the surface and square footage. Driveways, walkways and patios are priced by size — you get a firm quote free.
What can you power wash?
Concrete driveways, walkways, patios, pavers, decks and other hard surfaces. For roofs and siding we switch to soft washing so nothing gets damaged.
Can power washing remove oil and rust stains?
Most of them, yes. We use surface cleaners and targeted treatments for oil, rust and grime. Deep-set stains may lighten rather than vanish — we'll tell you straight before we start.
North Jersey · 922+ 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