Lichen removal
Lichen patches are sprayed and left to loosen then wash away over time.
Exterior Services
Roof Cleaning Morristown, NJ
A roofing contractor in Morristown can clean shingle, tile and metal roofs with the right solution and gentle rinsing instead of a pressure washer, with tips to keep the streaks from returning. One call to (862) 363-5004 reaches a nearby roofer who handles roof cleaning.
Those black streaks running down a shingle roof are almost always algae, not dirt or mold from inside the house. As it spreads, it darkens the roof in long streaks, usually starting on the north side or under trees. It is mostly a cosmetic problem at first, but lichen and moss tend to move in alongside it, and those do damage shingles over time.
The method decides whether cleaning helps the roof or shortens its life. High-pressure spray tears granules off shingles and can break tile, so the safer method is a soft wash. Soft washing uses a cleaning mix and gentle rinsing to kill algae and lichen, and lets the roof dry naturally.
A few details help plan the cleaning. Write down which parts of the roof are stained and whether you see green moss, gray lichen or just dark streaks. Say whether the roof is asphalt, tile, metal or wood, and what is planted along the house.
If the problem goes deeper than it first looked, a Morristown roofer may also recommend roof moss removal or gutter cleaning.
Dealing with this in Morristown, NJ right now? Call (862) 363-5004 and describe the problem to a roofer who works in Morristown.
Call nowThe process
The roof cleaning process
A roof cleaning protects the house and yard before any solution goes on the roof.
Check the surface
Before any spraying, the roof is checked for loose shingles, cracked tiles and worn flashing that the cleaning should not disturb. Problems hidden under the grime often show up here.
Protect the yard
Plants and lawn near the house are watered down, and delicate shrubs may be covered. Siding and windows are rinsed to keep the solution from drying on them.
Apply the soft wash
A low-pressure sprayer applies the solution evenly, letting it soak in to kill the growth. Shingles, tile and metal each get a solution suited to them.
Rinse gently
After the solution works, loose debris is swept from valleys and the gutters are cleared. Heavy lichen can take several rains to wash away fully.
Clean up below
Plants, siding and walkways are rinsed again with clean water, and the roof is checked one last time. The roofer notes any shingles or flashing that need repair.
What is included
Roof cleaning a roofer can handle
Debris removal
Built-up debris is swept off the roof before it holds moisture.
Streak cleaning
Dark streaks on shingles are treated and rinsed across every stained slope.
Tile roof cleaning
Metal roofs are washed to remove grime and staining so the surface is not harmed.
Regrowth prevention
Zinc or copper strips can be installed near the ridge after the roof is cleaned.
Related service
Roof Soft Wash Morristown, NJ
A roof soft wash cleans the roof with a solution and low-pressure spray instead of a high-pressure stream. The solution, often a diluted sodium hypochlorite mix with a surfactant to help it cling, kills algae, lichen and moss spores where they grow. The gentler approach protects granules, laps and sealant strips.
For Morristown roofs, soft washing is the method most roofers recommend over pressure washing. Gardens below the eaves are soaked first and rinsed again at the end. Expect algae to clear first and crusty lichen to fade over the following weeks.
Related service
Roof Cleaning Service Morristown, NJ
Professional roof cleaning covers prep, treatment, debris removal and cleanup, done from a ladder or with roof safety gear. Roofs become slick once wet or treated, and falls from roofs are a real hazard. While cleaning, a roofer can flag loose shingles, cracked tiles and failing pipe boots.
In Morristown, many homeowners pair roof cleaning with gutter cleaning, since the gutters fill with debris washing off the roof. Zinc or copper strips installed near the ridge help slow regrowth, as rain washes metal ions down the roof. Cutting back overhanging limbs lets the roof dry faster.
Local help
Roof Cleaning Near Me
Roof cleaning calls in Morristown come from homes with shaded roofs, older shingles and newer roofs that have started to streak alike. Across Morristown and nearby communities including Cedar Knolls, Morris Plains, Whippany and Madison, roofs near tall trees and in shady lots are the ones that need cleaning most often, which is why the cleaning method matters as much as the result.
Searching for roof cleaning near me from Morristown or Cedar Knolls, Morris Plains, Whippany and Madison? Call (862) 363-5004 to talk to a roofer who works in your part of town.
What the local climate does to a roof
Winters here are long and cold, with snow on the roof for weeks at a time and plenty of nights below freezing. Heat escaping from the attic melts snow on the upper roof, and the water refreezes at the colder eaves, building ice dams that push water up under the shingles. Strong coastal storms push rain into every weak spot at the flashing and valleys. Most homeowners in Morristown, NJ have the roof checked in the fall and again after the snow melts.
Why call
Why fix it now
Less damage
A roof problem fixed early rarely spreads to the decking, the insulation or the ceilings.
Roofers who know Morristown
Local roofers see the same roofs and storm damage across Morristown and nearby towns.
Clear next steps
Ask your questions before you agree to anything.
Common questions about roof cleaning
What causes black streaks on my roof?
Most dark roof stains come from a hardy algae that spreads on the wind. It thrives in shade and moisture and spreads down the slope with rainwater. Shade, trees and humidity all make it worse.
Is pressure washing safe for my roof?
Pressure washing is not recommended for asphalt shingle roofs. It wears down the surface that protects shingles from the sun. A low-pressure soft wash cleans the roof without that damage.
How often should a roof be cleaned?
Most roofs need cleaning only every few years, depending on shade and moisture. Roofs under trees or on shaded slopes may need it more often. Cutting back trees helps too.
How are plants protected during roof cleaning?
Good roof cleaners pre-wet and rinse landscaping to dilute any runoff. Covering sensitive plants and diverting gutter runoff adds protection. Mention any prized plants before work starts.
Does roof cleaning make my roof last longer?
Cleaning helps most when lichen or moss is present, since they damage shingles over time. A clean roof also lets a roofer spot damage that grime was hiding. Cleaning the wrong way, with high pressure, shortens roof life instead.
More questions? Call (862) 363-5004
Related services
Roof Moss Removal
Gentle moss removal and treatment that kills the roots and slows regrowth, and repairs to any shingles the moss damaged.
Learn moreGutter Cleaning
Gutter cleaning that clears leaves, needles and sludge by hand, then flushes the gutters and downspouts, with a check of the seams and hangers along the way.
Learn moreRoof Maintenance
Seasonal roof maintenance for shingles, flashing, vents, gutters and attic airflow, with each task done the right way for the material.
Learn moreCedar Shake Roof Repair
Cedar roof repairs from single cracked shakes up to worn ridge caps and open valleys, so a sound cedar roof keeps shedding water.
Learn more
Looking for something else?
See all roofing servicesGet roof cleaning help in Morristown
Call (862) 363-5004 for a local roofer in Morristown and nearby towns.