Roof Washing in Kenosha County & Lake County, IL
Remove black streaks and organic growth with a roof-safe approach.
Roof cleaning should not mean blasting shingles.
Black streaks, algae, moss and other organic growth can make a good roof look tired long before its time. Code 3 uses a low-pressure roof-cleaning approach designed around removing contamination without treating shingles like concrete.
If your roof is visibly streaked, green, mossy or unevenly dark, we can evaluate the condition and recommend the appropriate cleaning approach.
Why homeowners choose Code 3
- Targets black streaks, algae and moss
- Low-pressure approach for roofing surfaces
- Improves the appearance of the entire property
- Available throughout Kenosha County and Lake County, IL
Roof washing visuals.
Actual Code 3 project imagery is used where available. Any stock image is clearly labeled and is never presented as a Code 3 job.




Roof Washing across our primary service area.
Code 3 Cleaning is based in Pleasant Prairie and serves homeowners and businesses throughout Kenosha County, Wisconsin and Lake County, Illinois.
Common roof-cleaning questions.
What causes black streaks on a roof?
Black streaks are commonly associated with organic growth and can spread across roofing surfaces over time.
Do you pressure wash shingles?
No. Code 3 uses a low-pressure roof-cleaning approach rather than treating shingles like concrete. Low-pressure soft washing is the method the roofing industry itself points to; what damages shingles is pressure washing, which strips the protective granules off the surface.
Can roof washing remove moss and algae?
Roof washing is designed around algae, moss, black streaks and other organic growth. The exact approach depends on the roof condition.
Where do you provide roof washing?
Code 3 serves Pleasant Prairie and communities throughout Kenosha County, Wisconsin and Lake County, Illinois.
Learn before you schedule.
Practical exterior-cleaning information written for homeowners in Kenosha County and Lake County: what causes it, whether it comes off, and when it is worth doing. See the Cleaning Guides.
What roof washing covers, and what it will not do.
Included
- Asphalt shingle roofs — the large majority of roofs in this area
- Black streaking, algae, moss and lichen
- Gutter faces and fascia in the run-off path
- Pre-rinse and post-rinse of landscaping below the roofline
- A written read on the roof condition before we start
Not included
- Any roof we judge to be too far gone to clean safely — we will tell you and we will not take the job
- Repair, resealing, flashing work or shingle replacement
- Pressure washing of shingles, which strips granules and shortens the life of the roof
- Snow or ice removal
Saying what is not in the price is not a weakness. A surprise at the end of a job costs more goodwill than an honest line on a website ever will.
Every job runs the same way.
Consistency is most of what separates a professional job from a cheap one. This is the sequence, on every property.
The roof gets assessed before anything else
Age, granule loss, soft decking, lifted or brittle shingles, where the growth is concentrated. Some roofs should not be cleaned, and the honest answer is worth more to you than the job is to us.
Everything below the roofline gets protected
Landscaping, walkways and siding are saturated with clean water first and rinsed again afterwards. Run-off goes somewhere, so we decide where before it starts moving.
Low-pressure application
The solution is applied at low pressure and does the work chemically. This is the method the shingle manufacturers themselves point to. Pressure washing a shingle roof blasts off the granules that protect it, and the damage does not show up until later.
Dwell, then rinse
It needs time on the surface to kill the growth at the root. Rushing this is what produces a roof that looks clean for four months and then goes straight back to streaked.
The rest happens on its own
Heavy moss and lichen do not always release the same day. Dead growth loosens and washes off with the next several rains. A roof that still looks patchy on day one is normal and usually not a reason to call us back.
The things you were going to have to ask.
Insured
Code 3 Cleaning carries insurance. Certificates are available on request, and commercial accounts and property managers can have them on file before work starts.
Guaranteed
We do not stop until the job is right. If something is not right when we are done, it gets fixed — that is the whole policy and it does not need small print.
Estimates, usually same day
Most estimates go out the same day. If not, inside 24 hours. You should not have to chase a contractor for a number.
Pay how you want
Cash, check, card, and the common payment apps. Whatever is easiest on your end.
Code 3 Cleaning is firefighter-owned and based in Pleasant Prairie, now in our fourth season. You are dealing directly with an owner, not a call center — which is also why the guarantee above is worth something.
Those black streaks have a name.
The dark streaks running down roofs all over Kenosha and Lake County are a cyanobacteria called gloeocapsa magma. It feeds on the limestone filler in asphalt shingles, it spreads by air, and it thrives in exactly the humid summers this region gets off the lake. That is why it never seems to be one house on a street — it is the whole street, working its way from roof to roof over a few seasons.
It almost always starts on the north-facing slope. That side holds moisture longest, so it colonizes first and stays worst. If your neighbor is streaked and you are not yet, you are on the clock rather than in the clear.
Moss is the more serious version and it shows up on shaded roofs under mature trees, which describes a lot of the older neighborhoods in Kenosha and along the lakefront. Moss holds water directly against the shingle and lifts the edges as it grows. That one is worth dealing with sooner rather than at your convenience.
Straight answers.
How long before the streaks come back?
Depends on shade, tree cover and which way the slope faces. Several years is typical here. A north slope under trees comes back faster than a south slope in the open.
Will it all look clean the same day?
Streaking usually does. Heavy moss and lichen often do not — that growth releases over the following weeks as it dies and the rain works on it. We tell you up front which one you have.
Do you walk on the roof?
As little as possible. Walking a roof risks damage and risks the person doing it. The method is built around not needing to.
What about my gutters and landscaping?
Everything in the run-off path is saturated with clean water before we start and rinsed again after. The gutter faces get cleaned as part of the job.
Is there any roof you would turn down?
Yes. A roof at the end of its life, with significant granule loss or soft decking, should not be cleaned — it should be quoted by a roofer. We will say so and we will not take your money for it.
Does a clean roof actually matter, or is it cosmetic?
Both. It is the largest single surface on the house so it dominates how the property reads from the street. But moss and lichen also hold moisture against the shingle and work under the edges, and that is not cosmetic.
Are you insured?
Yes. Code 3 Cleaning carries insurance and certificates are available on request. Commercial accounts and property managers can have them on file before work starts.
Do you guarantee your work?
Yes. We do not stop until it is right. If something is not right when we are finished, we come back and fix it.
How fast will I get an estimate?
Usually the same day, and inside 24 hours at the latest.
What customers say about Code 3.
Real Google reviews from customers who trusted Code 3 with their property.
“Thanks so much for washing the house and cleaning the fence. Very nice job! Thanks for de-spidering the house:)”
“Matt did a great job. Very pleased with the quality of the work and communication. It helps too that my wife was ecstatic with the results.”
“My house looks great thanks to Code 3 power washing. Not only did they do a great job, they were very professional, they arrived when they said they would and went the extra mile to make sure the house looks great !Thanks Matt”
