7.4%
Efficiency lost after 145 days with no rain or cleaning1
A study of 186 California solar sites. Researchers found cleaning pays off for systems downwind of agricultural fields.
Solar panel cleaning · Oakdale, CA
Clean panels.
More power.
Dust from Central Valley farms, orchards and dirt roads settles on your solar panels all summer long, and our dry season doesn't rinse it away. Weber Solar Care gets your system back to producing what it should.
- Residential & commercial
- Roof & ground mount
- Pure-water, panel-safe cleaning
- Bird & critter guards installed
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We'll reach out shortly to schedule your cleaning and confirm pricing.
Why clean your panels
Dirty panels make less power
Sunlight has to reach the solar cells to make electricity. A layer of dust, pollen, ash or bird droppings blocks part of that light, and your system quietly produces less every day it sits there.
Up to 2×
More output after washing dirty flat-mounted panels2
Google washed its flat carport panels and saw output double. Flat and low-tilt panels trap the most dirt.
~0.3"
Average total rain in Oakdale, June through September3
Four months with almost no rain means dust builds up all summer, right when your panels should be producing the most.
Aug–Oct
Almond harvest, the Valley’s peak dust season4
Mechanical almond harvest runs from mid-August through October, sending dust drifting across the region.
Bird droppings and wildfire ash stick harder than dust and usually won't rinse off in the rain. The U.S. Department of Energy advises removing ash to restore optimal efficiency.5
How it works
Clean panels in three simple steps
- 1
Request a free quote
Fill out the quick form or give us a call. Tell us about your home or business and your system.
- 2
We clean it the right way
Pure water, soft brushes and a gentle low-pressure rinse, done early while panels are cool.
- 3
Get your full power back
Your panels go back to producing what they should. If you have a monitoring app, check the numbers.
Built for Valley dust
Oakdale panels work in tough conditions
Our area is surrounded by almond and walnut orchards, farms and ranches. That's great for the Valley, but it's hard on solar panels. Tilted panels in rainy climates mostly stay clean on their own. Ours sit through a long, dry, dusty summer.
When we recommend cleaning
- Early summer, before peak production months
- After harvest (October–November), once the dust settles
- More often next to an orchard, field or dirt road, or for ground-mount arrays
Orchards & farm fields
Harvest, discing and field work kick up fine dust that drifts for miles.
Dirt roads & ranch land
Every passing truck adds another layer, especially on ground-mount arrays.
Wildfire smoke & ash
Ash is sticky and can leave a film that rain alone won’t lift.
Birds & pollen
Droppings block light completely on the cells they cover.
Services
Residential & commercial systems
Roof mount or ground mount, cleaned safely and done right.
Residential
Homes of every size across Oakdale and the Central Valley. We schedule around you and keep your roof and landscaping protected.
Commercial
Businesses, ag operations, schools and multi-building sites. Larger systems lose more money to dirt, so cleaning pays off faster.
Roof Mount
Careful, panel-safe cleaning on pitched and flat roofs. Extension poles let us reach every panel from a safe spot.
Ground Mount
Ranch, farm and commercial ground arrays. They sit closest to the dust, so they usually get dirtiest fastest.
Bird & critter guards
Keep birds and critters out
The gap under rooftop panels is a sheltered spot for pigeons and other birds to nest, and for squirrels and rodents to move in. We install durable mesh guards around the edge of your array to close it off.
- Stops nests and debris packed under your panels
- Stops droppings that stain panels and won’t rinse off
- Stops squirrels and rodents that can chew exposed wiring
- Stops noise and mess from birds roosting on your roof
Best done together: we clean your panels and clear out any nests first, then install the guards so your system starts clean and stays protected.
Ask About Critter Guards
How we clean
The right way to clean solar panels
Gentle methods that get your panels fully clean without risking the glass, frames or seals.
- 01
Pure water
Deionized water rinses clean without leaving mineral spots behind.
- 02
Soft brushes
Non-abrasive brushes lift dirt without scratching the glass.
- 03
Low-pressure rinse
Gentle, low-pressure nozzles rinse panels clean. Never a high-pressure blast that can damage them.
- 04
No harsh chemicals
No acids, degreasers or soaps that can harm the glass or frames.
- 05
Cool panels
We clean early in the day, while panels are cool, to avoid thermal shock.
- 06
Extension poles
Long-reach poles let us clean every panel carefully, even on hard-to-reach arrays.
Service area
Based in Oakdale, serving the Central Valley
We're local. From homes in town to ranches and commercial sites out in the country, if you're in the area, we'll come to you.
- Oakdale · home base
- Riverbank
- Modesto
- Escalon
- Waterford
- Turlock
- Ripon
- Manteca
- Stockton
- …and surrounding Central Valley communities
FAQ
Common questions
Don't see your question? Call us or send a quote request and we'll help.
Doesn't the rain clean my panels?
Rain helps tilted panels in wetter climates. Here, Oakdale averages only about a third of an inch of rain from June through September, so dust builds up all summer. Rain also won't remove bird droppings, ash films or the grime that collects on flat or low-tilt panels. A UC San Diego study found cleaning is especially worthwhile for systems downwind of agricultural fields.1
How often should I have my panels cleaned?
For most Central Valley homes we recommend at least once or twice a year: once in early summer and once after the fall harvest dust settles. If you live next to an orchard, field or dirt road, or have a ground-mount system, more frequent cleaning usually makes sense. We can suggest a schedule after we see your system.
Will cleaning void my panel warranty?
The wrong kind of cleaning can. High-pressure blasting, harsh chemicals and abrasive tools can damage panels. We use purified water, soft non-abrasive brushes and a gentle low-pressure rinse.
Do you clean commercial and ground-mount systems?
Yes. We clean residential and commercial systems, on roofs or on the ground, including farm, ranch and business arrays.
Do you install bird and critter guards?
Yes. We install mesh guards around the edge of rooftop arrays to keep pigeons, squirrels and rodents from nesting under your panels. We usually clean the panels and clear any nests first, then install the guards. Check the box on the quote form and we'll include it.
How do I get a quote?
Fill out the quick form at the top of this page or give us a call. We'll follow up to learn about your system and give you pricing.