Solar Panel Cleaning in Denver & the Colorado Front Range
Starting at $150 · Licensed & Insured · 5-Star Rated
Colorado's sunshine is a gift — we average 300+ sunny days a year, which is why so many Front Range homeowners go solar. But Colorado's other weather — dust storms, pollen, pine drop, wildfire smoke residue, bird droppings, and hail grit — is steadily cutting your panels' output. NREL studies show soiling reduces solar output by 5-25% depending on location and cleaning frequency. In Colorado's dusty dry climate, real-world losses trend toward the higher end.
Cleaning panels recovers that output. We do it safely, without abrasive pressure, and without walking on your panels.
Why rain alone doesn't work
Front Range rain is often brief and dusty itself — it lands already carrying particulate, leaving spots. The dry months between rains let grime bake on hard. And rain never fully rinses the lower edges where a "tide line" of dust accumulates. You need an actual cleaning once or twice a year to recover peak output.
Safety first
We access panels from ladders and extension poles — no walking on the array itself. Walking on panels can microfracture cells (invisible but reduces output long-term) and voids many warranties. Our 45-foot carbon-fiber water-fed poles handle the vast majority of Front Range residential installs.
Pure water matters
Tap water leaves mineral spots. Denver-area water is hard (140-220 ppm), and those deposits actually reduce panel output over time. We use RO/DI-filtered water (sub-10 ppm TDS) that dries completely clean with zero residue.
Our process
- Monitor current output with homeowner (if inverter data is accessible)
- Use deionized pure-water system with soft brush extension pole
- No harsh detergents, no abrasive scrubbers, no high pressure
- Rinse completely and let air-dry (DI water dries spot-free)
- Inspect for cracked cells, loose connectors, and critter damage while up there
- Post-cleaning output check (most homeowners see 10-20% gain within 48 hours of sun)
Typical pricing
Small array (10-15 panels): $150-$225. Medium array (16-25 panels): $225-$375. Large array (26-40 panels): $375-$550. Ground mounts often priced lower due to easier access. Once or twice a year in most cases.
Frequently Asked Questions
Will cleaning actually increase my output?
Yes, measurably. Most customers see 5-20% output increase immediately after cleaning, with the biggest gains on panels that haven't been cleaned in 2+ years.
Will you void my warranty?
No — we use manufacturer-recommended methods (pure water, soft brush, low pressure). Warranties are typically voided by walking on panels or using abrasive chemicals, which we don't do.
Can I clean them myself?
You can, but it's riskier than it looks. Panels are slippery when wet, roofs are high, and hard-water spots from hose-cleaning actually reduce output.
What about snow?
Panels usually shed snow themselves once sun hits them. We don't recommend clearing snow off panels manually — shovels can scratch, and the ice-hardened dirt underneath can scratch too.
Ready for Your Free Quote?
Tell us about your project and we'll get back within 24 hours with an honest, transparent estimate — no sales pressure, no hidden fees.
- ✓ Free, no-obligation estimate
- ✓ Licensed & insured, $1M general liability
- ✓ 5-star rated across the Front Range
- ✓ Satisfaction guaranteed
Prefer to call?
(720) 988-4540