Maryland & Eastern Shore

5 Star Rated Business on
Google icon
Residential power restoration

Solar Panel Cleaning Services in Maryland

At Keenwick, we clean the solar panels that power Maryland homes and commercial buildings, from residential rooftop systems to larger commercial arrays. Pollen, bird droppings, tree debris, and salt air leave a film that rain does not always clear, and we remove it with gentle, low-pressure methods, so your panels come back clean without scratched glass or stressed seals.

Protect Your Investment with Professional Solar Panel Cleaning

Solar panel cleaning removes the pollen, dust, bird droppings, leaves, and grime that settle on the glass and block sunlight from reaching the cells. When that layer builds up, your system can produce less power than it should.

Panels need a careful touch. Abrasive brushes, harsh chemicals, and high pressure can scratch the glass or wear down its coating, and a strong spray can push water past seals and into wiring. Many manufacturers also publish their own care guidelines, so the wrong method can put a warranty at risk.

At Keenwick, we look at your system first, then clean with soft brushes and a low-pressure rinse. It is the same gentle thinking behind our soft washing service, applied to glass that has to keep working for years. Our technicians are background-checked and trained, so you get consistent, careful results on every visit.

For commercial buildings, a solar panel cleaning service also has to fit around daily operations. We plan access and timing with you so the work causes as little disruption as possible for tenants, staff, and customers.

Our Solar Panel Cleaning Process

We start by walking the property to note where the panels sit, the roof type, how we will reach them safely, and what kind of buildup is on the glass. We also protect nearby plants and landscaping before we begin.

We clean each panel with soft brushes and a low-pressure rinse, never abrasive tools or high pressure. Then we check the array for spots, streaks, and missed edges so every panel looks even and clear. If we notice something that looks off, such as a cracked panel or loose wiring, we let you know so your solar installer can take a look.

Solar panel cleaning pairs well with other work at roof level. Many homeowners schedule it alongside other services so the whole house gets attention in one visit.

What We Clean

Window Cleaning and Power Washing Services

Solar panel cleaning works best as part of a full exterior refresh. Here are the related services we offer across Maryland.

Keenwick team performing residential window cleaning on a modern home, showcasing streak-free, sparkling windows.

Residential Window Cleaning

Streak-free interior and exterior window cleaning, including sills and tracks. A natural add-on when we are already on-site cleaning your panels.

Residential and commercial window cleaning in Annapolis

Roof Washing

Low-pressure soft washing that removes algae, moss, and black streaks without damaging shingles. A cleaner roof means less debris working its way onto your panels.

Exterior home windows being cleaned by Keenwick professionals.

Skylight Cleaning

Careful cleaning for skylights inside and out, clearing grime and buildup so more natural light reaches the rooms below.

gutter cleaning roof annapolis

Gutter Cleaning

Removal of leaves, debris, and buildup from your gutters so water drains away from your roof and foundation the way it should.

Soft washing service on a residential property with customized cleaning solutions tailored for safe and effective results.

Soft Washing

Gentle, low-pressure cleaning for roofs, siding, and other delicate surfaces that heavy pressure can harm.

Commercial building exterior being power washed by Keenwick team

Commercial Window Cleaning

Streak-free interior and exterior glass for storefronts, offices, and multi-story buildings, keeping your property looking professional year-round.

Commercial building exterior being professionally power washed.

Commercial Power Washing

Exterior cleaning for building facades, sidewalks, parking lots, and entryways that removes stains, grime, and buildup safely.

The Quality That Sets Us Apart

Contact us today

Our stellar reviews

Posted on Google Google
Josh C profile picture
Josh C
0 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Keenwick sent Eric over this morning to power wash our house and he did an incredible job! He showed up within the VERY reasonable 30 minute window, he was polite, left no mess, and did not take nearly as long as I thought it would. 5 stars easy.
Posted on Google Google
Michael Schaal profile picture
Michael Schaal
1 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
The guys did a great job on the window.
Posted on Google Google
Don Benson profile picture
Don Benson
1 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Always thorough, polite and efficient.
Posted on Google Google
laura baker profile picture
laura baker
8 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Keenwick staff did an awesome job cleaning our windows and screens!
Posted on Google Google
Robert Miller profile picture
Robert Miller
14 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Keenwick did an outstanding job cleaning my exterior windows this morning. I highly recommend this company.
Posted on Google Google
Carolynne profile picture
Carolynne
15 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Always do a good job. They get the ugly black stuff off the decks and railings! Do a good job on the windows, get it done quickly. Always pleasant. Fair pricing.
Posted on Google Google
Teresa Sadeghin profile picture
Teresa Sadeghin
15 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
OMG! This service was unbelievable! Punctual, respectful, on target with his work and we just can't say enough positive!
Posted on Google Google
Dennis Keppley profile picture
Dennis Keppley
19 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
This company is wonderful to work with. The offic personnel were so helpful and kind. Our windows were completed promptly and in a professional manner. Overall, a great job by all.
Posted on Google Google
cDolores Provins profile picture
cDolores Provins
19 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
work was done on time, promptly, and efficiently. Work was also done well.
Posted on Google Google
Alfred Edwards profile picture
Alfred Edwards
20 days ago
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Eric was here on time and worked diligently to remove the iron deposits on my house. Considering the challenge, he did a great job and I am very happy with the results. I strongly recommend Keenwick for home/house cleaning requirements.

Frequently Asked Questions about Solar Panel Cleaning in Maryland

How much does solar panel cleaning cost?

It depends on the number of panels, how they are mounted, how easy they are to reach, how much buildup is on the glass, and whether you bundle the visit with other exterior cleaning. A small ground-level array and a steep two-story rooftop system are very different jobs, so we do not use one flat price for every property. Reach out for a free quote based on your specific system.

For many Maryland properties, yes. Rain rinses away light dust, but it often leaves behind pollen film, bird droppings, tree sap, and salt residue near the Bay and the coast. Those block sunlight and can lower what your system produces. If your panels look dull or spotted, or your output has dropped without another clear cause, a professional cleaning is a sensible step. If they still look clean after a good rain, you may be able to wait.
The best solar panel cleaning service is one that uses soft, non-abrasive methods, carries insurance, works safely at roof height, and tells you honestly what cleaning will and will not fix. A search for “solar panel cleaning near me” will turn up plenty of options, so ask each company how they clean, what they use on the glass, and whether they follow manufacturer care guidelines. Keenwick has cleaned glass and exteriors across Maryland since 1999, with insured, background-checked technicians.
Sometimes. Ground-mounted panels you can reach safely can often be rinsed with a garden hose and a soft brush, following your manufacturer’s instructions. Rooftop panels are a different matter. Working on a wet roof next to electrical equipment is a real fall and safety risk, and pressure washers, abrasive pads, and harsh detergents can damage the glass. For anything on a roof, we recommend hiring a professional.
Soft brushes, clean water, and low pressure. The goal is to lift grime without scratching the glass or forcing water into seals and wiring. Many professionals rinse with purified water so no mineral spots are left behind. It also helps to clean when the panels are cool, since cold water on hot glass can stress it. Avoid pressure washers, abrasive tools, and harsh chemicals, and check your manufacturer’s care guidelines first.
There is no single schedule. It depends on the tilt of the panels, nearby trees, bird activity, and how close you are to the water. Many owners check their panels once or twice a year and clean when they see visible buildup or a dip in output. We can look at your system and suggest a timing that makes sense for your property.
Yes. We clean solar panels for commercial buildings as well as homes. We plan access and scheduling around your operations, and we can combine the visit with window cleaning or power washing so the whole property is handled together.

Your Local Experts in Exterior Care

Trusted Window Cleaning & Power Washing Pros

Contact Keenwick for deck cleaning

Contact us today!