Casselberry’s live-oak canopy keeps roofs shaded and damp for most of the year. That constant moisture, paired with Central Florida humidity and summer storm cycles, feeds the black algae streaking that darkens shingles, settles into tile valleys, and comes back fastest on north-facing slopes and tree-covered streets.
We treat every roof with a soft wash, a low-pressure chemical application and a full rinse that lifts the algae without damaging the surface underneath. Because a single Casselberry street can mix asphalt shingle next to concrete tile next to metal, we match the solution strength and the approach to each roof rather than running one recipe across everything.
If your roof is streaked, faded, or just overdue, call us for a free quote on your Casselberry roof at (407) 276-1343.
We handle every roof type found across Casselberry. Here is how we approach each one.
We soft wash asphalt shingle with a low-pressure application and a full rinse, removing the algae without stripping the protective granules that high pressure would blast loose. Asphalt shingle is the most common roofing material across Casselberry’s single-family neighborhoods and older east-side subdivisions.
Flat tile calls for a higher chemical strength than shingle, applied at low pressure and fully rinsed. We work the shaded valleys where streaking collects and hides between cleanings. Flat tile is common on the stucco homes and townhome rows around Casselberry.
Barrel tile is sprayed from each angle so the solution reaches into the curves and the shaded barrel valleys, then fully rinsed. The curved profile takes more time and care than a flat roof. You will find barrel tile on Mediterranean-style stucco builds in the Legacy Park belt.
Metal roofs get a soft wash matched to the panel finish, with a complete rinse so nothing sits on the surface. No pressure touches the metal, so the coating stays intact. Metal shows up on a smaller share of Casselberry homes and outbuildings.
Clay tile is denser than concrete tile, so it holds moisture differently and needs its own chemical strength. We soft wash it with the same angled technique used on barrel profiles, then rinse completely.

Slate is softer than it looks, and pressure will chip it. We clean it with a gentle soft-wash application and a thorough rinse at the lowest effective strength so the stone stays intact.
TPO roofs with warranty restrictions are cleaned with Dragon Juice, a safe degreaser that won’t dry out rubber seals. This keeps the roof clean without voiding the warranty.
Most of our roof work is residential, with commercial flat-roof capability built on top of it. The soft-wash method stays the same on both sides. What changes is the roof type, the height, and the scheduling.
Whether your home carries shingle, tile, or metal, the approach stays the same: soft wash only, matched to the material, with a full rinse before we leave.
We clean commercial flat and low-slope roofs, including TPO, for property types such as retail buildings, storefronts, apartment communities, and HOA-managed buildings around Casselberry.
A few things come up again and again in what our customers tell us. They are the standards we hold on every roof.
Every roof, every siding type, and every pool screen we clean gets a soft wash, a low-pressure chemical application and a full rinse. We save real pressure for concrete, where it belongs, so the surfaces that high pressure damages stay protected. If your driveway or walkway needs that kind of cleaning, that falls under our Casselberry pressure washing work. On a roof, that means the shingles keep their granules, tile keeps its finish, and metal keeps its coating.
Protection runs through every visit: outlets, doorbells, cameras, and garage-door openers taped and sealed, plants pre-rinsed, downspouts bagged with a Neutropod to neutralize bleach, and pool decks rinsed away from the water. On a roof job, the Neutropod and plant pre-rinse do the heaviest lifting, and the full rinse at the end makes sure no bleach sits on the surface or drips into the landscaping.
You don’t have to be home. You’ll get a text with our arrival time, before-and-after photos when we’re done, a digital invoice, and a secure online payment link. A follow-up call comes a few days later to make sure everything still looks right. The whole job runs from estimate to payment without you rearranging your day.
We use the lightest effective chemistry for each surface, dialing strength up only when the job demands it. Sodium metasilicate cleans wood without bleaching its color, oxalic acid at minimum strength handles rust, and Dragon Juice replaces bleach on TPO roofs with warranty restrictions. On a residential roof, that means shingle, tile, and metal each get the solution strength matched to the material rather than a single mix forced across all three.
Every roof job follows the same steps, from first contact to follow-up. Here is what to expect.
Reach out by form, phone, or text. Our office answers personally and gathers the details on the first contact. Phone-answered hours are Monday through Friday, 8 AM to 6 PM.
A short call to clarify exactly what your roof needs, whether that is heavy black streaking on shingle, tile work, or a two-story access job, so we scope it correctly before quoting.
You receive a written estimate priced by square footage, with the roof material and the number of stories factored in. Realistic outcomes are put in writing before you approve anything.
Once you approve the estimate, you are placed on the schedule with a confirmed service date.
The crew texts an ETA, bags the downspouts with a Neutropod to neutralize bleach, and cleans from the ground with our long-reach machine (up to roughly four stories) so no one walks your roof. The entire surface is soft washed, spot-checked, and fully rinsed so no bleach sits and dries. Any damage found (loose shingles, cracks, flashing issues) is documented with photos via smart glasses and reported to you before the crew proceeds.
Before-and-after photos, a digital invoice, and a secure online payment link arrive by text or email. A follow-up call a few days later confirms everything still looks right and gives you time to flag anything.
Every quote is free and based on your roof’s square footage, material, and the number of stories. Here is what to expect.
At Holliday’s Pressure Washing Services, our work is guided by pride, reliability, and respect for our customers’ homes. We are fully licensed and insured, and every job is approached with attention to detail and care.
We believe great service starts with honest communication and ends with results you can see. If something is not right, we take the time to address it because lasting trust matters more than cutting corners. From protecting landscaping to ensuring safe and effective cleaning methods, we are committed to quality from start to finish.
Casselberry is a place where people settle in and stay, with neighborhoods that have grown up under the same oak canopy for decades. We clean these roofs the way we would clean a neighbor’s, because the work happens on the same streets our crew drives every week.
You will find us around the shaded older subdivisions and lakefront streets where black streaking returns fastest:

A free written quote covers the square footage, the roof material, and the realistic outcome before any work begins. Casselberry’s shaded, tree-heavy streets bring the black streaking back on a cycle, so a soft wash on your schedule keeps the roof looking clean year after year. Call (407) 276-1343 or reach out online and we will get back to you with a detailed estimate.