Looking for roof cleaning for tile roofs in Norristown, PA? We look at the surface first, choose the right method and pressure for it, and give you a price before any work starts. On tile roofs, the method we use is soft wash.
How we clean it
Cleaning solution: A soft wash solution; moss and lichen may need a second application.
Caring for tile roofs
Clay and concrete tile roofs grow algae, moss and lichen, especially in shade. Tiles are brittle when walked on, so roof access is planned carefully and the roof is cleaned mostly with solution.
Avoid: High pressure, which erodes the surface of concrete tile, and stepping on the middle of tiles.
How often: Every 3-5 years.
Signs you need roof cleaning for tile roofs
- Black or dark streaks running down the roof
- Green moss or lichen spots, often on the north side
- Roof looks older than it is
- Moss lifting the edges of shingles
- A home inspector or insurer has noted roof growth
Why it gets dirty
- Roof algae (often Gloeocapsa magma) spread by wind
- Shade from trees and the north-facing side staying damp
- Debris piles in valleys that hold moisture
- Moss and lichen that root into the roof surface
What you can do yourself
- Keep valleys and gutters clear of leaves and pine needles
- Trim branches to let in sun and air
- Consider zinc or copper strips near the ridge to slow regrowth
- Look from the ground with binoculars instead of climbing on the roof
Not sure what you're looking at? The free stain identifier and safe pressure guide explain each stain and surface.
What can go wrong with DIY pressure washing
- Pressure washing strips granules and can void a shingle warranty
- Falls from a slippery, wet roof
- Chemical runoff that burns plants below
- Water forced under shingles and flashing
How we handle roof cleaning for tile roofs
- Check the roof type, pitch and condition from the ground and ladder
- Pre-wet and protect plants and cover sensitive areas
- Apply a soft wash solution suited to the roofing material
- Let it work, then rinse gently or let rain finish the job as recommended
- Rinse gutters, downspouts and plants and check the results
How much does roof cleaning for tile roofs cost?
What moves the price:
- Size: square footage of siding, roof or flatwork
- Condition: heavy growth, old stains and peeling finishes take longer
- Access: number of stories, roof pitch, slopes and how close we can park
- Add-ons: sealing, gutter brightening and other services done in the same trip
These are typical U.S. ranges, not a quote. You get an exact price before any work starts. For a quick estimate, try the pressure washing cost calculator.
Other services for tile roofs
Roof Cleaning for Tile Roofs in Norristown, PA
Black algae streaks are common on asphalt roofs in Pennsylvania, particularly on north-facing slopes and under trees. Soft washing removes them without stripping the granules that protect the shingles.
Crews serve all of Norristown (ZIP codes 19401, 19403 and 19404), plus Bridgeport (1.2 mi), East Norriton (2 mi), West Norriton (2.1 mi) and Conshohocken (3.6 mi). Call (555) 010-0000 for a free quote in Norristown.
Roof Cleaning for Tile Roofs: frequently asked questions
How much does roof cleaning for tile roofs cost in Norristown, PA?
Roof Cleaning for Tile Roofs typically costs $400-$1,000 for a typical single-story or two-story home, and usually takes 2-4 hours. The exact price depends on the size and condition, and you get it before any work starts. Call (555) 010-0000 for a free quote.
Do you use high pressure for roof cleaning for tile roofs?
For tile roofs: soft wash; low pressure only on sound concrete tile. What we avoid: high pressure, which erodes the surface of concrete tile, and stepping on the middle of tiles. The cleaning solution does most of the work, followed by a gentle rinse.
Is roof cleaning for tile roofs safe for my plants and pets?
We pre-wet plants and lawns, keep cleaning solutions diluted to what the surface needs, and rinse landscaping again when we finish. Keep pets and children inside until surfaces are rinsed and dry.
How often should I schedule roof cleaning for tile roofs?
Every 3-5 years. Shade, nearby trees, humidity and heavy traffic mean more frequent cleaning; sunny, dry spots can go longer. Our free cleaning frequency tool gives a recommendation for your climate.
What if it rains on the day?
Light rain doesn't stop most washing, but heavy rain, high wind, lightning and freezing temperatures do. If the weather isn't right, we reschedule at no charge. Our work is backed by a satisfaction guarantee.