If you live in Tacoma, you already know what our winters do to a roof. Months of rain, low sun, and damp shade turn ordinary shingles into a perfect home for moss and algae. By fall, many Tacoma roofs are carrying thick green moss, dark streaks, and debris that holds moisture against the shingles long after the rain stops. That is not just a cosmetic problem. Left alone, moss lifts shingles, traps water, and shortens the life of a roof.
Grace Roof Cleaning cleans roofs across Tacoma the gentle way, with a brush and a treatment that gets to the roots, not with high-pressure water that can damage shingles. Here is what Tacoma homeowners should know before winter rain settles in, and why fall is the best time to book.
Why Tacoma roofs get moss and algae
Tacoma gets long, wet winters and plenty of cloudy days, and many neighborhoods are shaded by big Douglas firs and maples. That combination keeps roofs damp for days at a time. Moss loves it. Algae loves it too, and it shows up as dark streaks running down the roof, often mistaken for dirt or age. North-facing slopes, roofs under trees, and homes near the water tend to grow moss fastest, because they dry out last after every storm.
Once moss takes hold, it acts like a sponge. It holds rain against the shingles, adds weight, and slowly pries up shingle edges as it grows. In winter, trapped moisture can freeze and expand, doing even more damage. Gutters often tell the same story: when a roof is shedding moss and grit, the gutters below fill up faster.
Brush method vs. pressure washing shingles
Pressure washing might sound faster, but it is the wrong tool for most asphalt shingle roofs. A high-pressure stream can strip away protective granules, force water underneath shingles, and shorten the roof’s life. A roof that looks clean after pressure washing can be a roof that is quietly damaged.
Our brush method is different. We work across the roof by hand, gently brushing moss off the shingles instead of blasting it away. The brush lifts moss without tearing up granules or driving water under the shingles. We clear debris from valleys and roof edges as we go, so water can run off the way it is supposed to. It takes more care, but it protects the roof you are trying to save.
Moss treatment that works at the roots
Brushing removes the moss you can see, but treatment is what keeps it from coming straight back. After brushing, we apply a moss treatment that works down to the roots and helps prevent regrowth. That is the difference between a roof that looks better for a month and a roof that stays cleaner through the winter.
For a closer look at how treatment works, see our guide to moss treatment. The same approach applies in Tacoma: remove the growth first, treat the roots, and give the roof time to dry out and recover. Homeowners are often surprised how much better a roof looks a few weeks after treatment, as the remaining moss dries and releases.
What the fall bundle includes
Fall is the smartest time to take care of the whole roofline at once, before the heaviest rain arrives. Our fall bundle starts at $399 and includes all three services in one visit:
- Roof cleaning: gentle brush cleaning to remove moss, algae, and debris from your roof.
- Gutter cleaning: clearing leaves, needles, and debris from gutters and downspouts, so rain can drain away from your home. See our gutter cleaning in Tacoma page for what a cleaning includes.
- Moss treatment: a root-level treatment to slow regrowth through winter and into spring.
Booking the three together saves a second trip, and it means your roof and gutters are ready for winter at the same time. If your gutters are already overflowing or your roof is heavily covered, tell us when you call, so we can allow enough time for the visit.
When to book before winter rain
The best time to book is now, in fall, before the long stretch of winter rain. Once gutters are full and the roof is soaked through, every storm puts more strain on shingles, fascia, and foundations. A clean roof sheds water. Clean gutters carry it away. Together, they are your home’s first defense against leaks, overflow stains, and pooling water.
Book early in fall if you can. Schedules fill up as the rain returns, and homes with large trees or heavy moss need the most lead time. Moss often starts in shaded valleys and behind chimneys, where you cannot see it from the driveway, so it is worth a look before winter even if your roof does not look bad from the ground.
Serving Tacoma, Lakewood, Pierce & Kitsap County
We serve Tacoma, Lakewood, and homes across Pierce & Kitsap County. Every job starts with a free estimate, and we are happy to answer questions about your roof, your gutters, or the fall bundle before you book. Call or text Grace Roof Cleaning at 253-220-6777 for a free estimate, and get your roof ready for winter — starting at $399 for the roof, gutter, and moss fall bundle.
