The short version. Gutters come clear between late October and January, once the needle drop is under way. Moss comes off on any dry day from October through May, and spring is when the results show fastest. Both are seasons rather than dates — there is more room in the year than most advice suggests.
Call (253) 366-8066 and we’ll connect you with a licensed local specialist who works Tacoma.
What Tacoma is working with
the median year a Tacoma detached home was built. 60% of them predate 1960.
Pierce County Assessor, Aug 2026of Tacoma’s 56,762 detached homes have a roof moss grows on.
Pierce County Assessor, Aug 2026days of rain a year. Not a lot of water — but far more wet days than Atlanta, at temperatures where nothing dries.
NOAA normals 1991–2020Tacoma’s tree canopy today, and the city’s target for 2030. The shade is being added to.
City of Tacoma Urban ForestryAn old house under a canopy that is being deliberately grown is a house that will keep needing this work. That is not a warning — it is just the shape of the job here, and it is why the two visits below are best thought of as a cycle rather than a fix.
The Tacoma year
The two jobs
Gutter cleaning in Tacoma
When to book it, what a thorough visit includes, the 25,600 gallons a year a typical Tacoma roof sheds, and the city rule about where the debris goes.
Read the page →Roof moss removal in Tacoma
Which stage your roof is at, what a treatment actually involves, how much product a Tacoma roof takes, and the one license number to ask any contractor for.
Read the page →The background, if you want it
These are county-wide and go deeper than the two pages above. None of them are required reading before you call.
- Does moss actually damage your roof? Moss, algae and lichen are three different things and only one of them matters. Includes a five-stage scale so you can place your own roof.
- When should you treat roof moss? A dry day between October and May, and why spring is when the results show fastest.
- Does your contractor need a license? Washington law treats your roof as “land,” which puts moss treatment under the Pesticide Application Act. Most people are surprised.
- Do gutter guards actually work? Yes — when the type matches your trees. The evidence for guards in conifer country, and how the right one gets chosen.
Where we work in Tacoma
Not sure which one you need?
Tell us your neighborhood and roughly what is above the roof. We will tell you what to do and when to book it, then connect you with a licensed local specialist who works Tacoma. No cost to you, no obligation, and no call center.
Call (253) 366-8066Get a Free Quote Cascade Roof & Gutter is not a contractor and does not perform work. We connect Pierce County homeowners with independent licensed specialists.Nearby
Cascade covers all of Pierce County. The nearest other guides:
Sources
- Pierce County Assessor-Treasurer, improvement_builtas and tax_account extracts, August 2026, joined on parcel number.
- NOAA NCEI, U.S. Climate Normals 1991–2020, Tacoma No. 1 — 39.22 in annual, 149.4 wet days.
- Reukema, D.L. (1964), USDA Forest Service Research Note PNW-14 — Douglas fir litterfall by month.
- City of Tacoma Environmental Services, Street Sweeping — leaf-season sweeping from the third week of October.
- City of Tacoma, Urban Forestry Program — canopy cover approximately 20%, goal 30% by 2030.