Wet seasons, shade and tree cover make Fraser Valley homes look dull fast. Here’s what to clean, when to clean it, and what to watch for.
In the Fraser Valley, most homes need gutters cleaned in spring and fall, a soft-wash house wash every 12–24 months (yearly on shaded lots), roof cleaning or moss treatment every 1–3 years depending on shade, and windows once or twice a year. Wet seasons, shade and tree cover are what speed that schedule up.
If you live in the Fraser Valley, you already know the pattern: wet seasons, shade and tree cover make a home look dull faster than expected. Roof moss shows up along the edges, siding turns green on the shaded side, gutters overflow in heavy rain, and windows never look finished when the screens are dirty.
This checklist is for homeowners in Chilliwack, Abbotsford, Mission, Agassiz, Harrison Hot Springs and Hope — what to clean, when to clean it, and what to watch for along the way.
Why exterior buildup happens so fast here
The Fraser Valley’s moisture and mild temperatures create ideal conditions for organic growth. When surfaces stay damp — especially under trees or on north-facing walls and roof slopes — moss, algae and lichen develop faster.
The result isn’t just cosmetic. Heavy buildup traps moisture, fills gutters faster, and leaves staining on siding and exterior finishes that gets harder to remove the longer it sits.
Roof: moss, algae, lichen and black streaks
What to look for
- Green moss along roof edges and valleys
- Rough, crusty patches — often lichen
- Dark streaking that makes the roof look older than it is
- Debris collecting in valleys and near the gutters
When to clean
Many homeowners book roof cleaning in spring after the winter wet season, or in late summer to early fall before the heavy rain returns. Roofs with heavy tree cover or shaded slopes usually need attention more often. If moss is the main issue, roof moss removal is the more targeted service.
Avoid aggressive blasting on shingles — roofs need roof-safe, low-pressure methods, not maximum pressure. If you’re already seeing warning signs, read 7 signs you need roof cleaning in Chilliwack.
Siding: the green side of the house
- Green algae staining on shaded siding
- Grime lines under soffits and around downspouts
- Cobweb buildup around corners and entry areas
- Dull, tired-looking siding, even when it isn’t heavily dirty
A soft-wash house wash every 12–24 months keeps most homes looking sharp; shaded, heavily treed lots often need one every year. Soft washing cleans siding thoroughly without relying on high pressure that can force water behind exterior materials. If algae is the main problem, see how to remove green algae from a house exterior.
Gutters and eavestroughs: prevent overflow before it starts
- Water spilling over the edge during rain
- Water pouring over the corners
- Streaking on the fascia and siding below
- Plants growing out of the gutter
For most Fraser Valley homes, spring and fall are the right times for gutter cleaning, with an extra clean-out before storm season if you’re under a lot of trees. If your roof has moss, pair roof cleaning with gutter cleaning — roof debris usually ends up in the gutters. Our seasonal gutter cleaning guide covers the timing in more detail.
Windows and screens: the finished look
- Rain spotting and film on exterior glass
- Dirty screens that block light and airflow
- Windows that still look dull after you wipe the glass
Most homes look their best with exterior window washing once or twice a year; homes with heavy tree cover or a lot of exposure sometimes choose more often. Don’t skip the screens — clean glass looks unfinished behind dirty screens. See why screen cleaning makes such a difference.
The most popular combinations
- Biggest visual change: soft-wash house wash + window and screen cleaning
- Best maintenance combination: roof cleaning + house washing
Our Silver, Gold and Platinum packages bundle these into a single visit. If you’re comparing methods, pressure washing vs soft washing explains why some surfaces need soft washing instead of force.
Quick seasonal checklist
| Season | What to book or check |
|---|---|
| Spring (Mar–May) | Gutter clean-out and flow check · house wash if algae is present · windows and screens |
| Summer (Jun–Aug) | Windows and screens · house washing |
| Fall (Sep–Nov) | Gutter clean-out before heavy rain · roof cleaning or moss removal if moss is building up |
| Winter (Dec–Feb) | Watch for overflow and drainage problems · schedule work around safe weather windows |
FAQs
How often should I clean my gutters in the Fraser Valley?
Most homes need it in spring and fall, and more often under heavy trees or below a mossy roof.
Is soft washing safe for siding?
Yes. Soft washing uses low pressure with a cleaning solution, which is the appropriate method for siding, soffits and other exterior finishes.
Do you clean window screens?
Yes — screens are cleaned with a dedicated screen cleaner. Screens that need to come off for us to reach the glass are removed by the homeowner before the appointment; we don’t remove or reinstall screens.
Do you pressure wash roofs?
No. Roofs are cleaned with roof-safe, low-pressure soft washing, never aggressive blasting.