"How to Clean Cedar Siding"

Despite publicly announcing that I no longer offer training of exterior cleaning, I still get calls, texts, and emails from folks asking how to do this or that. And 99% of the questions are the same: "How do I clean cedar siding?"
I get it. People want their cedar-sided homes to look nice. The don't want to mess things up. And they definitely don't want to replace their cedar siding if it can be avoided (seen the prices lately, ever for the cheap ones?).
So why don't I just make a cute little tutorial explaining how to clean natural cedar siding? Heck, I could sell it online, on Vimeo or such, and make it a nice little profit center!
Well, a few good reasons:
1) I have five or 6 go-to methods for cleaning cedar siding. No, they can't all just be combined. In my experience and opinion, there is no single BEST way to clean cedar siding, and right method for one situation may be the exact WRONG method for another.
2) The best method to clean cedar siding will take into consideration the:
- why are we cleaning it? Propping to stain, or just making the cedar siding look better?
- type of cedar (Red, white, yellow)
- age of the siding
- Has the cedar siding previously been stained, sealed, or in any way "treated"?
- condition of the siding
- How are the cedar sidewall shingles fastened? (Galvanized nails, stainless nails, or staples of one or the other?)
- How accessible is the siding?
- What kind of roofing material does the house have?
- Are there adjacent decks? What is their condition, and kind of material are they made of?
- What's being removed from the cedar siding? Old stain? Grime from the busy street? Superficial mold and mildew? Deeply-embedded algae? Rust stains from the old galvanized nails?
- What's the condition of the windows? Are they in good shape, or are they old ones which don't shut properly, can't lock, etc?
- What's the landscaping like? A "Cape Cod lawn," or a quarter-million dollars in koi ponds, hydrangeas, and rose bushes climbing up the siding?
3) Equipment. I'm not driving around with $30k in pumps, tanks, and hoses on a 19,000-pound flatbed for just fun; washing a cedar house as well and as efficiently as possible takes some specialized gear far and above a pump sprayer and a Home Depot pressure washer.
4) Experience. This is THE BIG REASON don't offer "How To" instruction on cleaning cedar siding. And, this is the #1 Reason which homeowners and inexperienced cleaning pros mess up cleaning cedar siding... they just lack the experience to do it well. Having been doing this for more than a decade now, I'll state flatly that the learning curve on cleaning cedar siding is far longer than most homeowners (and cleaning contractors) appreciate. Faaaaaaar longer.
With all that in mind, doesn't it make more sense to KEEP a cedar house clean, rather than cleaning it once its been allowed to become dirty? Hmmmmm.....
More on that later.




