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House Washing & Soft Washing

Vinyl siding tolerates roughly 1,300 to 2,000 PSI, and even that is unsafe if the stream is aimed upward, because water gets driven behind the panels. River City Pressure Washing avoids the problem entirely by soft washing homes right across Post Falls, ID at only 100 to 500 PSI, letting a biodegradable solution kill algae, mildew, and lichen at the root on siding, soffits, fascia, stucco, and trim rather than blasting the film off the top of it.

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Front porch of a gray house with red door, stone columns, garage, and small landscaped garden.

GRIME DOES NOT WASH OFF. IT HAS TO BE KILLED.

A rinse moves dirt around. The dark speckling on your siding is living growth with roots in the surface, and pressure alone knocks the visible part off while leaving the colony behind in the wall, which is why a pressure-washed house greens up again within a single season. Soft washing works the other way.


The solution dwells, breaks the growth down biologically, and a low-pressure rinse carries it away. What you get is a longer clean, not a faster one, and siding that keeps its finish.

  • Low pressure, no forced water behind panels
  • Biodegradable solution that kills at the root
  • Landscaping pre-wet and rinsed after
  • Soffits, fascia, and eaves included
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HOUSE WASHING & SOFT WASHING

YOUR SIDING IS HOLDING WATER YOU CANNOT SEE.

Algae forms wherever moisture lingers, and a north-facing wall under a mature conifer never fully dries between rains. That growth sits against the panel, wicks into seams, and keeps the substrate damp through a Post Falls winter that delivers close to 26 inches of precipitation. The staining is the symptom people notice. The moisture trapped underneath costs money later, which is why we treat a house wash as maintenance.

SHADED LOTS AND LAKE AIR MAKE THIS A REGULAR JOB HERE.

Properties near Lake Coeur d'Alene, the Spokane River, and the wooded lots around Hayden and Rathdrum hold humidity longer than an open subdivision does. Add a pollen season now running a month longer than it did in 1970, and road grit from a long winter, and surfaces collect more than they used to. Most homes here want a wash every year or two, with shaded elevations needing it sooner.

SINCE 2017, WE HAVE WASHED THIS VALLEY'S SIDING.

9 seasons in the same climate teaches you which walls go first. The north elevation loads up before the south, wood-grain lap siding traps film a smooth panel sheds, and a new build near active construction carries dust a garden hose will never lift. That shows up as fewer surprises on your estimate and a wash that holds through next spring. 8+ years of soft washing North Idaho siding, and the north elevation still loads up before the south on almost every house we quote. Wondering what your worst wall actually needs?

WHY CHOOSE US FOR HOUSE WASHING & SOFT WASHING.

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FINISH STAYS INTACT

No stripped paint, no cracked vinyl, no water pushed behind a panel. Low pressure protects the surface you paid for while the solution does the cleaning work.

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RESULTS THAT HOLD

Killing growth at the root buys you seasons, not weeks. A soft-washed elevation typically stays clean well past the point a pressure-only wash starts greening again.

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CURB APPEAL BACK

Lap lines, vent streaking, and eave cobwebs disappear together. The house reads as maintained again, which matters most before a listing, an appraisal, or a family visit.

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SAFE AROUND THE YARD

Landscaping is pre-wet, covered where needed, and rinsed again afterward. Products are biodegradable and properly diluted, so beds, lawn, pets, and children are never treated as an afterthought.

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ONE VISIT, WHOLE EXTERIOR

Soffits, fascia, trim, stone veneer, and light fixtures all get cleaned alongside the walls. Nothing is left half-done in a way that makes the finished sections look worse.

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HONEST EXPECTATIONS

Some staining is permanent, and we say so before starting rather than after. You get a realiztic picture of the outcome and a written price that does not move.

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WHAT WE WASH

OUR HOUSE WASHING WORK

Every elevation gets assessed before anything is mixed, because a stucco wall, a vinyl lap, and a stained cedar soffit each need a different dilution and dwell time. Here is what a full exterior wash covers.

House siding corner with two utility boxes and a basement vent near the foundation

VINYL SIDING

Vinyl and Lap Siding


Speckled biological growth and the dark streaking that collects between courses lift cleanly at low pressure. Textured wood-grain panels get extra dwell time, since the grain traps film that a smooth surface would shed on its own.

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STUCCO

Stucco and Stone Veneer


Porous finishes hold growth deep in the texture, so the solution matters far more than the pressure. Dilution is adjusted for the substrate, and rinsing is worked from the bottom up to avoid streaking as it dries.

Worker installing soffit panels under a house roof overhang, with exposed rafters and blue siding.

OVERHEAD

Soffits, Fascia, and Eaves


Cobwebs, spider nests, wasp starts, and the grimy film along the roofline come down with the rest of the exterior. Corners around recessed lighting get worked by hand where spray alone will not reach.

Front entrance of a red brick house with white columns, black door, and white-framed windows

ENTRY

Porches, Columns, and Entryways


The first eight feet of a house is what visitors actually look at. Columns, ceilings, railings, and door surrounds get cleaned to the same standard as the walls, including the underside of a covered porch.

Floor cleaning machine on a wet stone patio beside a wall and bench

NEW BUILD

Post-Construction Washes


Cutting dust, drywall film, caulk smears, and adhesive residue coat a finished build inside every groove. A rinse spreads it. Proper solution and low pressure lift it before the first photographs are taken.

Portable wheelchair lift on a driveway in front of a large house and garage.

FULL PROPERTY

Whole-Exterior Packages


Pairing the wash with gutters, windows, or concrete means one setup and one drying window. It also keeps the property looking consistent, rather than one bright wall next to three that were skipped.

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THE WORD ON OUR WORK

WHAT OUR CLIENTS SAY.

The reviews that mean the most are written a year later, when the siding still looks the way it did the day we left. People tell us the difference showed up in listing photos, in a neighbor asking who did it, and in nothing needing a second wash.

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Common Questions

FREQUENTLY ASKED QUESTIONS.

These come up on nearly every house wash estimate we write. If your siding has a situation not covered below, ask us on site and we will tell you plainly what will happen.

  • What is soft washing, and how is it different from pressure washing?

    Soft washing applies a cleaning solution at low pressure and lets chemistry break down organic growth. Pressure washing relies on force. On siding, soffits, and stucco, chemistry is safer and the clean lasts considerably longer.

  • Is soft washing safe for my home's exterior?

    Yes. Running at roughly 100 to 500 PSI, it does not crack vinyl, strip paint, or force water behind panels the way a high-pressure fan tip can. That is precisely why it is the standard method for siding.

  • Can you soft wash with just a regular pressure washer?

    Not properly. Soft washing needs a downstream injector or a dedicated pump to apply solution at low pressure and correct dilution. A pressure washer alone delivers force without chemistry, which is the opposite of what siding wants.

  • How often should I have my house soft washed?

    River City Pressure Washing puts most Post Falls, ID homes on a wash every one to two years. Shaded lots, wooded properties, and north-facing walls collect growth faster and often want yearly attention, while an exposed sunny elevation stretches longer.

  • Does soft washing kill mold and mildew, or just hide it?

    It kills it. The solution breaks growth down at the root instead of knocking the surface layer off, which is why a soft-washed wall stays clean while a pressure-only wash discolors again within a season.

  • Can you soft wash a roof as well as the walls?

    Asphalt shingles must never be pressure washed, since it strips granules and shortens roof life. A low-pressure treated rinse is the accepted approach, and we assess pitch, condition, and access before agreeing to it.

  • Why does my siding still look spotted after a previous wash?

    Because the growth was removed mechanically rather than killed. High pressure clears the visible film and leaves the colony in the surface. River City Pressure Washing treats spotted siding across Post Falls, ID with solution and dwell time instead.

  • How long does a house wash take?

    Most single-family homes finish in two to four hours, depending on square footage, story count, and how much growth has built up. Adding gutters or concrete extends it by an hour or two.

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HOW WE WORK

FROM FIRST WALK TO FINAL RINSE, HERE IS HOW.

STEP 01

Walk the Elevations

We circle the house with you, note substrate on every wall, flag chalking paint, loose trim, open vents, and damaged panels, and identify which elevations carry the heaviest growth. That walk sets pressure, dilution, and sequence for the whole job.

STEP 02

Quote It in Writing

You get a written price covering surfaces, access needs, and anything we expect will not fully come out. Nothing is added later. If the walk reveals a repair we cannot clean around, we tell you before booking.

STEP 03

Protect the Property

Landscaping is soaked, beds under active wash zones are covered, outdoor furniture is moved clear, and light fixtures and outlets are checked. Windows on the working elevation get closed, and drains are noted before the pump starts.

STEP 04

Apply and Dwell

The solution goes on from the bottom up at low pressure and is given time to work. Dwell is monitored rather than guessed, and reapplied to heavy areas so growth breaks down completely instead of partially.

STEP 05

Rinse Clean

A controlled low-pressure rinse carries everything off, worked top down so nothing streaks as it dries. Soffit corners, trim returns, and fixture housings are handled by hand where the spray pattern cannot reach.

STEP 06

Walk It Again Together

We rinse landscaping a second time, then walk every elevation with you in daylight. Anything short of the standard gets another pass on the spot, before equipment goes back on the trailer. You sign off, not us.

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Get Your Free Estimate

SEE WHAT YOUR SIDING ACTUALLY LOOKS LIKE, FREE.

Most homeowners have no idea how far the color has drifted until the first wall comes clean beside a dirty one. Send us your address through the contact form and we will price the whole exterior at no charge.

WHAT YOUR HOUSE WASH COVERS:
  • Written estimate before any work begins
  • Low-pressure soft wash on every wall
  • Soffits, fascia, trim, and eaves included
  • Landscaping pre-wet, covered, and rinsed
  • Walkthrough on every elevation
  • Our 100% satisfaction guarantee