Soft-wash · Boston Area

Your home exterior, restored. Soft-wash safe on every surface.

Soft-wash technology — 100× gentler than pressure washing. Safe for vinyl siding, painted wood, stucco, and roofs. Mark your surfaces, get instant price.

Licensed MA · Roof-safe formula · 10 towns
Licensed MAHIC #194321
Roof-safe chemistryARMA-compliant
Eco biodegradableSC-1000 / plant-safe
5-yr clean guaranteeor we re-treat
02 · How it works

Three steps. Sixty seconds.

Our quote tool understands your home the way a roofer does — by surface, not square footage alone. Mark what you want washed, see the price per surface, book the slot.

Step 01

Trace house perimeter & mark surfaces.

Drop pins around your property on a satellite view. The tool snaps to corners and calculates each surface — no measuring tape, no guessing.

Step 02
Siding ✓ Roof ✓ Deck Fence

Select the surfaces you want washed.

Toggle siding, roof, deck, fence — or all four. Each surface is priced independently, so you only pay for what you actually want cleaned.

Step 03
SIDING 720 sqft $180 ROOF 1,840 sqft $644 TOTAL $824

Instant price per surface type.

No "we'll get back to you." See your itemized estimate immediately and book a slot the same day. Lock-in for 30 days, no deposit.

03 · Why soft-wash

Pressure washing damages siding. Soft-wash doesn't.

Most exterior cleaners blast surfaces with 3,000+ PSI — enough to strip paint, drive water behind vinyl, and void roof warranties. Soft-wash replaces force with chemistry: a biodegradable solution dwell-time, then a low-pressure rinse.

Pressure washing · the old way

Faster. Louder. Costlier later.

  • 3,000+ PSI — strips paint, gouges wood, drives water behind siding.
  • Removes surface algae only. Roots survive — black streaks return in 6–12 months.
  • Most asphalt-shingle warranties are voided by pressure. ARMA recommends low-pressure only.
  • Cleans look great day one, fade fast. You're paying again next year.
Soft-wash · the WashIQ way

Gentler. Deeper. Lasts longer.

  • <500 PSI — about 100× gentler. Safe for vinyl, painted wood, stucco, asphalt shingle, brick.
  • Bio-safe detergent kills algae and lichen at the root, not just the surface.
  • Roof-warranty compliant. ARMA-recommended method for asphalt shingles.
  • Results last 3–5 years. One wash, not annual maintenance.
04 · Surface pricing

Per square foot. Per surface type.

Most exteriors need only one or two surfaces washed — not the whole envelope. Pay for what you actually want cleaned. Volume discounts kick in over 1,500 sqft on a single surface.

VINYL · ALUMINUM · STUCCO

Vinyl siding

Bio-detergent dwell + soft rinse. Removes mildew, pollen, algae, dirt streaks.

$0.25 / sqft
ASPHALT · CEDAR · METAL

Roof soft-wash

ARMA-method soft-wash. Kills gloeocapsa magma (black streaks) at the root.

$0.35 / sqft
CEDAR · PT · COMPOSITE

Wood deck

Wood-safe brightener + soft rinse. Optional sealant pass after dry-down.

$0.20 / sqft
CEDAR · VINYL · CHAIN-LINK

Privacy fence

Per linear foot, both sides. Algae & mildew removed without splintering.

$0.18 / sqft
05 · What's included

The whole job. Not a la carte.

One price covers prep, treatment, rinse, and walkthrough. No upcharges for "stubborn algae," no surprise dwell-time fees, no charge to come back if a streak stays.

  • 01 Pre-wet protectionPlants, shrubs, and exterior fixtures wetted & tarped before any solution lands.
  • 02 Bio-safe detergentSC-1000 + plant-safe surfactant. EPA-registered, biodegradable inside 72 hours.
  • 03 Soft rinse<500 PSI rinse from a calibrated pump. No ladder gouging, no water intrusion.
  • 04 Algae & mold root-killSodium hypochlorite at the right dilution kills the spore, not just the stain.
  • 05 Post-wash walkthroughWe walk the property with you. Anything you flag, we re-treat — same visit.
06 · Service area

Ten towns. Greater Boston.

Same-day quotes inside Route 128. Same-week service. Outside the towns below — drop your zip in the quote tool, we'll route you to a partner.

Boston Cambridge Brookline Newton Somerville Watertown Belmont Arlington Medford Quincy
Same-day quote
Inside Route 128
Avg. lead time
5 days
07 · FAQ

The questions everyone asks.

Answered straight, from the people who have to climb the ladder. If your question isn't here, text us — we read & reply within an hour during business days.

Is soft-wash safe for windows?
Yes. The pressure is far below window-rated PSI — same range as a garden hose nozzle. We rinse glass after every solution pass so there's no residue, and we wipe down the screens. If a streak shows up after dry, we come back.
How long does the clean actually last?
3–5 years on roof, 2–4 years on siding, 1–3 years on deck (faster wear because of foot traffic and weather). The lifespan comes from killing algae & lichen at the root — not just blasting the visible layer off. Most pressure-washed roofs go cloudy again inside a single summer.
Will it damage paint or stain?
No, when it's done right. Soft-wash uses chemistry, not force, so the rinse pressure (under 500 PSI) is below what's needed to lift cured paint. We test in an inconspicuous corner first on any aged or peeling surface and walk away if there's already adhesion failure — that's a paint job, not a cleaning job.
Does this void my roof warranty?
No. Pressure washing voids most asphalt-shingle warranties. Soft-wash is the method explicitly recommended by ARMA (the asphalt-roofing trade body) for cleaning algae-streaked roofs. We document the wash and provide a receipt that meets manufacturer warranty requirements.
What's actually in the detergent?
A diluted sodium hypochlorite + a plant-safe surfactant (SC-1000, EPA-registered). It's biodegradable inside about 72 hours. We pre-wet and post-rinse all landscaping; we won't wash on a day with high wind near sensitive plantings. Pet- & kid-safe once dry — same chemistry as a swimming-pool shock at lower concentration.
Can you do same-day if I book this morning?
Same-day is rare in peak season (May–Sept) but we hold two rapid-response slots a day for siding-only and deck-only jobs inside Route 128. Roof jobs need a day-ahead lead time so we can pull the right ladder gear and check the forecast — soft-wash needs at least 4 hours of dry weather post-rinse.
Ready when you are

Clean siding. Clean roof. Clean conscience.

Mark your surfaces. See the price. Book the slot. Pay nothing until the walkthrough — and if anything stays dirty, we re-treat, on us.