Willow Wash specializes in professional ADU cleaning across the Bay Area — from post-construction cleanup after the build to ongoing exterior maintenance once your tenants move in. Get your unit rent-ready fast and protect your rental income long-term.
A freshly built ADU looks finished — but construction leaves behind hazards and residues that standard cleaning misses entirely. Fine silica dust from drywall and concrete work penetrates surfaces and HVAC systems. Adhesive residue from installation tape clings to windows and frames. Construction debris hides in gutters, on rooflines, and across exterior hardscapes.
At the same time, once tenants move in, your ADU becomes a rental property — and its exterior condition directly impacts tenant satisfaction, property value, and your ability to re-rent quickly between tenancies. That requires a different kind of ongoing care than a typical home.
Willow Wash is built to handle both phases of the ADU lifecycle — from the moment the GC hands over the keys through every tenant turnover after that.
Drywall sanding and concrete work leave fine particulate on every exterior surface. Standard pressure washing without the right technique drives it deeper rather than removing it.
Construction windows are commonly covered with protective film and splattered with overspray. This requires specific cleaning chemistry and technique — not just soap and water.
New construction fills gutters with sawdust, roofing debris, and concrete splash. Left uncleaned, this causes drainage failure and fascia damage before the first rainy season.
Concrete trucks, construction equipment, and heavy foot traffic leave oil stains, tire marks, and embedded grime on new driveways and walkways that need immediate treatment.
One vendor for the entire ADU journey. Post-construction cleanup to get you rent-ready, and ongoing exterior maintenance to protect your investment once tenants are in.
After the build is done, before your first tenant walks through. Get the unit rent-ready fast without cutting corners.
Once tenants are in, protect your investment and maintain curb appeal between tenancies and year-round.
Bay Area homeowners are generating serious passive income from ADUs — and the numbers are only growing. In San Jose alone, ADU permits jumped from 10 in 2015 to 488 in 2024. The demand is real, rents are strong, and vacancy rates for well-maintained units hover near zero.
But here's what most landlords don't factor in: a dirty exterior slows down tenant placement, gives prospective renters a reason to walk away, and gives current tenants a reason to complain. Every week your unit sits vacant between tenants costs you real money.
A professional exterior clean before every new tenant costs a fraction of one week's lost rent. Willow Wash makes it easy — fast turnaround, flexible scheduling, and a vendor who understands the timeline pressure of tenant transitions.
Every service we provide for ADU clients — matched to the right method, equipment, and timing for your property.
A lot of ADU owners rush to get the unit occupied and skip a proper exterior clean. It's an understandable shortcut — but it's a costly one. Here's what you're actually risking when you skip the post-construction clean or let exterior maintenance slide between tenancies.
At $2,500/month in San Jose, one extra week of vacancy costs you over $600. A professional post-construction exterior clean and window service is a fraction of that — and it's what gets your unit rented faster.
Don't let a skipped clean cost you a month of income or a future repair bill. Call Willow Wash before your first showing.
Get Your Free EstimateThanks to California laws including SB 9, AB 2221, and AB 68, building an ADU is faster and easier than ever before. Over 26,900 ADUs were permitted statewide in 2023 — with the Bay Area leading the charge. San Jose was even the first city in California to allow homeowners to sell their ADUs as separate condominiums. If you're building or have recently completed an ADU in San Jose, Santa Clara, Sunnyvale, Fremont, or anywhere across the Bay Area, Willow Wash is ready to make it rent-ready.
As soon as your general contractor wraps up and before your first tenant showing or move-in. Ideally, schedule us within 1–2 weeks of construction completion. The longer construction residue sits on surfaces — especially silica dust on windows and oil on driveways — the harder it becomes to remove. We offer same-week availability for most Bay Area ADU jobs and can work around your inspection and showing timeline.
Post-construction cleaning addresses residues and hazards that standard pressure washing misses — including construction silica dust, adhesive residue from protective film, paint overspray on glass, concrete splash on hardscapes, and sawdust packed into gutters and downspouts. It also requires specific chemistry and technique to remove these materials without damaging new finishes, fresh paint, or new roofing. We approach every ADU post-construction clean as a specialized job, not a standard wash.
Yes. We offer recurring maintenance contracts for ADU landlords and property managers covering exterior washing, window cleaning, gutter cleaning, and tenant turnover resets on a quarterly or bi-annual basis. Recurring clients receive priority scheduling — which matters when you have a tenant moving out and a new one moving in within days. Most ADU owners bundle 2–3 services per visit for cost efficiency.
No — and this is exactly why surface assessment matters before every job. New ADU construction often includes fresh paint, new stucco, new roofing, and brand-new windows that require low-pressure soft washing techniques, not high-pressure blasting. We evaluate every surface and choose the appropriate pressure, chemistry, and method before we start. High-pressure washing is reserved for concrete and pavers only. Everything else gets the right method for the material.
For standard ADU exterior resets between tenants, we typically complete the job within 2–4 hours depending on unit size and service scope. We offer same-week scheduling and can often accommodate 24–48 hour turnarounds for existing clients. Call us directly for urgent turnaround requests — we understand that every day of vacancy is money out of your pocket.
Yes — the approach varies based on ADU type. Garage conversions often have oil stains and embedded grease from the previous use that require targeted degreaser treatment before pressure washing. Detached ADUs typically have more exterior surface area and full rooflines to address. Junior ADUs (JADUs) attached to the main residence require careful containment to avoid affecting the primary home's finishes. We assess each unit individually and price accordingly.
We serve 36+ cities across the South Bay, East Bay, Peninsula, and Tri-Valley — including San Jose, Santa Clara, Sunnyvale, Mountain View, Cupertino, Milpitas, Fremont, Hayward, Pleasanton, Dublin, Palo Alto, Redwood City, San Mateo, Saratoga, Los Gatos, Campbell, Morgan Hill, and more. If your ADU is in the Bay Area, we can service it. Call us to confirm availability in your specific city.
Free in-person estimates for all ADU cleaning and post-construction jobs. Most Bay Area properties quoted within 24 hours. Licensed, insured, and built for results.
(669) 254-7406