Residential Window Washing Portland Oregon

The Portland difference

Why Portland Homes Need More Than a Squeegee

I’ve been cleaning windows across Portland for almost 15 years, and I’ll be straight with you: this city is harder on windows than most places. It’s not just the rain — though 154 rainy days a year and 42 inches of annual rainfall certainly doesn’t help. It’s the specific combination of what Portland throws at glass over twelve months.

Spring starts with pollen from Portland’s 14,000 cherry street trees and the Douglas firs in Forest Park — a sticky yellow film that coats south and west-facing windows through April and May. By summer the sun comes out and reveals six months of mineral deposits that have been quietly etching themselves into the glass surface while the clouds were covering them up. Then August arrives and eastern Oregon wildfire smoke pushes alkaline ash into the metro, which is chemically corrosive to glass if left more than 48–72 hours. By November the north-facing windows on Laurelhurst craftsmans and Irvington Victorians have started growing moss along the seals.

That’s what a Portland window year looks like. Generic window cleaning — someone with a bucket of soapy water and a squeegee — addresses maybe 20% of that. The rest requires knowing the city, knowing the housing stock, and using the right chemistry. That’s what 15 years here teaches you.

What We Actually Clean on Every Window

Most window washing services in Portland will clean the glass. Some will wipe the frames. Almost none clean the tracks properly, and very few wash and replace screens as part of a standard visit. That’s why homeowners call us after being disappointed elsewhere — the windows look okay for ten days and then the dirt comes back fast, or the tracks are still black with grit a week after the cleaner left.

Here’s what happens on every residential window we touch:

Storm Windows — the Job Most Portland Companies Skip

If your home was built before 1950 — and a huge portion of Portland’s housing stock was, especially in Laurelhurst, Irvington, Hawthorne, and Sellwood — there’s a good chance you have storm windows. Either the original wood-framed single-pane storms that were standard on craftsmans built between 1905 and 1940, or aluminum-frame storms added in the 1960s and 70s when energy efficiency became a concern.

Storm windows require a specific process: remove each panel carefully (the weight and balance matters on older wood frames), clean the storm glass, clean the primary window glass behind it, then reinstall the storm panel correctly so it seals properly for winter. It’s time-consuming, it requires knowing what you’re doing, and — frankly — it’s why most Portland window washers either don’t offer it or charge a steep premium.

We do storm windows regularly. If you’ve had quotes that excluded them, or cleaners who damaged the frame pulling them out, get in touch and we’ll come out and look at what you have before quoting. There’s too much variation in Portland’s older housing stock to quote storm windows blind.

Portland Neighbourhoods We Know Inside Out

After 15 years, there are very few streets in Portland I haven’t cleaned windows on. Here’s what that experience tells me about the specific challenges by neighbourhood:

• Laurelhurst (97214) — The oak canopy from Laurelhurst Park makes this the worst neighbourhood in Portland for spring pollen and autumn moss. North-facing windows start growing biological growth by October. Most homes have original storm windows. Free in-person estimate always recommended here.
• Irvington (97212) — Victorian era homes on large lots with shaded north exposures. Upper-story windows need proper ladder positioning — the foundations on these homes aren’t always level, which matters enormously for stabilizer-bar ladder safety.
• Hawthorne / SE Portland (97214) — A mix of active commercial storefronts along SE Hawthorne Blvd and residential craftsmans on the streets behind it. Spring pollen from the neighbourhood’s tree canopy is aggressive. Near Hawthorne Bridge, road spray gets on west-facing windows.
• Sellwood (97202) — Riverside humidity from the Willamette creates above-average moisture and biological growth on exterior frames. The antique strip on SE 13th needs monthly commercial attention. Residential craftsmans here often have original wood frames in good condition — we treat them carefully.
• Pearl District (97209) — Modern lofts with floor-to-ceiling glass. High-rise condos along the South Park Blocks side. Commercial galleries and First Thursday storefronts on the ground level. Very different window type from anywhere else in Portland — all our equipment travels with us.
• Nob Hill / NW Portland (97210) — Pre-war apartments and Victorian row houses. NW 23rd boutiques with high foot traffic. Very tight street parking which we plan around — we know the NW Portland parking permit zones and come prepared.
• Beaverton / Hillsboro (97005–97124) — Suburban residential at scale. Newer construction, ranch homes, larger window counts per home. Intel and Nike campuses bring a professional demographic that expects quality. We’re on this route regularly.
• Lake Oswego (97034) — Larger homes, lakefront properties, premium residential. Higher window counts and often more complex access. This is where we see the most hard water staining from irrigation systems hitting glass repeatedly over years.

Hard Water Stains — Portland’s Most Misunderstood Window Problem

A question I get at almost every estimate in Beaverton, Lake Oswego, and the SW Portland hills: “Why do my windows have white spots that won’t come off no matter how many times I clean them?”

Those are hard water stains — calcium and mineral deposits from irrigation sprinkler systems that have been overshooting and hitting the glass, or from mineral-laden rainwater drying on the surface and concentrating. Over months, these deposits bond chemically with the silica in the glass. They’re not sitting on top anymore. They’re part of the surface.

Standard cleaning won’t touch them. We use a targeted mineral treatment for established staining, followed by our deionised water rinse to prevent new deposits. For windows where the etching is already deep, we’ll be honest with you about what’s reversible and what isn’t — better to know upfront than be disappointed after a cleaning.

Residential Pricing — What Portland Homes Actually Cost

Portland residents on r/askportland are right that quotes in this market vary wildly — from surprisingly cheap to unexpectedly expensive, with no obvious reason for the difference. Here’s exactly how we price residential window washing, so you know what you’re comparing:

Free in-person estimates for homes we haven’t seen. Portland homes vary too much — a 2018 ranch in Beaverton and a 1912 Victorian in Irvington take completely different access plans and time. We’d rather see it once and quote accurately than give you a number that changes at the door.

Residential Window Washing — Common Questions

How often should I have my Portland home’s windows professionally cleaned?

Twice a year is the minimum for most Portland homes — once in spring (April–May) after the rainy season clears and pollen peaks, and once in October–November before the wet season sets in and moss growth accelerates. Homes near Forest Park, Mount Tabor, or with significant tree canopy overhead benefit from three visits annually, adding a late-summer clean to address pollen accumulation and any wildfire ash from eastern Oregon fire events.

Will you work in Portland’s rain, or do I have to wait for a dry day?

With our deionised water system, typical Portland drizzle has no negative effect on the result. Mineral-free water leaves nothing behind when it dries — whether in sun or in a light mist. If we had to wait for a completely dry day in Portland, we’d barely work from October through April. We continue working through drizzle and reschedule only for heavy rain, high winds, or freezing temperatures that create safety issues for our crew working on ladders.

Why do my windows get dirty again so quickly after cleaning?

If your windows look dirty again within two or three weeks, there are two likely causes. First: the cleaner used a soap-based solution that left a microscopic residue on the glass. That residue acts as a sticking agent — the next round of dust, pollen, and Portland atmospheric particulate bonds to it rather than sitting loosely on clean glass. Second: the tracks and screens weren’t properly cleaned, so they’re re-depositing grit every time it rains. Our deionised water leaves no residue. Your windows stay visibly clean for 4–6 weeks, not two.

Do you clean the inside of windows too, or just the exterior?

Both sides, always. Interior and exterior glass on every window in the home is included in our standard residential visit. We carry shoe covers for interior work and are mindful of furniture, curtains, and anything near the windows. If there are specific rooms or windows you’d like us to skip — nurseries where a napping baby can’t be disturbed, home offices during a call — just tell us and we’ll plan the visit accordingly.

Are you licensed and insured to work on older Portland homes?

Yes. Oregon Business License, bonded, and $2M general liability insurance. We carry a Certificate of Insurance and will send it same-day before any job begins — particularly useful if you have a historic home or an HOA that requires it. Our ladders are industrial-grade with stabilizer bars and leg levelers, which matters on the uneven ground and old brick pathways common in Portland’s pre-war residential neighbourhoods. OSHA-compliant rigging on all multi-story work.

Can you clean windows on a home with challenging access — steep slope, tight fence line, deck in the way?

Usually yes — and we prefer to see it first. Portland lots are notoriously varied. Some of the craftsman homes in the West Hills have grade changes of 15 feet between front and back. Some homes in Sellwood have fences or decks that make rear window access genuinely complicated. This is why we do free in-person estimates for homes we haven’t seen. We’ll walk the property, plan the access, and only quote what we can actually do safely. If there’s a window we can’t reach safely, we’ll tell you — not show up on the day and figure it out.