Window Cleaning

How Often Should You Clean Your Windows in Los Angeles?

LA's microclimates make a one-size answer impossible. Here's a neighborhood-by-neighborhood guide to the right window cleaning cadence.

April 15, 2026 7 min read

If you live in Los Angeles, you've probably noticed something frustrating: windows you cleaned a few weeks ago already look hazy in the afternoon sun. You're not imagining it. Between basin dust, ocean salt, freeway exhaust, and the pollen that drifts in from the canyons, LA is one of the toughest environments in the country for keeping glass clear.

The honest answer to "how often should I clean my windows" is: it depends on where you live and what your house faces. Below is the cadence we actually recommend to clients across Los Angeles, based on the specific microclimate around their home.

The default: every 4–6 months for most LA homes

For a typical single-family home in a residential neighborhood — think Sherman Oaks, Encino, Studio City, or Pasadena — twice a year is the sweet spot. One cleaning in spring after the rainy season clears, and one in fall before the holidays. This rhythm catches the worst of the pollen bloom and removes the dust that bakes onto glass during the dry summer months.

Homes with kids, pets, or that entertain often usually benefit from a third visit in midsummer. If you find yourself constantly noticing smudges or hand prints on your sliders, that's a sign you've waited too long.

Coastal homes: every 2–3 months

If you're in Malibu, Pacific Palisades, Santa Monica, Venice, or Marina del Rey, the math changes completely. Salt-laden marine fog rolls in nearly every morning and deposits a microscopic layer of mineral residue on every exposed surface. Within weeks it bonds to the glass and starts to etch. Quarterly cleaning is the minimum to prevent permanent damage.

Oceanfront homes — where you can hear the surf from the deck — often need monthly attention on the windward side. The good news is the leeward side typically only needs the standard twice-a-year treatment.

Hillside and canyon homes: every 3–4 months

Bel Air, Hollywood Hills, Brentwood canyon properties, and any home tucked into the Santa Monica Mountains face a different challenge: tree pollen, eucalyptus oil, and a constant rain of fine particulate from dirt roads and landscaping. The pollen in particular is sticky and hard to remove if it's allowed to bake on through summer.

Beverly Hills, Hancock Park, and other prestige neighborhoods

Most luxury estates we service are on a quarterly maintenance plan, with extra interior cleanings before events. Beyond aesthetics, regular cleaning protects expensive custom glass, steel-framed windows, and historic wood sash from long-term mineral damage.

Signs it's time, regardless of the calendar

Visible water spots that don't wipe off with a microfiber cloth

A hazy film when sunlight hits the glass at an angle

Bird droppings, especially on skylights and second-story windows

Pollen accumulation in the corners of frames and tracks

Streaks that appear after rain — a sign minerals are bonding to the glass

What waiting too long actually costs you

Beyond the obvious aesthetic hit, dirty glass in Los Angeles has real long-term consequences. Hard water and salt deposits will permanently etch glass if left for a year or more. Pollen and dust hold moisture against window frames, accelerating wood rot and seal failure. Solar gain through dirty glass also drops measurably — your AC works harder than it needs to.

Regular professional cleaning isn't a luxury in LA. It's protection for one of the most expensive components of your home.

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