Commercial Window Cleaning in the Conejo Valley

Streak-Free Interior & Exterior Glass Maintenance for Commercial, Industrial and Retail spaces all over the Conejo Valley.

Licensed, Bonded & Insured • Same Crew Every Week • No Long-Term Contract Required

What You'll Notice After We Take Over

The glass stops being something you notice at all. No streaks showing up in the afternoon, no gray line along the bottom of every pane, and no dirty water dripped down the wall under the sills.

Anybody can make glass look clean while it's still wet. We make sure it still looks good long after we've left.

What Commercial Window Cleaning Is

A squeegee, not a rag. That's most of it. A rag and a spray bottle push dirt around the pane and leave a film behind, which is why glass cleaned that way looks worse three weeks later than glass nobody touched.

The professional version is a strip washer to break the dirt loose, a squeegee with a fresh rubber blade to pull the water and the dirt off the glass in one pass, and a towel to detail the perimeter where the blade can't finish.

Then the part everyone skips. Frames, sills, and tracks hold dirt that washes back down the pane in the first rain, which is why a job can look perfect in June and terrible in December.

Businesses We Serve Across The Conejo Valley

Gyms that want their coaches coaching. You have classes stacked back-to-back, instructors on the mat all day, and a front desk handling sign-ups. Nobody on your payroll should be mopping mats at 9:00 PM, that’s our job.

What's Included Every Visit

Most quotes cover the glass. A window is a pane, a frame, a sill, a track, and a screen, and four of those five are what decide how long the glass stays clean.

Storefront glass, entry doors, and display windows
Upper-floor glass, done to the same standard as the storefront
Frames, sills, and tracks wiped and cleared of cobwebs
Bug specks, tape residue, and stickers removed by hand
Screens taken out, washed, and reset

Lobby doors and office windows, hand squeegeed
Interior glass partitions and conference rooms
Mirrors, dividers, and reception glass
High entry glass, transoms, and vaulted lobby windows
Perimeter and corners detailed after every pane

Are smudged windows making your business look neglected?

Glass gets dirty so slowly that the people inside stop seeing it. Everyone walking in sees it the whole time. Free walkthrough and a written proposal.

How It Works

Five Steps, and it starts with a coffee.

We bring coffee to every walkthrough. Just let us know your order.

Walk Your Building Property

We meet on-site and count the glass with you, one elevation at a time. Interior and exterior, storefront and suite, screens and partitions. Nothing here gets quoted off a photo or a guess at square footage.

Check What's Actually on the Glass.

We look closely at what's actually on the panes. Sprinkler spray, mineral spotting, adhesive, old tape, paint overspray, and construction residue all come off differently, and some of it isn't coming off at all.

Schedule Around Your Needs

Retail and restaurants get done before the doors open. Offices and medical suites get a slow weekday. Either way nobody is squeezing past a bucket in the entry, and the date we give you is the date we show up on.

Show Up On Time and Do the Glass

We start when we said we would. Exterior first so drips land on glass we haven't finished, then interiors, then frames, sills, and tracks. Every perimeter gets detailed by hand before we call a pane done.

Final Walkthrough Together

Mark doesn't disappear once the invoice clears. We walk the whole building after the glass has fully dried, which is the only time anyone can honestly judge it, then set the recurring interval together.

What Your Other Bids Are Leaving Out

Three quotes will look close. The difference is what nobody wrote down.

Ask whether the price includes frames, sills, and tracks. Most bids are panes only and it isn't stated anywhere. That's why a job looks perfect on day one and has a dirty line down the bottom of every window after the first rain, when everything sitting in the track washes back onto the glass.

Ask whether screens are included, and whether interior is separate. Those are the two line items that turn a low bid into a higher invoice, and both should be settled in writing before anybody starts.

Anybody can make glass look clean while it's still wet.

Don't let dirty glass be the first thing customers notice.

What Sets Us Apart Is Finishing the Window, Not the Pane

The glass is maybe seventy percent of the job. The rest is the frame, the sill, the track, and the screen, and that's the part that decides how long the glass stays clean.

Mark is a fourth-generation tradesman who started working commercial buildings alongside his father at ten years old. That's a construction background before it's a cleaning background, and it's why a window is a whole assembly to us instead of a piece of glass.

A Squeegee Removes Dirt. A Rag Relocates It.

Spray cleaner and a rag lift some of the dirt and spread the rest, then leave a film that the next two weeks of dust sticks to. That's the whole reason glass cleaned by a general crew looks bad faster than glass nobody touched.

A strip washer breaks the dirt loose and a squeegee pulls it and the water off the pane in one pass. Nothing gets pushed to the edges to dry there.

The Edges Are Where Amateurs Get Caught

A squeegee blade can't finish flush into a corner. Every pane ends with a thin line of water at the perimeter, and if nobody detoured back for it, that line dries as a visible border around the whole window.

Every pane gets its perimeter detailed with a dry towel after the squeegee. It's the slowest part of the job and it's the difference between glass that looks clean and glass that looks professional.

Frames, Sills, and Tracks Are Part of the Job

Every track on your building is holding dirt, and the first rain washes it straight down the pane. That's the gray line along the bottom of every window in a building that gets cleaned by somebody doing panes only.

We clear them on the same visit. It takes longer, it's the least glamorous part of the work, and it's the single biggest reason the glass still looks right two months later.

The Spots Aren't Dirt. They're the Water.

Glass that gets spotted a day after cleaning didn't get dirty again. Tap water carries dissolved calcium and lime, the water evaporates, and the minerals stay behind on the pane.

We run our water through a deionizing system so there's nothing left in it to dry onto the glass. That's the difference between a window that looks right for a month and one that looks like nobody was ever there.

We'll Point at the Sprinkler Before We Quote the Glass

Sprinkler overspray hitting the same windows every morning is the most common glass problem on commercial property here, and almost nobody connects the two.

Left alone, the minerals build up until they damage the surface itself. We'll show you the head that's doing it and quote the repair, because cleaning glass that gets sprayed again tomorrow is money you spend twice.

While We're Cleaning Your Windows

We fix what's broken.

A window crew has hands on every pane, frame, and screen on your building. That's more contact with your glazing than anyone gets all year. Failed thermal seals, which show as haze between the panes of a double-pane window and never wipe off. Cracked glass, failing perimeter caulk, dry weatherstripping, sticking latches, and screens coming apart at the corners.

You get a complete list with photos. We fix what we can, and refer you to a trusted specialist for what we can't.

Most of the time it's fixed before you even hear about it.

Areas We Serve

Thousand Oaks
Westlake Village
Newbury Park
Agoura Hills
Calabasas
Simi Valley
Moorpark
Camarillo
Oxnard
Ventura
Malibu
Woodland Hills
West San Fernando Valley

Industries We Serve

Auto Dealerships
Churches
Dance Studios / Youth Centers
Dental / Medical Offices
Gyms / Fitness Centers
HOA's
Offices
Open Houses
Restaurants
Retail Spaces
Schools
Warehouses
Podcast Studios

Window Cleaning FAQ

Our most frequently asked questions about commercial window cleaning in the Conejo Valley.

How is this different from having our janitor do the windows?

A squeegee removes dirt. A rag moves it to the edges.

Spray cleaner and a towel lift some of the dirt, spread the rest, and leave a film behind that the next two weeks of dust sticks to. A strip washer and a squeegee pull the dirt and the water off the pane in one pass, then the perimeter gets detailed by hand. Same glass, completely different result a month later.

Do you clean the frames, sills, and tracks, or just the glass?

All of it, and it's the reason the glass still looks right in two months.

Most bids are panes only and never say so. The dirt sitting in your tracks washes straight down the glass in the first rain, which is the gray line along the bottom of every window in a building cleaned that way. Frames, sills, and tracks are on the same visit and in the same price. Ask the other bidders whether theirs are included, because the answer is usually no.

Does this include interior glass and partitions?

Yes, if you want it. It's quoted as its own line so you can see it.

Interior work covers lobby doors, vestibules, office windows, conference room partitions, mirrors, and reception dividers. Plenty of buildings run exterior more often than interior, since outside collects dust and sprinkler spray while inside collects fingerprints. Splitting the pricing lets you set two different frequencies instead of paying for interior work you only need twice a year.

Are screens included?

Yes. They come out, get washed, and go back in the same opening.

Screens hold more dirt than people expect, and a dirty one undoes a clean window the first time the wind picks up. We wash and rinse them, let them dry, and reset them where they came from. If a frame is bent or the mesh is torn, you get a photo of it while it's off the building instead of finding out later.

How much does commercial window cleaning cost?

We price by the building, not by the square foot, and the quote is the number.

Pane count, glass type, how much is interior, screen count, and how often you want it are what move the price. Anyone quoting per square foot over the phone is guessing, because a hundred small storefront lites and twenty large office panes take completely different amounts of time. Frames, sills, tracks, and screens are in the number we give you. There is no separate line that appears after the work is done.

Does upper-floor glass cost more than ground floor?

Yes. Upper floors take longer per pane, so they price differently.

You'll see it on the proposal before you agree to anything. No surprises after the fact.

How often should our windows be cleaned?

Storefronts and restaurants every two to four weeks. Offices and medical, quarterly.

Frequency follows how many hands touch the glass, not how much glass you have. A retail entry with doors opening a thousand times a day needs a different cycle than a suite nobody touches. Interior and exterior often run on separate schedules too. We set both after we walk it, and we'd rather put you on the right interval than sell you the most visits.

Can windows be cleaned after hours or on weekends?

Yes, and for most of our accounts that's the default.

Retail and restaurants get done before the doors open. Offices and medical suites get a slow weekday or a weekend. Nobody is working around a bucket in your entry, no meeting gets interrupted, and no customer's car gets wet. Tell us your quietest window at the walkthrough and we'll build the schedule around it rather than around our route.

Why do our windows spot again a day after they're cleaned?

That's the water, not the dirt.

ap water carries dissolved calcium and lime. It dries off the pane and the minerals stay, which is the spotting people blame on the crew that just left. We run our water through a deionizing system, so there's nothing in it to leave behind. Same building, same glass, and the difference shows up the following week rather than the following morning.

What about the sprinkler spots on our glass?

We'll show you the sprinkler causing it and quote the repair before we wash the glass.

Overspray hitting the same windows every morning is the most common glass problem on commercial property around here, and the minerals build up until they damage the surface itself. Cleaning glass that's getting sprayed again tomorrow is money you spend twice. We fix the sprinkler first, then the windows stay clean.

Are you licensed, bonded, and insured, and can we get a COI?

Yes, and the certificate comes before the first visit, not after you ask twice.

Conejo Cleaning & Maintenance LLC carries commercial general liability, workers' compensation, and commercial auto coverage, and we're registered with the California Labor Commissioner as janitorial employers are required to be. We'll name your ownership entity or management company as an additional insured by endorsement, and the certificate goes to whoever your property manager or landlord tells us it needs to go to.