Straightforward Pricing
Know what your service should cost before you book. The estimator itemizes your actual windows and selected services.
Professional Window Cleaning • Snohomish County
Professional residential window cleaning with straightforward pricing and an instant online estimate. No phone tag. No guessing what it’ll cost.
Window cleaning made simple
Instant Online Estimate
Choose the counting option that feels easiest. Either way, nothing is scheduled or charged until we confirm the quote with you.
How would you like to get your estimate?
Not sure how to count your windows? No problem. Choose “Count Them For Me” and we’ll take care of it.
Why Harmon Exteriors
Washington-licensed business and insured. Clear pricing. Simple communication. Quality work. That’s how we’d want someone to treat our home, too.
Get My EstimateKnow what your service should cost before you book. The estimator itemizes your actual windows and selected services.
Build your estimate online, approve the confirmed Square quote digitally and receive your invoice without playing phone tag.
Clean glass is only part of a finished window. Add screens, tracks, frames and interior cleaning when you want the full treatment.
Work with an insured owner-operator of a Washington-licensed business who is directly responsible for the service—not a call center.
Services & Pricing
Build the service your home needs. Start with exterior glass, then add interior cleaning and detailing right from your instant estimate.

Professional exterior glass cleaning for a clearer, streak-free finish.
Second-story applicable standard panes: +$3 each
Get an Instant EstimateComplete the view from both sides with careful interior glass cleaning and detailing.
Remove dust, pollen, dirt and buildup from accessible window screens.
Detailed cleaning of accessible window tracks to remove accumulated dirt and debris.
Extra attention to accessible window frames for a cleaner overall appearance.
Approximately four feet wide or four feet tall—or larger. Counted separately.
Sliding glass doors are counted separately from standard exterior panes.
What Clean Windows Change
Clean glass lets natural light through without dirt, fingerprints and buildup dulling the view.
Get the grime off the glass so you’re looking at the Pacific Northwest—not what’s stuck to your windows.
Clean windows make the entire exterior of a home look sharper and better maintained.
Generic brand visual only. It is not a Harmon Exteriors customer project or before-and-after photo.
How It Works
From estimate to finished glass in four simple steps.
Count your windows using our visual guide, select extras and see an itemized estimated price immediately.
Enter your contact and service address. Optionally choose the $10 property-photo permission discount.
We review the estimate, confirm the final price in Square, then provide appointment options after approval.
We complete the selected work, perform a final check and send your invoice digitally through Square.
Takes about 2 minutes • No obligation
Service Area
Professional residential window cleaning is available at launch in these six approved communities.
Not sure your address is in range? Submit it for manual review—we won’t promise service until we confirm.
Mill CreekLynnwoodEdmondsMountlake TerraceShorelineKenmoreLaunch service territoryA New Local Standard
Harmon Exteriors is new, and we’re building our reputation one home at a time. That means every job matters.
You’ll know what you’re paying for, when we’re coming and what work we’re completing.
Careful work around your property, furnishings, landscaping and belongings.
Before the job is finished, we inspect the cleaned windows and address anything needing another pass.
Frequently Asked Questions
Still have a question?
Call/Text707-245-9461Emailharmon@harmonexteriors.comGet My Instant EstimateCount each separate pane of glass, add any second-story access, oversized panes and sliding doors, then choose optional services. The calculator itemizes the price and applies the $100 minimum after any photo discount.
Each separate standard piece of glass counts as one pane. A window with two separate glass sections is two panes. Keep large/oversized panes and sliding glass doors out of the standard count.
A pane approximately 4 feet wide or 4 feet tall—or larger—is oversized and priced at $15 each. Add it separately, not as a standard $5 pane.
Applicable second-story standard panes add $3 each for access. Keep those panes included in your total standard pane count; the calculator prevents the second-story count from exceeding the total.
Yes. A $100 minimum service charge applies to every appointment. The calculator shows any minimum adjustment as its own line item, and the minimum is applied after the optional $10 photo discount.
No. It is a straightforward starting estimate based on the information you enter. Harmon Exteriors reviews the details and confirms the final Square quote before service or scheduling is approved.
Yes. Interior window cleaning is available at $4 per standard pane and requires access to the home.
Yes. Screen cleaning is $2, track detailing is $3 and frame detailing is $2 per standard pane. These add-on rates do not automatically apply to oversized panes or sliding doors.
For exterior-only work, you generally do not need to be home if safe access is available. Interior work requires arranged access to the home.
Light weather does not always prevent cleaning, but unsafe or unsuitable conditions can require rescheduling. Harmon Exteriors will communicate any change.
Yes. Harmon Exteriors is a Washington-licensed business and is insured. Active Washington business licensing and insurance are mandatory publication requirements; no license number, carrier, policy, coverage or bond details are published here.
Launch service is limited to Mountlake Terrace, Lynnwood, Edmonds, Mill Creek, Shoreline and Kenmore. Addresses that cannot be confidently matched are sent for manual review.
You may optionally authorize before-and-after property/work photos for marketing and receive $10 off. The box is never preselected, declining does not affect service, and the $100 minimum is applied after the discount. It does not authorize use of your face, name or testimonial.
After you approve the confirmed Square quote and the work is completed, Harmon Exteriors sends an electronic Square invoice. The website does not collect or store payment-card information.

Ready for a Clearer View?
Build your estimate online in about two minutes. Choose exactly what you want, see your estimated price and send it to Harmon Exteriors for confirmation.