House window cleaning in San Ramon.
Optic Window Co. cleans windows in San Ramon, California for $12 per window outside and $18.50 per window inside and out, with screens at $5 each. Owner Devan Towslee does every job by hand and texts a written price before any work. Plans save 10 to 25 percent on every visit.
Every pane, both sides.
- Outside glass scrubbed and squeegeed, frames wiped
- Inside glass cleaned and sills wiped, with drop cloths down
- High outside glass cleaned from the ground with a water fed pole and purified water
- Screens and tracks added on request
- Before and after photos sent when I finish

Priced by the window. Written before I start.
$12 a window
Glass and frames on the outside of the house.
$18.50 a window
Both sides of every pane, plus sills on the inside.
$5 a screen
Washed, dried and reset. Tracks are $5 each. Every visit has a $125 minimum.
On a plan, every visit is 10 to 25% less, and Quarterly and Monthly plans clean screens free. See the plans. These rates power the estimator. Hard water spots, skylights and unusual glass are quoted from your photos, so the price you get by text is the price you pay.
Three steps. No surprises.
Send a photo
Text a picture of your windows to 218.451.6780, or add photos on the price form. Tell me inside, outside or both.
Get a straight price
A written price by text before any work. What I quote is what you pay. No add ons sprung at the door.
Clear glass
A reminder before the visit, a text when I'm close, and before and after photos in your phone when I'm done.
Count your windows. Add a photo. Done.
Set your window count to see an estimate, add a few photos, and send it. Devan texts you a written price. What he quotes is what you pay.
Home window cleaning questions.
How much does window cleaning cost in San Ramon?
Optic prices by the window. Outside only is $12 per window, inside and outside is $18.50 per window, and screens are $5 each, and tracks are $5 each. Every visit has a $125 minimum. Hard water spots and unusual glass are priced in your written quote. Use the estimator on the Get a price page, then send a photo and you get a written price by text before any work.
Do you clean inside windows?
Yes. Optic cleans inside glass and sills as well as outside glass and frames. Choose inside and outside when you ask for a price.
How often should I have my windows cleaned?
Most East Bay homes do well with a cleaning in spring and again in fall, since dry summers leave dust and the first rains leave spots. Storefronts usually look best with a cleaning every two to four weeks.
How do you clean high windows?
Reachable glass is cleaned by hand with a scrubber and squeegee. High outside glass is cleaned from the ground with a water fed pole and purified water, which dries without spots.
Do I need to be home?
For outside work you usually do not need to be home, as long as gates are open and the windows can be reached. For inside work, someone needs to let Devan in. You get a reminder before the visit and a text when he is on the way.
What about hard water spots?
Hard water spots from sprinklers take a different treatment than regular cleaning. Point them out in your photos and they are priced in your written quote, so there are no surprises.