Crystal Clear Windows Without the Hassle
Professional residential & commercial window cleaning with reliable service and streak-free results.
100% Satisfaction
Guaranteed every visit
A local family business that treats every window like our own.
Thornton Window Cleaning Service is a family-owned, locally operated team dedicated to delivering high-quality results with a friendly, professional touch. We believe in attention to detail, honest pricing, and treating every property like it's our own — so you get sparkling clean windows and a service experience you can rely on.
Everything your windows need
From single-family homes to multi-story storefronts, we've got the tools and expertise to make your glass shine.
Residential Window Cleaning
Pristine windows that brighten every room of your home.
Commercial Window Cleaning
Make a sparkling first impression for every customer.
Interior & Exterior
Inside and out — full coverage, streak-free finish.
Screen Cleaning
Gentle deep cleaning to remove dust, pollen and grime.
Hard Water Stain Removal
Restore clarity to glass damaged by mineral deposits.
Track & Sill Detail
We hand-detail tracks and sills for that finishing touch.
Free Estimates Available
Quick, easy, and no obligation. Reach out by phone, text, or our online form and we'll get back to you the same day.
Quarterly Visits
Year-round shine
Keep Your Windows Clean Year-Round
We offer recurring maintenance plans so your home or business always looks its best. With our quarterly service plans, we return every few months to keep your windows spotless year-round — saving you time and keeping your property looking clean and professional.
- Scheduled quarterly cleanings
- Priority scheduling
- Consistent curb appeal
- Saves time and effort
- Discounted recurring pricing
The clear choice for your windows
Streak-Free Finish
Reliable & On-Time
Affordable Pricing
Friendly Service
Satisfaction Guaranteed
What our customers say
"Absolutely flawless work. My windows look brand new and the team was so kind. We've signed up for the quarterly plan!"
"The storefront has never looked better. Customers actually comment on how clean the windows are. Truly professional."
"Showed up on time, did a meticulous job, fair price. They even cleaned the screens. Highly recommend Thornton."
Request Your Free Estimate Today
We'd love to hear from you. Reach out and we'll get back the same day.
Our Service Area
Proudly serving from Los Angeles down to San Clemente.
Commercial properties trust us
Storefronts, offices and multi-unit properties — on time, every time.
Get a Commercial Quote