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DNA Windows
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DNA Windows

Precision Window Cleaning in Portland

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Licensed & Insured
Portland Metro
Residential & Commercial
Satisfaction Guarantee
48 Hour Service
Services

Our Services

Interior and exterior cleaning of all the windows, frames, seals, and tracks across the Portland metro area. 

Residential Window Cleaning

Spring pollen film, bird droppings, and the grime that settles on glass, cleared inside and out.

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Before and after residential window cleaning showing dirty glass transformed to crystal clearBeforeAfter

Commercial Window Cleaning

Storefronts kept clear through Portland's wet season, on a schedule that fits your hours.

Interior & Exterior

Both sides, plus sills and tracks, so the moss and grit at the edges don't get missed.

Screen Cleaning

Screens rinsed free of pollen and cottonwood so airflow and daylight come back.

Hard Water Stain Removal

Mineral etching from sprinklers and roof runoff lifted off the glass, not scrubbed into it.

Post-Construction Cleaning

Paint flecks, adhesive, and construction film scraped away safely with no scratched panes.

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What Our Customers Say:

“Nice, polite, considerate of our property. Overall great experience.”

Mark Evans
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Ryan Joy

“Andrew and Seth did a great job on our windows. Andrew provided a quick easy and reasonable estimate. Seth was very courteous and did a great job on our windows and screens. I would highly recommend their services!”

Elaine McDaniel

“Andrew and Seth were very personable. I appreciated their hard work. Seth was even able to clean my hard to reach windows.”

Mark Evans

“Andrew was a great sales guy who didn't beat around the bush, he was fair and honest. Seth cleaned our windows. Nice, polite, considerate of our property. Overall great experience”

Karra Crawford

“Seth did a great job cleaning the outside of my windows and my screens. He was professional and conscientious. Andrew was great with communicating and was right on time which I appreciate.”

Jackie Ayala

“Clean and sparkly windows! Andrew and Seth were so kind and very detail oriented. I was so impressed! We had our windows and screens cleaned. I would like to highly recommend!!”

Barbra

“Very friendly, thorough and kept us informed, cleaned the screens also!”

Sam (Local Guide)

“Andrew did an exceptional job cleaning our windows. He is professional, licensed, and insured. He has professional equipment, including a water filter to ensure a streak-free finish. I didn't know that was a thing! He did a much better job than I ever have. And he took great care when removing/replacing our old screens. I can't recommend Andrew enough. Andrew can put you in touch with me as a reference.”

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Pricing

Services starting at $70

Transparent pricing. No surprises.

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Why Us

Portland Homeowners Choose DNA Windows

We don't cut corners, we clean them. Here's what sets us apart from the rest.

  • Licensed & Insured for your protection
  • Locally owned Portland business
  • Professional-grade equipment & safe methods
  • Reliable scheduling and clear communication
  • Detail-focused, streak-free results
  • Satisfaction-driven service every time
DNA Windows team cleaning second-story windows with a water-fed pole
Our Name

DNA Windows. Named for the way we work: methodical, structural, complete. We don't just scrub glass, we clean every layer of it, corner to corner, spot to spot, until it's 100% clear and streak free!

Hard water leaves mineral deposits. Pollen sits in the seal. Streaks hide until the sun hits them right. DNA means we don't stop at "looks clean" we go after what's actually on the glass, layer by layer.

We are fully licensed and insured and committed to providing safe, professional service to each and every customer.

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ABOUT US

Built on precision. Backed by results.

DNA Windows was founded by Andrew Kempenich with one standard: every window gets cleaned the right way, not the fast way. That standard has earned DNA Windows a consistent track record of only five-star reviews from homeowners across the Portland metro.

"We don't just clean glass and call it done. We use water-fed pole systems and special deionized water. Deionized water has been stripped of all the minerals that cause spotting. We use that and a quality nylon brush to clean the entire window, frame and seal. That matters here more than most places: when Portland rain hits the exterior frames, any dirt built up will get right back on your windows. We however, clean the frames so your windows stay clean for far longer. Far more than what just a squeegee can accomplish."

It's a more thorough process and homeowners keep calling DNA Windows back.

ANDREW KEMPENICH — FOUNDER, DNA WINDOWS

Before and after comparison of a dirty window sill and track versus a fully cleaned oneBeforeAfter
Before and after comparison of a dirty window frame and track versus a fully cleaned oneBeforeAfter
Service Area

Proudly Serving Portland

DNA Windows proudly serves homeowners and businesses throughout the local Portland area. We're ready to help make your windows crystal clear.

Based in Portland
Map of Portland, Oregon showing the DNA Windows service area
Contact

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DNA Windows serves Portland, OR and nearby areas including Beaverton, Tigard, Lake Oswego, Hillsboro and Gresham. Open Monday–Saturday, 8am–6pm, by appointment. Call or text (503) 863-6591.

Call us
(503) 863-6591
Email us
dnawindows2@gmail.com

Fast, free, no pressure.

  • Hours
    Mon–Sat, 8am–6pm
  • Service area
    Portland, Beaverton, Tigard, Lake Oswego, Hillsboro & Gresham
  • Pricing
    Services starting at $70
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