1800 COMMERCE ST
BOULDER, CO 80301

Mon - Fri: 8:00AM - 5:00PM

Sat: By appointment only

Sun: Closed

98.6% would refer friends and family to us

5 stars Customer since 2019

So much more light in our home since North Star cleaned our windows!

5 stars Customer since 2020

The service is efficient and friendly from making an appointment , being on time, and most of all, my windows sparkle . ... Read More

3 stars Verified customer

Looked like they were doing a great job but There were streaks and drips on the windows after they left.

5 stars Customer since 2020

Just the best.. professional thoughtful clean efficient workers; windows always look as good as they possibly can!

5 stars Customer since 2019

Terry is attentive to his customers and scheduling is easy. His window cleaners are fast and thorough. Couldn't ask for ... Read More

5 stars Customer since 2014

I have been using North Star Window cleaning since the beginning of time.

I always receive the best job one could expect ... Read More

5 stars Customer since 2012

David showed up right on time. Did whole house, inside and out. He was very pleasant and did the MOST Excellent job.

Th ... Read More

5 stars Customer since 2023

Excellent work. Our windows have never looked this good.

5 stars Customer since 2020

I have used them for years for a 9 story building in Boulder - always responsive, professional and prompt!

5 stars Customer since 2023

The technician was very professional and accomplished a difficult and somewhat dangerous situation beautifully!