This team has a high level of detail, communication, and follow through. Max is the best there is.
About us
Elevating Boulder County's spaces through exceptional window cleaning and vibrant local spirit.
Where exceptional service meets natural enthusiasm.
— and we mean it.
Max Greene has been keeping windows clean for over 15 years and built out the Happy Glass crew 6 years ago to bring his personalized friendly service to every Boulder County business and homeowner. We're the team Dave Q. trusts with the Big Red F restaurants at any hour, the crew Nick Karas sends to every corner of Willow Home, and the people Nina calls when Kiln needs to sparkle.
We love spreading the word about local favorites, helping people discover the best of what Boulder has to offer. For us, it's all about making meaningful connections — whether that's bringing businesses and customers together or sharing stories that matter.
We take pride in celebrating our clients' successes, highlighting the passion and dedication that make them stand out. And of course, we're always happy to share Boulder's best, from hidden gems to longtime favorites, because great things are meant to be shared.
Community first
We name names. Big Red F, Willow Home, Kiln Boulder. These aren't clients — they're neighbors.
Prompt & confidential
We'll leave everything just as it was, except, of course, any dirt that was near the windows.
No bots, no upsell
Max reads every quote request himself. One business day, usually faster.
What our neighbors say
Trusted by Boulder's best.
Max and his team at Happy Glass Window Cleaning are not only thorough and reliable, but they are also incredibly friendly and easy to work with. They always leave our windows sparkling clean and make the whole process smooth and hassle-free.
If I were a bird I'd be dead by now.
Max takes a ton of pride in his work and offers exceptional service. I highly recommend!
Max is there regardless of rain, snow, high winds, hail, powder days, playoff games and the like. You might think he should take the day off. He won't. You windows will be clean.
Old Barrel has been working with Max and his team for 3 years now, and I've never considered any other company! Max is incredibly friendly and consistent with his work.
Say hi.
We're a small crew. The fastest way is a short note — tell us where you are and what you need.