Professional Window Cleaning

Crystal Clear Windows. Protected & Maintained.

Our professional RO/DI purified water system delivers streak-free, spot-free windows while helping protect your glass from mineral buildup and long-term staining. Whether you need a one-time cleaning or scheduled quarterly maintenance, GlassHouse Exteriors keeps your windows looking their absolute best year-round.

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Window Cleaning RO DI Cleaning Screen Cleaning Window Cleaning Results
Fully Insured
Satisfaction Guaranteed
Free Estimates
Residential & Commercial
Reliable Scheduling
PROTECT YOUR WINDOWS. PROTECT YOUR HOME.

More Than Clean Windows — We Help Protect Your Investment

Professional window cleaning isn't just about appearance. It helps preserve glass, improve visibility, identify hidden window issues, and extend the life of your entire window system.

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Prevent Glass Damage

Hard water deposits, pollen, mineral buildup and environmental contaminants can permanently etch glass if left untreated.

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Complimentary Window Health Report

Every service includes an assessment of seals, moisture intrusion, frame deterioration and other issues that may impact performance.

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Longer Lasting Results

Our purified RO/DI cleaning process helps keep windows cleaner longer while reducing spotting and residue buildup.

✓ 90-Day Clean Guarantee

Confidence Backed By The GlassHouse Promise

If an issue related to our cleaning service arises within 90 days, we'll return and make it right. No hassle. No excuses. Just exceptional service.

Ask About Our Quarterly Maintenance Program

Enjoy crystal-clear windows year-round with scheduled maintenance visits designed to prevent buildup, extend window life, and keep your home looking its best.

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Trusted By Colorado Homeowners

5-Star Rated Window Cleaning & Exterior Services

★★★★★ 5.0 Rating Based On Verified Customer Reviews
★★★★★

"Their team came to our door; we usually listen politely and say no thank you. But this time, we were very impressed with these guys—professional, young, likeable go-getters. They came back promptly at 4:00 as promised and quickly got to work. Several hours later we had squeaky clean windows. Better yet, we had a hard rain a few days later and there were still no spots. They have a new system that clearly works. Give these guys a try—you won't be disappointed."

— David Blackford
★★★★★

"Impressed with the quality of Nate's work and his professionalism. He was prompt and got the job done quickly. Our windows look fantastic and he even helped identify issues with our aging windows."

— Danny Fagan
★★★★★

"Great price and excellent results. The process was easy, the team did a fantastic job, and I was able to schedule my future cleanings for the year."

— Katie Frey
★★★★★

"Professional from estimate to completion. After the cleaning we walked every window together and everything looked perfect. We're now on a quarterly schedule."

— Andrew Patrick
★★★★★

"The team worked hard, did a great job, and maintained a high level of professionalism throughout. I highly recommend their services."

— Mike Nicholls
★★★★★

"Outstanding job. The crew was professional, punctual, and handled even the hard-to-reach windows with care."

— Namkyung Cho
★★★★★

"Showed up on time and the windows were cleaner than when they were installed. The walkthrough afterward ensured everything was perfect."

— Michelle Kits
★★★★★

"Nathaniel listened carefully, answered all of my questions, and thoroughly explained everything. Very professional and detail-oriented."

— Angela Di Santo
★★★★★

"Fast, professional, on time, reasonably priced, and the windows and screens looked amazing when they finished."

— Melissa Garland
★★★★★

"Polite, thorough, and did an excellent job. Would absolutely use them again."

— S G
★★★★★

"Amazing service and very kind employees. Efficient, professional, and my windows look good as new."

— Nolan Roberts
★★★★★

"Professional, reasonably priced, and made sure everything was perfect before leaving."

— Sonia Bryant
★★★★★

"Arrived on time, left no mess behind, and the windows look fantastic."

— Brenda Moll
★★★★★

"These folks are the best. Arrived early and did a fantastic job."

— Colorado Jazz Repertory Orchestra

Get Your Free Window Cleaning Estimate

Answer a few quick questions and we'll provide a customized quote for your home or business.

Why Homeowners Choose GlassHouse

💧 RO/DI Pure Water Cleaning
✨ Spot-Free Finish
🏠 Residential & Commercial
🔄 Quarterly Maintenance Plans
🛡️ 90-Day Touch-Up Guarantee
⭐ Satisfaction Guaranteed

The GlassHouse Window Cleaning Process

Our proven 3-step process delivers streak-free windows, longer-lasting cleanliness, and a professional assessment of your window system's overall condition.

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01

Inspect & Prepare

Before cleaning begins, we carefully inspect the glass, frames, seals, screens, and surrounding areas to identify problem spots and determine the safest, most effective cleaning method for your home.

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02

RO/DI Pure Water Cleaning & Protection

Our commercial-grade Reverse Osmosis and De-Ionized water system removes minerals and contaminants that cause spotting. We finish with a protective coating designed to help repel dirt, water, and contaminants for up to 90 days.

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03

Quality Check & Window Health Report

Before we leave, every window undergoes a final quality inspection. We also provide a complimentary Window Health Report highlighting failed seals, moisture intrusion, frame deterioration, and other issues that may affect performance or indicate future replacement needs.

✔ Streak-Free Results   |   ✔ 90-Day Glass Protection   |   ✔ Complimentary Window Health Report