Replacement Windows in Boulder, CO
Honest quotes. Energy-smart windows. Installation done right.
Boulder weather is tough on windows—icy winters, high-altitude sun, wildfire smoke, and steady street noise all put stress on your home.
If your frames are worn or your glass is fogged, every season feels like a fight against drafts and rising energy bills.
Most companies turn that frustration into a pushy sales pitch. Zen Windows does it differently.
We give you a fast, accurate online quote, straight pricing with no gimmicks, and professional window installation in Boulder that respects your time and your home.
If you’re looking for replacement windows in Boulder, CO that deliver comfort, efficiency, and lasting value—without the nonsense—you’re in the right place.
Replacement Windows in Boulder, CO
Honest quotes. Energy-smart windows. Installation done right.
Boulder weather is tough on windows—icy winters, high-altitude sun, wildfire smoke, and steady street noise all put stress on your home.
If your frames are worn or your glass is fogged, every season feels like a fight against drafts and rising energy bills.
Most companies turn that frustration into a pushy sales pitch. Zen Windows does it differently.
We give you a fast, accurate online quote, straight pricing with no gimmicks, and professional window installation in Boulder that respects your time and your home.
If you’re looking for replacement windows in Boulder, CO that deliver comfort, efficiency, and lasting value—without the nonsense—you’re in the right place.
Boulder’s Better Window Upgrade
Comfortable rooms. Lower bills. Crisp mountain views.
Signs Your Windows Are Past Their Prime
Sticky sashes, rattling frames, drafts by the sofa—these are more than quirks. They’re signals your windows aren’t doing their job. Many Boulder homes, such as mid-century gems, craftsman bungalows, modern builds near Pearl, still rely on aging units that were never designed for today’s energy demands. New windows restore smooth operation, stabilize room temperatures, and give your home a more settled, quiet feel.
Built for Colorado Conditions
At elevation, UV exposure is intense, and winters bite. Our energy-efficient windows for Boulder feature Low-E glass paired with insulated frames and a tight installation to minimize heat transfer and reduce glare. The payoff: steadier indoor temps, less strain on your HVAC, and a calmer, quieter interior, whether you’re near Broadway, in Table Mesa, or up toward Wonderland Lake.
Style That Fits Your Architecture
From mountain contemporary to brick ranch, new windows sharpen lines and highlight original character. Thoughtful profiles, clean finishes, and the right grid patterns update the exterior and brighten the interior without a full remodel. It’s a fast way to lift curb appeal and long-term value.
A Smarter Way to Buy and Install Windows
Forget the marathon sales visit. With Zen Windows, you request an online quote, review it privately, and move forward on your terms.
Pricing is straightforward: no fake markdowns, no surprise add-ons. When you give the green light, we schedule a precise measure, confirm choices, and submit your order.
What Happens on Installation Day
You’ll have timelines in advance and updates while your custom windows are being built. Our experienced subcontractor crews arrive prepared, protect floors and furnishings, and maintain a tidy workspace. When the last sash is set, we walk the project with you, check locks and screens, and make sure operation feels right in every room.
Warranty That Stays With You
Every project is backed by our Double Limited Lifetime Warranty, which covers both materials and workmanship. If questions arise in the future, we’re easy to reach and quick to help. That’s why homeowners across Boulder County treat Zen Windows as their go-to window contractor.
Window Styles That Work in Boulder Homes
Choosing styles should feel fun, not overwhelming. We’ll pair each room with the right look and function—ventilation where you want it, wide views where you love them, and glass packages that make sense for sun, altitude, and noise.
Popular styles we install in Boulder include:
- Double-hung windows
- Sliding windows
- Casement windows
- Garden windows
- Bay windows
- Awning windows
- Bow windows
- Hopper windows
- Round top windows
- Special shape windows
Every option is available with Energy Star Certified glass packages, including Low-E coatings and double or triple-glazed glass built for Colorado’s swings from bluebird days to arctic fronts.
Cut Energy Bills, Not Corners
We deliver real efficiency and real comfort without the sales games.
Energy talk should be plain. Our windows use Low-E to block harsh sun, insulated frames to limit thermal loss, and careful installation to stop drafts at the source. The result is easy to feel: steadier temperatures, less glare, quieter rooms, and energy costs that don’t yo-yo each season.
Need more performance? We’ll suggest upgrades that matter for your home: triple-glazed glass for west-facing rooms, enhanced sound control near busy streets, or specialty packages for higher-elevation exposure. You’ll see what each choice does, what it costs, and why it’s worth it for your goals. No pressure—just clear options and straight numbers.
“5-star experience with Zen Windows. . . . Customer service deserves 10 stars!”
I had a 5-star experience with Zen Windows. Their customer service deserves 10 stars! My initial contact with Luke Milligan sold me on Zen and he was available through the whole process from start to finish. Alex did a great job measuring for my new windows. Misty kept me updated on the status of my order. On install day, Jesse, the project lead, introduced me to his team and checked in consistently. I had two install leads who directed the others to install my windows. Everyone was professional, polite, and very knowledgeable about Zen Windows. This team goes above and beyond to make sure you are 100% satisfied with your new Zen windows. I love my new Zen windows!
— Nancy K.
We had a great experience with Zen Windows. The communication along the way was superb, and there were no high-pressure sales tactics. The windows look beautiful and are a much-needed upgrade to our original windows!
— Chas S.
What a great experience working with Zen Windows! Their team was excellent to work with from start to finish. Professional, kind and experts at what they do. And their windows are top quality.
— Lisa M.
Boulder Homeowners Ask, We Answer
Do you install across Boulder County?
Yes, we serve Boulder and nearby communities, including Louisville, Lafayette, Superior, Gunbarrel, and many more across the Denver metro area.
Can I get a quote without a home visit?
Yes, that’s our specialty! Send a few details and we’ll provide a clear online quote. When you’re ready, we’ll schedule a quick measure to lock in sizes.
How long does installation take?
Most projects wrap in a day once your custom windows arrive. Crews prep carefully, work efficiently, and finish with a walkthrough.
What if we uncover wood rot or damage?
If issues appear during removal, we explain what we found, outline options, and handle repairs the right way—without derailing the project.
Who installs my windows?
Experienced subcontractor crews who meet our standards for quality and care. They protect your home, work cleanly, and review everything with you.
How much do replacement windows cost in Boulder?
Pricing depends on style, size, and glass package. You’ll get straight numbers—no “today-only” gimmicks—so you can compare and decide with confidence.
The Clear Choice for Window Replacements in Boulder
Enjoy stress-free quotes, energy-smart results, and a warranty you can truly count on.
With Zen Windows, you’ll see exactly what your replacement windows in Boulder will cost, why each configuration makes sense, and how installation will unfold. Communication stays quick and clean, scheduling is simple, and the finished product looks as good as it performs. When all is said and done, you’ll have energy-efficient windows that lift comfort, quiet the home, and sharpen curb appeal—all backed by our Double Limited Lifetime Warranty.
When neighbors ask which window company in Boulder you trusted, the answer is easy: the one that made it simple and delivered what it promised.