Get in Touch
Get a Fast, Accurate Quote on Replacement Windows Without an In-Home Salesperson

  • Please enter a number greater than or equal to 0.
  • new home window replacement
  • home after window replacement with Zen Windows sign out front

Window Replacement Company in Denver & Colorado Springs

Welcome to the Denver and Colorado Springs window installation company that thinks differently. Our no-pressure window replacement process gets you a quote without a down payment or having a pushy salesperson visit your home. Our quotes are guaranteed to be 100% accurate with no hidden fees.

If you’re looking for Denver window replacement, we offer turnkey solutions. We install all styles, from standard double-hung to bay windows and sliding glass doors.

High-Quality Windows at a Lower Price

Our replacement windows are of superior quality but without the sky-high prices of some heavily advertised brands. Our professional Denver window installers have replaced thousands of windows for homeowners throughout Denver and Arapahoe County.

The Zen Windows Experience
With Zen Windows Denver, you’ll be amazed at how easy it is to replace your windows and doors. Here’s what makes us different:

Unlike other window companies in Denver & Colorado Springs, we never ask for a down payment. If you decide to move forward with the installation, you won’t pay a dime until the work is done and you're thrilled with the results.

Double Warranty

Our products come with a lifetime warranty, which covers both materials and labor. Your replacement windows, including screens, are guaranteed to last as long as you own your home.

Work Directly With the

Customers have direct access to our local owner. Feel free to ask questions, request product information, and seek updates about your project.

Decades of

Our dedicated installation team is comprised of skilled technicians.

Simple &
Accurate Quotes

Our unique, hassle-free process makes it easy to get a window installation estimate. Simply answer a few questions over the phone, and we’ll generate a quote with guaranteed accuracy.

No Sales

Our customers find it refreshing that we never apply high-pressure tactics to convince you to buy on the spot. Instead, we provide the information you need to make an informed decision.

Our Process

Only a few steps stand between you and your beautiful new windows and doors.

  1. Request a quote: Call (303) 658-9990 or contact us online for a free, no-obligation quote.
  2. We’ll contact you soon: Shortly after receiving your request for a quote, we’ll call you for a quick consultation. We can better understand your needs by learning the number, type, and size of windows you’re looking for.
  3. Receive an accurate quote: Our team will email you a precise quote for your project. Unless you make any changes or request different products, the quote you receive is the price you’ll pay — guaranteed.
  4. Finalize your order: Whether you’re ready today, next week, or next month, let us know. We’ll set up your measuring appointment within 48 hours to ensure exact dimensions when ordering your replacement windows.
  5. Schedule your installation: Once your new windows arrive, we’ll reach out to schedule an installation date that works for you.
  6. Sit back, relax, and enjoy your new windows: We’ll follow up with you to make sure you’re completely satisfied before deeming the job complete.

Is this the kind of stress-free, no-hassle experience you want when buying replacement windows in Denver and Colorado Springs?

Then contact us today to request your free quote.

Simple and Accurate Quotes
Our Testimonials
See what our customers have to say about working with Zen Windows Denver & Colorado Springs!

“The installers are absolutely incredible! I commend you on having such talented and professional installers."

The Parkers

"I have got to say this was the best experience in home improvements I have EVER had!!! NO STRESS!!!"

Susan T.

We went with Zen Windows 2 years ago to replace the original wooden windows in our 1950's home. Not only was the process super simple from quote to instalation, 2…

Sydney B.

An absolute GREAT experience buying windows - way better than going to a window place like we've done in the past. Jessica S. is definitely on top of things. She…


Their sales people and did the pitch, let me call my manager, say yes, get more off, etc, etc, but Zen was totally different. No sales person, no pressure, amazing…

Phil G.

Wow! This is the way to get your windows replaced! Great product, good value, fast and efficient installation, lifetime warranty. What else do you need? Go with Zen!

Vit Z.

Got a replacement slide patio door from Zen last year. This year we replaced 3 old windows with 2 double hung, double pane, low-e and a garden window. Extremely smooth…

Thanh N.

We got our windows put in at the end of November 2020 and couldn't be more happy with the results. This company worked with us during the Pandemic to get…

Janelle O.

We used Zen to replace majority of the windows in our house, and the results were amazing. Their approach to cut out the pushy sales guy is great! Being able…

Lorraine S.
Frequently Asked Questions

Do you require a deposit?

Absolutely not. Our advice is to never give a down payment to a window company. We would never ask for payment on services not rendered.

What are my payment options?

Pay with cash, check, or the credit card you choose. We also offer financing on window replacement and installation.

Do you offer financing?

Yes. We offer 12 months same-as-cash or an option that’s tailored for your situation. Call 303-658-9990 or contact us online for details.

How long will it take to complete my window installation project?

After you’ve received your window installation quote and have decided that you’d like Zen Windows Denver to replace your windows, just give us the go-ahead. Usually, we’ll come in a few days to take exact measurements. After that, we’ll complete your project in three to five weeks.

Are your windows manufactured in Colorado?

We proudly offer Soft-Lite Windows, which are manufactured in Streetsboro, Ohio. After thousands of Soft-Lite window installations in the Denver, Colorado, area, we’ve never had an issue with the altitude.

Do you offer a lifetime warranty on your windows?

Yes, and we believe our warranty is pretty special. Not all lifetime warranties are created equal. Our warranty covers every window we sell, and as long as your home is still standing, you’ll never have to spend another dime on your windows. This means we pay for the window, glass, installation, and trip expenses. There’s no fine print or exclusions, and the warranty is fully transferable every time the home sells. How much more zen could a warranty be?

Should I replace my whole window or just the window glass?

When a windowpane is broken, replacing just the glass may seem like a less costly alternative to replacing the entire window, but there are several factors to consider. The replacement glass will likely have a shorter, less inclusive warranty than the rest of the window. Plus, if anything other than the impact contributed to the glass failure — such as a warped frame, a faulty counterweight, or damaged seals — that same issue may cause the new glass to fail. Finally, the replacement glass won’t be nearly as energy-efficient as the original window or a new one, counteracting much of the savings of a glass replacement.

Do you install windows in the winter?

Yes, we do! To prevent heat loss, we take all precautions possible. We replace a minimum number of windows at a time and close off rooms as we work.

What if I want a salesperson to come to my home?

If you want a stranger to come to your home and give you the old “dog-and-pony show” sales pitch with heat lamps on your kitchen table, we probably aren’t the company for you. Our goal is to make replacing your windows fast, easy, and hassle-free.

Will the quote change when you come to measure?

No. A quote from Zen Windows is more than an estimate — it’s a promise. We won’t change the quote when we come to measure (or ever!).

How can you give an accurate window installation quote without coming into my home?

After years of quoting projects, we’ve learned to ask the right questions to get the needed information. Zen Windows Denver also uses internet research. If you have something unusual, just email or text us a picture. It’s that simple.
service areas