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Top-Rated Replacement Window and Patio Door Company in Pittsburgh, Lancaster, & Central PA

We are the only window and patio door company serving Pittsburgh, Lancaster, and Central PA that provides 100% stress-free and accurate replacement window and patio door quotes via email. If you don’t have time or patience for a three-hour, high-pressure in-home sales meeting, we’re the perfect solution.

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We oppose ALL sales pressure, so we NEVER twist your arm to get you to hire us. But if you’re looking for superior replacement windows or patio doors and a pleasant experience, we are a great choice. We’ve revolutionized window replacement from top to bottom.

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Your Go-To Window Company in Central PA & LancasterHigh-Quality Replacement Window & Patio Door Installation

Our Windows

The Zen Windows Experience

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

No-Money-Down
Guarantee

Unlike other window companies in Pittsburgh, Lancaster, and Central PA, 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 are thrilled with the results.

Double Warranty
Included

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
Owner

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

Decades of
Experience

Our dedicated installation teams are also comprised of skilled technicians, not day-workers.

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
Pressure

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

Our Process

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

Request a quote. Call us at 866-516-4396 or contact us online to get a free, no-obligation quote.
We’ll contact you soon. Shortly after receiving your request for a quote, we will call you for a quick consultation. We can better understand your needs by learning the number, type, and size of windows or patio doors you’re looking for.
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.
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 or patio doors.
Schedule your installation. Once your new windows arrive, we’ll reach out to schedule an installation date that works for you.
Sit back, relax, and enjoy your new windows or patio doors. We’ll follow up with you to make sure you’re completely satisfied before deeming the job complete.

If this is the kind of stress-free, no-hassle experience you want when buying replacement windows or patio doors in Pittsburgh, Lancaster, and Central PA, get in touch with us today to request your free quote.

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Get a Quote