Window Company
York, PA
Flexible Financing Plans
Free Same-Day Estimates
Warranties Available
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Upgrade Your Home With Beautiful, Energy-Efficient Windows
Are you looking for a window company in York, PA? Appleby Systems has helped homeowners in York, PA improve their properties since 1977. With five decades of experience, our family-owned business knows how to deliver outstanding window installation and replacement services that improve comfort, efficiency, and curb appeal.
We're fully licensed and insured, and we offer flexible financing plans to fit your budget. You'll also receive a free same-day estimate when you reach out. Contact us today to learn about our warranty information and discover how our window company in York, PA can upgrade your home's windows.
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Why Choose Us
Flexible Financing Plans
Free Same-Day Estimates
Warranties Available
Founded in 1977
Fully Licensed and Insured
50 Years of Experience

Quality Awning Windows
Premium Bay Windows
Bow Windows Solutions
Best Casement Windows
Appleby Systems offers casement windows that swing open like doors, providing unobstructed views and superior airflow control with easy-to-operate cranks.
Double Hung Windows
Fixed or Specialty Shape Windows
Fixed and specialty shape windows don't open, but they do provide stunning architectural interest, maximizing natural light in unique configurations.
Garden Windows Services
Professional Hopper Windows
Optional Window Features
As a dependable window company in York, PA, we offer numerous upgrades, including energy-efficient glass, decorative grilles, custom colors, and hardware options to personalize your windows.
Picture Windows Selections
Single Hung Windows
Sliding or Glider Windows
Window System Material Types
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Not valid with any other offers or promotions. Restrictions apply.
Must mention this coupon at the time of scheduling.

Not valid with any other offers or promotions. Restrictions apply.
Must mention this coupon at the time of scheduling.
Here's what our satisfied customers are saying...
At Appleby Systems, we take pride in providing exceptional home improvement services to our customers. We would be grateful if you could share your thoughts about our renovation company with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of Appleby Systems and let others know what you think.
Frequently Asked Questions
Upgrading your home's windows is an exciting project, but it naturally brings up a few practical questions about styles, materials, and the installation process. Having clear details upfront helps you select the right features for your living space and keeps your project moving along smoothly. Whether you're weighing the differences between popular window designs, comparing frame materials, or learning about what happens on installation day, our window company in York, PA has put together helpful answers below to guide your choices.
What is the difference between single-hung and double-hung windows?
The primary distinction between single-hung and double-hung windows comes down to how many window sashes move within the frame. On a single-hung window, the upper pane remains stationary in a fixed position, while the lower sash slides vertically up and down to let fresh air inside. Conversely, double-hung windows feature two fully operational sashes that can move independently from the top or bottom. This two-way movement gives you greater flexibility when controlling airflow throughout your home, allowing warm interior air to vent out through the upper sash while cooler air enters below.
Beyond ventilation differences, double-hung models offer a major advantage when it comes to routine maintenance and cleaning. Both sashes on a double-hung unit tilt inward toward your room, letting you comfortably clean the exterior glass without stepping outside or climbing a ladder. Single-hung windows remain a classic, economical choice that delivers reliable thermal performance and clean lines for traditional spaces.
How do bay and bow windows differ in design and room enhancement?
While both styles extend outward beyond your exterior wall to create additional interior room, bay and bow windows differ significantly in their overall shape and panel count. A classic bay window typically consists of three distinct glass panels angled outward, featuring a large center picture pane flanked by two smaller side windows. This geometric projection creates sharp, dramatic angles on your home's exterior while forming a deep interior ledge inside. In contrast, a bow window uses four or more individual panels arranged in a gentle, sweeping curve.
Inside your home, both designs flood living spaces with abundant natural light from multiple directions, making rooms feel noticeably larger and airier. The extra floor space created by the outward projection offers a perfect spot for cozy bench seating, a reading nook, or decorative displays. Bay windows excel at capturing direct light and creating a bold focal point in living or dining areas. Meanwhile, bow windows maximize daylight entry while adding a graceful, refined aesthetic to both historic and modern homes.
How do vinyl, wood, composite, and aluminum window frames compare in performance?
Choosing the right frame material means balancing durability, thermal insulation, visual warmth, and ongoing upkeep requirements. Vinyl frames are widely appreciated for their exceptional energy efficiency, moisture resistance, and low-maintenance appeal, requiring no painting or staining to stay looking fresh. Natural wood offers classic architectural warmth and unmatched natural beauty, though it requires routine sealing to protect against moisture absorption and rot. Composite materials combine the structural strength and appearance of wood with the effortless care of synthetic finishes, providing robust thermal insulation and warp resistance over time.
Aluminum frames deliver remarkable structural strength in a slim profile, allowing for expansive glass panes and contemporary design lines. However, because metal conducts heat, aluminum options rely heavily on thermal breaks to match the insulating performance of vinyl or composite units. Each material excels in specific scenarios, whether your priority is maximizing natural energy savings, preserving historic aesthetics, or minimizing weekend chores.
How does the professional window measuring and installation process work?
Our comprehensive installation process begins with an initial consultation where our window company in York, PA will evaluate your current window openings, discuss your home's stylistic needs, and review performance features. Once you select your ideal style and glass options, our team takes precise measurements to ensure each new unit is custom-crafted to fit your existing wall openings perfectly. On installation day, our experienced technicians carefully remove your old window units, taking special precautions to keep your surrounding interior trim, drywall, and siding completely protected.
After clearing away the old materials, our window company in York, PA will inspect the underlying wall framing for hidden moisture damage or structural settling before setting the new window into place. We level, square, and anchor the new frame securely, applying professional insulation foam around the perimeter to seal off potential drafts and air leaks. Outside, we install weather-resistant flashing and exterior capping to protect your home against wind-driven rain and moisture intrusion. Finally, we clean up the workspace, test all operating cranks and locks, and walk you through the finished work to guarantee every detail meets our standards.










