(814) 746-6338 Locally Owned & Operated

What is a sliding window?

The Window Source of Northwest PA installs sliding windows for homeowners across Erie and Northwest Pennsylvania, a clean, easy-operating choice for wider openings. Sashes glide side to side on a smooth track with no cranks or lifting, and lift out for easy cleaning. A practical fit for bedrooms, over counters, and ranch-style homes across Erie. Every install includes factory-direct pricing, professional installation, and a lifetime warranty.

Safe and Easy to Clean

All of our slider windows are easy to clean and simple to clean. Easily move the sashes out of the locked position to clean them easily and without the hassle. You’ll be able to clean every window without needing a ladder or being outside.

Slider Window Features

  • Multi-chambered 3 1/4 inch vinyl frames
  • Fusion-welded sashes and mainframes
  • Tandem brass sash rollers for easy operation
  • Sashes lift out for safe and easy cleaning
  • Warm edge spacer system
  • Double insulated glass
  • Meet Energy Star requirements with select glass packages
  • Limited Lifetime Warranty
Large window above a freestanding bathtub

Double the options with a Two-Lite Slider

You’ll love the versatility of the Two-Lite Slider, which allows you to move the sashes in either direction, allowing for ventilation on either side of the equal-sizes sashes.

Three-Lite Sliders

Our three-lite slider window has the best of both worlds, with one stationary section and two slider sections that can be operated from either side of the window. The three lite slider can have a fixed center up to two times the width of the fixed center allowing for two operative sashes that are 1/4 of the size. Other options include a three-lite slider with equal-sized sashes.

Replacement windows in a dining room
Sliding windows in a den

The Window Source Difference

More Than Just Windows, Doors, and Siding

The Window Source difference goes beyond premium products and professional installation. We’re committed to delivering an exceptional experience from start to finish, backed by the resources of a national brand and the personal touch of local ownership. When you choose The Window Source, you’re choosing a partner invested in your home’s long-term performance and your complete satisfaction.

Our Service Area

Our Erie & Northwest Pennsylvania Service Area

The Window Source of Northwest PA proudly installs replacement windows, entry and patio doors, and siding for homeowners across Erie and Northwest Pennsylvania. As a locally owned father-son team, we know these communities firsthand, from the neighborhoods of Erie and Millcreek to Meadville, Franklin, and the Shenango Valley. Wherever you are in our territory, you get the same factory-direct pricing, professional installation, and lifetime warranty.

Explore your city below to learn how we serve your neighborhood, or call us at (814) 746-6338 for a free, no-obligation estimate. Don’t see your town listed? Give us a call anyway, because chances are good we serve your area too.

Free in-home estimate

Get your free estimate in under an hour

We measure your openings, walk you through your options, and give you a clear written price. No pressure, no obligation.

  • Free, no-obligation estimate
  • Factory-direct pricing, guaranteed in writing
  • Limited lifetime warranty on every product
  • Locally owned by the Howell family, we reply within 24 hours

Request your free estimate

Call NowFree Estimate