Replacement Windows

Replacement windows affect the look of your home. They also have a major impact on energy usage and comfort. When you’re considering replacement windows, consider the materials, shape, and functionality. You want to make sure each window makes your home inviting, increases efficiency, and keeps it secure. Take a closer look at our vinyl replacement window options!

Aspect Series

Replace your windows ONE time with ProVia’s durable, long-lasting windows. Your choice of new replacement windows not only affects the architectural look of your home but has a major impact on your energy usage and comfort.

You don’t need to sacrifice strength at these critical barriers to your home. Zephyr Thomas offers the most technologically advanced materials for maximized strength against harsh weather, intrusion, and health hazards.

If you are looking for vinyl replacement windows in Lancaster, you should know that all of our windows are Energy Star® and National Fenestration Rating Council (NFRC) certified. Zephyr Thomas also carries the finest fiberglass entry doors Lancaster PA has to offer, so check out our door selection as well!

Simply put, ProVia’s windows are top-of-the-line, will work hard for you, and will perform beyond your expectations. When searching for replacement windows in Lancaster, PA, you will find it is the most sensible window solution for your home.

You may be looking for a window equipped with advanced engineering that offers exceptional energy performance, safety, and security, is virtually maintenance-free enjoyment, and offers ease of operation. ProVia incorporates ALL of these important elements into one window.

Zephyr Thomas is your authorized Lancaster windows dealer for ProVia. ProVia’s Aspect Series is the superior window choice for your family, home, lifestyle, and budget.

Bay Window

A bay window consists of three window segments that project out from the wall to the outside at a sharp angle, most often either 30, 45, or 90 degrees. A bay window can consist of a number of different configurations.

The most common is a quarter-half-quarter layout with a picture window as the center window and either casement or double-hung windows as the end windows. We call these end windows “flankers”. Bay windows typically have a wider sill, called a seatboard, which can be a wonderful little nook for any number of décor ideas.

Bow Window

A bow window is similar to a bay window in that it also projects out from the wall to the outside. However, a bow window curves instead of being at an angle. A bow window can consist of several different configurations. Bow windows are divided into even sections, called lites.

The most common types are 3-lite, 4-lite, and 5-lite bow windows. The operating lites are typically casement or double-hung windows and the fixed lites are either picture windows or fixed casement windows. The end windows, or flankers, typically operate, or all the windows can be fixed picture windows. A bow window also has a window sill, like a bay window.

Casement Window

A casement window is most commonly recognized as a crank-out window. These windows are often seen as part of a bay or bow window, but these are not the only places where casement windows are an appealing option.

Above a kitchen sink or in a space where you are really looking to maximize the opening area of the window are great places for casement windows. Casement windows can be one single window or multiple lite, depending on the opening and application.

Sliding Window

Sliding windows do just that, slide. Sliding windows have many great applications, but are probably most commonly recognized as part of a sunroom or porch enclosure. These windows allow you to open either the left or right side of the window. Most commonly seen in the 2-lite option, these windows can also be 3 lites, with the end lites operating and a fixed lite in the middle.

Double-Hung Windows

Double-hung windows are probably the most common style of window. These windows consist of a top lite (or sash) and a bottom lite (or sash). Double-hung windows can typically be opened from the top or the bottom. This is a versatile window style that can be used not only in your home, but also works well for additions, sunrooms, and porch enclosures.

Step 1

Step 1
Step 2
Step 3

STEP 1: Examine the Thermal Performance of the Entire Window

U Factor: U Factor measures thermal insulation. The U Factor indicates how easily heat will flow through the window, whereas the R Factor indicates the opposite, how well the window will resist heat flow. The lower the U Factor, the better a window insulates.

Solar Heat Gain Coefficient (SHGC): SHGC measures the amount of solar radiation admitted through a window. The lower a window’s SHGC, the less solar heat is transmitted into the house and the easier it is to keep your house cool in summer.

On the other hand, in northern climates, a higher SHGC can provide beneficial passive solar heating in the winter. Aspect offers a variety of high-performance Low-E glass packages with varying SHGC ratings to suit your needs, based on your needs.

Visible Transmittance (VT): VT measures the percentage of visible light that is admitted through the window. High-performance glass packages have been designed to enhance a window’s thermal performance by blocking ultraviolet and infrared light while maximizing visible light transmission. Clear glass itself blocks about 20% of visible light.

STEP 2: Check the Structural Performance of the Entire Window

All of ProVia’s windows are tested to standards set forth by the American Architectural Manufacturer’s Association (AAMA) for structural performance. Air infiltration, water penetration, and structural wind loads are three commonly referenced tests.

What Is Air Infiltration? The amount of air that passes through the seals of a window’s operating sashes per minute, per square foot of window. Using a typical vinyl window would be like having a hole in the wall of your home, leaking 9.68 balloons worth of air per minute!

High-quality, energy-efficient windows have air infiltration ratings lower than 0.3. ProVia’s Aspect Series windows achieve an excellent air infiltration rating of 0.05 or below.

STEP 3: Verify the Thermal Performance of the Glass

Super Spacer® Aspect Windows: ProVia uses advanced Super Spacer® technology as a standard to create insulated glass with a warm edge around the perimeter. The edge of the glass is typically the coldest spot on the window and can be prone to condensation.

Other windows use glass panes with rectangular aluminum that conducts the heat away from the inner pane of glass, which results in a cold edge. Super Spacer® is a non-metallic, structural foam spacer.

Super Spacer® blocks heat escape, dramatically reduces condensation, and offsets the effects of temperature changes that prevent stress cracks.

INNERGY® Thermal Reinforcements: In addition to Super Spacer®, ProVia also uses INNERGY® thermal reinforcements in their windows instead of aluminum. This is an innovative and energy-efficient alternative that is 700 times better than aluminum in material comparisons on thermal performance.

Aspect’s Custom Design

Choose the glass, grid, and color options that are perfect for you and your home– the possibilities are nearly endless. The flexibility of our window designs and the ability to integrate any design and size into your home allow for optimum cost-effectiveness and energy efficiency when you need new windows in or around Lancaster County. The choice is truly yours– style, size, color, and an assortment of specialty window shapes, grid styles, and glass options will provide a look designed exclusively for your home.

Download the Aspect (PDF) brochure for more information and features. We have other window series and options available, so visit our showroom or call for more information.

For additional information about window ratings, efficiency, and how that may affect your energy usage, check out these links:

EnergyStar

EnergyStar Window Tax Credit Program Changes

National Fenestration Rating Council (NFRC)

Residential Energy Services Network (RESNET)

Environmental Protection Agency (EPA)

Efficient Windows Collaborative

Berkeley Lab

Before And After

Click to Use the Before & After Slider

Inspiration Gallery

Hiestand - replacement windows and siding

Lentz - blue glass bottles along a window sill

Testimonials About Replacement Windows

Dear sir, So often we hear the bad experiences people have when they have work done at their home. We wanted to convey the positive experience we had with you company. We were interested in replacement windows and patio door. Daryel Sensenig came to our home, answered our questions and recommended Seaway windows and patio door. We were in the middle of refinance on our home and needed time to get the loan required to do the work, and Daryel was very understanding of our situation. Now we come to early April and the install. Patrick and Thomas come to do the work. They were on time and did a remarkable job! The window installation is so seamless, you can not tell the windows were not put in when the house was built. The patio door installed by Thomas is outstanding! With the new door, there was going to be a large gap between the chair rail and the standard case molding. Thomas said he could caulk it, but he didn't think it would look right. He took the time to find larger casing to meet with the chair rail. Let me tell you, that decision made the door! We can not tell you how happy we are with your products, and most of all, the craftsman that installed the products. Your entire staff is to be congratulated, for a job well done! Your company was recommended to us thru friends. We will surely recommend your company to our friends and family. As other home improvements arise, Zephyr Thomas will be our first call. Thank you so much.

- Bill and Carol Fry

I was referred to Daryel at Zephyr Thomas by my daughter after she had a project done by them. I have been wanting a bay window for some time but didn’t know who to have do it. I’m so happy I waited until I found Zephyr Thomas. Daryel was easy to work with. Very personable. Made recommendations that I loved. I worked with Renee in the office to schedule the installation. She was so sweet. The install crew of Thomas and Brian were great as well. Polite, clean and perfectionists at their craft. I love my new window. Great improvement to my home. I would recommend the entire at Zephyr Thomas to anyone.

- Sandy Schlott

Windows, Deck, & 3-Season Room

Thank you to the whole team @ Zephyr Thomas. We had replacement windows & new storm door put in. We are very satisfied with them. From our salesman Brad, too the workers (Don & Steve), and also the pleasant office staff. Everyone was a pleasure to deal with. That is a testament to the type of people you hire & the family like work environment. Please let everyone know how thankful we are!

- Jessica & Brent Palsgrove