Devon’s Andersen Certified Elite Contractor. Serving Tredyffrin Township, the Main Line eastern corridor, and all of Chester County with premium window and door installation. Free in-home estimates. Price Match Guarantee.
40% Off & 0% Financing Available. Plus Our Price Match Guarantee — Find a Lower Price Anywhere and We'll Match It.
Devon sits at the eastern edge of Tredyffrin Township — where Chester County meets the Main Line in its most refined expression. The community is anchored by the Devon Horse Show grounds on Lancaster Avenue, home to one of the oldest and most prestigious equestrian events in the country. For well over a century, the Devon Horse Show has defined the character of this address — drawing visitors from across the country each spring and setting a standard for the surrounding community that the homes here have consistently reflected.
The properties in and around Devon carry that standard. Larger colonials and estate-style homes in the neighborhoods surrounding the Horse Show grounds. Well-maintained mid-century properties throughout the broader Tredyffrin Township section of Devon. Newer construction in the communities along the Chester/Montgomery County border where the Main Line transitions toward Wayne and Radnor. Every era of this housing stock represents a meaningful investment that has been maintained with care — and every era eventually reaches the point where the windows no longer perform at the level the home deserves.
We’re the Andersen Certified Elite Contractor serving Devon and all of Chester County. That designation represents the highest tier of Andersen certification — factory-trained crews, verified installation standards, and a track record of performance that very few window companies in this market can match. Over 20,000 windows and doors installed across PA, NJ and Delaware. Most installations completed in 1–2 days. Price Match Guarantee. The standard of installation that Devon homes deserve.

Devon’s housing stock reflects the full range of Tredyffrin Township’s residential development, concentrated at the premium end. The streets surrounding the Devon Horse Show grounds — along Devon State Road, Conestoga Road, and the residential blocks running north and south from Lancaster Avenue — include some of the most significant residential properties in Chester County: larger colonials and estate-style homes on generous lots that have been maintained and updated over decades. Further out, Devon transitions into the same mid-century Tredyffrin Township residential fabric as Berwyn and Paoli, with ranches and split-levels from the 1950s through 1970s making up a significant portion of the community’s housing stock.
We install Andersen replacement windows throughout Devon and the surrounding Tredyffrin Township communities — from the premium estate properties near the Horse Show grounds to the mid-century neighborhoods throughout the broader community. Every window is a genuine Andersen product, every installation backed by our factory-certified crews and Andersen’s industry-leading warranty.
Double Hung Windows
The most versatile and most popular choice across Devon’s range of housing eras. Both sashes tilt in for easy cleaning, excellent ventilation, and a classic profile that suits everything from Devon’s estate-style colonials to its mid-century ranches.
Casement Windows
Hinged at the side for maximum airflow and a tight energy seal when closed. A popular upgrade in Devon’s larger colonials and in the newer construction throughout the eastern Tredyffrin corridor where clean lines and energy performance are the priority.
Bay & Bow Windows
Project outward from the home, adding interior space and significant curb appeal. Common in Devon’s larger estate-style properties along Conestoga Road and Devon State Road where bay configurations are a standard architectural feature.
Picture Windows
Fixed panels that maximize natural light and frame views. Popular in Devon’s larger homes where living and dining rooms are oriented toward rear yard and garden views, and in mid-century properties where oversized front-facing windows define the home’s facade.
Sliding Windows
Smooth horizontal operation, low maintenance. The natural replacement for aluminum sliders in Devon’s mid-century ranches and split-levels throughout the broader Tredyffrin Township community.
Awning Windows
Hinged at the top for ventilation in any weather. Found in Devon’s older basement and bathroom configurations and in combination with casement windows in the community’s updated properties.
In Devon, a door is part of a home’s presentation. The entry doors on the estate-style properties near the Horse Show grounds set the tone from the street — and when they’re worn, drafty, or visually dated, it shows against an otherwise well-maintained property. The patio and sliding glass doors on Devon’s mid-century ranches and colonials have their own set of issues after 40 or 50 years of use. We install Andersen and ProVia doors throughout Devon and Tredyffrin Township with the same standard of care we bring to the window installation — precise, clean, and backed by warranty on both the product and the workmanship.
Handled by the same Andersen Certified Elite crews that install our windows. Most Devon door installations completed in a single day.

Entry Doors — we install Andersen and ProVia entry doors in fiberglass, steel, and wood options. In Devon’s premium residential neighborhoods, a quality entry door is a visible investment in the property’s presentation — and a meaningful improvement in security and energy performance from day one.
Patio Doors — Andersen patio doors in French door and gliding configurations. Devon’s larger estate properties and colonials frequently feature rear terraces, patios, and outdoor living areas where a quality patio door is both a design statement and a daily-use essential.
Sliding Glass Doors — smooth, secure, and energy efficient. Andersen sliding glass doors replace worn originals in Devon’s mid-century ranches and split-levels with a clean, modern upgrade that lasts.
French Doors — classic hinged door pairs for patio and garden access. The natural architectural choice for Devon’s colonial and estate-style properties where the formality of a French door suits the character of the home.
As an Andersen Certified Elite Contractor we install the full Andersen line for Devon homeowners. Devon’s premium housing profile and quality-conscious buyer base make the upper end of the Andersen line the natural starting point for most installations:
Andersen 100 Series
Fibrex composite construction. Low maintenance, energy efficient, and a strong practical upgrade for Devon’s mid-century ranches and split-levels where durability and value are the primary considerations.
Andersen 200 Series
Wood interior with easy-care exterior. For Devon’s older properties where interior wood finishes are part of the home’s character and homeowners want to preserve that warmth and authenticity.
Andersen 400 Series
Andersen’s most popular series and our standard recommendation for Devon’s colonial and mid-century properties where performance, durability, and design flexibility are the priority. Exceptional quality across every window style and configuration.
Andersen A-Series
Architect-grade performance with fully customizable sizes, profiles, and configurations. The right choice for Devon’s estate-style colonials and larger custom properties where window proportions are part of the home’s architectural design. If a home was designed with specific window specifications in mind, the A-Series is built to meet them.
We walk you through every option during your free in-home consultation and make specific recommendations based on your Devon home’s era, architecture, and your goals for the project.
We serve Devon and all surrounding Tredyffrin Township and Chester County communities. Our installation crews know the eastern Main Line corridor well — the Devon Horse Show area, the residential neighborhoods along Lancaster Avenue and Conestoga Road, and the broader Tredyffrin Township communities connecting Devon to Berwyn and Paoli to the west and Wayne to the east.
Devon / Tredyffrin Township — our primary Devon market. Full service window and door installation throughout all Devon-area Tredyffrin Township communities.
Berwyn PA — neighboring Tredyffrin Township community to the west.
Paoli PA — western Tredyffrin Township community along the Main Line.
Wayne PA — Radnor Township community immediately to the east along Lancaster Avenue.
Malvern PA — East Whiteland Township community to the southwest.
Exton PA — West Whiteland Township community to the northwest.
West Chester PA — Chester County seat to the south.
We serve all of Chester County. View our full Chester County service area for complete coverage details.
“The crew of 5 showed up on time and were super professional. The sales person worked with us and spent the appropriate amount of time making sure we knew all our options — not overly pushy. This company really shines on installation.”
— C. Gettman, Devon, PA
“They left my house cleaner than when they arrived. The crew answered all of my questions and showed us exactly how the windows work. 10/10 recommend.”
Stephanie D., Malvern, PA
“Everyone was friendly, professional, and extremely knowledgeable. I had so many questions and they took the time to answer every one. They proved to be the best choice.”
— Megan D., Berwyn, PA
“ACRE was amazing at responding, addressing, and correcting issues quickly. Super friendly and courteous and does amazing work.”
Brian Y., Paoli, PA
Yes. We serve Devon and all of Tredyffrin Township including Berwyn, Paoli, and the surrounding Main Line eastern corridor communities. Our Andersen Certified Elite installation crews are available for free in-home estimates 7 days a week throughout Devon and Chester County.
The highest tier of installer certification awarded by Andersen Windows & Doors. It requires factory training, verified installation standards, and a proven performance record. Very few window companies serving Devon PA and Tredyffrin Township hold this designation — it is the clearest signal of genuine Andersen expertise in this market.
Most Devon homeowners invest between $800 and $1,400 per window installed — including product, labor, and cleanup. Premium series such as the A-Series carry a higher price point that reflects the product’s customization and performance. We offer 0% financing and our Price Match Guarantee means you won’t find a better price for the same Andersen product from a certified installer anywhere in Devon or Chester County.
For Devon’s larger estate-style colonials and custom properties, the A-Series delivers fully customizable configurations and architect-grade performance. For Devon’s colonial and mid-century homes where premium performance and design flexibility are the priority, the 400 Series is our standard recommendation. For older Devon properties where interior wood finishes matter, the 200 Series is the right choice. We make specific recommendations during your free in-home consultation based on your home’s architecture, era, and your goals.
Most Devon window replacement projects are completed in a single day. Larger estate-style properties with higher window counts may require two days. We provide a specific timeline during your free in-home consultation.
Yes — Andersen’s manufacturer warranty on the product plus our own installation warranty on the labor. Devon homeowners have full coverage on both the window and the installation.
Yes. We install Andersen and ProVia entry doors, patio doors, French doors, and sliding glass doors throughout Devon and Chester County. Same Andersen Certified Elite crews, same one-day installation standard, same Price Match Guarantee.
We come to your Devon home, measure every opening, walk you through every Andersen product option, and give you an honest recommendation and a guaranteed best price. No pressure. No obligation. Available 7 days a week throughout Devon, Tredyffrin Township, and all of Chester County.
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