Paoli’s Andersen Certified Elite Contractor. Serving Tredyffrin Township, the Main Line western 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.
Paoli sits at the western edge of the Main Line — one of the most recognized residential addresses in the Philadelphia region. The Paoli Transportation Center connects the community to Center City and beyond, and the surrounding Tredyffrin Township has long been one of Chester County’s most sought-after addresses for families who want Main Line proximity without Main Line density. The result is a community with genuine residential depth — well-established neighborhoods, mature tree canopy, and a housing stock that reflects decades of careful investment.
Much of that housing stock was built in a specific window: the 1955–1975 period when Tredyffrin Township’s ranches, split-levels, and early colonials went up across the community. These homes have been well-maintained over the decades — updated kitchens, finished basements, landscaped yards — but their original windows are now 50–70 years old. And original windows from that era, however well the house around them has been kept, have a consistent set of problems: failed seals, aluminum frames that conduct cold, sliding sashes that no longer operate smoothly, and energy performance that no amount of weatherstripping can meaningfully improve.
We’re the Andersen Certified Elite Contractor serving Paoli and all of Chester County. Over 20,000 windows and doors installed across PA, NJ and Delaware. Most installations completed in 1–2 days. Price Match Guarantee. The right contractor for Tredyffrin Township’s mid-century homes and for the full range of Paoli’s residential market.

Tredyffrin Township’s housing stock has a distinctive profile. The neighborhoods along Old Lancaster Road, Sugartown Road, Swedesford Road, and the residential streets threading between the Paoli and Berwyn train stations were built predominantly between 1950 and 1980. Ranches on modest lots. Split-levels with characteristic horizontal window bands. Early colonials with double-hung windows in configurations that were standard for their era. The homes have held their value and been well-maintained — but their windows are now at or past the end of a reasonable useful life.
Beyond the mid-century core, Tredyffrin Township also has significant 1980s and 1990s colonial construction and a number of genuinely significant older properties in the historic Paoli area. We install Andersen replacement windows throughout Paoli and Tredyffrin Township — every window a genuine Andersen product, every installation backed by our factory-certified crews and Andersen’s industry-leading warranty.
Double Hung Windows
The standard replacement for Paoli’s colonial and traditional-style homes. Both sashes tilt in for easy cleaning, excellent ventilation, and a classic profile that complements Tredyffrin Township’s established residential character.
Casement Windows
Hinged at the side for maximum airflow and a tight energy seal when closed. A popular upgrade in Paoli’s newer construction and in mid-century homes where energy performance is the driving priority.
Bay & Bow Windows
Project outward from the home, adding interior space and curb appeal. Common in Paoli’s larger colonial properties and in Tredyffrin Township homes where original bay configurations are being fully replaced.
Picture Windows
Fixed panels that maximize natural light and frame views. Popular in Paoli’s mid-century ranches where large front-facing picture windows are a defining architectural feature of the home.
Sliding Windows
The natural replacement for the horizontal sliding windows common in Tredyffrin Township’s mid-century ranches and split-levels. Smooth operation, low maintenance, and a clean contemporary profile.
Awning Windows
Hinged at the top for ventilation in any weather. Found in Paoli’s older home basement and bathroom configurations and in combination installations with casement windows in updated mid-century properties.
Paoli’s mid-century housing stock presents a consistent door replacement picture. Original aluminum sliding glass doors in the rear of Tredyffrin Township ranches and split-levels that have been rattling and drafting for years. Entry doors on 1960s and 1970s colonials that are long past their warranty life. Patio doors on 1980s and 1990s homes that no longer operate smoothly or seal against the elements. In every case, the fix is the same: a genuine Andersen or ProVia replacement installed by certified crews who know what they’re doing.
We install Andersen and ProVia doors throughout Paoli and Tredyffrin Township, handled by the same Andersen Certified Elite crews that install our windows. Most Paoli door installations completed in a single day, backed by manufacturer warranties and our own installation guarantee.

Entry Doors —we install Andersen and ProVia entry doors in fiberglass, steel, and wood options. On the Main Line, curb appeal matters — a quality entry door on a Paoli home is a visible investment that enhances the property from the street and improves security and energy performance every day.
Patio Doors — Andersen patio doors in French door and gliding configurations. Popular in Paoli’s larger colonial properties where rear deck and patio access is a central outdoor living feature.
Sliding Glass Doors — smooth, secure, and energy efficient. The most common door replacement in Tredyffrin Township’s mid-century ranches and split-levels where original aluminum sliding doors have reached the end of their useful life.
French Doors — classic hinged door pairs for patio and backyard access. A natural upgrade for Paoli’s larger colonial and traditional-style homes throughout Tredyffrin Township.
As an Andersen Certified Elite Contractor we install the full Andersen line for Paoli homeowners. For Tredyffrin Township’s mix of mid-century and contemporary residential construction, our most frequently recommended series are:
Andersen 100 Series
Fibrex composite construction. Low maintenance, energy efficient, and an excellent upgrade from the original aluminum and vinyl windows in Tredyffrin Township’s mid-century properties. Practical and durable.
Andersen 200 Series
Wood interior with easy-care exterior. For Paoli’s older historic properties and for homeowners who want the warmth and character of real wood inside without the ongoing maintenance demands.
Andersen 400 Series
Andersen’s most popular series and our standard recommendation for most Paoli installations. Exceptional durability, energy performance, and design flexibility across the full range of Tredyffrin Township’s housing stock — from mid-century ranches to newer colonials.
Andersen A-Series
Architect-grade performance with fully customizable sizes, profiles, and configurations. The right choice for Paoli’s larger custom and historic properties where standard sizing and profiles are a starting point rather than a constraint.
We walk you through every option during your free in-home consultation and make specific recommendations based on your Paoli home’s configuration, era, and your goals for the project.
We serve Paoli and all surrounding Tredyffrin Township and Chester County communities. Our installation crews know this part of the Main Line corridor well — the Paoli transportation hub area, the residential neighborhoods threading between the Paoli and Berwyn stations, and the broader Tredyffrin Township communities stretching toward Malvern, Devon, and Berwyn.
Paoli / Tredyffrin Township — our primary Paoli market. Full service window and door installation throughout all Tredyffrin Township communities.
Berwyn PA — neighboring Tredyffrin Township community along the Main Line to the east.
Devon PA — Tredyffrin Township community east of Berwyn along Route 30.
Malvern PA — neighboring Chester County community to the west along Route 30.
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, Paoli, 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., West Chester, PA
“ACRE was amazing at responding, addressing, and correcting issues quickly. Super friendly and courteous and does amazing work.”
Brian Y., Exton, PA
Yes. We serve Paoli and all of Tredyffrin Township including Berwyn, Devon, and the surrounding Main Line western corridor communities. Our Andersen Certified Elite installation crews are available for free in-home estimates 7 days a week throughout Paoli 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 Paoli PA and Tredyffrin Township hold this designation.
Most Paoli homeowners invest between $800 and $1,400 per window installed — including product, labor, and cleanup. We offer 0% financing and our Price Match Guarantee means you won’t find a better price for genuine Andersen windows from a certified installer anywhere in Paoli or Chester County.
Absolutely — mid-century Tredyffrin Township homes are one of our most active replacement markets. Ranches and split-levels from this era typically have original aluminum sliding windows, casement windows, or early double-hung configurations that are well past their useful life. Our crews are experienced with mid-century window systems and handle the full range of configurations common in Paoli’s 1955–1975 housing stock. In older properties where lead paint may be present around window frames, our EPA Lead Safe Certified crews handle the removal safely.
Most Paoli window replacement projects are completed in a single day. A typical 10–15 window installation takes one full day with our certified crew. 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. Paoli homeowners have full coverage on both the window and the installation.
Yes. We install Andersen and ProVia entry doors, patio doors, and sliding glass doors throughout Paoli and Chester County. The sliding glass door replacement in particular is one of our most common projects in Tredyffrin Township’s mid-century ranches and split-levels. Same Andersen Certified Elite crews, same one-day installation standard, same Price Match Guarantee.
We come to your Paoli home, measure every opening, walk you through your Andersen product options, and give you a guaranteed best price. No pressure. No obligation. Available 7 days a week throughout Paoli, Tredyffrin Township, and all of Chester County.
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